diff options
| author | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-09-25 14:49:47 +0000 |
|---|---|---|
| committer | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-09-25 14:49:47 +0000 |
| commit | 387a8fe505dd733968a798c9d3b88fbdd5f93056 (patch) | |
| tree | 237699e955b70f6b6428c4f62c25fb129015d10f /target-mips/helper.c | |
| parent | b570094d9bb19e59618902d825da6d2899b8d295 (diff) | |
Optimise instructions accessing CP0, by Aurelien Jarno.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3235 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-mips/helper.c')
| -rw-r--r-- | target-mips/helper.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/target-mips/helper.c b/target-mips/helper.c index d0e5b1d481..5c19a7ca4a 100644 --- a/target-mips/helper.c +++ b/target-mips/helper.c @@ -371,6 +371,7 @@ void do_interrupt (CPUState *env) env->hflags |= MIPS_HFLAG_DM; env->hflags |= MIPS_HFLAG_64; env->hflags &= ~MIPS_HFLAG_UM; + env->hflags |= MIPS_HFLAG_CP0; /* EJTAG probe trap enable is not implemented... */ if (!(env->CP0_Status & (1 << CP0St_EXL))) env->CP0_Cause &= ~(1 << CP0Ca_BD); @@ -397,6 +398,7 @@ void do_interrupt (CPUState *env) env->CP0_Status |= (1 << CP0St_ERL) | (1 << CP0St_BEV); env->hflags |= MIPS_HFLAG_64; env->hflags &= ~MIPS_HFLAG_UM; + env->hflags |= MIPS_HFLAG_CP0; if (!(env->CP0_Status & (1 << CP0St_EXL))) env->CP0_Cause &= ~(1 << CP0Ca_BD); env->PC[env->current_tc] = (int32_t)0xBFC00000; @@ -499,6 +501,7 @@ void do_interrupt (CPUState *env) env->CP0_Status |= (1 << CP0St_EXL); env->hflags |= MIPS_HFLAG_64; env->hflags &= ~MIPS_HFLAG_UM; + env->hflags |= MIPS_HFLAG_CP0; } env->hflags &= ~MIPS_HFLAG_BMASK; if (env->CP0_Status & (1 << CP0St_BEV)) { |