[Qemu-devel] [PATCH 106/111] m68k: add ftanh instruction

[Bryce Lanham]

From: Laurent Vivier <address@hidden>

Signed-off-by: Laurent Vivier <address@hidden>
---
 target-m68k/helper.c    |   15 +++++++++++++++
 target-m68k/helpers.h   |    1 +
 target-m68k/translate.c |    3 +++
 3 files changed, 19 insertions(+), 0 deletions(-)

diff --git a/target-m68k/helper.c b/target-m68k/helper.c
index fc1b560..9269b48 100644
--- a/target-m68k/helper.c
+++ b/target-m68k/helper.c
@@ -1445,6 +1445,21 @@ void HELPER(sin_FP0)(CPUState *env)
     floatx80_to_FP0(env, res);
 }
 
+void HELPER(tanh_FP0)(CPUState *env)
+{
+    floatx80 res;
+    long double val;
+
+    res = FP0_to_floatx80(env);
+    val = floatx80_to_ldouble(res);
+
+    DBG_FPUH("tanh_FP0 %Lg", val);
+    val = tanhl(val);
+    DBG_FPU(" = %Lg", val);
+    res = ldouble_to_floatx80(val);
+    floatx80_to_FP0(env, res);
+}
+
 void HELPER(tan_FP0)(CPUState *env)
 {
     floatx80 res;
diff --git a/target-m68k/helpers.h b/target-m68k/helpers.h
index e77b9b7..3c8fc60 100644
--- a/target-m68k/helpers.h
+++ b/target-m68k/helpers.h
@@ -69,6 +69,7 @@ DEF_HELPER_1(sqrt_FP0, void, env)
 DEF_HELPER_1(atan_FP0, void, env)
 DEF_HELPER_1(asin_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)
diff --git a/target-m68k/translate.c b/target-m68k/translate.c
index c43bfe8..26ab027 100644
--- a/target-m68k/translate.c
+++ b/target-m68k/translate.c
@@ -3737,6 +3737,9 @@ DISAS_INSN(fpu)
     case 4: case 0x41: case 0x45: /* fsqrt */
         gen_helper_sqrt_FP0(cpu_env);
         break;
+    case 0x09:                       /* ftanh */
+        gen_helper_tanh_FP0(cpu_env);
+        break;
     case 0x0a:                       /* fatan */
         gen_helper_atan_FP0(cpu_env);
         break;
-- 
1.7.2.3