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target-i386: fix helper_fdiv() wrt softfloat 

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2011-04-20 13:04:23 +02:00
parent c9ad19c57b
commit 13822781d4
2 changed files with 7 additions and 2 deletions
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4
target-i386/exec.h
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@ -111,6 +111,7 @@ static inline void svm_check_intercept(uint32_t type)
#define floatx_to_float32 floatx80_to_float32
#define floatx_to_float64 floatx80_to_float64
#define floatx_add floatx80_add
#define floatx_div floatx80_div
#define floatx_mul floatx80_mul
#define floatx_sub floatx80_sub
#define floatx_abs floatx80_abs
@ -120,6 +121,7 @@ static inline void svm_check_intercept(uint32_t type)
#define floatx_compare floatx80_compare
#define floatx_compare_quiet floatx80_compare_quiet
#define floatx_is_any_nan floatx80_is_any_nan
#define floatx_is_zero floatx80_is_zero
#else
#define floatx_to_int32 float64_to_int32
#define floatx_to_int64 float64_to_int64
@ -132,6 +134,7 @@ static inline void svm_check_intercept(uint32_t type)
#define floatx_to_float32 float64_to_float32
#define floatx_to_float64(x, e) (x)
#define floatx_add float64_add
#define floatx_div float64_div
#define floatx_mul float64_mul
#define floatx_sub float64_sub
#define floatx_abs float64_abs
@ -141,6 +144,7 @@ static inline void svm_check_intercept(uint32_t type)
#define floatx_compare float64_compare
#define floatx_compare_quiet float64_compare_quiet
#define floatx_is_any_nan float64_is_any_nan
#define floatx_is_zero float64_is_zero
#endif
#define RC_MASK 0xc00

5
target-i386/op_helper.c
View File

@ -3440,9 +3440,10 @@ static void fpu_set_exception(int mask)
static inline CPU86_LDouble helper_fdiv(CPU86_LDouble a, CPU86_LDouble b)
{
if (b == 0.0)
if (floatx_is_zero(b)) {
fpu_set_exception(FPUS_ZE);
return a / b;
}
return floatx_div(a, b, &env->fp_status);
}
static void fpu_raise_exception(void)