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target.c

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  • target.c 113.47 KiB
    /***************************************************************************
     *   Copyright (C) 2005 by Dominic Rath                                    *
     *   Dominic.Rath@gmx.de                                                   *
     *                                                                         *
     *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
     *   oyvind.harboe@zylin.com                                               *
     *                                                                         *
     *   Copyright (C) 2008, Duane Ellis                                       *
     *   openocd@duaneeellis.com                                               *
     *                                                                         *
     *   Copyright (C) 2008 by Spencer Oliver                                  *
     *   spen@spen-soft.co.uk                                                  *
     *                                                                         *
     *   Copyright (C) 2008 by Rick Altherr                                    *
     *   kc8apf@kc8apf.net>                                                    *
     *                                                                         *
     *   This program is free software; you can redistribute it and/or modify  *
     *   it under the terms of the GNU General Public License as published by  *
     *   the Free Software Foundation; either version 2 of the License, or     *
     *   (at your option) any later version.                                   *
     *                                                                         *
     *   This program is distributed in the hope that it will be useful,       *
     *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
     *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
     *   GNU General Public License for more details.                          *
     *                                                                         *
     *   You should have received a copy of the GNU General Public License     *
     *   along with this program; if not, write to the                         *
     *   Free Software Foundation, Inc.,                                       *
     *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
     ***************************************************************************/
    #ifdef HAVE_CONFIG_H
    #include "config.h"
    #endif
    
    #include "target.h"
    #include "target_type.h"
    #include "target_request.h"
    #include "time_support.h"
    #include "register.h"
    #include "trace.h"
    #include "image.h"
    #include "jtag.h"
    
    
    static int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    
    static int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_test_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_fast_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    static int handle_fast_load_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
    
    static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
    static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
    static int jim_target(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
    
    static int target_array2mem(Jim_Interp *interp, target_t *target, int argc, Jim_Obj *const *argv);
    static int target_mem2array(Jim_Interp *interp, target_t *target, int argc, Jim_Obj *const *argv);
    
    /* targets */
    extern target_type_t arm7tdmi_target;
    extern target_type_t arm720t_target;
    extern target_type_t arm9tdmi_target;
    extern target_type_t arm920t_target;
    extern target_type_t arm966e_target;
    extern target_type_t arm926ejs_target;
    extern target_type_t fa526_target;
    extern target_type_t feroceon_target;
    extern target_type_t xscale_target;
    extern target_type_t cortexm3_target;
    extern target_type_t cortexa8_target;
    extern target_type_t arm11_target;
    extern target_type_t mips_m4k_target;
    extern target_type_t avr_target;
    
    target_type_t *target_types[] =
    {
    	&arm7tdmi_target,
    	&arm9tdmi_target,
    	&arm920t_target,
    	&arm720t_target,
    	&arm966e_target,
    	&arm926ejs_target,
    	&fa526_target,
    	&feroceon_target,
    	&xscale_target,
    	&cortexm3_target,
    	&cortexa8_target,
    	&arm11_target,
    	&mips_m4k_target,
    	&avr_target,
    	NULL,
    };
    
    target_t *all_targets = NULL;
    target_event_callback_t *target_event_callbacks = NULL;
    target_timer_callback_t *target_timer_callbacks = NULL;
    
    const Jim_Nvp nvp_assert[] = {
    	{ .name = "assert", NVP_ASSERT },
    	{ .name = "deassert", NVP_DEASSERT },
    	{ .name = "T", NVP_ASSERT },
    	{ .name = "F", NVP_DEASSERT },
    	{ .name = "t", NVP_ASSERT },
    	{ .name = "f", NVP_DEASSERT },
    	{ .name = NULL, .value = -1 }
    };
    
    const Jim_Nvp nvp_error_target[] = {
    	{ .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
    	{ .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
    	{ .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
    	{ .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
    	{ .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
    	{ .value = ERROR_TARGET_UNALIGNED_ACCESS   , .name = "err-unaligned-access" },
    	{ .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
    	{ .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
    	{ .value = ERROR_TARGET_TRANSLATION_FAULT  , .name = "err-translation-fault" },
    	{ .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
    	{ .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
    	{ .value = -1, .name = NULL }
    };
    
    const char *target_strerror_safe(int err)
    {
    	const Jim_Nvp *n;
    
    	n = Jim_Nvp_value2name_simple(nvp_error_target, err);
    	if (n->name == NULL) {
    		return "unknown";
    	} else {
    		return n->name;
    	}
    }
    
    static const Jim_Nvp nvp_target_event[] = {
    	{ .value = TARGET_EVENT_OLD_gdb_program_config , .name = "old-gdb_program_config" },
    	{ .value = TARGET_EVENT_OLD_pre_resume         , .name = "old-pre_resume" },
    
    	{ .value = TARGET_EVENT_EARLY_HALTED, .name = "early-halted" },
    	{ .value = TARGET_EVENT_HALTED, .name = "halted" },
    	{ .value = TARGET_EVENT_RESUMED, .name = "resumed" },
    	{ .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
    	{ .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
    
    	{ .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
    	{ .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
    
    	/* historical name */
    
    	{ .value = TARGET_EVENT_RESET_START, .name = "reset-start" },
    
    	{ .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
    	{ .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
    	{ .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
    	{ .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
    	{ .value = TARGET_EVENT_RESET_HALT_PRE,      .name = "reset-halt-pre" },
    	{ .value = TARGET_EVENT_RESET_HALT_POST,     .name = "reset-halt-post" },
    	{ .value = TARGET_EVENT_RESET_WAIT_PRE,      .name = "reset-wait-pre" },
    	{ .value = TARGET_EVENT_RESET_WAIT_POST,     .name = "reset-wait-post" },
    	{ .value = TARGET_EVENT_RESET_INIT , .name = "reset-init" },
    	{ .value = TARGET_EVENT_RESET_END, .name = "reset-end" },
    
    	{ .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
    	{ .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
    
    	{ .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
    	{ .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
    
    	{ .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
    	{ .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
    
    	{ .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
    	{ .value = TARGET_EVENT_GDB_FLASH_WRITE_END  , .name = "gdb-flash-write-end"   },
    
    	{ .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
    	{ .value = TARGET_EVENT_GDB_FLASH_ERASE_END  , .name = "gdb-flash-erase-end" },
    
    	{ .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
    	{ .value = TARGET_EVENT_RESUMED     , .name = "resume-ok" },
    	{ .value = TARGET_EVENT_RESUME_END  , .name = "resume-end" },
    
    	{ .name = NULL, .value = -1 }
    };
    
    const Jim_Nvp nvp_target_state[] = {
    	{ .name = "unknown", .value = TARGET_UNKNOWN },
    	{ .name = "running", .value = TARGET_RUNNING },
    	{ .name = "halted",  .value = TARGET_HALTED },
    	{ .name = "reset",   .value = TARGET_RESET },
    	{ .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
    	{ .name = NULL, .value = -1 },
    };
    
    const Jim_Nvp nvp_target_debug_reason [] = {
    	{ .name = "debug-request"            , .value = DBG_REASON_DBGRQ },
    	{ .name = "breakpoint"               , .value = DBG_REASON_BREAKPOINT },
    	{ .name = "watchpoint"               , .value = DBG_REASON_WATCHPOINT },
    	{ .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
    	{ .name = "single-step"              , .value = DBG_REASON_SINGLESTEP },
    	{ .name = "target-not-halted"        , .value = DBG_REASON_NOTHALTED  },
    	{ .name = "undefined"                , .value = DBG_REASON_UNDEFINED },
    	{ .name = NULL, .value = -1 },
    };
    
    const Jim_Nvp nvp_target_endian[] = {
    	{ .name = "big",    .value = TARGET_BIG_ENDIAN },
    	{ .name = "little", .value = TARGET_LITTLE_ENDIAN },
    	{ .name = "be",     .value = TARGET_BIG_ENDIAN },
    	{ .name = "le",     .value = TARGET_LITTLE_ENDIAN },
    	{ .name = NULL,     .value = -1 },
    };
    
    const Jim_Nvp nvp_reset_modes[] = {
    	{ .name = "unknown", .value = RESET_UNKNOWN },
    	{ .name = "run"    , .value = RESET_RUN },
    	{ .name = "halt"   , .value = RESET_HALT },
    	{ .name = "init"   , .value = RESET_INIT },
    	{ .name = NULL     , .value = -1 },
    };
    
    const char *
    target_state_name( target_t *t )
    {
    	const char *cp;
    	cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
    	if( !cp ){
    		LOG_ERROR("Invalid target state: %d", (int)(t->state));
    		cp = "(*BUG*unknown*BUG*)";
    	}
    	return cp;
    }
    
    static int max_target_number(void)
    {
    	target_t *t;
    	int x;
    
    	x = -1;
    	t = all_targets;
    	while (t) {
    		if (x < t->target_number) {
    			x = (t->target_number) + 1;
    		}
    		t = t->next;
    	}
    	return x;
    }
    
    /* determine the number of the new target */
    static int new_target_number(void)
    {
    	target_t *t;
    	int x;
    
    	/* number is 0 based */
    	x = -1;
    	t = all_targets;
    	while (t) {
    		if (x < t->target_number) {
    			x = t->target_number;
    		}
    		t = t->next;
    	}
    	return x + 1;
    }
    
    static int target_continuous_poll = 1;
    
    /* read a uint32_t from a buffer in target memory endianness */
    uint32_t target_buffer_get_u32(target_t *target, const uint8_t *buffer)
    {
    	if (target->endianness == TARGET_LITTLE_ENDIAN)
    		return le_to_h_u32(buffer);
    	else
    		return be_to_h_u32(buffer);
    }
    
    /* read a uint16_t from a buffer in target memory endianness */
    uint16_t target_buffer_get_u16(target_t *target, const uint8_t *buffer)
    {
    	if (target->endianness == TARGET_LITTLE_ENDIAN)
    		return le_to_h_u16(buffer);
    	else
    		return be_to_h_u16(buffer);
    }
    
    /* read a uint8_t from a buffer in target memory endianness */
    uint8_t target_buffer_get_u8(target_t *target, const uint8_t *buffer)
    {
    	return *buffer & 0x0ff;
    }
    
    /* write a uint32_t to a buffer in target memory endianness */
    void target_buffer_set_u32(target_t *target, uint8_t *buffer, uint32_t value)
    {
    	if (target->endianness == TARGET_LITTLE_ENDIAN)
    		h_u32_to_le(buffer, value);
    	else
    		h_u32_to_be(buffer, value);
    }
    
    /* write a uint16_t to a buffer in target memory endianness */
    void target_buffer_set_u16(target_t *target, uint8_t *buffer, uint16_t value)
    {
    	if (target->endianness == TARGET_LITTLE_ENDIAN)
    		h_u16_to_le(buffer, value);
    	else
    		h_u16_to_be(buffer, value);
    }
    
    /* write a uint8_t to a buffer in target memory endianness */
    void target_buffer_set_u8(target_t *target, uint8_t *buffer, uint8_t value)
    {
    	*buffer = value;
    }
    
    /* return a pointer to a configured target; id is name or number */
    target_t *get_target(const char *id)
    {
    	target_t *target;
    
    	/* try as tcltarget name */
    	for (target = all_targets; target; target = target->next) {
    		if (target->cmd_name == NULL)
    			continue;
    		if (strcmp(id, target->cmd_name) == 0)
    			return target;
    	}
    
    	/* no match, try as number */
    	unsigned num;
    	if (parse_uint(id, &num) != ERROR_OK)
    		return NULL;
    
    	for (target = all_targets; target; target = target->next) {
    		if (target->target_number == (int)num)
    			return target;
    	}
    
    	return NULL;
    }
    
    /* returns a pointer to the n-th configured target */
    static target_t *get_target_by_num(int num)
    {
    	target_t *target = all_targets;
    
    	while (target) {
    		if (target->target_number == num) {
    			return target;
    		}
    		target = target->next;
    	}
    
    	return NULL;
    }
    
    int get_num_by_target(target_t *query_target)
    {
    	return query_target->target_number;
    }
    
    target_t* get_current_target(command_context_t *cmd_ctx)
    {
    	target_t *target = get_target_by_num(cmd_ctx->current_target);
    
    	if (target == NULL)
    	{
    		LOG_ERROR("BUG: current_target out of bounds");
    		exit(-1);
    	}
    
    	return target;
    }
    
    int target_poll(struct target_s *target)
    {
    	/* We can't poll until after examine */
    	if (!target_was_examined(target))
    	{
    		/* Fail silently lest we pollute the log */
    		return ERROR_FAIL;
    	}
    	return target->type->poll(target);
    }
    
    int target_halt(struct target_s *target)
    {
    	/* We can't poll until after examine */
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    	return target->type->halt(target);
    }
    
    int target_resume(struct target_s *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
    {
    	int retval;
    
    	/* We can't poll until after examine */
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    
    	/* note that resume *must* be asynchronous. The CPU can halt before we poll. The CPU can
    	 * even halt at the current PC as a result of a software breakpoint being inserted by (a bug?)
    	 * the application.
    	 */
    	if ((retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution)) != ERROR_OK)
    		return retval;
    
    	return retval;
    }
    
    int target_process_reset(struct command_context_s *cmd_ctx, enum target_reset_mode reset_mode)
    {
    	char buf[100];
    	int retval;
    	Jim_Nvp *n;
    	n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
    	if (n->name == NULL) {
    		LOG_ERROR("invalid reset mode");
    		return ERROR_FAIL;
    	}
    
    	/* disable polling during reset to make reset event scripts
    	 * more predictable, i.e. dr/irscan & pathmove in events will
    	 * not have JTAG operations injected into the middle of a sequence.
    	 */
    	int save_poll = target_continuous_poll;
    	target_continuous_poll = 0;
    
    	sprintf(buf, "ocd_process_reset %s", n->name);
    	retval = Jim_Eval(interp, buf);
    
    	target_continuous_poll = save_poll;
    
    	if (retval != JIM_OK) {
    		Jim_PrintErrorMessage(interp);
    		return ERROR_FAIL;
    	}
    
    	/* We want any events to be processed before the prompt */
    	retval = target_call_timer_callbacks_now();
    
    	return retval;
    }
    
    static int default_virt2phys(struct target_s *target, uint32_t virtual, uint32_t *physical)
    {
    	*physical = virtual;
    	return ERROR_OK;
    }
    
    static int default_mmu(struct target_s *target, int *enabled)
    {
    	*enabled = 0;
    	return ERROR_OK;
    }
    
    static int default_examine(struct target_s *target)
    {
    	target_set_examined(target);
    	return ERROR_OK;
    }
    
    int target_examine_one(struct target_s *target)
    {
    	return target->type->examine(target);
    }
    
    static int jtag_enable_callback(enum jtag_event event, void *priv)
    {
    	target_t *target = priv;
    
    	if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
    		return ERROR_OK;
    
    	jtag_unregister_event_callback(jtag_enable_callback, target);
    	return target_examine_one(target);
    }
    
