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more fpu functions 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1233 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2005-01-23 20:44:55 +00:00
parent dc9543dc22
commit 79f91c27ba
1 changed files with 39 additions and 0 deletions
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39
target-i386/exec.h
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@ -142,6 +142,44 @@ extern int loglevel;
#include "cpu.h"
#include "exec-all.h"
/* XXX: add a generic FPU library */
static inline double float32_to_float64(float a)
{
return a;
}
static inline float float64_to_float32(double a)
{
return a;
}
#if defined(__powerpc__)
/* better to call an helper on ppc */
float int32_to_float32(int32_t a);
double int32_to_float64(int32_t a);
#else
static inline float int32_to_float32(int32_t a)
{
return (float)a;
}
static inline double int32_to_float64(int32_t a)
{
return (double)a;
}
#endif
static inline float int64_to_float32(int64_t a)
{
return (float)a;
}
static inline double int64_to_float64(int64_t a)
{
return (double)a;
}
typedef struct CCTable {
int (*compute_all)(void); /* return all the flags */
int (*compute_c)(void); /* return the C flag */
@ -559,6 +597,7 @@ void restore_native_fp_state(CPUState *env);
void save_native_fp_state(CPUState *env);
float approx_rsqrt(float a);
float approx_rcp(float a);
double helper_sqrt(double a);
int fpu_isnan(double a);
extern const uint8_t parity_table[256];