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[Qemu-devel] [PATCH v3 15/16] target-m68k: add more FPU instructions
From: |
Laurent Vivier |
Subject: |
[Qemu-devel] [PATCH v3 15/16] target-m68k: add more FPU instructions |
Date: |
Tue, 7 Feb 2017 01:59:29 +0100 |
Add fsinh, flognp1, ftanh, fatan, fasin, fatanh,
fsin, ftan, fetox, ftwotox, ftentox, flogn, flog10, facos,
fcos.
As softfloat library does not provide these functions,
we us the libm of the host.
Signed-off-by: Laurent Vivier <address@hidden>
---
target/m68k/fpu_helper.c | 237 +++++++++++++++++++++++++++++++++++++++++++++++
target/m68k/helper.h | 16 ++++
target/m68k/translate.c | 48 ++++++++++
3 files changed, 301 insertions(+)
diff --git a/target/m68k/fpu_helper.c b/target/m68k/fpu_helper.c
index c69efe1..95d5cc4 100644
--- a/target/m68k/fpu_helper.c
+++ b/target/m68k/fpu_helper.c
@@ -23,6 +23,7 @@
#include "cpu.h"
#include "exec/helper-proto.h"
#include "exec/exec-all.h"
+#include <math.h>
static const floatx80 fpu_rom[128] = {
[0x00] = floatx80_pi, /* Pi */
@@ -712,3 +713,239 @@ void HELPER(mod_FP0_FP1)(CPUM68KState *env)
floatx80_to_FP0(env, res);
}
+
+static long double floatx80_to_ldouble(floatx80 val)
+{
+ if (floatx80_is_infinity(val)) {
+ if (floatx80_is_neg(val)) {
+ return -__builtin_infl();
+ }
+ return __builtin_infl();
+ }
+ if (floatx80_is_any_nan(val)) {
+ char low[20];
+ sprintf(low, "0x%016"PRIx64, val.low);
+
+ return nanl(low);
+ }
+
+ return *(long double *)&val;
+}
+
+static floatx80 ldouble_to_floatx80(long double val)
+{
+ floatx80 res;
+
+ if (isinf(val)) {
+ res.high = floatx80_default_nan(NULL).high;
+ res.low = 0;
+ }
+ if (isinf(val) < 0) {
+ res.high |= 0x8000;
+ }
+ if (isnan(val)) {
+ res.high = floatx80_default_nan(NULL).high;
+ res.low = *(uint64_t *)((char *)&val + 4);
+ }
+ return *(floatx80 *)&val;
+}
+
+void HELPER(sinh_FP0)(CPUM68KState *env)
+{
+ floatx80 res;
+ long double val;
+
+ val = sinhl(floatx80_to_ldouble(FP0_to_floatx80(env)));
+ res = ldouble_to_floatx80(val);
+
+ floatx80_to_FP0(env, res);
+}
+
+void HELPER(lognp1_FP0)(CPUM68KState *env)
+{
+ floatx80 val;
+ long double res;
+
+ val = FP0_to_floatx80(env);
+ res = logl(floatx80_to_ldouble(val) + 1.0);
+
+ floatx80_to_FP0(env, ldouble_to_floatx80(res));
+}
+
+void HELPER(ln_FP0)(CPUM68KState *env)
+{
+ floatx80 val;
+ long double res;
+
+ val = FP0_to_floatx80(env);
+ res = logl(floatx80_to_ldouble(val));
+
+ floatx80_to_FP0(env, ldouble_to_floatx80(res));
+}
+
+void HELPER(log10_FP0)(CPUM68KState *env)
+{
+ floatx80 val;
+ long double res;
+
+ val = FP0_to_floatx80(env);
+ res = log10l(floatx80_to_ldouble(val));
+
+ floatx80_to_FP0(env, ldouble_to_floatx80(res));
+}
+
+void HELPER(atan_FP0)(CPUM68KState *env)
+{
+ floatx80 res;
+ long double val;
+
+ val = floatx80_to_ldouble(FP0_to_floatx80(env));
+
+ val = atanl(val);
+ res = ldouble_to_floatx80(val);
+ floatx80_to_FP0(env, res);
+}
+
+void HELPER(asin_FP0)(CPUM68KState *env)
+{
+ floatx80 res;
+ long double val;
+
+ val = floatx80_to_ldouble(FP0_to_floatx80(env));
+ if (val < -1.0 || val > 1.0) {
+ floatx80_to_FP0(env, floatx80_default_nan(NULL));