    
    /* Targets that correctly implement init + examine, i.e.
     * no communication with target during init:
     *
     * XScale
     */
    int target_examine(void)
    {
    	int retval = ERROR_OK;
    	target_t *target;
    
    	for (target = all_targets; target; target = target->next)
    	{
    		/* defer examination, but don't skip it */
    		if (!target->tap->enabled) {
    			jtag_register_event_callback(jtag_enable_callback,
    					target);
    			continue;
    		}
    		if ((retval = target_examine_one(target)) != ERROR_OK)
    			return retval;
    	}
    	return retval;
    }
    const char *target_get_name(struct target_s *target)
    {
    	return target->type->name;
    }
    
    static int target_write_memory_imp(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
    {
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    	return target->type->write_memory_imp(target, address, size, count, buffer);
    }
    
    static int target_read_memory_imp(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
    {
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    	return target->type->read_memory_imp(target, address, size, count, buffer);
    }
    
    static int target_soft_reset_halt_imp(struct target_s *target)
    {
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    	return target->type->soft_reset_halt_imp(target);
    }
    
    static int target_run_algorithm_imp(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_param, uint32_t entry_point, uint32_t exit_point, int timeout_ms, void *arch_info)
    {
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    	return target->type->run_algorithm_imp(target, num_mem_params, mem_params, num_reg_params, reg_param, entry_point, exit_point, timeout_ms, arch_info);
    }
    
    int target_read_memory(struct target_s *target,
    		uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
    {
    	return target->type->read_memory(target, address, size, count, buffer);
    }
    
    int target_write_memory(struct target_s *target,
    		uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
    {
    	return target->type->write_memory(target, address, size, count, buffer);
    }
    int target_bulk_write_memory(struct target_s *target,
    		uint32_t address, uint32_t count, uint8_t *buffer)
    {
    	return target->type->bulk_write_memory(target, address, count, buffer);
    }
    
    int target_add_breakpoint(struct target_s *target,
    		struct breakpoint_s *breakpoint)
    {
    	return target->type->add_breakpoint(target, breakpoint);
    }
    int target_remove_breakpoint(struct target_s *target,
    		struct breakpoint_s *breakpoint)
    {
    	return target->type->remove_breakpoint(target, breakpoint);
    }
    
    int target_add_watchpoint(struct target_s *target,
    		struct watchpoint_s *watchpoint)
    {
    	return target->type->add_watchpoint(target, watchpoint);
    }
    int target_remove_watchpoint(struct target_s *target,
    		struct watchpoint_s *watchpoint)
    {
    	return target->type->remove_watchpoint(target, watchpoint);
    }
    
    int target_get_gdb_reg_list(struct target_s *target,
    		struct reg_s **reg_list[], int *reg_list_size)
    {
    	return target->type->get_gdb_reg_list(target, reg_list, reg_list_size);
    }
    int target_step(struct target_s *target,
    		int current, uint32_t address, int handle_breakpoints)
    {
    	return target->type->step(target, current, address, handle_breakpoints);
    }
    
    
    int target_run_algorithm(struct target_s *target,
    		int num_mem_params, mem_param_t *mem_params,
    		int num_reg_params, reg_param_t *reg_param,
    		uint32_t entry_point, uint32_t exit_point,
    		int timeout_ms, void *arch_info)
    {
    	return target->type->run_algorithm(target,
    			num_mem_params, mem_params, num_reg_params, reg_param,
    			entry_point, exit_point, timeout_ms, arch_info);
    }
    
    /// @returns @c true if the target has been examined.
    bool target_was_examined(struct target_s *target)
    {
    	return target->type->examined;
    }
    /// Sets the @c examined flag for the given target.
    void target_set_examined(struct target_s *target)
    {
    	target->type->examined = true;
    }
    // Reset the @c examined flag for the given target.
    void target_reset_examined(struct target_s *target)
    {
    	target->type->examined = false;
    }
    
    
    int target_init(struct command_context_s *cmd_ctx)
    {
    	target_t *target = all_targets;
    	int retval;
    
    	while (target)
    	{
    		target_reset_examined(target);
    		if (target->type->examine == NULL)
    		{
    			target->type->examine = default_examine;
    		}
    
    		if ((retval = target->type->init_target(cmd_ctx, target)) != ERROR_OK)
    		{
    			LOG_ERROR("target '%s' init failed", target_get_name(target));
    			return retval;
    		}
    
    		/* Set up default functions if none are provided by target */
    		if (target->type->virt2phys == NULL)
    		{
    			target->type->virt2phys = default_virt2phys;
    		}
    		target->type->virt2phys = default_virt2phys;
    		/* a non-invasive way(in terms of patches) to add some code that
    		 * runs before the type->write/read_memory implementation
    		 */
    		target->type->write_memory_imp = target->type->write_memory;
    		target->type->write_memory = target_write_memory_imp;
    		target->type->read_memory_imp = target->type->read_memory;
    		target->type->read_memory = target_read_memory_imp;
    		target->type->soft_reset_halt_imp = target->type->soft_reset_halt;
    		target->type->soft_reset_halt = target_soft_reset_halt_imp;
    		target->type->run_algorithm_imp = target->type->run_algorithm;
    		target->type->run_algorithm = target_run_algorithm_imp;
    
    		if (target->type->mmu == NULL)
    		{
    			target->type->mmu = default_mmu;
    		}
    		target = target->next;
    	}
    
    	if (all_targets)
    	{
    		if ((retval = target_register_user_commands(cmd_ctx)) != ERROR_OK)
    			return retval;
    		if ((retval = target_register_timer_callback(handle_target, 100, 1, NULL)) != ERROR_OK)
    			return retval;
    	}
    
    	return ERROR_OK;
    }
    
    int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
    {
    	target_event_callback_t **callbacks_p = &target_event_callbacks;
    
    	if (callback == NULL)
    	{
    		return ERROR_INVALID_ARGUMENTS;
    	}
    
    	if (*callbacks_p)
    	{
    		while ((*callbacks_p)->next)
    			callbacks_p = &((*callbacks_p)->next);
    		callbacks_p = &((*callbacks_p)->next);
    	}
    
    	(*callbacks_p) = malloc(sizeof(target_event_callback_t));
    	(*callbacks_p)->callback = callback;
    	(*callbacks_p)->priv = priv;
    	(*callbacks_p)->next = NULL;
    
    	return ERROR_OK;
    }
    
    int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
    {
    	target_timer_callback_t **callbacks_p = &target_timer_callbacks;
    	struct timeval now;
    
    	if (callback == NULL)
    	{
    		return ERROR_INVALID_ARGUMENTS;
    	}
    
    	if (*callbacks_p)
    	{
    		while ((*callbacks_p)->next)
    			callbacks_p = &((*callbacks_p)->next);
    		callbacks_p = &((*callbacks_p)->next);
    	}
    
    	(*callbacks_p) = malloc(sizeof(target_timer_callback_t));
    	(*callbacks_p)->callback = callback;
    	(*callbacks_p)->periodic = periodic;
    	(*callbacks_p)->time_ms = time_ms;
    
    	gettimeofday(&now, NULL);
    	(*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
    	time_ms -= (time_ms % 1000);
    	(*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
    	if ((*callbacks_p)->when.tv_usec > 1000000)
    	{
    		(*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
    		(*callbacks_p)->when.tv_sec += 1;
    	}
    
    	(*callbacks_p)->priv = priv;
    	(*callbacks_p)->next = NULL;
    
    	return ERROR_OK;
    }
    
    int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
    {
    	target_event_callback_t **p = &target_event_callbacks;
    	target_event_callback_t *c = target_event_callbacks;
    
    	if (callback == NULL)
    	{
    		return ERROR_INVALID_ARGUMENTS;
    	}
    
    	while (c)
    	{
    		target_event_callback_t *next = c->next;
    		if ((c->callback == callback) && (c->priv == priv))
    		{
    			*p = next;
    			free(c);
    			return ERROR_OK;
    		}
    		else
    			p = &(c->next);
    		c = next;
    	}
    
    	return ERROR_OK;
    }
    
    int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
    {
    	target_timer_callback_t **p = &target_timer_callbacks;
    	target_timer_callback_t *c = target_timer_callbacks;
    
    	if (callback == NULL)
    	{
    		return ERROR_INVALID_ARGUMENTS;
    	}
    
    	while (c)
    	{
    		target_timer_callback_t *next = c->next;
    		if ((c->callback == callback) && (c->priv == priv))
    		{
    			*p = next;
    			free(c);
    			return ERROR_OK;
    		}
    		else
    			p = &(c->next);
    		c = next;
    	}
    
    	return ERROR_OK;
    }
    
    int target_call_event_callbacks(target_t *target, enum target_event event)
    {
    	target_event_callback_t *callback = target_event_callbacks;
    	target_event_callback_t *next_callback;
    
    	if (event == TARGET_EVENT_HALTED)
    	{
    		/* execute early halted first */
    		target_call_event_callbacks(target, TARGET_EVENT_EARLY_HALTED);
    	}
    
    	LOG_DEBUG("target event %i (%s)",
    			  event,
    			  Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
    
    	target_handle_event(target, event);
    
    	while (callback)
    	{
    		next_callback = callback->next;
    		callback->callback(target, event, callback->priv);
    		callback = next_callback;
    	}
    
    	return ERROR_OK;
    }
    
    static int target_timer_callback_periodic_restart(
    		target_timer_callback_t *cb, struct timeval *now)
    {
    	int time_ms = cb->time_ms;
    	cb->when.tv_usec = now->tv_usec + (time_ms % 1000) * 1000;
    	time_ms -= (time_ms % 1000);
    	cb->when.tv_sec = now->tv_sec + time_ms / 1000;
    	if (cb->when.tv_usec > 1000000)
    	{
    		cb->when.tv_usec = cb->when.tv_usec - 1000000;
    		cb->when.tv_sec += 1;
    	}
    	return ERROR_OK;
    }
    
    static int target_call_timer_callback(target_timer_callback_t *cb,
    		struct timeval *now)
    {
    	cb->callback(cb->priv);
    
    	if (cb->periodic)
    		return target_timer_callback_periodic_restart(cb, now);
    
    	return target_unregister_timer_callback(cb->callback, cb->priv);
    }
    
    static int target_call_timer_callbacks_check_time(int checktime)
    {
    	keep_alive();
    
    	struct timeval now;
    	gettimeofday(&now, NULL);
    
    	target_timer_callback_t *callback = target_timer_callbacks;
    	while (callback)
    	{
    		// cleaning up may unregister and free this callback
    		target_timer_callback_t *next_callback = callback->next;
    
    		bool call_it = callback->callback &&
    			((!checktime && callback->periodic) ||
    			  now.tv_sec > callback->when.tv_sec ||
    			 (now.tv_sec == callback->when.tv_sec &&
    			  now.tv_usec >= callback->when.tv_usec));
    
    		if (call_it)
    		{
    			int retval = target_call_timer_callback(callback, &now);
    			if (retval != ERROR_OK)
    				return retval;
    		}
    
    		callback = next_callback;
    	}
    
    	return ERROR_OK;
    }
    
    int target_call_timer_callbacks(void)
    {
    	return target_call_timer_callbacks_check_time(1);
    }
    
    /* invoke periodic callbacks immediately */
    int target_call_timer_callbacks_now(void)
    {
    	return target_call_timer_callbacks_check_time(0);
    }
    
    int target_alloc_working_area(struct target_s *target, uint32_t size, working_area_t **area)
    {
    	working_area_t *c = target->working_areas;
    	working_area_t *new_wa = NULL;
    
    	/* Reevaluate working area address based on MMU state*/
    	if (target->working_areas == NULL)
    	{
    		int retval;
    		int enabled;
    		retval = target->type->mmu(target, &enabled);
    		if (retval != ERROR_OK)
    		{
    			return retval;
    		}
    		if (enabled)
    		{
    			target->working_area = target->working_area_virt;
    		}
    		else
    		{
    			target->working_area = target->working_area_phys;
    		}
    	}
    
    	/* only allocate multiples of 4 byte */
    	if (size % 4)
    	{
    		LOG_ERROR("BUG: code tried to allocate unaligned number of bytes (0x%08x), padding", ((unsigned)(size)));
    		size = (size + 3) & (~3);
    	}
    
    	/* see if there's already a matching working area */
    	while (c)
    	{
    		if ((c->free) && (c->size == size))
    		{
    			new_wa = c;
    			break;
    		}
    		c = c->next;
    	}
    
    	/* if not, allocate a new one */
    	if (!new_wa)
    	{
    		working_area_t **p = &target->working_areas;
    		uint32_t first_free = target->working_area;
    		uint32_t free_size = target->working_area_size;
    
    		LOG_DEBUG("allocating new working area");
    
    		c = target->working_areas;
    		while (c)
    		{
    			first_free += c->size;
    			free_size -= c->size;
    			p = &c->next;
    			c = c->next;
    		}
    
    		if (free_size < size)
    		{
    			LOG_WARNING("not enough working area available(requested %u, free %u)",
    				    (unsigned)(size), (unsigned)(free_size));
    			return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
    		}
    
    		new_wa = malloc(sizeof(working_area_t));
    		new_wa->next = NULL;
    		new_wa->size = size;
    		new_wa->address = first_free;
    
    		if (target->backup_working_area)
    		{
    			int retval;
    			new_wa->backup = malloc(new_wa->size);
    			if ((retval = target_read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup)) != ERROR_OK)
    			{
    				free(new_wa->backup);
    				free(new_wa);
    				return retval;
    			}
    		}
    		else
    		{
    			new_wa->backup = NULL;
    		}
    
    		/* put new entry in list */
    		*p = new_wa;
    	}
    
    	/* mark as used, and return the new (reused) area */
    	new_wa->free = 0;
    	*area = new_wa;
    
    	/* user pointer */
    	new_wa->user = area;
    
    	return ERROR_OK;
    }
    
    int target_free_working_area_restore(struct target_s *target, working_area_t *area, int restore)
    {
    	if (area->free)
    		return ERROR_OK;
    
    	if (restore && target->backup_working_area)
    	{
    		int retval;
    		if ((retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup)) != ERROR_OK)
    			return retval;
    	}
    
    	area->free = 1;
    
    	/* mark user pointer invalid */
    	*area->user = NULL;
    	area->user = NULL;
    
    	return ERROR_OK;
    }
    
    int target_free_working_area(struct target_s *target, working_area_t *area)
    {
    	return target_free_working_area_restore(target, area, 1);
    }
    
    /* free resources and restore memory, if restoring memory fails,
     * free up resources anyway
     */
    void target_free_all_working_areas_restore(struct target_s *target, int restore)
    {
    	working_area_t *c = target->working_areas;
    
    	while (c)
    	{
    		working_area_t *next = c->next;
    		target_free_working_area_restore(target, c, restore);
    
    		if (c->backup)
    			free(c->backup);
    
    		free(c);
    
    		c = next;
    	}
    
    	target->working_areas = NULL;
    }
    
    void target_free_all_working_areas(struct target_s *target)
    {
    	target_free_all_working_areas_restore(target, 1);
    }
    
    int target_register_commands(struct command_context_s *cmd_ctx)
    {
    
    	register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, "change the current command line target (one parameter) or lists targets (with no parameter)");
    
    
    
    
    	register_jim(cmd_ctx, "target", jim_target, "configure target");
    
    	return ERROR_OK;
    }
    
    int target_arch_state(struct target_s *target)
    {
    	int retval;
    	if (target == NULL)
    	{
    		LOG_USER("No target has been configured");
    		return ERROR_OK;
    	}
    
    	LOG_USER("target state: %s", target_state_name( target ));
    
    	if (target->state != TARGET_HALTED)
    		return ERROR_OK;
    
    	retval = target->type->arch_state(target);
    	return retval;
    }
    
    /* Single aligned words are guaranteed to use 16 or 32 bit access
     * mode respectively, otherwise data is handled as quickly as
     * possible
     */
    int target_write_buffer(struct target_s *target, uint32_t address, uint32_t size, uint8_t *buffer)
    {
    	int retval;
    	LOG_DEBUG("writing buffer of %i byte at 0x%8.8x",
    		  (int)size, (unsigned)address);
    
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    
    	if (size == 0) {
    		return ERROR_OK;
    	}
    
    	if ((address + size - 1) < address)
    	{
    		/* GDB can request this when e.g. PC is 0xfffffffc*/
    		LOG_ERROR("address + size wrapped(0x%08x, 0x%08x)",
    				  (unsigned)address,
    				  (unsigned)size);
    		return ERROR_FAIL;
    	}
    
    	if (((address % 2) == 0) && (size == 2))
    	{
    		return target_write_memory(target, address, 2, 1, buffer);
    	}
    
    	/* handle unaligned head bytes */
    	if (address % 4)
    	{
    		uint32_t unaligned = 4 - (address % 4);
    
    		if (unaligned > size)
    			unaligned = size;
    
    		if ((retval = target_write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
    			return retval;
    
    		buffer += unaligned;
    		address += unaligned;
    		size -= unaligned;
    	}
    
    	/* handle aligned words */
    	if (size >= 4)
    	{
    		int aligned = size - (size % 4);
    
