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Adjust initial thread SP/FP value.

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This commit is contained in:
Jean-Philip Desjardins 2016-10-26 21:53:27 -04:00
parent 10c29ecaa9
commit 43ce1be72f
2 changed files with 7 additions and 4 deletions
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10
Source/ee/PS2OS.cpp
View File

@ -1657,8 +1657,8 @@ void CPS2OS::sc_CreateThread()
auto context = reinterpret_cast<THREADCONTEXT*>(&m_ram[thread->contextPtr]);
memset(context, 0, sizeof(THREADCONTEXT));
context->gpr[CMIPS::SP].nV0 = stackAddr;
context->gpr[CMIPS::FP].nV0 = stackAddr;
context->gpr[CMIPS::SP].nV0 = stackAddr - STACK_FRAME_RESERVE_SIZE;
context->gpr[CMIPS::FP].nV0 = stackAddr - STACK_FRAME_RESERVE_SIZE;
context->gpr[CMIPS::GP].nV0 = threadParam->gp;
context->gpr[CMIPS::RA].nV0 = BIOS_ADDRESS_THREADEPILOG;
@ -1714,6 +1714,8 @@ void CPS2OS::sc_StartThread()
return;
}
uint32 stackAddr = thread->stackBase + thread->stackSize;
assert(thread->status == THREAD_ZOMBIE);
thread->status = THREAD_RUNNING;
thread->epc = thread->threadProc;
@ -1721,8 +1723,8 @@ void CPS2OS::sc_StartThread()
auto context = reinterpret_cast<THREADCONTEXT*>(&m_ram[thread->contextPtr]);
context->gpr[CMIPS::A0].nV0 = arg;
context->gpr[CMIPS::RA].nV0 = BIOS_ADDRESS_THREADEPILOG;
context->gpr[CMIPS::SP].nV0 = thread->contextPtr;
context->gpr[CMIPS::FP].nV0 = thread->contextPtr;
context->gpr[CMIPS::SP].nV0 = stackAddr - STACK_FRAME_RESERVE_SIZE;
context->gpr[CMIPS::FP].nV0 = stackAddr - STACK_FRAME_RESERVE_SIZE;
m_ee.m_State.nGPR[SC_RETURN].nD0 = static_cast<int32>(id);

1
Source/ee/PS2OS.h
View File

@ -119,6 +119,7 @@ private:
enum STACKRES
{
STACKRES = 0x2A0,
STACK_FRAME_RESERVE_SIZE = 0x20
};
//Castlevania: CoD relies on the fact that the GPRs are stored