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Add fast cast inlines

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This commit is contained in:
gamemasterplc 2023-12-28 16:08:54 -06:00
parent c8c43ece69
commit 9012193413
1 changed files with 34 additions and 0 deletions
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34
include/dolphin/os/OSFastCast.h
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@ -41,6 +41,40 @@ static inline void OSInitFastCast(void) {
}
// clang-format off
static inline s16 __OSf32tos16(register f32 inF)
{
register s16 out;
u32 tmp;
register u32* tmpPtr = &tmp;
// clang-format off
asm {
psq_st inF, 0(tmpPtr), 0x1, OS_FASTCAST_S16
lha out, 0(tmpPtr)
}
// clang-format on
return out;
}
static inline void OSf32tos16(f32 *f, s16 *out) { *out = __OSf32tos16(*f); }
static inline u8 __OSf32tou8(register f32 inF)
{
register u8 out;
u32 tmp;
register u32 *tmpPtr = &tmp;
// clang-format off
asm {
psq_st inF, 0(tmpPtr), 0x1, OS_FASTCAST_U8
lbz out, 0(tmpPtr)
}
// clang-format on
return out;
}
static inline void OSf32tou8(f32 *f, u8 *out) { *out = __OSf32tou8(*f); }
#ifdef __cplusplus
}
#endif