    		/* use bulk writes above a certain limit. This may have to be changed */
    		if (aligned > 128)
    		{
    			if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
    				return retval;
    		}
    		else
    		{
    			if ((retval = target_write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
    				return retval;
    		}
    
    		buffer += aligned;
    		address += aligned;
    		size -= aligned;
    	}
    
    	/* handle tail writes of less than 4 bytes */
    	if (size > 0)
    	{
    		if ((retval = target_write_memory(target, address, 1, size, buffer)) != ERROR_OK)
    			return retval;
    	}
    
    	return ERROR_OK;
    }
    
    /* Single aligned words are guaranteed to use 16 or 32 bit access
     * mode respectively, otherwise data is handled as quickly as
     * possible
     */
    int target_read_buffer(struct target_s *target, uint32_t address, uint32_t size, uint8_t *buffer)
    {
    	int retval;
    	LOG_DEBUG("reading buffer of %i byte at 0x%8.8x",
    			  (int)size, (unsigned)address);
    
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    
    	if (size == 0) {
    		return ERROR_OK;
    	}
    
    	if ((address + size - 1) < address)
    	{
    		/* GDB can request this when e.g. PC is 0xfffffffc*/
    		LOG_ERROR("address + size wrapped(0x%08" PRIx32 ", 0x%08" PRIx32 ")",
    				  address,
    				  size);
    		return ERROR_FAIL;
    	}
    
    	if (((address % 2) == 0) && (size == 2))
    	{
    		return target_read_memory(target, address, 2, 1, buffer);
    	}
    
    	/* handle unaligned head bytes */
    	if (address % 4)
    	{
    		uint32_t unaligned = 4 - (address % 4);
    
    		if (unaligned > size)
    			unaligned = size;
    
    		if ((retval = target_read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
    			return retval;
    
    		buffer += unaligned;
    		address += unaligned;
    		size -= unaligned;
    	}
    
    	/* handle aligned words */
    	if (size >= 4)
    	{
    		int aligned = size - (size % 4);
    
    		if ((retval = target_read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
    			return retval;
    
    		buffer += aligned;
    		address += aligned;
    		size -= aligned;
    	}
    
    	/* handle tail writes of less than 4 bytes */
    	if (size > 0)
    	{
    		if ((retval = target_read_memory(target, address, 1, size, buffer)) != ERROR_OK)
    			return retval;
    	}
    
    	return ERROR_OK;
    }
    
    int target_checksum_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t* crc)
    {
    	uint8_t *buffer;
    	int retval;
    	uint32_t i;
    	uint32_t checksum = 0;
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    
    	if ((retval = target->type->checksum_memory(target, address,
    		size, &checksum)) != ERROR_OK)
    	{
    		buffer = malloc(size);
    		if (buffer == NULL)
    		{
    			LOG_ERROR("error allocating buffer for section (%d bytes)", (int)size);
    			return ERROR_INVALID_ARGUMENTS;
    		}
    		retval = target_read_buffer(target, address, size, buffer);
    		if (retval != ERROR_OK)
    		{
    			free(buffer);
    			return retval;
    		}
    
    		/* convert to target endianess */
    		for (i = 0; i < (size/sizeof(uint32_t)); i++)
    		{
    			uint32_t target_data;
    			target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
    			target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
    		}
    
    		retval = image_calculate_checksum(buffer, size, &checksum);
    		free(buffer);
    	}
    
    	*crc = checksum;
    
    	return retval;
    }
    
    int target_blank_check_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t* blank)
    {
    	int retval;
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    
    	if (target->type->blank_check_memory == 0)
    		return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
    
    	retval = target->type->blank_check_memory(target, address, size, blank);
    
    	return retval;
    }
    
    int target_read_u32(struct target_s *target, uint32_t address, uint32_t *value)
    {
    	uint8_t value_buf[4];
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    
    	int retval = target_read_memory(target, address, 4, 1, value_buf);
    
    	if (retval == ERROR_OK)
    	{
    		*value = target_buffer_get_u32(target, value_buf);
    		LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
    				  address,
    				  *value);
    	}
    	else
    	{
    		*value = 0x0;
    		LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
    				  address);
    	}
    
    	return retval;
    }
    
    int target_read_u16(struct target_s *target, uint32_t address, uint16_t *value)
    {
    	uint8_t value_buf[2];
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    
    	int retval = target_read_memory(target, address, 2, 1, value_buf);
    
    	if (retval == ERROR_OK)
    	{
    		*value = target_buffer_get_u16(target, value_buf);
    		LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%4.4x",
    				  address,
    				  *value);
    	}
    	else
    	{
    		*value = 0x0;
    		LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
    				  address);
    	}
    
    	return retval;
    }
    
    int target_read_u8(struct target_s *target, uint32_t address, uint8_t *value)
    {
    	int retval = target_read_memory(target, address, 1, 1, value);
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    
    	if (retval == ERROR_OK)
    	{
    		LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
    				  address,
    				  *value);
    	}
    	else
    	{
    		*value = 0x0;
    		LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
    				  address);
    	}
    
    	return retval;
    }
    
    int target_write_u32(struct target_s *target, uint32_t address, uint32_t value)
    {
    	int retval;
    	uint8_t value_buf[4];
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    
    	LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
    			  address,
    			  value);
    
    	target_buffer_set_u32(target, value_buf, value);
    	if ((retval = target_write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
    	{
    		LOG_DEBUG("failed: %i", retval);
    	}
    
    	return retval;
    }
    
    int target_write_u16(struct target_s *target, uint32_t address, uint16_t value)
    {
    	int retval;
    	uint8_t value_buf[2];
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    
    	LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8x",
    			  address,
    			  value);
    
    	target_buffer_set_u16(target, value_buf, value);
    	if ((retval = target_write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
    	{
    		LOG_DEBUG("failed: %i", retval);
    	}
    
    	return retval;
    }
    
    int target_write_u8(struct target_s *target, uint32_t address, uint8_t value)
    {
    	int retval;
    	if (!target_was_examined(target))
    	{
    		LOG_ERROR("Target not examined yet");
    		return ERROR_FAIL;
    	}
    
    	LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
    			  address, value);
    
    	if ((retval = target_write_memory(target, address, 1, 1, &value)) != ERROR_OK)
    	{
    		LOG_DEBUG("failed: %i", retval);
    	}
    
    	return retval;
    }
    
    int target_register_user_commands(struct command_context_s *cmd_ctx)
    {
    	int retval = ERROR_OK;
    
    
    	/* script procedures */
    	register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "profiling samples the CPU PC");
    	register_jim(cmd_ctx, "ocd_mem2array", jim_mem2array, "read memory and return as a TCL array for script processing <ARRAYNAME> <WIDTH = 32/16/8> <ADDRESS> <COUNT>");
    	register_jim(cmd_ctx, "ocd_array2mem", jim_array2mem, "convert a TCL array to memory locations and write the values  <ARRAYNAME> <WIDTH = 32/16/8> <ADDRESS> <COUNT>");
    
    	register_command(cmd_ctx, NULL, "fast_load_image", handle_fast_load_image_command, COMMAND_ANY,
    			"same args as load_image, image stored in memory - mainly for profiling purposes");
    
    	register_command(cmd_ctx, NULL, "fast_load", handle_fast_load_command, COMMAND_ANY,
    			"loads active fast load image to current target - mainly for profiling purposes");
    
    
    	register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "translate a virtual address into a physical address");
    	register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, "display or set a register");
    	register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
    	register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
    	register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
    	register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
    	register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction from current PC or [addr]");
    	register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run | halt | init] - default is run");
    	register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
    
    	register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
    	register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
    	register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
    
    	register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value> [count]");
    	register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value> [count]");
    	register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value> [count]");
    
    	register_command(cmd_ctx,  NULL, "bp",
    			handle_bp_command, COMMAND_EXEC,
    			"list or set breakpoint [<address> <length> [hw]]");
    	register_command(cmd_ctx,  NULL, "rbp",
    			handle_rbp_command, COMMAND_EXEC,
    			"remove breakpoint <address>");
    	register_command(cmd_ctx,  NULL, "wp",
    			handle_wp_command, COMMAND_EXEC,
    			"list or set watchpoint "
    				"[<address> <length> <r/w/a> [value] [mask]]");
    	register_command(cmd_ctx,  NULL, "rwp",
    			handle_rwp_command, COMMAND_EXEC,
    			"remove watchpoint <address>");
    
    	register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex'|'elf'|'s19'] [min_address] [max_length]");
    	register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
    	register_command(cmd_ctx,  NULL, "verify_image", handle_verify_image_command, COMMAND_EXEC, "verify_image <file> [offset] [type]");
    	register_command(cmd_ctx,  NULL, "test_image", handle_test_image_command, COMMAND_EXEC, "test_image <file> [offset] [type]");
    
    	if ((retval = target_request_register_commands(cmd_ctx)) != ERROR_OK)
    		return retval;
    	if ((retval = trace_register_commands(cmd_ctx)) != ERROR_OK)
    		return retval;
    
    	return retval;
    }
    
    static int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	target_t *target = all_targets;
    
    	if (argc == 1)
    	{
    		target = get_target(args[0]);
    		if (target == NULL) {
    			command_print(cmd_ctx,"Target: %s is unknown, try one of:\n", args[0]);
    			goto DumpTargets;
    		}
    		if (!target->tap->enabled) {
    			command_print(cmd_ctx,"Target: TAP %s is disabled, "
    					"can't be the current target\n",
    					target->tap->dotted_name);
    			return ERROR_FAIL;
    		}
    
    		cmd_ctx->current_target = target->target_number;
    		return ERROR_OK;
    	}
    DumpTargets:
    
    	target = all_targets;
    	command_print(cmd_ctx, "    TargetName         Type       Endian TapName            State       ");
    	command_print(cmd_ctx, "--  ------------------ ---------- ------ ------------------ ------------");
    	while (target)
    	{
    		const char *state;
    		char marker = ' ';
    
    		if (target->tap->enabled)
    			state = target_state_name( target );
    		else
    			state = "tap-disabled";
    
    		if (cmd_ctx->current_target == target->target_number)
    			marker = '*';
    
    		/* keep columns lined up to match the headers above */
    		command_print(cmd_ctx, "%2d%c %-18s %-10s %-6s %-18s %s",
    					  target->target_number,
    					  marker,
    					  target->cmd_name,
    					  target_get_name(target),
    					  Jim_Nvp_value2name_simple(nvp_target_endian,
    								target->endianness)->name,
    					  target->tap->dotted_name,
    					  state);
    		target = target->next;
    	}
    
    	return ERROR_OK;
    }
    
    /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
    
    static int powerDropout;
    static int srstAsserted;
    
    static int runPowerRestore;
    static int runPowerDropout;
    static int runSrstAsserted;
    static int runSrstDeasserted;
    
    static int sense_handler(void)
    {
    	static int prevSrstAsserted = 0;
    	static int prevPowerdropout = 0;
    
    	int retval;
    	if ((retval = jtag_power_dropout(&powerDropout)) != ERROR_OK)
    		return retval;
    
    	int powerRestored;
    	powerRestored = prevPowerdropout && !powerDropout;
    	if (powerRestored)
    	{
    		runPowerRestore = 1;
    	}
    
    	long long current = timeval_ms();
    	static long long lastPower = 0;
    	int waitMore = lastPower + 2000 > current;
    	if (powerDropout && !waitMore)
    	{
    		runPowerDropout = 1;
    		lastPower = current;
    	}
    
    	if ((retval = jtag_srst_asserted(&srstAsserted)) != ERROR_OK)
    		return retval;
    
    	int srstDeasserted;
    	srstDeasserted = prevSrstAsserted && !srstAsserted;
    
    	static long long lastSrst = 0;
    	waitMore = lastSrst + 2000 > current;
    	if (srstDeasserted && !waitMore)
    	{
    		runSrstDeasserted = 1;
    		lastSrst = current;
    	}
    
    	if (!prevSrstAsserted && srstAsserted)
    	{
    		runSrstAsserted = 1;
    	}
    
    	prevSrstAsserted = srstAsserted;
    	prevPowerdropout = powerDropout;
    
    	if (srstDeasserted || powerRestored)
    	{
    		/* Other than logging the event we can't do anything here.
    		 * Issuing a reset is a particularly bad idea as we might
    		 * be inside a reset already.
    		 */
    	}
    
    	return ERROR_OK;
    }
    
    /* process target state changes */
    int handle_target(void *priv)
    {
    	int retval = ERROR_OK;
    
    	/* we do not want to recurse here... */
    	static int recursive = 0;
    	if (! recursive)
    	{
    		recursive = 1;
    		sense_handler();
    		/* danger! running these procedures can trigger srst assertions and power dropouts.
    		 * We need to avoid an infinite loop/recursion here and we do that by
    		 * clearing the flags after running these events.
    		 */
    		int did_something = 0;
    		if (runSrstAsserted)
    		{
    			Jim_Eval(interp, "srst_asserted");
    			did_something = 1;
    		}
    		if (runSrstDeasserted)
    		{
    			Jim_Eval(interp, "srst_deasserted");
    			did_something = 1;
    		}
    		if (runPowerDropout)
    		{
    			Jim_Eval(interp, "power_dropout");
    			did_something = 1;
    		}
    		if (runPowerRestore)
    		{
    			Jim_Eval(interp, "power_restore");
    			did_something = 1;
    		}
    
    		if (did_something)
    		{
    			/* clear detect flags */
    			sense_handler();
    		}
    
    		/* clear action flags */
    
    		runSrstAsserted = 0;
    		runSrstDeasserted = 0;
    		runPowerRestore = 0;
    		runPowerDropout = 0;
    
    		recursive = 0;
    	}
    
    	/* Poll targets for state changes unless that's globally disabled.
    	 * Skip targets that are currently disabled.
    	 */
    	for (target_t *target = all_targets;
    			target_continuous_poll && target;
    			target = target->next)
    	{
    		if (!target->tap->enabled)
    			continue;
    
    		/* only poll target if we've got power and srst isn't asserted */
    		if (!powerDropout && !srstAsserted)
    		{
    			/* polling may fail silently until the target has been examined */
    			if ((retval = target_poll(target)) != ERROR_OK)
    				return retval;
    		}
    	}
    
    	return retval;
    }
    
    static int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	target_t *target;
    	reg_t *reg = NULL;
    	int count = 0;
    	char *value;
    
    	LOG_DEBUG("-");
    
    	target = get_current_target(cmd_ctx);
    
    	/* list all available registers for the current target */
    	if (argc == 0)
    	{
    		reg_cache_t *cache = target->reg_cache;
    
    		count = 0;
    		while (cache)
    		{
    			int i;
    
    			for (i = 0, reg = cache->reg_list;
    					i < cache->num_regs;
    					i++, reg++, count++)
    			{
    				/* only print cached values if they are valid */
    				if (reg->valid) {
    					value = buf_to_str(reg->value,
    							reg->size, 16);
    					command_print(cmd_ctx,
    							"(%i) %s (/%" PRIu32 "): 0x%s%s",
    							count, reg->name,
    							reg->size, value,
    							reg->dirty
    								? " (dirty)"
    								: "");
    					free(value);
    				} else {
    					command_print(cmd_ctx, "(%i) %s (/%" PRIu32 ")",
    							  count, reg->name,
    							  reg->size) ;
    				}
    			}
    			cache = cache->next;
    		}
    
    		return ERROR_OK;
    	}
    
    	/* access a single register by its ordinal number */
    	if ((args[0][0] >= '0') && (args[0][0] <= '9'))
    	{
    		unsigned num;
    		int retval = parse_uint(args[0], &num);
    		if (ERROR_OK != retval)
    			return ERROR_COMMAND_SYNTAX_ERROR;
    
    		reg_cache_t *cache = target->reg_cache;
    		count = 0;
    		while (cache)
    		{
    			int i;
    			for (i = 0; i < cache->num_regs; i++)
    			{
    				if (count++ == (int)num)
    				{
    					reg = &cache->reg_list[i];
    					break;
    				}
    			}
    			if (reg)
    				break;
    			cache = cache->next;
    		}
    
    		if (!reg)
    		{
    			command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
    			return ERROR_OK;
    		}
    	} else /* access a single register by its name */
    	{
    		reg = register_get_by_name(target->reg_cache, args[0], 1);
    
    		if (!reg)
    		{
    			command_print(cmd_ctx, "register %s not found in current target", args[0]);
    			return ERROR_OK;
    		}
    	}
    
