diff --git a/lib/libm/asinfacosf.c b/lib/libm/asinfacosf.c
new file mode 100644
index 0000000000000000000000000000000000000000..07ecad3f3fdcc46028ab482592cafa1ada19030d
--- /dev/null
+++ b/lib/libm/asinfacosf.c
@@ -0,0 +1,130 @@
+/*****************************************************************************/
+/*****************************************************************************/
+// asinf from musl-0.9.15
+/*****************************************************************************/
+/*****************************************************************************/
+
+/* origin: FreeBSD /usr/src/lib/msun/src/e_asinf.c */
+/*
+ * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
+ */
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#include "libm.h"
+
+// dpgeorge: pio2 was double in original implementation of asinf
+static const float
+pio2_hi = 1.5707962513e+00, /* 0x3fc90fda */
+pio2_lo = 7.5497894159e-08; /* 0x33a22168 */
+
+static const float
+/* coefficients for R(x^2) */
+pS0 = 1.6666586697e-01,
+pS1 = -4.2743422091e-02,
+pS2 = -8.6563630030e-03,
+qS1 = -7.0662963390e-01;
+
+static float R(float z)
+{
+ float_t p, q;
+ p = z*(pS0+z*(pS1+z*pS2));
+ q = 1.0f+z*qS1;
+ return p/q;
+}
+
+float asinf(float x)
+{
+ // dpgeorge: s was double in original implementation
+ float s,z;
+ uint32_t hx,ix;
+
+ GET_FLOAT_WORD(hx, x);
+ ix = hx & 0x7fffffff;
+ if (ix >= 0x3f800000) { /* |x| >= 1 */
+ if (ix == 0x3f800000) /* |x| == 1 */
+ return x*pio2_hi + 0x1p-120f; /* asin(+-1) = +-pi/2 with inexact */
+ return 0/(x-x); /* asin(|x|>1) is NaN */
+ }
+ if (ix < 0x3f000000) { /* |x| < 0.5 */
+ /* if 0x1p-126 <= |x| < 0x1p-12, avoid raising underflow */
+ if (ix < 0x39800000 && ix >= 0x00800000)
+ return x;
+ return x + x*R(x*x);
+ }
+ /* 1 > |x| >= 0.5 */
+ z = (1 - fabsf(x))*0.5f;
+ s = sqrtf(z);
+ x = pio2_hi - (2*(s+s*R(z)) - pio2_lo); // dpgeorge: use pio2_hi and pio2_lo
+ if (hx >> 31)
+ return -x;
+ return x;
+}
+
+/*****************************************************************************/
+/*****************************************************************************/
+// acosf from musl-0.9.15
+/*****************************************************************************/
+/*****************************************************************************/
+
+/* origin: FreeBSD /usr/src/lib/msun/src/e_acosf.c */
+/*
+ * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
+ */
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+float acosf(float x)
+{
+ float z,w,s,c,df;
+ uint32_t hx,ix;
+
+ GET_FLOAT_WORD(hx, x);
+ ix = hx & 0x7fffffff;
+ /* |x| >= 1 or nan */
+ if (ix >= 0x3f800000) {
+ if (ix == 0x3f800000) {
+ if (hx >> 31)
+ return 2*pio2_hi + 0x1p-120f;
+ return 0;
+ }
+ return 0/(x-x);
+ }
+ /* |x| < 0.5 */
+ if (ix < 0x3f000000) {
+ if (ix <= 0x32800000) /* |x| < 2**-26 */
+ return pio2_hi + 0x1p-120f;
+ return pio2_hi - (x - (pio2_lo-x*R(x*x)));
+ }
+ /* x < -0.5 */
+ if (hx >> 31) {
+ z = (1+x)*0.5f;
+ s = sqrtf(z);
+ w = R(z)*s-pio2_lo;
+ return 2*(pio2_hi - (s+w));
+ }
+ /* x > 0.5 */
+ z = (1-x)*0.5f;
+ s = sqrtf(z);
+ GET_FLOAT_WORD(hx,s);
+ SET_FLOAT_WORD(df,hx&0xfffff000);
+ c = (z-df*df)/(s+df);
+ w = R(z)*s+c;
+ return 2*(df+w);
+}
diff --git a/lib/libm/math.c b/lib/libm/math.c
