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Tekken 3 - gpu.c 

- Add infinite dma loop check to chain slice
- Fixes post-replay flicker

git-svn-id: https://pcsxr.svn.codeplex.com/svn/pcsxr@59480 e17a0e51-4ae3-4d35-97c3-1a29b211df97
This commit is contained in:
SND\shalma_cp 2010-11-12 14:00:21 +00:00
parent 143dcb6825
commit 50077afa22
1 changed files with 10 additions and 4 deletions
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14
libpcsxcore/gpu.c
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@ -42,6 +42,7 @@ extern unsigned int hSyncCount;
u32 chain_ptr_addr;
u32 chain_ptr_mem;
u8 chain_infinite_loop;
/*
DMA2 Chain slicing
@ -86,6 +87,7 @@ static u32 gpuDmaChainSize(u32 addr) {
// initial linked list ptr (word)
size = 1;
chain_infinite_loop = 0;
do {
addr &= 0x1ffffc;
@ -95,7 +97,11 @@ static u32 gpuDmaChainSize(u32 addr) {
//if (DMACommandCounter++ > 2000000) break;
if (CheckForEndlessLoop(addr)) break;
if (CheckForEndlessLoop(addr))
{
chain_infinite_loop = 1;
break;
}
// # 32-bit blocks to transfer
@ -109,7 +115,7 @@ static u32 gpuDmaChainSize(u32 addr) {
chain_ptr_addr = addr;
if( addr != 0xffffff )
if( !chain_infinite_loop && addr != 0xffffff )
{
// save data at stop ptr
chain_ptr_mem = psxMu32( addr );
@ -229,8 +235,8 @@ void gpuInterrupt() {
#endif
// check valid data left - no Tekken 3 check yet
if( chain_ptr_addr != 0xffffff )
// check valid data left
if( !chain_infinite_loop && chain_ptr_addr != 0xffffff )
{
// put back old value first
psxMu32ref( chain_ptr_addr ) = chain_ptr_mem;