diff options
Diffstat (limited to 'target/i386/tcg/fpu_helper.c')
| -rw-r--r-- | target/i386/tcg/fpu_helper.c | 39 |
1 files changed, 22 insertions, 17 deletions
diff --git a/target/i386/tcg/fpu_helper.c b/target/i386/tcg/fpu_helper.c index 03b3544..60ed935 100644 --- a/target/i386/tcg/fpu_helper.c +++ b/target/i386/tcg/fpu_helper.c @@ -26,11 +26,18 @@ #include "exec/cpu_ldst.h" #include "fpu/softfloat.h" #include "fpu/softfloat-macros.h" +#include "helper-tcg.h" #ifdef CONFIG_SOFTMMU #include "hw/irq.h" #endif +/* float macros */ +#define FT0 (env->ft0) +#define ST0 (env->fpregs[env->fpstt].d) +#define ST(n) (env->fpregs[(env->fpstt + (n)) & 7].d) +#define ST1 ST(1) + #define FPU_RC_MASK 0xc00 #define FPU_RC_NEAR 0x000 #define FPU_RC_DOWN 0x400 @@ -2986,23 +2993,21 @@ void update_mxcsr_status(CPUX86State *env) void update_mxcsr_from_sse_status(CPUX86State *env) { - if (tcg_enabled()) { - uint8_t flags = get_float_exception_flags(&env->sse_status); - /* - * The MXCSR denormal flag has opposite semantics to - * float_flag_input_denormal (the softfloat code sets that flag - * only when flushing input denormals to zero, but SSE sets it - * only when not flushing them to zero), so is not converted - * here. - */ - env->mxcsr |= ((flags & float_flag_invalid ? FPUS_IE : 0) | - (flags & float_flag_divbyzero ? FPUS_ZE : 0) | - (flags & float_flag_overflow ? FPUS_OE : 0) | - (flags & float_flag_underflow ? FPUS_UE : 0) | - (flags & float_flag_inexact ? FPUS_PE : 0) | - (flags & float_flag_output_denormal ? FPUS_UE | FPUS_PE : - 0)); - } + uint8_t flags = get_float_exception_flags(&env->sse_status); + /* + * The MXCSR denormal flag has opposite semantics to + * float_flag_input_denormal (the softfloat code sets that flag + * only when flushing input denormals to zero, but SSE sets it + * only when not flushing them to zero), so is not converted + * here. + */ + env->mxcsr |= ((flags & float_flag_invalid ? FPUS_IE : 0) | + (flags & float_flag_divbyzero ? FPUS_ZE : 0) | + (flags & float_flag_overflow ? FPUS_OE : 0) | + (flags & float_flag_underflow ? FPUS_UE : 0) | + (flags & float_flag_inexact ? FPUS_PE : 0) | + (flags & float_flag_output_denormal ? FPUS_UE | FPUS_PE : + 0)); } void helper_update_mxcsr(CPUX86State *env) |