    	/* display a register */
    	if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
    	{
    		if ((argc == 2) && (strcmp(args[1], "force") == 0))
    			reg->valid = 0;
    
    		if (reg->valid == 0)
    		{
    			reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
    			arch_type->get(reg);
    		}
    		value = buf_to_str(reg->value, reg->size, 16);
    		command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
    		free(value);
    		return ERROR_OK;
    	}
    
    	/* set register value */
    	if (argc == 2)
    	{
    		uint8_t *buf = malloc(CEIL(reg->size, 8));
    		str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
    
    		reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
    		arch_type->set(reg, buf);
    
    		value = buf_to_str(reg->value, reg->size, 16);
    		command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
    		free(value);
    
    		free(buf);
    
    		return ERROR_OK;
    	}
    
    	command_print(cmd_ctx, "usage: reg <#|name> [value]");
    
    	return ERROR_OK;
    }
    
    static int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	int retval = ERROR_OK;
    	target_t *target = get_current_target(cmd_ctx);
    
    	if (argc == 0)
    	{
    		command_print(cmd_ctx, "background polling: %s",
    				target_continuous_poll ?  "on" : "off");
    		command_print(cmd_ctx, "TAP: %s (%s)",
    				target->tap->dotted_name,
    				target->tap->enabled ? "enabled" : "disabled");
    		if (!target->tap->enabled)
    			return ERROR_OK;
    		if ((retval = target_poll(target)) != ERROR_OK)
    			return retval;
    		if ((retval = target_arch_state(target)) != ERROR_OK)
    			return retval;
    
    	}
    	else if (argc == 1)
    	{
    		if (strcmp(args[0], "on") == 0)
    		{
    			target_continuous_poll = 1;
    		}
    		else if (strcmp(args[0], "off") == 0)
    		{
    			target_continuous_poll = 0;
    		}
    		else
    		{
    			command_print(cmd_ctx, "arg is \"on\" or \"off\"");
    		}
    	} else
    	{
    		return ERROR_COMMAND_SYNTAX_ERROR;
    	}
    
    	return retval;
    }
    
    static int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	if (argc > 1)
    		return ERROR_COMMAND_SYNTAX_ERROR;
    
    	unsigned ms = 5000;
    	if (1 == argc)
    	{
    		int retval = parse_uint(args[0], &ms);
    		if (ERROR_OK != retval)
    		{
    			command_print(cmd_ctx, "usage: %s [seconds]", cmd);
    			return ERROR_COMMAND_SYNTAX_ERROR;
    		}
    		// convert seconds (given) to milliseconds (needed)
    		ms *= 1000;
    	}
    
    	target_t *target = get_current_target(cmd_ctx);
    	return target_wait_state(target, TARGET_HALTED, ms);
    }
    
    /* wait for target state to change. The trick here is to have a low
     * latency for short waits and not to suck up all the CPU time
     * on longer waits.
     *
     * After 500ms, keep_alive() is invoked
     */
    int target_wait_state(target_t *target, enum target_state state, int ms)
    {
    	int retval;
    	long long then = 0, cur;
    	int once = 1;
    
    	for (;;)
    	{
    		if ((retval = target_poll(target)) != ERROR_OK)
    			return retval;
    		if (target->state == state)
    		{
    			break;
    		}
    		cur = timeval_ms();
    		if (once)
    		{
    			once = 0;
    			then = timeval_ms();
    			LOG_DEBUG("waiting for target %s...",
    				Jim_Nvp_value2name_simple(nvp_target_state,state)->name);
    		}
    
    		if (cur-then > 500)
    		{
    			keep_alive();
    		}
    
    		if ((cur-then) > ms)
    		{
    			LOG_ERROR("timed out while waiting for target %s",
    				Jim_Nvp_value2name_simple(nvp_target_state,state)->name);
    			return ERROR_FAIL;
    		}
    	}
    
    	return ERROR_OK;
    }
    
    static int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	LOG_DEBUG("-");
    
    	target_t *target = get_current_target(cmd_ctx);
    	int retval = target_halt(target);
    	if (ERROR_OK != retval)
    		return retval;
    
    	if (argc == 1)
    	{
    		unsigned wait;
    		retval = parse_uint(args[0], &wait);
    		if (ERROR_OK != retval)
    			return ERROR_COMMAND_SYNTAX_ERROR;
    		if (!wait)
    			return ERROR_OK;
    	}
    
    	return handle_wait_halt_command(cmd_ctx, cmd, args, argc);
    }
    
    static int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	target_t *target = get_current_target(cmd_ctx);
    
    	LOG_USER("requesting target halt and executing a soft reset");
    
    	target->type->soft_reset_halt(target);
    
    	return ERROR_OK;
    }
    
    static int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	if (argc > 1)
    		return ERROR_COMMAND_SYNTAX_ERROR;
    
    	enum target_reset_mode reset_mode = RESET_RUN;
    	if (argc == 1)
    	{
    		const Jim_Nvp *n;
    		n = Jim_Nvp_name2value_simple(nvp_reset_modes, args[0]);
    		if ((n->name == NULL) || (n->value == RESET_UNKNOWN)) {
    			return ERROR_COMMAND_SYNTAX_ERROR;
    		}
    		reset_mode = n->value;
    	}
    
    	/* reset *all* targets */
    	return target_process_reset(cmd_ctx, reset_mode);
    }
    
    
    static int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	int current = 1;
    	if (argc > 1)
    		return ERROR_COMMAND_SYNTAX_ERROR;
    
    	target_t *target = get_current_target(cmd_ctx);
    	target_handle_event(target, TARGET_EVENT_OLD_pre_resume);
    
    	/* with no args, resume from current pc, addr = 0,
    	 * with one arguments, addr = args[0],
    	 * handle breakpoints, not debugging */
    	uint32_t addr = 0;
    	if (argc == 1)
    	{
    		int retval = parse_u32(args[0], &addr);
    		if (ERROR_OK != retval)
    			return retval;
    		current = 0;
    	}
    
    	return target_resume(target, current, addr, 1, 0);
    }
    
    static int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	if (argc > 1)
    		return ERROR_COMMAND_SYNTAX_ERROR;
    
    	LOG_DEBUG("-");
    
    	/* with no args, step from current pc, addr = 0,
    	 * with one argument addr = args[0],
    	 * handle breakpoints, debugging */
    	uint32_t addr = 0;
    	int current_pc = 1;
    	if (argc == 1)
    	{
    		int retval = parse_u32(args[0], &addr);
    		if (ERROR_OK != retval)
    			return retval;
    		current_pc = 0;
    	}
    
    	target_t *target = get_current_target(cmd_ctx);
    
    	return target->type->step(target, current_pc, addr, 1);
    }
    
    static void handle_md_output(struct command_context_s *cmd_ctx,
    		struct target_s *target, uint32_t address, unsigned size,
    		unsigned count, const uint8_t *buffer)
    {
    	const unsigned line_bytecnt = 32;
    	unsigned line_modulo = line_bytecnt / size;
    
    	char output[line_bytecnt * 4 + 1];
    	unsigned output_len = 0;
    
    	const char *value_fmt;
    	switch (size) {
    	case 4: value_fmt = "%8.8x "; break;
    	case 2: value_fmt = "%4.2x "; break;
    	case 1: value_fmt = "%2.2x "; break;
    	default:
    		LOG_ERROR("invalid memory read size: %u", size);
    		exit(-1);
    	}
    
    	for (unsigned i = 0; i < count; i++)
    	{
    		if (i % line_modulo == 0)
    		{
    			output_len += snprintf(output + output_len,
    					sizeof(output) - output_len,
    					"0x%8.8x: ",
    					(unsigned)(address + (i*size)));
    		}
    
    		uint32_t value = 0;
    		const uint8_t *value_ptr = buffer + i * size;
    		switch (size) {
    		case 4: value = target_buffer_get_u32(target, value_ptr); break;
    		case 2: value = target_buffer_get_u16(target, value_ptr); break;
    		case 1: value = *value_ptr;
    		}
    		output_len += snprintf(output + output_len,
    				sizeof(output) - output_len,
    				value_fmt, value);
    
    		if ((i % line_modulo == line_modulo - 1) || (i == count - 1))
    		{
    			command_print(cmd_ctx, "%s", output);
    			output_len = 0;
    		}
    	}
    }
    
    static int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	if (argc < 1)
    		return ERROR_COMMAND_SYNTAX_ERROR;
    
    	unsigned size = 0;
    	switch (cmd[2]) {
    	case 'w': size = 4; break;
    	case 'h': size = 2; break;
    	case 'b': size = 1; break;
    	default: return ERROR_COMMAND_SYNTAX_ERROR;
    	}
    
    	uint32_t address;
    	int retval = parse_u32(args[0], &address);
    	if (ERROR_OK != retval)
    		return retval;
    
    	unsigned count = 1;
    	if (argc == 2)
    	{
    		retval = parse_uint(args[1], &count);
    		if (ERROR_OK != retval)
    			return retval;
    	}
    
    	uint8_t *buffer = calloc(count, size);
    
    	target_t *target = get_current_target(cmd_ctx);
    	retval = target_read_memory(target,
    				address, size, count, buffer);
    	if (ERROR_OK == retval)
    		handle_md_output(cmd_ctx, target, address, size, count, buffer);
    
    	free(buffer);
    
    	return retval;
    }
    
    static int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	 if ((argc < 2) || (argc > 3))
    		return ERROR_COMMAND_SYNTAX_ERROR;
    
    	uint32_t address;
    	int retval = parse_u32(args[0], &address);
    	if (ERROR_OK != retval)
    		return retval;
    
    	uint32_t value;
    	retval = parse_u32(args[1], &value);
    	if (ERROR_OK != retval)
    		return retval;
    
    	unsigned count = 1;
    	if (argc == 3)
    	{
    		retval = parse_uint(args[2], &count);
    		if (ERROR_OK != retval)
    			return retval;
    	}
    
    	target_t *target = get_current_target(cmd_ctx);
    	unsigned wordsize;
    	uint8_t value_buf[4];
    	switch (cmd[2])
    	{
    		case 'w':
    			wordsize = 4;
    			target_buffer_set_u32(target, value_buf, value);
    			break;
    		case 'h':
    			wordsize = 2;
    			target_buffer_set_u16(target, value_buf, value);
    			break;
    		case 'b':
    			wordsize = 1;
    			value_buf[0] = value;
    			break;
    		default:
    			return ERROR_COMMAND_SYNTAX_ERROR;
    	}
    	for (unsigned i = 0; i < count; i++)
    	{
    		retval = target_write_memory(target,
    				address + i * wordsize, wordsize, 1, value_buf);
    		if (ERROR_OK != retval)
    			return retval;
    		keep_alive();
    	}
    
    	return ERROR_OK;
    
    }
    
    static int parse_load_image_command_args(char **args, int argc,
    		image_t *image, uint32_t *min_address, uint32_t *max_address)
    {
    	if (argc < 1 || argc > 5)
    		return ERROR_COMMAND_SYNTAX_ERROR;
    
    	/* a base address isn't always necessary,
    	 * default to 0x0 (i.e. don't relocate) */
    	if (argc >= 2)
    	{
    		uint32_t addr;
    		int retval = parse_u32(args[1], &addr);
    		if (ERROR_OK != retval)
    			return ERROR_COMMAND_SYNTAX_ERROR;
    		image->base_address = addr;
    		image->base_address_set = 1;
    	}
    	else
    		image->base_address_set = 0;
    
    	image->start_address_set = 0;
    
    	if (argc >= 4)
    	{
    		int retval = parse_u32(args[3], min_address);
    		if (ERROR_OK != retval)
    			return ERROR_COMMAND_SYNTAX_ERROR;
    	}
    	if (argc == 5)
    	{
    		int retval = parse_u32(args[4], max_address);
    		if (ERROR_OK != retval)
    			return ERROR_COMMAND_SYNTAX_ERROR;
    		// use size (given) to find max (required)
    		*max_address += *min_address;
    	}
    
    	if (*min_address > *max_address)
    		return ERROR_COMMAND_SYNTAX_ERROR;
    
    	return ERROR_OK;
    }
    
    static int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	uint8_t *buffer;
    	uint32_t buf_cnt;
    	uint32_t image_size;
    	uint32_t min_address = 0;
    	uint32_t max_address = 0xffffffff;
    	int i;
    	int retvaltemp;
    
    	image_t image;
    
    	duration_t duration;
    	char *duration_text;
    
    	int retval = parse_load_image_command_args(args, argc,
    			&image, &min_address, &max_address);
    	if (ERROR_OK != retval)
    		return retval;
    
    	target_t *target = get_current_target(cmd_ctx);
    	duration_start_measure(&duration);
    
    	if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
    	{
    		return ERROR_OK;
    	}
    
    	image_size = 0x0;
    	retval = ERROR_OK;
    	for (i = 0; i < image.num_sections; i++)
    	{
    		buffer = malloc(image.sections[i].size);
    		if (buffer == NULL)
    		{
    			command_print(cmd_ctx,
    						  "error allocating buffer for section (%d bytes)",
    						  (int)(image.sections[i].size));
    			break;
    		}
    
    		if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
    		{
    			free(buffer);
    			break;
    		}
    
    		uint32_t offset = 0;
    		uint32_t length = buf_cnt;
    
    		/* DANGER!!! beware of unsigned comparision here!!! */
    
    		if ((image.sections[i].base_address + buf_cnt >= min_address)&&
    				(image.sections[i].base_address < max_address))
    		{
    			if (image.sections[i].base_address < min_address)
    			{
    				/* clip addresses below */
    				offset += min_address-image.sections[i].base_address;
    				length -= offset;
    			}
    
    			if (image.sections[i].base_address + buf_cnt > max_address)
    			{
    				length -= (image.sections[i].base_address + buf_cnt)-max_address;
    			}
    
    			if ((retval = target_write_buffer(target, image.sections[i].base_address + offset, length, buffer + offset)) != ERROR_OK)
    			{
    				free(buffer);
    				break;
    			}
    			image_size += length;
    			command_print(cmd_ctx, "%u byte written at address 0x%8.8" PRIx32 "",
    						  (unsigned int)length,
    						  image.sections[i].base_address + offset);
    		}
    
    		free(buffer);
    	}
    
    	if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
    	{
    		image_close(&image);
    		return retvaltemp;
    	}
    
    	if (retval == ERROR_OK)
    	{
    		command_print(cmd_ctx, "downloaded %u byte in %s",
    					  (unsigned int)image_size,
    					  duration_text);
    	}
    	free(duration_text);
    
    	image_close(&image);
    
    	return retval;
    