index 23218fe56b0b1543354cb369a63ef6315c1138c7..07a563e58c3bfa81322a5718239875e6eb194a2b 100644
--- a/lib/libm/math.c
+++ b/lib/libm/math.c
@@ -117,8 +117,6 @@ float acoshf(float x) { return 0.0; }
float asinhf(float x) { return 0.0; }
float atanhf(float x) { return 0.0; }
float tanf(float x) { return 0.0; }
-float acosf(float x) { return 0.0; }
-float asinf(float x) { return 0.0; }
float fmodf(float x, float y) { return 0.0; }
float tgammaf(float x) { return 0.0; }
float lgammaf(float x) { return 0.0; }
diff --git a/py/objcomplex.c b/py/objcomplex.c
index 8e0f638c3e3660c5af4000cef77678a2d27838cb..2768a01e65524b0ccfa8113c500d15f5280a055b 100644
--- a/py/objcomplex.c
+++ b/py/objcomplex.c
@@ -25,6 +25,7 @@
*/
#include <stdlib.h>
+#include <stdio.h>
#include <assert.h>
#include "mpconfig.h"
@@ -55,21 +56,26 @@ mp_obj_t mp_obj_new_complex(mp_float_t real, mp_float_t imag);
STATIC void complex_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t o_in, mp_print_kind_t kind) {
mp_obj_complex_t *o = o_in;
#if MICROPY_FLOAT_IMPL == MICROPY_FLOAT_IMPL_FLOAT
- char buf[32];
+ char buf[16];
if (o->real == 0) {
- format_float(o->imag, buf, sizeof(buf), 'g', 6, '\0');
+ format_float(o->imag, buf, sizeof(buf), 'g', 7, '\0');
print(env, "%sj", buf);
} else {
- format_float(o->real, buf, sizeof(buf), 'g', 6, '\0');
+ format_float(o->real, buf, sizeof(buf), 'g', 7, '\0');
print(env, "(%s+", buf);
- format_float(o->imag, buf, sizeof(buf), 'g', 6, '\0');
+ format_float(o->imag, buf, sizeof(buf), 'g', 7, '\0');
print(env, "%sj)", buf);
}
#else
+ char buf[32];
if (o->real == 0) {
- print(env, "%.8gj", (double) o->imag);
+ sprintf(buf, "%.16g", (double)o->imag);
+ print(env, "%sj", buf);
} else {
- print(env, "(%.8g+%.8gj)", (double) o->real, (double) o->imag);
+ sprintf(buf, "%.16g", (double)o->real);
+ print(env, "(%s+", buf);
+ sprintf(buf, "%.16g", (double)o->imag);
+ print(env, "%sj)", buf);
}
#endif
}
diff --git a/py/objfloat.c b/py/objfloat.c
index 52d484135fbb9292a6e48e026dde54427cf6c7c1..c6734ee780e7e38ad903e21fcfbf5664a9472aa9 100644
--- a/py/objfloat.c
+++ b/py/objfloat.c
@@ -48,18 +48,18 @@
STATIC void float_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t o_in, mp_print_kind_t kind) {
mp_obj_float_t *o = o_in;
#if MICROPY_FLOAT_IMPL == MICROPY_FLOAT_IMPL_FLOAT
- char buf[32];
- format_float(o->value, buf, sizeof(buf), 'g', 6, '\0');
+ char buf[16];
+ format_float(o->value, buf, sizeof(buf), 'g', 7, '\0');
print(env, "%s", buf);
- if (strchr(buf, '.') == NULL) {
+ if (strchr(buf, '.') == NULL && strchr(buf, 'e') == NULL) {
// Python floats always have decimal point
print(env, ".0");
}
#else
char buf[32];
- sprintf(buf, "%.17g", (double) o->value);
+ sprintf(buf, "%.16g", (double) o->value);
print(env, buf);
- if (strchr(buf, '.') == NULL) {
+ if (strchr(buf, '.') == NULL && strchr(buf, 'e') == NULL) {
// Python floats always have decimal point
print(env, ".0");
}
diff --git a/stmhal/Makefile b/stmhal/Makefile
index 3ae1805b17a6b0d2a38240fa549aefebb7caeed5..82d229b87322c926a8ab97c5f78115034f147d05 100644
--- a/stmhal/Makefile
+++ b/stmhal/Makefile
@@ -64,6 +64,7 @@ endif
SRC_LIB = $(addprefix lib/,\
libm/math.c \
libm/mathsincos.c \
+ libm/asinfacosf.c \
libm/atanf.c \
libm/atan2f.c \
)