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DMA / memcpy the actual size, rather then over-estimated (can cause crashes)

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added alternative to memcpy, for debugging
This commit is contained in:
ejcoumans
2007-06-14 00:21:15 +00:00
parent f4d31a2dd8
commit fc6cf5dbef
2 changed files with 92 additions and 17 deletions
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42
Extras/BulletMultiThreaded/SpuFakeDma.cpp
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@@ -1,24 +1,54 @@
#include "SpuFakeDma.h"
//Disabling memcpy sometimes helps debugging DMA
#define USE_MEMCPY 1
int cellDmaLargeGet(void *ls, uint64_t ea, uint32_t size, uint32_t tag, uint32_t tid, uint32_t rid)
{
void* targetMainMem = (void*)ea;
memcpy(ls,targetMainMem,size);
char* mainMem = (char*)ea;
char* localStore = (char*)ls;
#ifdef USE_MEMCPY
memcpy(localStore,mainMem,size);
#else
for (uint32_t i=0;i<size;i++)
{
localStore[i] = mainMem[i];
}
#endif
return 0;
}
int cellDmaGet(void *ls, uint64_t ea, uint32_t size, uint32_t tag, uint32_t tid, uint32_t rid)
{
void* targetMainMem = (void*)ea;
memcpy(ls,targetMainMem,size);
char* mainMem = (char*)ea;
char* localStore = (char*)ls;
#ifdef USE_MEMCPY
memcpy(localStore,mainMem,size);
#else
for (uint32_t i=0;i<size;i++)
{
localStore[i] = mainMem[i];
}
#endif //#ifdef USE_MEMCPY
return 0;
}
int cellDmaLargePut(const void *ls, uint64_t ea, uint32_t size, uint32_t tag, uint32_t tid, uint32_t rid)
{
void* targetMainMem = (void*)ea;
memcpy(targetMainMem,ls,size);
char* mainMem = (char*)ea;
const char* localStore = (const char*)ls;
#ifdef USE_MEMCPY
memcpy(mainMem,localStore,size);
#else
for (uint32_t i=0;i<size;i++)
{
mainMem[i] = localStore[i];
}
#endif //#ifdef USE_MEMCPY
return 0;
}