diff options
| author | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-08-26 17:37:23 +0000 |
|---|---|---|
| committer | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-08-26 17:37:23 +0000 |
| commit | 3ddf0b5cde7c741258487710c40f7318fdcd0f18 (patch) | |
| tree | e106e525e0477c3559ae68c90d28406e7c9890dc /target-mips/op.c | |
| parent | c92843b5dfc1e8f7baace9b7a4eac3e3231ac73e (diff) | |
Disable 64-bit instructions on 32-bit CPU, by Aurelien Jarno.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3146 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-mips/op.c')
| -rw-r--r-- | target-mips/op.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/target-mips/op.c b/target-mips/op.c index 4aa63e3463..12498d0335 100644 --- a/target-mips/op.c +++ b/target-mips/op.c @@ -1358,9 +1358,10 @@ void op_mtc0_status (void) (val & (1 << CP0St_UM))) env->hflags |= MIPS_HFLAG_UM; #ifdef TARGET_MIPS64 - if ((env->hflags & MIPS_HFLAG_UM) && + if (!(env->CP0_Config0 & (0x3 << CP0C0_AT)) || + ((env->hflags & MIPS_HFLAG_UM) && !(val & (1 << CP0St_PX)) && - !(val & (1 << CP0St_UX))) + !(val & (1 << CP0St_UX)))) env->hflags &= ~MIPS_HFLAG_64; #endif if (val & (1 << CP0St_CU1)) @@ -2318,9 +2319,10 @@ void op_eret (void) (env->CP0_Status & (1 << CP0St_UM))) env->hflags |= MIPS_HFLAG_UM; #ifdef TARGET_MIPS64 - if ((env->hflags & MIPS_HFLAG_UM) && + if (!(env->CP0_Config0 & (0x3 << CP0C0_AT)) || + ((env->hflags & MIPS_HFLAG_UM) && !(env->CP0_Status & (1 << CP0St_PX)) && - !(env->CP0_Status & (1 << CP0St_UX))) + !(env->CP0_Status & (1 << CP0St_UX)))) env->hflags &= ~MIPS_HFLAG_64; #endif if (loglevel & CPU_LOG_EXEC) @@ -2341,9 +2343,10 @@ void op_deret (void) (env->CP0_Status & (1 << CP0St_UM))) env->hflags |= MIPS_HFLAG_UM; #ifdef TARGET_MIPS64 - if ((env->hflags & MIPS_HFLAG_UM) && + if (!(env->CP0_Config0 & (0x3 << CP0C0_AT)) || + ((env->hflags & MIPS_HFLAG_UM) && !(env->CP0_Status & (1 << CP0St_PX)) && - !(env->CP0_Status & (1 << CP0St_UX))) + !(env->CP0_Status & (1 << CP0St_UX)))) env->hflags &= ~MIPS_HFLAG_64; #endif if (loglevel & CPU_LOG_EXEC) |