[Qemu-devel] [PATCH 108/111] m68k: add fatanh instruction

[Bryce Lanham <blanham@gmail.com>]

From: Laurent Vivier <laurent@vivier.eu>

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 target-m68k/helper.c    |   15 +++++++++++++++
 target-m68k/helpers.h   |    1 +
 target-m68k/translate.c |    5 ++++-
 3 files changed, 20 insertions(+), 1 deletions(-)

diff --git a/target-m68k/helper.c b/target-m68k/helper.c
index f9a35d5..93a178a 100644
--- a/target-m68k/helper.c
+++ b/target-m68k/helper.c
@@ -1443,6 +1443,21 @@ void HELPER(asin_FP0)(CPUState *env)
     floatx80_to_FP0(env, res);
 }
 
+void HELPER(atanh_FP0)(CPUState *env)
+{
+    floatx80 res;
+    long double val;
+
+    res = FP0_to_floatx80(env);
+    val = floatx80_to_ldouble(res);
+
+    DBG_FPUH("atanh_FP0 %Lg", val);
+    val = atanhl(val);
+    DBG_FPU(" = %Lg", val);
+    res = ldouble_to_floatx80(val);
+    floatx80_to_FP0(env, res);
+}
+
 void HELPER(sin_FP0)(CPUState *env)
 {
     floatx80 res;
diff --git a/target-m68k/helpers.h b/target-m68k/helpers.h
index c043c54..373660e 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(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)
diff --git a/target-m68k/translate.c b/target-m68k/translate.c
index f4f10f4..71cbffb 100644
--- a/target-m68k/translate.c
+++ b/target-m68k/translate.c
@@ -3746,9 +3746,12 @@ DISAS_INSN(fpu)
     case 0x0a:                       /* fatan */
         gen_helper_atan_FP0(cpu_env);
         break;
-    case 0x0c:
+    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;
-- 
1.7.2.3