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| author | Nathan Froyd <froydnj@codesourcery.com> | 2009-07-01 10:52:22 -0700 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2009-07-03 03:28:20 +0200 |
| commit | 98070ce00f1561bb244c366b2cb76c4b4f7c2de1 (patch) | |
| tree | cfd8c1d506792ac385466f82b06f2f4176bd69d2 | |
| parent | 7d69c52ed8939b036fbd31488f9c7b4f5d7b8208 (diff) | |
| download | qemu-98070ce00f1561bb244c366b2cb76c4b4f7c2de1.tar.gz qemu-98070ce00f1561bb244c366b2cb76c4b4f7c2de1.tar.bz2 qemu-98070ce00f1561bb244c366b2cb76c4b4f7c2de1.zip | |
target-mips: fix MADD and MSUB/MSUBU instructions
MADD was not correctly writing to HI.
MSUB/MSUBU are specified as `HI||LO - product', not `product - HI||LO'.
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
| -rw-r--r-- | target-mips/translate.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index 6f5bea4b04..d316b9d1e4 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -2132,7 +2132,7 @@ static void gen_muldiv (DisasContext *ctx, uint32_t opc, tcg_gen_trunc_i64_tl(t1, t2); tcg_temp_free_i64(t2); tcg_gen_ext32s_tl(cpu_LO[0], t0); - tcg_gen_ext32s_tl(cpu_LO[1], t1); + tcg_gen_ext32s_tl(cpu_HI[0], t1); } opn = "madd"; break; @@ -2167,7 +2167,7 @@ static void gen_muldiv (DisasContext *ctx, uint32_t opc, tcg_gen_ext_tl_i64(t3, t1); tcg_gen_mul_i64(t2, t2, t3); tcg_gen_concat_tl_i64(t3, cpu_LO[0], cpu_HI[0]); - tcg_gen_sub_i64(t2, t2, t3); + tcg_gen_sub_i64(t2, t3, t2); tcg_temp_free_i64(t3); tcg_gen_trunc_i64_tl(t0, t2); tcg_gen_shri_i64(t2, t2, 32); @@ -2189,7 +2189,7 @@ static void gen_muldiv (DisasContext *ctx, uint32_t opc, tcg_gen_extu_tl_i64(t3, t1); tcg_gen_mul_i64(t2, t2, t3); tcg_gen_concat_tl_i64(t3, cpu_LO[0], cpu_HI[0]); - tcg_gen_sub_i64(t2, t2, t3); + tcg_gen_sub_i64(t2, t3, t2); tcg_temp_free_i64(t3); tcg_gen_trunc_i64_tl(t0, t2); tcg_gen_shri_i64(t2, t2, 32); |