    }
    
    static int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	fileio_t fileio;
    
    	uint8_t buffer[560];
    	int retvaltemp;
    
    	duration_t duration;
    	char *duration_text;
    
    	target_t *target = get_current_target(cmd_ctx);
    
    	if (argc != 3)
    	{
    		command_print(cmd_ctx, "usage: dump_image <filename> <address> <size>");
    		return ERROR_OK;
    	}
    
    	uint32_t address;
    	int retval = parse_u32(args[1], &address);
    	if (ERROR_OK != retval)
    		return retval;
    
    	uint32_t size;
    	retval = parse_u32(args[2], &size);
    	if (ERROR_OK != retval)
    		return retval;
    
    	if (fileio_open(&fileio, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
    	{
    		return ERROR_OK;
    	}
    
    	duration_start_measure(&duration);
    
    	while (size > 0)
    	{
    		uint32_t size_written;
    		uint32_t this_run_size = (size > 560) ? 560 : size;
    
    		retval = target_read_buffer(target, address, this_run_size, buffer);
    		if (retval != ERROR_OK)
    		{
    			break;
    		}
    
    		retval = fileio_write(&fileio, this_run_size, buffer, &size_written);
    		if (retval != ERROR_OK)
    		{
    			break;
    		}
    
    		size -= this_run_size;
    		address += this_run_size;
    	}
    
    	if ((retvaltemp = fileio_close(&fileio)) != ERROR_OK)
    		return retvaltemp;
    
    	if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
    		return retvaltemp;
    
    	if (retval == ERROR_OK)
    	{
    		command_print(cmd_ctx, "dumped %lld byte in %s",
    				fileio.size, duration_text);
    		free(duration_text);
    	}
    
    	return retval;
    }
    
    static int handle_verify_image_command_internal(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, int verify)
    {
    	uint8_t *buffer;
    	uint32_t buf_cnt;
    	uint32_t image_size;
    	int i;
    	int retval, retvaltemp;
    	uint32_t checksum = 0;
    	uint32_t mem_checksum = 0;
    
    	image_t image;
    
    	duration_t duration;
    	char *duration_text;
    
    	target_t *target = get_current_target(cmd_ctx);
    
    	if (argc < 1)
    	{
    		return ERROR_COMMAND_SYNTAX_ERROR;
    	}
    
    	if (!target)
    	{
    		LOG_ERROR("no target selected");
    		return ERROR_FAIL;
    	}
    
    	duration_start_measure(&duration);
    
    	if (argc >= 2)
    	{
    		uint32_t addr;
    		retval = parse_u32(args[1], &addr);
    		if (ERROR_OK != retval)
    			return ERROR_COMMAND_SYNTAX_ERROR;
    		image.base_address = addr;
    		image.base_address_set = 1;
    	}
    	else
    	{
    		image.base_address_set = 0;
    		image.base_address = 0x0;
    	}
    
    	image.start_address_set = 0;
    
    	if ((retval = image_open(&image, args[0], (argc == 3) ? args[2] : NULL)) != ERROR_OK)
    	{
    		return retval;
    	}
    
    	image_size = 0x0;
    	retval = ERROR_OK;
    	for (i = 0; i < image.num_sections; i++)
    	{
    		buffer = malloc(image.sections[i].size);
    		if (buffer == NULL)
    		{
    			command_print(cmd_ctx,
    						  "error allocating buffer for section (%d bytes)",
    						  (int)(image.sections[i].size));
    			break;
    		}
    		if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
    		{
    			free(buffer);
    			break;
    		}
    
    		if (verify)
    		{
    			/* calculate checksum of image */
    			image_calculate_checksum(buffer, buf_cnt, &checksum);
    
    			retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
    			if (retval != ERROR_OK)
    			{
    				free(buffer);
    				break;
    			}
    
    			if (checksum != mem_checksum)
    			{
    				/* failed crc checksum, fall back to a binary compare */
    				uint8_t *data;
    
    				command_print(cmd_ctx, "checksum mismatch - attempting binary compare");
    
    				data = (uint8_t*)malloc(buf_cnt);
    
    				/* Can we use 32bit word accesses? */
    				int size = 1;
    				int count = buf_cnt;
    				if ((count % 4) == 0)
    				{
    					size *= 4;
    					count /= 4;
    				}
    				retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
    				if (retval == ERROR_OK)
    				{
    					uint32_t t;
    					for (t = 0; t < buf_cnt; t++)
    					{
    						if (data[t] != buffer[t])
    						{
    							command_print(cmd_ctx,
    										  "Verify operation failed address 0x%08x. Was 0x%02x instead of 0x%02x\n",
    										  (unsigned)(t + image.sections[i].base_address),
    										  data[t],
    										  buffer[t]);
    							free(data);
    							free(buffer);
    							retval = ERROR_FAIL;
    							goto done;
    						}
    						if ((t%16384) == 0)
    						{
    							keep_alive();
    						}
    					}
    				}
    
    				free(data);
    			}
    		} else
    		{
    			command_print(cmd_ctx, "address 0x%08" PRIx32 " length 0x%08" PRIx32 "",
    						  image.sections[i].base_address,
    						  buf_cnt);
    		}
    
    		free(buffer);
    		image_size += buf_cnt;
    	}
    done:
    
    	if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
    	{
    		image_close(&image);
    		return retvaltemp;
    	}
    
    	if (retval == ERROR_OK)
    	{
    		command_print(cmd_ctx, "verified %u bytes in %s",
    					  (unsigned int)image_size,
    					  duration_text);
    	}
    	free(duration_text);
    
    	image_close(&image);
    
    	return retval;
    }
    
    static int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	return handle_verify_image_command_internal(cmd_ctx, cmd, args, argc, 1);
    }
    
    static int handle_test_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	return handle_verify_image_command_internal(cmd_ctx, cmd, args, argc, 0);
    }
    
    static int handle_bp_command_list(struct command_context_s *cmd_ctx)
    {
    	target_t *target = get_current_target(cmd_ctx);
    	breakpoint_t *breakpoint = target->breakpoints;
    	while (breakpoint)
    	{
    		if (breakpoint->type == BKPT_SOFT)
    		{
    			char* buf = buf_to_str(breakpoint->orig_instr,
    					breakpoint->length, 16);
    			command_print(cmd_ctx, "0x%8.8" PRIx32 ", 0x%x, %i, 0x%s",
    					breakpoint->address,
    					breakpoint->length,
    					breakpoint->set, buf);
    			free(buf);
    		}
    		else
    		{
    			command_print(cmd_ctx, "0x%8.8" PRIx32 ", 0x%x, %i",
    						  breakpoint->address,
    						  breakpoint->length, breakpoint->set);
    		}
    
    		breakpoint = breakpoint->next;
    	}
    	return ERROR_OK;
    }
    
    static int handle_bp_command_set(struct command_context_s *cmd_ctx,
    		uint32_t addr, uint32_t length, int hw)
    {
    	target_t *target = get_current_target(cmd_ctx);
    	int retval = breakpoint_add(target, addr, length, hw);
    	if (ERROR_OK == retval)
    		command_print(cmd_ctx, "breakpoint set at 0x%8.8" PRIx32 "", addr);
    	else
    		LOG_ERROR("Failure setting breakpoint");
    	return retval;
    }
    
    static int handle_bp_command(struct command_context_s *cmd_ctx,
    		char *cmd, char **args, int argc)
    {
    	if (argc == 0)
    		return handle_bp_command_list(cmd_ctx);
    
    	if (argc < 2 || argc > 3)
    	{
    		command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
    		return ERROR_COMMAND_SYNTAX_ERROR;
    	}
    
    	uint32_t addr;
    	int retval = parse_u32(args[0], &addr);
    	if (ERROR_OK != retval)
    		return retval;
    
    	uint32_t length;
    	retval = parse_u32(args[1], &length);
    	if (ERROR_OK != retval)
    		return retval;
    
    	int hw = BKPT_SOFT;
    	if (argc == 3)
    	{
    		if (strcmp(args[2], "hw") == 0)
    			hw = BKPT_HARD;
    		else
    			return ERROR_COMMAND_SYNTAX_ERROR;
    	}
    
    	return handle_bp_command_set(cmd_ctx, addr, length, hw);
    }
    
    static int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	if (argc != 1)
    		return ERROR_COMMAND_SYNTAX_ERROR;
    
    	uint32_t addr;
    	int retval = parse_u32(args[0], &addr);
    	if (ERROR_OK != retval)
    		return retval;
    
    	target_t *target = get_current_target(cmd_ctx);
    	breakpoint_remove(target, addr);
    
    	return ERROR_OK;
    }
    
    static int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	target_t *target = get_current_target(cmd_ctx);
    
    	if (argc == 0)
    	{
    		watchpoint_t *watchpoint = target->watchpoints;
    
    		while (watchpoint)
    		{
    			command_print(cmd_ctx,
    						  "address: 0x%8.8" PRIx32 ", len: 0x%8.8x, r/w/a: %i, value: 0x%8.8" PRIx32 ", mask: 0x%8.8" PRIx32 "",
    						  watchpoint->address,
    						  watchpoint->length,
    						  (int)(watchpoint->rw),
    						  watchpoint->value,
    						  watchpoint->mask);
    			watchpoint = watchpoint->next;
    		}
    		return ERROR_OK;
    	}
    
    	enum watchpoint_rw type = WPT_ACCESS;
    	uint32_t addr = 0;
    	uint32_t length = 0;
    	uint32_t data_value = 0x0;
    	uint32_t data_mask = 0xffffffff;
    	int retval;
    
    	switch (argc)
    	{
    	case 5:
    		retval = parse_u32(args[4], &data_mask);
    		if (ERROR_OK != retval)
    			return retval;
    		// fall through
    	case 4:
    		retval = parse_u32(args[3], &data_value);
    		if (ERROR_OK != retval)
    			return retval;
    		// fall through
    	case 3:
    		switch (args[2][0])
    		{
    		case 'r':
    			type = WPT_READ;
    			break;
    		case 'w':
    			type = WPT_WRITE;
    			break;
    		case 'a':
    			type = WPT_ACCESS;
    			break;
    		default:
    			LOG_ERROR("invalid watchpoint mode ('%c')", args[2][0]);
    			return ERROR_COMMAND_SYNTAX_ERROR;
    		}
    		// fall through
    	case 2:
    		retval = parse_u32(args[1], &length);
    		if (ERROR_OK != retval)
    			return retval;
    		retval = parse_u32(args[0], &addr);
    		if (ERROR_OK != retval)
    			return retval;
    		break;
    
    	default:
    		command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
    		return ERROR_COMMAND_SYNTAX_ERROR;
    	}
    
    	retval = watchpoint_add(target, addr, length, type,
    			data_value, data_mask);
    	if (ERROR_OK != retval)
    		LOG_ERROR("Failure setting watchpoints");
    
    	return retval;
    }
    
    static int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	if (argc != 1)
    		return ERROR_COMMAND_SYNTAX_ERROR;
    
    	uint32_t addr;
    	int retval = parse_u32(args[0], &addr);
    	if (ERROR_OK != retval)
    		return retval;
    
    	target_t *target = get_current_target(cmd_ctx);
    	watchpoint_remove(target, addr);
    
    	return ERROR_OK;
    }
    
    
    /**
     * Translate a virtual address to a physical address.
     *
     * The low-level target implementation must have logged a detailed error
     * which is forwarded to telnet/GDB session.
     */
    static int handle_virt2phys_command(command_context_t *cmd_ctx,
    		char *cmd, char **args, int argc)
    {
    	if (argc != 1)
    		return ERROR_COMMAND_SYNTAX_ERROR;
    
    	uint32_t va;
    	int retval = parse_u32(args[0], &va);
    	if (ERROR_OK != retval)
    		return retval;
    	uint32_t pa;
    
    	target_t *target = get_current_target(cmd_ctx);
    	retval = target->type->virt2phys(target, va, &pa);
    	if (retval == ERROR_OK)
    		command_print(cmd_ctx, "Physical address 0x%08" PRIx32 "", pa);
    
    	return retval;
    }
    
    static void writeData(FILE *f, const void *data, size_t len)
    {
    	size_t written = fwrite(data, 1, len, f);
    	if (written != len)
    		LOG_ERROR("failed to write %zu bytes: %s", len, strerror(errno));
    }
    
    static void writeLong(FILE *f, int l)
    {
    	int i;
    	for (i = 0; i < 4; i++)
    	{
    		char c = (l >> (i*8))&0xff;
    		writeData(f, &c, 1);
    	}
    
    }
    
    static void writeString(FILE *f, char *s)
    {
    	writeData(f, s, strlen(s));
    }
    
    /* Dump a gmon.out histogram file. */
    static void writeGmon(uint32_t *samples, uint32_t sampleNum, char *filename)
    {
    	uint32_t i;
    	FILE *f = fopen(filename, "w");
    	if (f == NULL)
    		return;
    	writeString(f, "gmon");
    	writeLong(f, 0x00000001); /* Version */
    	writeLong(f, 0); /* padding */
    	writeLong(f, 0); /* padding */
    	writeLong(f, 0); /* padding */
    
    	uint8_t zero = 0;  /* GMON_TAG_TIME_HIST */
    	writeData(f, &zero, 1);
    
    	/* figure out bucket size */
    	uint32_t min = samples[0];
    	uint32_t max = samples[0];
    	for (i = 0; i < sampleNum; i++)
    	{
    		if (min > samples[i])
    		{
    			min = samples[i];
    		}
    		if (max < samples[i])
    		{
    			max = samples[i];
    		}
    	}
    
    	int addressSpace = (max-min + 1);
    
    	static const uint32_t maxBuckets = 256 * 1024; /* maximum buckets. */
    	uint32_t length = addressSpace;
    	if (length > maxBuckets)
    	{
    		length = maxBuckets;
    	}
    	int *buckets = malloc(sizeof(int)*length);
    	if (buckets == NULL)
    	{
    		fclose(f);
    		return;
    	}
    	memset(buckets, 0, sizeof(int)*length);
    	for (i = 0; i < sampleNum;i++)
    	{
    		uint32_t address = samples[i];
    		long long a = address-min;
    		long long b = length-1;
    		long long c = addressSpace-1;
    		int index = (a*b)/c; /* danger!!!! int32 overflows */
    		buckets[index]++;
    	}
    
    	/* append binary memory gmon.out &profile_hist_hdr ((char*)&profile_hist_hdr + sizeof(struct gmon_hist_hdr)) */
    	writeLong(f, min); 			/* low_pc */
    	writeLong(f, max);			/* high_pc */
    	writeLong(f, length);		/* # of samples */
    	writeLong(f, 64000000); 	/* 64MHz */
    	writeString(f, "seconds");
    	for (i = 0; i < (15-strlen("seconds")); i++)
    		writeData(f, &zero, 1);
    	writeString(f, "s");
    
    	/*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
    
    	char *data = malloc(2*length);
    	if (data != NULL)
    	{
    		for (i = 0; i < length;i++)
    		{
    			int val;
    			val = buckets[i];
    			if (val > 65535)
    			{
    				val = 65535;
    			}
    			data[i*2]=val&0xff;
    			data[i*2 + 1]=(val >> 8)&0xff;
    		}
    		free(buckets);
    		writeData(f, data, length * 2);
    		free(data);
    	} else
    	{
    		free(buckets);
    	}
    
    	fclose(f);
    }
    
    /* profiling samples the CPU PC as quickly as OpenOCD is able, which will be used as a random sampling of PC */
    static int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	target_t *target = get_current_target(cmd_ctx);
    	struct timeval timeout, now;
    
    	gettimeofday(&timeout, NULL);
    	if (argc != 2)
    	{
    		return ERROR_COMMAND_SYNTAX_ERROR;
    	}
    	unsigned offset;
    	int retval = parse_uint(args[0], &offset);
    	if (ERROR_OK != retval)
    		return retval;
    
    	timeval_add_time(&timeout, offset, 0);
    
    	command_print(cmd_ctx, "Starting profiling. Halting and resuming the target as often as we can...");
    
    	static const int maxSample = 10000;
    	uint32_t *samples = malloc(sizeof(uint32_t)*maxSample);
    	if (samples == NULL)
    		return ERROR_OK;
    
    	int numSamples = 0;
    	/* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
    	reg_t *reg = register_get_by_name(target->reg_cache, "pc", 1);
    
    	for (;;)
    	{
    		target_poll(target);
    		if (target->state == TARGET_HALTED)
    		{
    			uint32_t t=*((uint32_t *)reg->value);
    			samples[numSamples++]=t;
    			retval = target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
    			target_poll(target);
    			alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
    		} else if (target->state == TARGET_RUNNING)
    		{
    			/* We want to quickly sample the PC. */
    			if ((retval = target_halt(target)) != ERROR_OK)
    			{
    				free(samples);
    				return retval;
    			}
    		} else
    		{
    			command_print(cmd_ctx, "Target not halted or running");
    			retval = ERROR_OK;
    			break;
    		}
    		if (retval != ERROR_OK)
    		{
    			break;
    		}
    
    		gettimeofday(&now, NULL);
    		if ((numSamples >= maxSample) || ((now.tv_sec >= timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
    		{
    			command_print(cmd_ctx, "Profiling completed. %d samples.", numSamples);
    			if ((retval = target_poll(target)) != ERROR_OK)
    			{
    				free(samples);
    				return retval;
    			}
    			if (target->state == TARGET_HALTED)
    			{
    				target_resume(target, 1, 0, 0, 0); /* current pc, addr = 0, do not handle breakpoints, not debugging */
    			}
    			if ((retval = target_poll(target)) != ERROR_OK)
    			{
    				free(samples);
    				return retval;
    			}
    			writeGmon(samples, numSamples, args[1]);
    			command_print(cmd_ctx, "Wrote %s", args[1]);
    			break;
    		}
    	}
    	free(samples);
    
    	return ERROR_OK;
    }
    
    static int new_int_array_element(Jim_Interp * interp, const char *varname, int idx, uint32_t val)
    {
    	char *namebuf;
    	Jim_Obj *nameObjPtr, *valObjPtr;
    	int result;
    
    	namebuf = alloc_printf("%s(%d)", varname, idx);
    	if (!namebuf)
    		return JIM_ERR;
    
    	nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
    	valObjPtr = Jim_NewIntObj(interp, val);
    	if (!nameObjPtr || !valObjPtr)
    	{
    		free(namebuf);
    		return JIM_ERR;
    	}
    
