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| author | Igor V. Kovalenko <igor.v.kovalenko@gmail.com> | 2009-09-23 23:39:51 +0400 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2009-09-23 20:00:24 +0000 |
| commit | 01b5d4e5cc509812a869843f65cb4728dea25be4 (patch) | |
| tree | c381fe4a58c14fe73f70465d5fac77b0e60a96a4 /target-sparc/translate.c | |
| parent | d42320c26a4106b096cf07af5e19727c159c09a7 (diff) | |
| download | hqemu-01b5d4e5cc509812a869843f65cb4728dea25be4.zip hqemu-01b5d4e5cc509812a869843f65cb4728dea25be4.tar.gz | |
sparc64-8bit-asi
Sparc64 alternate space load/store helpers expect 8 bit ASI value,
while wrasi implementation sign-extends ASI operand causing
for example 0x80 to appear as 0xFFFFFF80. Resulting value falls
out of switch in helpers and causes obscure load/store faults.
- correct wrasi by masking lower 8 bits of xor result
- use lower 8 bits of ASI register in helpers
Signed-off-by: Igor V. Kovalenko <igor.v.kovalenko@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'target-sparc/translate.c')
| -rw-r--r-- | target-sparc/translate.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/target-sparc/translate.c b/target-sparc/translate.c index 928aa61..bf6df50 100644 --- a/target-sparc/translate.c +++ b/target-sparc/translate.c @@ -3152,6 +3152,7 @@ static void disas_sparc_insn(DisasContext * dc) break; case 0x3: /* V9 wrasi */ tcg_gen_xor_tl(cpu_dst, cpu_src1, cpu_src2); + tcg_gen_andi_tl(cpu_dst, cpu_dst, 0xff); tcg_gen_trunc_tl_i32(cpu_asi, cpu_dst); break; case 0x6: /* V9 wrfprs */ |