+ return;
+ }
+
+ val = asinl(val);
+ res = ldouble_to_floatx80(val);
+ floatx80_to_FP0(env, res);
+}
+
+void HELPER(atanh_FP0)(CPUM68KState *env)
+{
+ floatx80 res;
+ long double val;
+
+ val = floatx80_to_ldouble(FP0_to_floatx80(env));
+ if (val < -1.0 || val > 1.0) {
+ floatx80_to_FP0(env, floatx80_default_nan(NULL));
+ return;
+ }
+
+ val = atanhl(val);
+ res = ldouble_to_floatx80(val);
+ floatx80_to_FP0(env, res);
+}
+
+void HELPER(sin_FP0)(CPUM68KState *env)
+{
+ floatx80 res;
+ long double val;
+
+ val = floatx80_to_ldouble(FP0_to_floatx80(env));
+
+ val = sinl(val);
+ res = ldouble_to_floatx80(val);
+ floatx80_to_FP0(env, res);
+}
+
+void HELPER(tanh_FP0)(CPUM68KState *env)
+{
+ floatx80 res;
+ long double val;
+
+ val = floatx80_to_ldouble(FP0_to_floatx80(env));
+
+ val = tanhl(val);
+ res = ldouble_to_floatx80(val);
+ floatx80_to_FP0(env, res);
+}
+
+void HELPER(tan_FP0)(CPUM68KState *env)
+{
+ floatx80 res;
+ long double val;
+
+ val = floatx80_to_ldouble(FP0_to_floatx80(env));
+
+ val = tanl(val);
+ res = ldouble_to_floatx80(val);
+ floatx80_to_FP0(env, res);
+}
+
+void HELPER(exp_FP0)(CPUM68KState *env)
+{
+ floatx80 f;
+ long double res;
+
+ f = FP0_to_floatx80(env);
+
+ res = expl(floatx80_to_ldouble(f));
+
+ floatx80_to_FP0(env, ldouble_to_floatx80(res));
+}
+
+void HELPER(exp2_FP0)(CPUM68KState *env)
+{
+ floatx80 f;
+ long double res;
+
+ f = FP0_to_floatx80(env);
+
+ res = exp2l(floatx80_to_ldouble(f));
+
+ floatx80_to_FP0(env, ldouble_to_floatx80(res));
+}
+
+void HELPER(exp10_FP0)(CPUM68KState *env)
+{
+ floatx80 res;
+ long double val;
+
+ val = floatx80_to_ldouble(FP0_to_floatx80(env));
+
+ val = exp10l(val);
+ res = ldouble_to_floatx80(val);
+ floatx80_to_FP0(env, res);
+}
+
+void HELPER(cosh_FP0)(CPUM68KState *env)
+{
+ floatx80 res;
+ long double val;
+
+ val = floatx80_to_ldouble(FP0_to_floatx80(env));
+
+ val = coshl(val);
+ res = ldouble_to_floatx80(val);
+ floatx80_to_FP0(env, res);
+}
+
+void HELPER(acos_FP0)(CPUM68KState *env)
+{
+ floatx80 res;
+ long double val;
+
+ val = floatx80_to_ldouble(FP0_to_floatx80(env));
+ if (val < -1.0 || val > 1.0) {
+ floatx80_to_FP0(env, floatx80_default_nan(NULL));
+ return;
+ }
+
+ val = acosl(val);
+ res = ldouble_to_floatx80(val);
+ floatx80_to_FP0(env, res);
+}
+
+void HELPER(cos_FP0)(CPUM68KState *env)
+{
+ floatx80 res;
+ long double val;
+
+ val = floatx80_to_ldouble(FP0_to_floatx80(env));
+
+ val = cosl(val);
+ res = ldouble_to_floatx80(val);
+ floatx80_to_FP0(env, res);
+}
diff --git a/target/m68k/helper.h b/target/m68k/helper.h
index 07aa04f..600a9a6 100644
--- a/target/m68k/helper.h
+++ b/target/m68k/helper.h
@@ -53,6 +53,22 @@ DEF_HELPER_1(getexp_FP0, void, env)
DEF_HELPER_1(getman_FP0, void, env)
DEF_HELPER_1(scale_FP0_FP1, void, env)
DEF_HELPER_1(mod_FP0_FP1, void, env)
+DEF_HELPER_1(sinh_FP0, void, env)
+DEF_HELPER_1(lognp1_FP0, void, env)
+DEF_HELPER_1(atan_FP0, void, env)
+DEF_HELPER_1(asin_FP0, void, env)
+DEF_HELPER_1(atanh_FP0, void, env)
+DEF_HELPER_1(sin_FP0, void, env)
+DEF_HELPER_1(tanh_FP0, void, env)
+DEF_HELPER_1(tan_FP0, void, env)
+DEF_HELPER_1(exp_FP0, void, env)
