diff options
Diffstat (limited to 'target-i386/helper.c')
| -rw-r--r-- | target-i386/helper.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/target-i386/helper.c b/target-i386/helper.c index d9c446ff61..ea2ef5e027 100644 --- a/target-i386/helper.c +++ b/target-i386/helper.c @@ -1454,7 +1454,11 @@ void load_seg(int seg_reg, int selector) selector &= 0xffff; if ((selector & 0xfffc) == 0) { /* null selector case */ - if (seg_reg == R_SS) + if (seg_reg == R_SS +#ifdef TARGET_X86_64 + && !(env->hflags & HF_CS64_MASK) +#endif + ) raise_exception_err(EXCP0D_GPF, 0); cpu_x86_load_seg_cache(env, seg_reg, selector, 0, 0, 0); } else { @@ -2146,6 +2150,7 @@ void helper_sysexit(void) void helper_movl_crN_T0(int reg) { +#if !defined(CONFIG_USER_ONLY) switch(reg) { case 0: cpu_x86_update_cr0(env, T0); @@ -2156,10 +2161,14 @@ void helper_movl_crN_T0(int reg) case 4: cpu_x86_update_cr4(env, T0); break; + case 8: + cpu_set_apic_tpr(env, T0); + break; default: env->cr[reg] = T0; break; } +#endif } /* XXX: do more */ @@ -3227,6 +3236,25 @@ float approx_rcp(float a) return 1.0 / a; } +/* XXX: find a better solution */ +double helper_sqrt(double a) +{ + return sqrt(a); +} + +/* XXX: move that to another file */ +#if defined(__powerpc__) +/* better to call an helper on ppc */ +float int32_to_float32(int32_t a) +{ + return (float)a; +} + +double int32_to_float64(int32_t a) +{ + return (double)a; +} +#endif #if !defined(CONFIG_USER_ONLY) |