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 <laurent@vivier.eu>
---
 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

On 02/07/2017 11:59 AM, Laurent Vivier wrote:
> +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;
> +}

This doesn't work except for x86 host.

You ought to extract the mantissa, convert the 64-bit value to long-double, and 
use ldexpl to scale the result for the exponent.

Similarly converting the other way use frexpl and ldexpl.


r~