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[Qemu-devel] [PATCH v2 5/5] target-m68k: add fscale, fgetman and fgetexp
From: |
Laurent Vivier |
Subject: |
[Qemu-devel] [PATCH v2 5/5] target-m68k: add fscale, fgetman and fgetexp |
Date: |
Thu, 23 Nov 2017 17:35:38 +0100 |
using floatx80_scale(), floatx80_getman() and
floatx80_getexp()
Signed-off-by: Laurent Vivier <address@hidden>
---
target/m68k/fpu_helper.c | 15 +++++++++++++++
target/m68k/helper.h | 3 +++
target/m68k/translate.c | 9 +++++++++
3 files changed, 27 insertions(+)
diff --git a/target/m68k/fpu_helper.c b/target/m68k/fpu_helper.c
index dd8b6950d6..6be2b90eba 100644
--- a/target/m68k/fpu_helper.c
+++ b/target/m68k/fpu_helper.c
@@ -541,3 +541,18 @@ void HELPER(frem)(CPUM68KState *env, FPReg *res, FPReg
*val0, FPReg *val1)
make_quotient(env, res->d);
}
+
+void HELPER(fgetexp)(CPUM68KState *env, FPReg *res, FPReg *val)
+{
+ res->d = floatx80_getexp(val->d, &env->fp_status);
+}
+
+void HELPER(fgetman)(CPUM68KState *env, FPReg *res, FPReg *val)
+{
+ res->d = floatx80_getman(val->d, &env->fp_status);
+}
+
+void HELPER(fscale)(CPUM68KState *env, FPReg *res, FPReg *val0, FPReg *val1)
+{
+ res->d = floatx80_scale(val1->d, val0->d, &env->fp_status);
+}
diff --git a/target/m68k/helper.h b/target/m68k/helper.h
index ff9d99ae27..ccdda73187 100644
--- a/target/m68k/helper.h
+++ b/target/m68k/helper.h
@@ -63,6 +63,9 @@ DEF_HELPER_3(fmovemd_st_postinc, i32, env, i32, i32)
DEF_HELPER_3(fmovemd_ld_postinc, i32, env, i32, i32)
DEF_HELPER_4(fmod, void, env, fp, fp, fp)
DEF_HELPER_4(frem, void, env, fp, fp, fp)
+DEF_HELPER_3(fgetexp, void, env, fp, fp)
+DEF_HELPER_3(fgetman, void, env, fp, fp)
+DEF_HELPER_4(fscale, void, env, fp, fp, fp)
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 66f873899f..c0c2e8c757 100644
--- a/target/m68k/translate.c
+++ b/target/m68k/translate.c
@@ -4677,6 +4677,12 @@ DISAS_INSN(fpu)
case 0x5e: /* fdneg */
gen_helper_fdneg(cpu_env, cpu_dest, cpu_src);
break;
+ case 0x1e: /* fgetexp */
+ gen_helper_fgetexp(cpu_env, cpu_dest, cpu_src);
+ break;
+ case 0x1f: /* fgetman */
+ gen_helper_fgetman(cpu_env, cpu_dest, cpu_src);
+ break;
case 0x20: /* fdiv */
gen_helper_fdiv(cpu_env, cpu_dest, cpu_src, cpu_dest);
break;
@@ -4713,6 +4719,9 @@ DISAS_INSN(fpu)
case 0x25: /* frem */
gen_helper_frem(cpu_env, cpu_dest, cpu_src, cpu_dest);
break;
+ case 0x26: /* fscale */
+ gen_helper_fscale(cpu_env, cpu_dest, cpu_src, cpu_dest);
+ break;
case 0x27: /* fsglmul */
gen_helper_fsglmul(cpu_env, cpu_dest, cpu_src, cpu_dest);
break;
--
2.13.6
- [Qemu-devel] [PATCH v2 0/5] target/m68k: implement 680x0 FPU (part 3), Laurent Vivier, 2017/11/23
- [Qemu-devel] [PATCH v2 2/5] target/m68k: add fmod/frem, Laurent Vivier, 2017/11/23
- [Qemu-devel] [PATCH v2 3/5] softfloat: use floatx80_infinity in softfloat, Laurent Vivier, 2017/11/23
- [Qemu-devel] [PATCH v2 4/5] softfloat: add floatx80_getman(), floatx80_getexp(), floatx80_scale(), Laurent Vivier, 2017/11/23
- [Qemu-devel] [PATCH v2 5/5] target-m68k: add fscale, fgetman and fgetexp,
Laurent Vivier <=
- [Qemu-devel] [PATCH v2 1/5] softfloat: add floatx80_mod(), Laurent Vivier, 2017/11/23
- Re: [Qemu-devel] [PATCH v2 0/5] target/m68k: implement 680x0 FPU (part 3), Peter Maydell, 2017/11/29