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| author | Richard Sandiford <rdsandiford@googlemail.com> | 2011-11-26 03:37:07 +0000 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2012-05-19 15:51:44 +0000 |
| commit | d7f66b52dee3dd7423a28c0ceb600aec388859cb (patch) | |
| tree | bff8fc00c7de231033cd174ffb4e56d31c36139f | |
| parent | 77a8f1a5125457d845fac6aa0c2e1e2681d94f07 (diff) | |
| download | qemu-d7f66b52dee3dd7423a28c0ceb600aec388859cb.zip qemu-d7f66b52dee3dd7423a28c0ceb600aec388859cb.tar.gz qemu-d7f66b52dee3dd7423a28c0ceb600aec388859cb.tar.bz2 | |
mips: Fix BC1ANY[24]F instructions
There's some dodgy application of De Morgan's law in the emulation
of the MIPS BC1ANY[24]F instructions: they end up branching only
if all CCs are false, rather than if one CC is.
Tested on mips64-linux-gnu, where it fixes the GCC MIPS3D tests.
Signed-off-by: Richard Sandiford <rdsandiford@googlemail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
| -rw-r--r-- | target-mips/translate.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index f5297b0..0c563ee 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -6099,7 +6099,7 @@ static void gen_compute_branch1 (CPUMIPSState *env, DisasContext *ctx, uint32_t TCGv_i32 t1 = tcg_temp_new_i32(); tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc)); tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+1)); - tcg_gen_nor_i32(t0, t0, t1); + tcg_gen_nand_i32(t0, t0, t1); tcg_temp_free_i32(t1); tcg_gen_andi_i32(t0, t0, 1); tcg_gen_extu_i32_tl(bcond, t0); @@ -6123,11 +6123,11 @@ static void gen_compute_branch1 (CPUMIPSState *env, DisasContext *ctx, uint32_t TCGv_i32 t1 = tcg_temp_new_i32(); tcg_gen_shri_i32(t0, fpu_fcr31, get_fp_bit(cc)); tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+1)); - tcg_gen_or_i32(t0, t0, t1); + tcg_gen_and_i32(t0, t0, t1); tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+2)); - tcg_gen_or_i32(t0, t0, t1); + tcg_gen_and_i32(t0, t0, t1); tcg_gen_shri_i32(t1, fpu_fcr31, get_fp_bit(cc+3)); - tcg_gen_nor_i32(t0, t0, t1); + tcg_gen_nand_i32(t0, t0, t1); tcg_temp_free_i32(t1); tcg_gen_andi_i32(t0, t0, 1); tcg_gen_extu_i32_tl(bcond, t0); |