+DEF_HELPER_1(exp2_FP0, void, env)
+DEF_HELPER_1(exp10_FP0, void, env)
+DEF_HELPER_1(ln_FP0, void, env)
+DEF_HELPER_1(log10_FP0, void, env)
+DEF_HELPER_1(cosh_FP0, void, env)
+DEF_HELPER_1(acos_FP0, void, env)
+DEF_HELPER_1(cos_FP0, void, env)
DEF_HELPER_3(mac_move, void, env, i32, i32)
DEF_HELPER_3(macmulf, i64, env, i32, i32)
diff --git a/target/m68k/translate.c b/target/m68k/translate.c
index 883f4ff..7af88a2 100644
--- a/target/m68k/translate.c
+++ b/target/m68k/translate.c
@@ -4625,6 +4625,9 @@ DISAS_INSN(fpu)
case 1: /* fint */
gen_helper_iround_FP0(cpu_env);
break;
+ case 2: /* fsinh */
+ gen_helper_sinh_FP0(cpu_env);
+ break;
case 3: /* fintrz */
gen_helper_itrunc_FP0(cpu_env);
break;
@@ -4637,6 +4640,42 @@ DISAS_INSN(fpu)
case 0x45: /* fdsqrt */
gen_helper_dsqrt_FP0(cpu_env);
break;
+ case 0x06: /* flognp1 */
+ gen_helper_lognp1_FP0(cpu_env);
+ break;
+ case 0x09: /* ftanh */
+ gen_helper_tanh_FP0(cpu_env);
+ break;
+ case 0x0a: /* fatan */
+ gen_helper_atan_FP0(cpu_env);
+ break;
+ case 0x0c: /* fasin */
+ gen_helper_asin_FP0(cpu_env);
+ break;
+ case 0x0d: /* fatanh */
+ gen_helper_atanh_FP0(cpu_env);
+ break;
+ case 0x0e: /* fsin */
+ gen_helper_sin_FP0(cpu_env);
+ break;
+ case 0x0f: /* ftan */
+ gen_helper_tan_FP0(cpu_env);
+ break;
+ case 0x10: /* fetox */
+ gen_helper_exp_FP0(cpu_env);
+ break;
+ case 0x11: /* ftwotox */
+ gen_helper_exp2_FP0(cpu_env);
+ break;
+ case 0x12: /* ftentox */
+ gen_helper_exp10_FP0(cpu_env);
+ break;
+ case 0x14: /* flogn */
+ gen_helper_ln_FP0(cpu_env);
+ break;
+ case 0x15: /* flog10 */
+ gen_helper_log10_FP0(cpu_env);
+ break;
case 0x18: /* fabs */
gen_helper_abs_FP0(cpu_env);
break;
@@ -4646,6 +4685,9 @@ DISAS_INSN(fpu)
case 0x5c: /* fdabs */
gen_helper_dabs_FP0(cpu_env);
break;
+ case 0x19: /* fcosh */
+ gen_helper_cosh_FP0(cpu_env);
+ break;
case 0x1a: /* fneg */
gen_helper_neg_FP0(cpu_env);
break;
@@ -4655,6 +4697,12 @@ DISAS_INSN(fpu)
case 0x5e: /* fdneg */
gen_helper_dneg_FP0(cpu_env);
break;
+ case 0x1c: /* facos */
+ gen_helper_acos_FP0(cpu_env);
+ break;
+ case 0x1d: /* fcos */
+ gen_helper_cos_FP0(cpu_env);
+ break;
case 0x1e: /* fgetexp */
gen_helper_getexp_FP0(cpu_env);
break;
--
2.9.3
- Re: [Qemu-devel] [PATCH v3 06/16] target-m68k: add FPCR and FPSR, (continued)
- [Qemu-devel] [PATCH v3 09/16] target-m68k: add fmovem, Laurent Vivier, 2017/02/06
- [Qemu-devel] [PATCH v3 11/16] target-m68k: add fmovecr, Laurent Vivier, 2017/02/06
- [Qemu-devel] [PATCH v3 12/16] target-m68k: add fscale, fgetman, fgetexp and fmod, Laurent Vivier, 2017/02/06
- [Qemu-devel] [PATCH v3 05/16] target-m68k: use floatx80 internally, Laurent Vivier, 2017/02/06
- [Qemu-devel] [PATCH v3 16/16] target-m68k: add fsincos, Laurent Vivier, 2017/02/06
- [Qemu-devel] [PATCH v3 15/16] target-m68k: add more FPU instructions,
Laurent Vivier <=
[Qemu-devel] [PATCH v3 13/16] target-m68k: add fsglmul and fsgldiv, Laurent Vivier, 2017/02/06
[Qemu-devel] [PATCH v3 14/16] target-m68k: add explicit single and double precision operations, Laurent Vivier, 2017/02/06
[Qemu-devel] [PATCH v3 07/16] target-m68k: manage FPU exceptions, Laurent Vivier, 2017/02/06