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Implement missing MIPS supervisor mode bits.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3472 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-10-28 19:45:05 +00:00
parent 8e129e0748
commit 623a930ec3
8 changed files with 51 additions and 37 deletions
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12
target-mips/exec.h
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@ -230,24 +230,20 @@ static always_inline int cpu_halted(CPUState *env)
static always_inline void compute_hflags(CPUState *env)
{
env->hflags &= ~(MIPS_HFLAG_64 | MIPS_HFLAG_CP0 | MIPS_HFLAG_F64 |
MIPS_HFLAG_FPU | MIPS_HFLAG_UM);
MIPS_HFLAG_FPU | MIPS_HFLAG_KSU);
if (!(env->CP0_Status & (1 << CP0St_EXL)) &&
!(env->CP0_Status & (1 << CP0St_ERL)) &&
!(env->hflags & MIPS_HFLAG_DM)) {
if (env->CP0_Status & (1 << CP0St_UM))
env->hflags |= MIPS_HFLAG_UM;
if (env->CP0_Status & (1 << CP0St_R0))
env->hflags |= MIPS_HFLAG_SM;
env->hflags |= (env->CP0_Status >> CP0St_KSU) & MIPS_HFLAG_KSU;
}
#if defined(TARGET_MIPSN32) || defined(TARGET_MIPS64)
if (!(env->hflags & MIPS_HFLAG_UM) ||
if (((env->hflags & MIPS_HFLAG_KSU) != MIPS_HFLAG_UM) ||
(env->CP0_Status & (1 << CP0St_PX)) ||
(env->CP0_Status & (1 << CP0St_UX)))
env->hflags |= MIPS_HFLAG_64;
#endif
if ((env->CP0_Status & (1 << CP0St_CU0)) ||
(!(env->hflags & MIPS_HFLAG_UM) &&
!(env->hflags & MIPS_HFLAG_SM)))
!(env->hflags & MIPS_HFLAG_KSU))
env->hflags |= MIPS_HFLAG_CP0;
if (env->CP0_Status & (1 << CP0St_CU1))
env->hflags |= MIPS_HFLAG_FPU;