    	Jim_IncrRefCount(nameObjPtr);
    	Jim_IncrRefCount(valObjPtr);
    	result = Jim_SetVariable(interp, nameObjPtr, valObjPtr);
    	Jim_DecrRefCount(interp, nameObjPtr);
    	Jim_DecrRefCount(interp, valObjPtr);
    	free(namebuf);
    	/* printf("%s(%d) <= 0%08x\n", varname, idx, val); */
    	return result;
    }
    
    static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
    {
    	command_context_t *context;
    	target_t *target;
    
    	context = Jim_GetAssocData(interp, "context");
    	if (context == NULL)
    	{
    		LOG_ERROR("mem2array: no command context");
    		return JIM_ERR;
    	}
    	target = get_current_target(context);
    	if (target == NULL)
    	{
    		LOG_ERROR("mem2array: no current target");
    		return JIM_ERR;
    	}
    
    	return 	target_mem2array(interp, target, argc-1, argv + 1);
    }
    
    static int target_mem2array(Jim_Interp *interp, target_t *target, int argc, Jim_Obj *const *argv)
    {
    	long l;
    	uint32_t width;
    	int len;
    	uint32_t addr;
    	uint32_t count;
    	uint32_t v;
    	const char *varname;
    	uint8_t buffer[4096];
    	int  n, e, retval;
    	uint32_t i;
    
    	/* argv[1] = name of array to receive the data
    	 * argv[2] = desired width
    	 * argv[3] = memory address
    	 * argv[4] = count of times to read
    	 */
    	if (argc != 4) {
    		Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
    		return JIM_ERR;
    	}
    	varname = Jim_GetString(argv[0], &len);
    	/* given "foo" get space for worse case "foo(%d)" .. add 20 */
    
    	e = Jim_GetLong(interp, argv[1], &l);
    	width = l;
    	if (e != JIM_OK) {
    		return e;
    	}
    
    	e = Jim_GetLong(interp, argv[2], &l);
    	addr = l;
    	if (e != JIM_OK) {
    		return e;
    	}
    	e = Jim_GetLong(interp, argv[3], &l);
    	len = l;
    	if (e != JIM_OK) {
    		return e;
    	}
    	switch (width) {
    		case 8:
    			width = 1;
    			break;
    		case 16:
    			width = 2;
    			break;
    		case 32:
    			width = 4;
    			break;
    		default:
    			Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
    			Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
    			return JIM_ERR;
    	}
    	if (len == 0) {
    		Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
    		Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: zero width read?", NULL);
    		return JIM_ERR;
    	}
    	if ((addr + (len * width)) < addr) {
    		Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
    		Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: addr + len - wraps to zero?", NULL);
    		return JIM_ERR;
    	}
    	/* absurd transfer size? */
    	if (len > 65536) {
    		Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
    		Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: absurd > 64K item request", NULL);
    		return JIM_ERR;
    	}
    
    	if ((width == 1) ||
    		((width == 2) && ((addr & 1) == 0)) ||
    		((width == 4) && ((addr & 3) == 0))) {
    		/* all is well */
    	} else {
    		char buf[100];
    		Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
    		sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
    				addr,
    				width);
    		Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
    		return JIM_ERR;
    	}
    
    	/* Transfer loop */
    
    	/* index counter */
    	n = 0;
    	/* assume ok */
    	e = JIM_OK;
    	while (len) {
    		/* Slurp... in buffer size chunks */
    
    		count = len; /* in objects.. */
    		if (count > (sizeof(buffer)/width)) {
    			count = (sizeof(buffer)/width);
    		}
    
    		retval = target_read_memory(target, addr, width, count, buffer);
    		if (retval != ERROR_OK) {
    			/* BOO !*/
    			LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed",
    					  (unsigned int)addr,
    					  (int)width,
    					  (int)count);
    			Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
    			Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
    			e = JIM_ERR;
    			len = 0;
    		} else {
    			v = 0; /* shut up gcc */
    			for (i = 0 ;i < count ;i++, n++) {
    				switch (width) {
    					case 4:
    						v = target_buffer_get_u32(target, &buffer[i*width]);
    						break;
    					case 2:
    						v = target_buffer_get_u16(target, &buffer[i*width]);
    						break;
    					case 1:
    						v = buffer[i] & 0x0ff;
    						break;
    				}
    				new_int_array_element(interp, varname, n, v);
    			}
    			len -= count;
    		}
    	}
    
    	Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
    
    	return JIM_OK;
    }
    
    static int get_int_array_element(Jim_Interp * interp, const char *varname, int idx, uint32_t *val)
    {
    	char *namebuf;
    	Jim_Obj *nameObjPtr, *valObjPtr;
    	int result;
    	long l;
    
    	namebuf = alloc_printf("%s(%d)", varname, idx);
    	if (!namebuf)
    		return JIM_ERR;
    
    	nameObjPtr = Jim_NewStringObj(interp, namebuf, -1);
    	if (!nameObjPtr)
    	{
    		free(namebuf);
    		return JIM_ERR;
    	}
    
    	Jim_IncrRefCount(nameObjPtr);
    	valObjPtr = Jim_GetVariable(interp, nameObjPtr, JIM_ERRMSG);
    	Jim_DecrRefCount(interp, nameObjPtr);
    	free(namebuf);
    	if (valObjPtr == NULL)
    		return JIM_ERR;
    
    	result = Jim_GetLong(interp, valObjPtr, &l);
    	/* printf("%s(%d) => 0%08x\n", varname, idx, val); */
    	*val = l;
    	return result;
    }
    
    static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
    {
    	command_context_t *context;
    	target_t *target;
    
    	context = Jim_GetAssocData(interp, "context");
    	if (context == NULL) {
    		LOG_ERROR("array2mem: no command context");
    		return JIM_ERR;
    	}
    	target = get_current_target(context);
    	if (target == NULL) {
    		LOG_ERROR("array2mem: no current target");
    		return JIM_ERR;
    	}
    
    	return target_array2mem(interp,target, argc-1, argv + 1);
    }
    
    static int target_array2mem(Jim_Interp *interp, target_t *target, int argc, Jim_Obj *const *argv)
    {
    	long l;
    	uint32_t width;
    	int len;
    	uint32_t addr;
    	uint32_t count;
    	uint32_t v;
    	const char *varname;
    	uint8_t buffer[4096];
    	int  n, e, retval;
    	uint32_t i;
    
    	/* argv[1] = name of array to get the data
    	 * argv[2] = desired width
    	 * argv[3] = memory address
    	 * argv[4] = count to write
    	 */
    	if (argc != 4) {
    		Jim_WrongNumArgs(interp, 1, argv, "varname width addr nelems");
    		return JIM_ERR;
    	}
    	varname = Jim_GetString(argv[0], &len);
    	/* given "foo" get space for worse case "foo(%d)" .. add 20 */
    
    	e = Jim_GetLong(interp, argv[1], &l);
    	width = l;
    	if (e != JIM_OK) {
    		return e;
    	}
    
    	e = Jim_GetLong(interp, argv[2], &l);
    	addr = l;
    	if (e != JIM_OK) {
    		return e;
    	}
    	e = Jim_GetLong(interp, argv[3], &l);
    	len = l;
    	if (e != JIM_OK) {
    		return e;
    	}
    	switch (width) {
    		case 8:
    			width = 1;
    			break;
    		case 16:
    			width = 2;
    			break;
    		case 32:
    			width = 4;
    			break;
    		default:
    			Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
    			Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
    			return JIM_ERR;
    	}
    	if (len == 0) {
    		Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
    		Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: zero width read?", NULL);
    		return JIM_ERR;
    	}
    	if ((addr + (len * width)) < addr) {
    		Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
    		Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: addr + len - wraps to zero?", NULL);
    		return JIM_ERR;
    	}
    	/* absurd transfer size? */
    	if (len > 65536) {
    		Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
    		Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: absurd > 64K item request", NULL);
    		return JIM_ERR;
    	}
    
    	if ((width == 1) ||
    		((width == 2) && ((addr & 1) == 0)) ||
    		((width == 4) && ((addr & 3) == 0))) {
    		/* all is well */
    	} else {
    		char buf[100];
    		Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
    		sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads",
    				(unsigned int)addr,
    				(int)width);
    		Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
    		return JIM_ERR;
    	}
    
    	/* Transfer loop */
    
    	/* index counter */
    	n = 0;
    	/* assume ok */
    	e = JIM_OK;
    	while (len) {
    		/* Slurp... in buffer size chunks */
    
    		count = len; /* in objects.. */
    		if (count > (sizeof(buffer)/width)) {
    			count = (sizeof(buffer)/width);
    		}
    
    		v = 0; /* shut up gcc */
    		for (i = 0 ;i < count ;i++, n++) {
    			get_int_array_element(interp, varname, n, &v);
    			switch (width) {
    			case 4:
    				target_buffer_set_u32(target, &buffer[i*width], v);
    				break;
    			case 2:
    				target_buffer_set_u16(target, &buffer[i*width], v);
    				break;
    			case 1:
    				buffer[i] = v & 0x0ff;
    				break;
    			}
    		}
    		len -= count;
    
    		retval = target_write_memory(target, addr, width, count, buffer);
    		if (retval != ERROR_OK) {
    			/* BOO !*/
    			LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed",
    					  (unsigned int)addr,
    					  (int)width,
    					  (int)count);
    			Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
    			Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
    			e = JIM_ERR;
    			len = 0;
    		}
    	}
    
    	Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
    
    	return JIM_OK;
    }
    
    void target_all_handle_event(enum target_event e)
    {
    	target_t *target;
    
    	LOG_DEBUG("**all*targets: event: %d, %s",
    			   (int)e,
    			   Jim_Nvp_value2name_simple(nvp_target_event, e)->name);
    
    	target = all_targets;
    	while (target) {
    		target_handle_event(target, e);
    		target = target->next;
    	}
    }
    
    void target_handle_event(target_t *target, enum target_event e)
    {
    	target_event_action_t *teap;
    	int done;
    
    	teap = target->event_action;
    
    	done = 0;
    	while (teap) {
    		if (teap->event == e) {
    			done = 1;
    			LOG_DEBUG("target: (%d) %s (%s) event: %d (%s) action: %s",
    					   target->target_number,
    					   target->cmd_name,
    					   target_get_name(target),
    					   e,
    					   Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
    					   Jim_GetString(teap->body, NULL));
    			if (Jim_EvalObj(interp, teap->body) != JIM_OK)
    			{
    				Jim_PrintErrorMessage(interp);
    			}
    		}
    		teap = teap->next;
    	}
    	if (!done) {
    		LOG_DEBUG("event: %d %s - no action",
    				   e,
    				   Jim_Nvp_value2name_simple(nvp_target_event, e)->name);
    	}
    }
    
    enum target_cfg_param {
    	TCFG_TYPE,
    	TCFG_EVENT,
    	TCFG_WORK_AREA_VIRT,
    	TCFG_WORK_AREA_PHYS,
    	TCFG_WORK_AREA_SIZE,
    	TCFG_WORK_AREA_BACKUP,
    	TCFG_ENDIAN,
    	TCFG_VARIANT,
    	TCFG_CHAIN_POSITION,
    };
    
    static Jim_Nvp nvp_config_opts[] = {
    	{ .name = "-type",             .value = TCFG_TYPE },
    	{ .name = "-event",            .value = TCFG_EVENT },
    	{ .name = "-work-area-virt",   .value = TCFG_WORK_AREA_VIRT },
    	{ .name = "-work-area-phys",   .value = TCFG_WORK_AREA_PHYS },
    	{ .name = "-work-area-size",   .value = TCFG_WORK_AREA_SIZE },
    	{ .name = "-work-area-backup", .value = TCFG_WORK_AREA_BACKUP },
    	{ .name = "-endian" ,          .value = TCFG_ENDIAN },
    	{ .name = "-variant",          .value = TCFG_VARIANT },
    	{ .name = "-chain-position",   .value = TCFG_CHAIN_POSITION },
    
    	{ .name = NULL, .value = -1 }
    };
    
    static int target_configure(Jim_GetOptInfo *goi, target_t *target)
    {
    	Jim_Nvp *n;
    	Jim_Obj *o;
    	jim_wide w;
    	char *cp;
    	int e;
    
    	/* parse config or cget options ... */
    	while (goi->argc > 0) {
    		Jim_SetEmptyResult(goi->interp);
    		/* Jim_GetOpt_Debug(goi); */
    
    		if (target->type->target_jim_configure) {
    			/* target defines a configure function */
    			/* target gets first dibs on parameters */
    			e = (*(target->type->target_jim_configure))(target, goi);
    			if (e == JIM_OK) {
    				/* more? */
    				continue;
    			}
    			if (e == JIM_ERR) {
    				/* An error */
    				return e;
    			}
    			/* otherwise we 'continue' below */
    		}
    		e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
    		if (e != JIM_OK) {
    			Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
    			return e;
    		}
    		switch (n->value) {
    		case TCFG_TYPE:
    			/* not setable */
    			if (goi->isconfigure) {
    				Jim_SetResult_sprintf(goi->interp, "not setable: %s", n->name);
    				return JIM_ERR;
    			} else {
    			no_params:
    				if (goi->argc != 0) {
    					Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "NO PARAMS");
    					return JIM_ERR;
    				}
    			}
    			Jim_SetResultString(goi->interp, target_get_name(target), -1);
    			/* loop for more */
    			break;
    		case TCFG_EVENT:
    			if (goi->argc == 0) {
    				Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
    				return JIM_ERR;
    			}
    
    			e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
    			if (e != JIM_OK) {
    				Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
    				return e;
    			}
    
    			if (goi->isconfigure) {
    				if (goi->argc != 1) {
    					Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
    					return JIM_ERR;
    				}
    			} else {
    				if (goi->argc != 0) {
    					Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
    					return JIM_ERR;
    				}
    			}
    
    			{
    				target_event_action_t *teap;
    
    				teap = target->event_action;
    				/* replace existing? */
    				while (teap) {
    					if (teap->event == (enum target_event)n->value) {
    						break;
    					}
    					teap = teap->next;
    				}
    
    				if (goi->isconfigure) {
    					if (teap == NULL) {
    						/* create new */
    						teap = calloc(1, sizeof(*teap));
    					}
    					teap->event = n->value;
    					Jim_GetOpt_Obj(goi, &o);
    					if (teap->body) {
    						Jim_DecrRefCount(interp, teap->body);
    					}
    					teap->body  = Jim_DuplicateObj(goi->interp, o);
    					/*
    					 * FIXME:
    					 *     Tcl/TK - "tk events" have a nice feature.
    					 *     See the "BIND" command.
    					 *    We should support that here.
    					 *     You can specify %X and %Y in the event code.
    					 *     The idea is: %T - target name.
    					 *     The idea is: %N - target number
    					 *     The idea is: %E - event name.
    					 */
    					Jim_IncrRefCount(teap->body);
    
