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| author | notaz | 2010-12-21 13:53:31 +0200 |
|---|---|---|
| committer | notaz | 2010-12-21 13:53:31 +0200 |
| commit | a2544c926e9f382d57614ba2594ede0f56f4a108 (patch) | |
| tree | 1dc3d36b002bf1d637184400ceaf8970c05ecff3 | |
| parent | 7e605697028dd22dbf2d6ee4701add1e31814b1a (diff) | |
| download | pcsx_rearmed-a2544c926e9f382d57614ba2594ede0f56f4a108.tar.gz pcsx_rearmed-a2544c926e9f382d57614ba2594ede0f56f4a108.tar.bz2 pcsx_rearmed-a2544c926e9f382d57614ba2594ede0f56f4a108.zip | |
hack: use simple GTE division
that large table was slow, probably because of dcache trashing.
| -rw-r--r-- | libpcsxcore/gte.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/libpcsxcore/gte.c b/libpcsxcore/gte.c index 72210d3..00e7954 100644 --- a/libpcsxcore/gte.c +++ b/libpcsxcore/gte.c @@ -348,6 +348,16 @@ void gteSWC2() { psxMemWrite32(_oB_, MFC2(_Rt_)); } +#define DIVIDE DIVIDE_ +static u32 DIVIDE_(s16 n, u16 d) { + if (n >= 0 && n < d * 2) { + s32 n_ = n; + return ((n_ << 16) + d / 2) / d; + //return (u32)((float)(n_ << 16) / (float)d + (float)0.5); + } + return 0xffffffff; +} + void gteRTPS() { int quotient; |