From 79f91c27bad7cf39ff336f1b2ed418942f65bab6 Mon Sep 17 00:00:00 2001 From: bellard Date: Sun, 23 Jan 2005 20:44:55 +0000 Subject: [PATCH] more fpu functions git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1233 c046a42c-6fe2-441c-8c8c-71466251a162 --- target-i386/exec.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/target-i386/exec.h b/target-i386/exec.h index 1923b95..404457e 100644 --- a/target-i386/exec.h +++ b/target-i386/exec.h @@ -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]; -- 2.7.4