    					/* add to head of event list */
    					teap->next = target->event_action;
    					target->event_action = teap;
    					Jim_SetEmptyResult(goi->interp);
    				} else {
    					/* get */
    					if (teap == NULL) {
    						Jim_SetEmptyResult(goi->interp);
    					} else {
    						Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
    					}
    				}
    			}
    			/* loop for more */
    			break;
    
    		case TCFG_WORK_AREA_VIRT:
    			if (goi->isconfigure) {
    				target_free_all_working_areas(target);
    				e = Jim_GetOpt_Wide(goi, &w);
    				if (e != JIM_OK) {
    					return e;
    				}
    				target->working_area_virt = w;
    			} else {
    				if (goi->argc != 0) {
    					goto no_params;
    				}
    			}
    			Jim_SetResult(interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
    			/* loop for more */
    			break;
    
    		case TCFG_WORK_AREA_PHYS:
    			if (goi->isconfigure) {
    				target_free_all_working_areas(target);
    				e = Jim_GetOpt_Wide(goi, &w);
    				if (e != JIM_OK) {
    					return e;
    				}
    				target->working_area_phys = w;
    			} else {
    				if (goi->argc != 0) {
    					goto no_params;
    				}
    			}
    			Jim_SetResult(interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
    			/* loop for more */
    			break;
    
    		case TCFG_WORK_AREA_SIZE:
    			if (goi->isconfigure) {
    				target_free_all_working_areas(target);
    				e = Jim_GetOpt_Wide(goi, &w);
    				if (e != JIM_OK) {
    					return e;
    				}
    				target->working_area_size = w;
    			} else {
    				if (goi->argc != 0) {
    					goto no_params;
    				}
    			}
    			Jim_SetResult(interp, Jim_NewIntObj(goi->interp, target->working_area_size));
    			/* loop for more */
    			break;
    
    		case TCFG_WORK_AREA_BACKUP:
    			if (goi->isconfigure) {
    				target_free_all_working_areas(target);
    				e = Jim_GetOpt_Wide(goi, &w);
    				if (e != JIM_OK) {
    					return e;
    				}
    				/* make this exactly 1 or 0 */
    				target->backup_working_area = (!!w);
    			} else {
    				if (goi->argc != 0) {
    					goto no_params;
    				}
    			}
    			Jim_SetResult(interp, Jim_NewIntObj(goi->interp, target->backup_working_area));
    			/* loop for more e*/
    			break;
    
    		case TCFG_ENDIAN:
    			if (goi->isconfigure) {
    				e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
    				if (e != JIM_OK) {
    					Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
    					return e;
    				}
    				target->endianness = n->value;
    			} else {
    				if (goi->argc != 0) {
    					goto no_params;
    				}
    			}
    			n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
    			if (n->name == NULL) {
    				target->endianness = TARGET_LITTLE_ENDIAN;
    				n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
    			}
    			Jim_SetResultString(goi->interp, n->name, -1);
    			/* loop for more */
    			break;
    
    		case TCFG_VARIANT:
    			if (goi->isconfigure) {
    				if (goi->argc < 1) {
    					Jim_SetResult_sprintf(goi->interp,
    										   "%s ?STRING?",
    										   n->name);
    					return JIM_ERR;
    				}
    				if (target->variant) {
    					free((void *)(target->variant));
    				}
    				e = Jim_GetOpt_String(goi, &cp, NULL);
    				target->variant = strdup(cp);
    			} else {
    				if (goi->argc != 0) {
    					goto no_params;
    				}
    			}
    			Jim_SetResultString(goi->interp, target->variant,-1);
    			/* loop for more */
    			break;
    		case TCFG_CHAIN_POSITION:
    			if (goi->isconfigure) {
    				Jim_Obj *o;
    				jtag_tap_t *tap;
    				target_free_all_working_areas(target);
    				e = Jim_GetOpt_Obj(goi, &o);
    				if (e != JIM_OK) {
    					return e;
    				}
    				tap = jtag_tap_by_jim_obj(goi->interp, o);
    				if (tap == NULL) {
    					return JIM_ERR;
    				}
    				/* make this exactly 1 or 0 */
    				target->tap = tap;
    			} else {
    				if (goi->argc != 0) {
    					goto no_params;
    				}
    			}
    			Jim_SetResultString(interp, target->tap->dotted_name, -1);
    			/* loop for more e*/
    			break;
    		}
    	} /* while (goi->argc) */
    
    
    		/* done - we return */
    	return JIM_OK;
    }
    
    /** this is the 'tcl' handler for the target specific command */
    static int tcl_target_func(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
    {
    	Jim_GetOptInfo goi;
    	jim_wide a,b,c;
    	int x,y,z;
    	uint8_t  target_buf[32];
    	Jim_Nvp *n;
    	target_t *target;
    	struct command_context_s *cmd_ctx;
    	int e;
    
    	enum {
    		TS_CMD_CONFIGURE,
    		TS_CMD_CGET,
    
    		TS_CMD_MWW, TS_CMD_MWH, TS_CMD_MWB,
    		TS_CMD_MDW, TS_CMD_MDH, TS_CMD_MDB,
    		TS_CMD_MRW, TS_CMD_MRH, TS_CMD_MRB,
    		TS_CMD_MEM2ARRAY, TS_CMD_ARRAY2MEM,
    		TS_CMD_EXAMINE,
    		TS_CMD_POLL,
    		TS_CMD_RESET,
    		TS_CMD_HALT,
    		TS_CMD_WAITSTATE,
    		TS_CMD_EVENTLIST,
    		TS_CMD_CURSTATE,
    		TS_CMD_INVOKE_EVENT,
    	};
    
    	static const Jim_Nvp target_options[] = {
    		{ .name = "configure", .value = TS_CMD_CONFIGURE },
    		{ .name = "cget", .value = TS_CMD_CGET },
    		{ .name = "mww", .value = TS_CMD_MWW },
    		{ .name = "mwh", .value = TS_CMD_MWH },
    		{ .name = "mwb", .value = TS_CMD_MWB },
    		{ .name = "mdw", .value = TS_CMD_MDW },
    		{ .name = "mdh", .value = TS_CMD_MDH },
    		{ .name = "mdb", .value = TS_CMD_MDB },
    		{ .name = "mem2array", .value = TS_CMD_MEM2ARRAY },
    		{ .name = "array2mem", .value = TS_CMD_ARRAY2MEM },
    		{ .name = "eventlist", .value = TS_CMD_EVENTLIST },
    		{ .name = "curstate",  .value = TS_CMD_CURSTATE },
    
    		{ .name = "arp_examine", .value = TS_CMD_EXAMINE },
    		{ .name = "arp_poll", .value = TS_CMD_POLL },
    		{ .name = "arp_reset", .value = TS_CMD_RESET },
    		{ .name = "arp_halt", .value = TS_CMD_HALT },
    		{ .name = "arp_waitstate", .value = TS_CMD_WAITSTATE },
    		{ .name = "invoke-event", .value = TS_CMD_INVOKE_EVENT },
    
    		{ .name = NULL, .value = -1 },
    	};
    
    	/* go past the "command" */
    	Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
    
    	target = Jim_CmdPrivData(goi.interp);
    	cmd_ctx = Jim_GetAssocData(goi.interp, "context");
    
    	/* commands here are in an NVP table */
    	e = Jim_GetOpt_Nvp(&goi, target_options, &n);
    	if (e != JIM_OK) {
    		Jim_GetOpt_NvpUnknown(&goi, target_options, 0);
    		return e;
    	}
    	/* Assume blank result */
    	Jim_SetEmptyResult(goi.interp);
    
    	switch (n->value) {
    	case TS_CMD_CONFIGURE:
    		if (goi.argc < 2) {
    			Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv, "missing: -option VALUE ...");
    			return JIM_ERR;
    		}
    		goi.isconfigure = 1;
    		return target_configure(&goi, target);
    	case TS_CMD_CGET:
    		// some things take params
    		if (goi.argc < 1) {
    			Jim_WrongNumArgs(goi.interp, 0, goi.argv, "missing: ?-option?");
    			return JIM_ERR;
    		}
    		goi.isconfigure = 0;
    		return target_configure(&goi, target);
    		break;
    	case TS_CMD_MWW:
    	case TS_CMD_MWH:
    	case TS_CMD_MWB:
    		/* argv[0] = cmd
    		 * argv[1] = address
    		 * argv[2] = data
    		 * argv[3] = optional count.
    		 */
    
    		if ((goi.argc == 2) || (goi.argc == 3)) {
    			/* all is well */
    		} else {
    		mwx_error:
    			Jim_SetResult_sprintf(goi.interp, "expected: %s ADDR DATA [COUNT]", n->name);
    			return JIM_ERR;
    		}
    
    		e = Jim_GetOpt_Wide(&goi, &a);
    		if (e != JIM_OK) {
    			goto mwx_error;
    		}
    
    		e = Jim_GetOpt_Wide(&goi, &b);
    		if (e != JIM_OK) {
    			goto mwx_error;
    		}
    		if (goi.argc == 3) {
    			e = Jim_GetOpt_Wide(&goi, &c);
    			if (e != JIM_OK) {
    				goto mwx_error;
    			}
    		} else {
    			c = 1;
    		}
    
    		switch (n->value) {
    		case TS_CMD_MWW:
    			target_buffer_set_u32(target, target_buf, b);
    			b = 4;
    			break;
    		case TS_CMD_MWH:
    			target_buffer_set_u16(target, target_buf, b);
    			b = 2;
    			break;
    		case TS_CMD_MWB:
    			target_buffer_set_u8(target, target_buf, b);
    			b = 1;
    			break;
    		}
    		for (x = 0 ; x < c ; x++) {
    			e = target_write_memory(target, a, b, 1, target_buf);
    			if (e != ERROR_OK) {
    				Jim_SetResult_sprintf(interp, "Error writing @ 0x%08x: %d\n", (int)(a), e);
    				return JIM_ERR;
    			}
    			/* b = width */
    			a = a + b;
    		}
    		return JIM_OK;
    		break;
    
    		/* display */
    	case TS_CMD_MDW:
    	case TS_CMD_MDH:
    	case TS_CMD_MDB:
    		/* argv[0] = command
    		 * argv[1] = address
    		 * argv[2] = optional count
    		 */
    		if ((goi.argc == 2) || (goi.argc == 3)) {
    			Jim_SetResult_sprintf(goi.interp, "expected: %s ADDR [COUNT]", n->name);
    			return JIM_ERR;
    		}
    		e = Jim_GetOpt_Wide(&goi, &a);
    		if (e != JIM_OK) {
    			return JIM_ERR;
    		}
    		if (goi.argc) {
    			e = Jim_GetOpt_Wide(&goi, &c);
    			if (e != JIM_OK) {
    				return JIM_ERR;
    			}
    		} else {
    			c = 1;
    		}
    		b = 1; /* shut up gcc */
    		switch (n->value) {
    		case TS_CMD_MDW:
    			b =  4;
    			break;
    		case TS_CMD_MDH:
    			b = 2;
    			break;
    		case TS_CMD_MDB:
    			b = 1;
    			break;
    		}
    
    		/* convert to "bytes" */
    		c = c * b;
    		/* count is now in 'BYTES' */
    		while (c > 0) {
    			y = c;
    			if (y > 16) {
    				y = 16;
    			}
    			e = target_read_memory(target, a, b, y / b, target_buf);
    			if (e != ERROR_OK) {
    				Jim_SetResult_sprintf(interp, "error reading target @ 0x%08lx", (int)(a));
    				return JIM_ERR;
    			}
    
    			Jim_fprintf(interp, interp->cookie_stdout, "0x%08x ", (int)(a));
    			switch (b) {
    			case 4:
    				for (x = 0 ; (x < 16) && (x < y) ; x += 4) {
    					z = target_buffer_get_u32(target, &(target_buf[ x * 4 ]));
    					Jim_fprintf(interp, interp->cookie_stdout, "%08x ", (int)(z));
    				}
    				for (; (x < 16) ; x += 4) {
    					Jim_fprintf(interp, interp->cookie_stdout, "         ");
    				}
    				break;
    			case 2:
    				for (x = 0 ; (x < 16) && (x < y) ; x += 2) {
    					z = target_buffer_get_u16(target, &(target_buf[ x * 2 ]));
    					Jim_fprintf(interp, interp->cookie_stdout, "%04x ", (int)(z));
    				}
    				for (; (x < 16) ; x += 2) {
    					Jim_fprintf(interp, interp->cookie_stdout, "     ");
    				}
    				break;
    			case 1:
    			default:
    				for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
    					z = target_buffer_get_u8(target, &(target_buf[ x * 4 ]));
    					Jim_fprintf(interp, interp->cookie_stdout, "%02x ", (int)(z));
    				}
    				for (; (x < 16) ; x += 1) {
    					Jim_fprintf(interp, interp->cookie_stdout, "   ");
    				}
    				break;
    			}
    			/* ascii-ify the bytes */
    			for (x = 0 ; x < y ; x++) {
    				if ((target_buf[x] >= 0x20) &&
    					(target_buf[x] <= 0x7e)) {
    					/* good */
    				} else {
    					/* smack it */
    					target_buf[x] = '.';
    				}
    			}
    			/* space pad  */
    			while (x < 16) {
    				target_buf[x] = ' ';
    				x++;
    			}
    			/* terminate */
    			target_buf[16] = 0;
    			/* print - with a newline */
    			Jim_fprintf(interp, interp->cookie_stdout, "%s\n", target_buf);
    			/* NEXT... */
    			c -= 16;
    			a += 16;
    		}
    		return JIM_OK;
    	case TS_CMD_MEM2ARRAY:
    		return target_mem2array(goi.interp, target, goi.argc, goi.argv);
    		break;
    	case TS_CMD_ARRAY2MEM:
    		return target_array2mem(goi.interp, target, goi.argc, goi.argv);
    		break;
    	case TS_CMD_EXAMINE:
    		if (goi.argc) {
    			Jim_WrongNumArgs(goi.interp, 2, argv, "[no parameters]");
    			return JIM_ERR;
    		}
    		if (!target->tap->enabled)
    			goto err_tap_disabled;
    		e = target->type->examine(target);
    		if (e != ERROR_OK) {
    			Jim_SetResult_sprintf(interp, "examine-fails: %d", e);
    			return JIM_ERR;
    		}
    		return JIM_OK;
    	case TS_CMD_POLL:
    		if (goi.argc) {
    			Jim_WrongNumArgs(goi.interp, 2, argv, "[no parameters]");
    			return JIM_ERR;
    		}
    		if (!target->tap->enabled)
    			goto err_tap_disabled;
    		if (!(target_was_examined(target))) {
    			e = ERROR_TARGET_NOT_EXAMINED;
    		} else {
    			e = target->type->poll(target);
    		}
    		if (e != ERROR_OK) {
    			Jim_SetResult_sprintf(interp, "poll-fails: %d", e);
    			return JIM_ERR;
    		} else {
    			return JIM_OK;
    		}
    		break;
    	case TS_CMD_RESET:
    		if (goi.argc != 2) {
    			Jim_WrongNumArgs(interp, 2, argv, "t | f|assert | deassert BOOL");
    			return JIM_ERR;
    		}
    		e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
    		if (e != JIM_OK) {
    			Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
    			return e;
    		}
    		/* the halt or not param */
    		e = Jim_GetOpt_Wide(&goi, &a);
    		if (e != JIM_OK) {
    			return e;
    		}
    		if (!target->tap->enabled)
    			goto err_tap_disabled;
    		/* determine if we should halt or not. */
    		target->reset_halt = !!a;
    		/* When this happens - all workareas are invalid. */
    		target_free_all_working_areas_restore(target, 0);
    
    		/* do the assert */
    		if (n->value == NVP_ASSERT) {
    			target->type->assert_reset(target);
    		} else {
    			target->type->deassert_reset(target);
    		}
    		return JIM_OK;
    	case TS_CMD_HALT:
    		if (goi.argc) {
    			Jim_WrongNumArgs(goi.interp, 0, argv, "halt [no parameters]");
    			return JIM_ERR;
    		}
    		if (!target->tap->enabled)
    			goto err_tap_disabled;
    		target->type->halt(target);
    		return JIM_OK;
    	case TS_CMD_WAITSTATE:
    		/* params:  <name>  statename timeoutmsecs */
    		if (goi.argc != 2) {
    			Jim_SetResult_sprintf(goi.interp, "%s STATENAME TIMEOUTMSECS", n->name);
    			return JIM_ERR;
    		}
    		e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
    		if (e != JIM_OK) {
    			Jim_GetOpt_NvpUnknown(&goi, nvp_target_state,1);
    			return e;
    		}
    		e = Jim_GetOpt_Wide(&goi, &a);
    		if (e != JIM_OK) {
    			return e;
    		}
    		if (!target->tap->enabled)
    			goto err_tap_disabled;
    		e = target_wait_state(target, n->value, a);
    		if (e != ERROR_OK) {
    			Jim_SetResult_sprintf(goi.interp,
    								   "target: %s wait %s fails (%d) %s",
    								   target->cmd_name,
    								   n->name,
    								   e, target_strerror_safe(e));
    			return JIM_ERR;
    		} else {
    			return JIM_OK;
    		}
    	case TS_CMD_EVENTLIST:
    		/* List for human, Events defined for this target.
    		 * scripts/programs should use 'name cget -event NAME'
    		 */
    		{
    			target_event_action_t *teap;
    			teap = target->event_action;
    			command_print(cmd_ctx, "Event actions for target (%d) %s\n",
    						   target->target_number,
    						   target->cmd_name);
    			command_print(cmd_ctx, "%-25s | Body", "Event");
    			command_print(cmd_ctx, "------------------------- | ----------------------------------------");
    			while (teap) {
    				command_print(cmd_ctx,
    							   "%-25s | %s",
    							   Jim_Nvp_value2name_simple(nvp_target_event, teap->event)->name,
    							   Jim_GetString(teap->body, NULL));
    				teap = teap->next;
    			}
    			command_print(cmd_ctx, "***END***");
    			return JIM_OK;
    		}
    	case TS_CMD_CURSTATE:
    		if (goi.argc != 0) {
    			Jim_WrongNumArgs(goi.interp, 0, argv, "[no parameters]");
    			return JIM_ERR;
    		}
    		Jim_SetResultString(goi.interp,
    							target_state_name( target ),
    							-1);
    		return JIM_OK;
    	case TS_CMD_INVOKE_EVENT:
    		if (goi.argc != 1) {
    			Jim_SetResult_sprintf(goi.interp, "%s ?EVENTNAME?",n->name);
    			return JIM_ERR;
    		}
    		e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
    		if (e != JIM_OK) {
    			Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
    			return e;
    		}
    		target_handle_event(target, n->value);
    		return JIM_OK;
    	}
    	return JIM_ERR;
    
    err_tap_disabled:
    	Jim_SetResult_sprintf(interp, "[TAP is disabled]");
    	return JIM_ERR;
    }
    
    static int target_create(Jim_GetOptInfo *goi)
    {
    	Jim_Obj *new_cmd;
    	Jim_Cmd *cmd;
    	const char *cp;
    	char *cp2;
    	int e;
    	int x;
    	target_t *target;
    	struct command_context_s *cmd_ctx;
    
    	cmd_ctx = Jim_GetAssocData(goi->interp, "context");
    	if (goi->argc < 3) {
    		Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
    		return JIM_ERR;
    	}
    
    	/* COMMAND */
    	Jim_GetOpt_Obj(goi, &new_cmd);
    	/* does this command exist? */
    	cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
    	if (cmd) {
    		cp = Jim_GetString(new_cmd, NULL);
    		Jim_SetResult_sprintf(goi->interp, "Command/target: %s Exists", cp);
    		return JIM_ERR;
    	}
    
    	/* TYPE */
    	e = Jim_GetOpt_String(goi, &cp2, NULL);
    	cp = cp2;
    	/* now does target type exist */
    	for (x = 0 ; target_types[x] ; x++) {
    		if (0 == strcmp(cp, target_types[x]->name)) {
    			/* found */
    			break;
    		}
    	}
    	if (target_types[x] == NULL) {
    		Jim_SetResult_sprintf(goi->interp, "Unknown target type %s, try one of ", cp);
    		for (x = 0 ; target_types[x] ; x++) {
    			if (target_types[x + 1]) {
    				Jim_AppendStrings(goi->interp,
    								   Jim_GetResult(goi->interp),
    								   target_types[x]->name,
    								   ", ", NULL);
    			} else {
    				Jim_AppendStrings(goi->interp,
    								   Jim_GetResult(goi->interp),
    								   " or ",
    								   target_types[x]->name,NULL);
    			}
    		}
    		return JIM_ERR;
    	}
    
    	/* Create it */
    	target = calloc(1,sizeof(target_t));
    	/* set target number */
    	target->target_number = new_target_number();
    
    	/* allocate memory for each unique target type */
    	target->type = (target_type_t*)calloc(1,sizeof(target_type_t));
    
    	memcpy(target->type, target_types[x], sizeof(target_type_t));
    
    	/* will be set by "-endian" */
    	target->endianness = TARGET_ENDIAN_UNKNOWN;
    
    	target->working_area        = 0x0;
    	target->working_area_size   = 0x0;
    	target->working_areas       = NULL;
    	target->backup_working_area = 0;
    
    	target->state               = TARGET_UNKNOWN;
    	target->debug_reason        = DBG_REASON_UNDEFINED;
    	target->reg_cache           = NULL;
    	target->breakpoints         = NULL;
    	target->watchpoints         = NULL;
    	target->next                = NULL;
    	target->arch_info           = NULL;
    
    	target->display             = 1;
    
    	/* initialize trace information */
    	target->trace_info = malloc(sizeof(trace_t));
    	target->trace_info->num_trace_points         = 0;
    	target->trace_info->trace_points_size        = 0;
    	target->trace_info->trace_points             = NULL;
    	target->trace_info->trace_history_size       = 0;
    	target->trace_info->trace_history            = NULL;
    	target->trace_info->trace_history_pos        = 0;
    	target->trace_info->trace_history_overflowed = 0;
    
    	target->dbgmsg          = NULL;
    	target->dbg_msg_enabled = 0;
    
    	target->endianness = TARGET_ENDIAN_UNKNOWN;
    
    	/* Do the rest as "configure" options */
    	goi->isconfigure = 1;
    	e = target_configure(goi, target);
    
    	if (target->tap == NULL)
    	{
    		Jim_SetResultString(interp, "-chain-position required when creating target", -1);
    		e = JIM_ERR;
    	}
    
    	if (e != JIM_OK) {
    		free(target->type);
    		free(target);
    		return e;
    	}
    
    	if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
    		/* default endian to little if not specified */
    		target->endianness = TARGET_LITTLE_ENDIAN;
    	}
    
    	/* incase variant is not set */
    	if (!target->variant)
    		target->variant = strdup("");
    
    	/* create the target specific commands */
    	if (target->type->register_commands) {
    		(*(target->type->register_commands))(cmd_ctx);
    	}
    	if (target->type->target_create) {
    		(*(target->type->target_create))(target, goi->interp);
    	}
    
    	/* append to end of list */
    	{
    		target_t **tpp;
    		tpp = &(all_targets);
    		while (*tpp) {
    			tpp = &((*tpp)->next);
    		}
    		*tpp = target;
    	}
    
    	cp = Jim_GetString(new_cmd, NULL);
    	target->cmd_name = strdup(cp);
    
    	/* now - create the new target name command */
    	e = Jim_CreateCommand(goi->interp,
    						   /* name */
    						   cp,
    						   tcl_target_func, /* C function */
    						   target, /* private data */
    						   NULL); /* no del proc */
    
    	return e;
    }
    
    static int jim_target(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
    {
    	int x,r,e;
    	jim_wide w;
    	struct command_context_s *cmd_ctx;
    	target_t *target;
    	Jim_GetOptInfo goi;
    	enum tcmd {
    		/* TG = target generic */
    		TG_CMD_CREATE,
    		TG_CMD_TYPES,
    		TG_CMD_NAMES,
    		TG_CMD_CURRENT,
    		TG_CMD_NUMBER,
    		TG_CMD_COUNT,
    	};
    	const char *target_cmds[] = {
    		"create", "types", "names", "current", "number",
    		"count",
    		NULL /* terminate */
    	};
    
    	LOG_DEBUG("Target command params:");
    	LOG_DEBUG("%s", Jim_Debug_ArgvString(interp, argc, argv));
    
    	cmd_ctx = Jim_GetAssocData(interp, "context");
    
    	Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
    
    	if (goi.argc == 0) {
    		Jim_WrongNumArgs(interp, 1, argv, "missing: command ...");
    		return JIM_ERR;
    	}
    
    	/* Jim_GetOpt_Debug(&goi); */
    	r = Jim_GetOpt_Enum(&goi, target_cmds, &x);
    	if (r != JIM_OK) {
    		return r;
    	}
    
    	switch (x) {
    	default:
    		Jim_Panic(goi.interp,"Why am I here?");
    		return JIM_ERR;
    	case TG_CMD_CURRENT:
    		if (goi.argc != 0) {
    			Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
    			return JIM_ERR;
    		}
    		Jim_SetResultString(goi.interp, get_current_target(cmd_ctx)->cmd_name, -1);
    		return JIM_OK;
    	case TG_CMD_TYPES:
    		if (goi.argc != 0) {
    			Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
    			return JIM_ERR;
    		}
    		Jim_SetResult(goi.interp, Jim_NewListObj(goi.interp, NULL, 0));
    		for (x = 0 ; target_types[x] ; x++) {
    			Jim_ListAppendElement(goi.interp,
    								   Jim_GetResult(goi.interp),
    								   Jim_NewStringObj(goi.interp, target_types[x]->name, -1));
    		}
    		return JIM_OK;
    	case TG_CMD_NAMES:
    		if (goi.argc != 0) {
    			Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
    			return JIM_ERR;
    		}
    		Jim_SetResult(goi.interp, Jim_NewListObj(goi.interp, NULL, 0));
    		target = all_targets;
    		while (target) {
    			Jim_ListAppendElement(goi.interp,
    								   Jim_GetResult(goi.interp),
    								   Jim_NewStringObj(goi.interp, target->cmd_name, -1));
    			target = target->next;
    		}
    		return JIM_OK;
    	case TG_CMD_CREATE:
    		if (goi.argc < 3) {
    			Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv, "?name  ... config options ...");
    			return JIM_ERR;
    		}
    		return target_create(&goi);
    		break;
    	case TG_CMD_NUMBER:
    		if (goi.argc != 1) {
    			Jim_SetResult_sprintf(goi.interp, "expected: target number ?NUMBER?");
    			return JIM_ERR;
    		}
    		e = Jim_GetOpt_Wide(&goi, &w);
    		if (e != JIM_OK) {
    			return JIM_ERR;
    		}
    		{
    			target_t *t;
    			t = get_target_by_num(w);
    			if (t == NULL) {
    				Jim_SetResult_sprintf(goi.interp,"Target: number %d does not exist", (int)(w));
    				return JIM_ERR;
    			}
    			Jim_SetResultString(goi.interp, t->cmd_name, -1);
    			return JIM_OK;
    		}
    	case TG_CMD_COUNT:
    		if (goi.argc != 0) {
    			Jim_WrongNumArgs(goi.interp, 0, goi.argv, "<no parameters>");
    			return JIM_ERR;
    		}
    		Jim_SetResult(goi.interp,
    					   Jim_NewIntObj(goi.interp, max_target_number()));
    		return JIM_OK;
    	}
    
    	return JIM_ERR;
    }
    
    
    struct FastLoad
    {
    	uint32_t address;
    	uint8_t *data;
    	int length;
    
    };
    
    static int fastload_num;
    static struct FastLoad *fastload;
    
    static void free_fastload(void)
    {
    	if (fastload != NULL)
    	{
    		int i;
    		for (i = 0; i < fastload_num; i++)
    		{
    			if (fastload[i].data)
    				free(fastload[i].data);
    		}
    		free(fastload);
    		fastload = NULL;
    	}
    }
    
    
    
    
    static int handle_fast_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	uint8_t *buffer;
    	uint32_t buf_cnt;
    	uint32_t image_size;
    	uint32_t min_address = 0;
    	uint32_t max_address = 0xffffffff;
    	int i;
    
    	image_t image;
    
    	duration_t duration;
    	char *duration_text;
    
    	int retval = parse_load_image_command_args(args, argc,
    			&image, &min_address, &max_address);
    	if (ERROR_OK != retval)
    		return retval;
    
    	duration_start_measure(&duration);
    
    	if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
    	{
    		return ERROR_OK;
    	}
    
    	image_size = 0x0;
    	retval = ERROR_OK;
    	fastload_num = image.num_sections;
    	fastload = (struct FastLoad *)malloc(sizeof(struct FastLoad)*image.num_sections);
    	if (fastload == NULL)
    	{
    		image_close(&image);
    		return ERROR_FAIL;
    	}
    	memset(fastload, 0, sizeof(struct FastLoad)*image.num_sections);
    	for (i = 0; i < image.num_sections; i++)
    	{
    		buffer = malloc(image.sections[i].size);
    		if (buffer == NULL)
    		{
    			command_print(cmd_ctx, "error allocating buffer for section (%d bytes)",
    						  (int)(image.sections[i].size));
    			break;
    		}
    
    		if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
    		{
    			free(buffer);
    			break;
    		}
    
    		uint32_t offset = 0;
    		uint32_t length = buf_cnt;
    
    
    		/* DANGER!!! beware of unsigned comparision here!!! */
    
    		if ((image.sections[i].base_address + buf_cnt >= min_address)&&
    				(image.sections[i].base_address < max_address))
    		{
    			if (image.sections[i].base_address < min_address)
    			{
    				/* clip addresses below */
    				offset += min_address-image.sections[i].base_address;
    				length -= offset;
    			}
    
    			if (image.sections[i].base_address + buf_cnt > max_address)
    			{
    				length -= (image.sections[i].base_address + buf_cnt)-max_address;
    			}
    
    			fastload[i].address = image.sections[i].base_address + offset;
    			fastload[i].data = malloc(length);
    			if (fastload[i].data == NULL)
    			{
    				free(buffer);
    				break;
    			}
    			memcpy(fastload[i].data, buffer + offset, length);
    			fastload[i].length = length;
    
    			image_size += length;
    			command_print(cmd_ctx, "%u byte written at address 0x%8.8x",
    						  (unsigned int)length,
    						  ((unsigned int)(image.sections[i].base_address + offset)));
    		}
    
    		free(buffer);
    	}
    
    	duration_stop_measure(&duration, &duration_text);
    	if (retval == ERROR_OK)
    	{
    		command_print(cmd_ctx, "Loaded %u bytes in %s", (unsigned int)image_size, duration_text);
    		command_print(cmd_ctx, "NB!!! image has not been loaded to target, issue a subsequent 'fast_load' to do so.");
    	}
    	free(duration_text);
    
    	image_close(&image);
    
    	if (retval != ERROR_OK)
    	{
    		free_fastload();
    	}
    
    	return retval;
    }
    
    static int handle_fast_load_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
    {
    	if (argc > 0)
    		return ERROR_COMMAND_SYNTAX_ERROR;
    	if (fastload == NULL)
    	{
    		LOG_ERROR("No image in memory");
    		return ERROR_FAIL;
    	}
    	int i;
    	int ms = timeval_ms();
    	int size = 0;
    	int retval = ERROR_OK;
    	for (i = 0; i < fastload_num;i++)
    	{
    		target_t *target = get_current_target(cmd_ctx);
    		command_print(cmd_ctx, "Write to 0x%08x, length 0x%08x",
    					  (unsigned int)(fastload[i].address),
    					  (unsigned int)(fastload[i].length));
    		if (retval == ERROR_OK)
    		{
    			retval = target_write_buffer(target, fastload[i].address, fastload[i].length, fastload[i].data);
    		}
    		size += fastload[i].length;
    	}
    	int after = timeval_ms();
    	command_print(cmd_ctx, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
    	return retval;
    }
    
    
    /*
     * Local Variables:
     * c-basic-offset: 4
     * tab-width: 4
     * End:
     */