Some more work on stwcxd and lwarx
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@1389 8ced0084-cf51-0410-be5f-012b33b47a6e
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@ -579,30 +579,43 @@ void stwbrx(UGeckoInstruction _inst)
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}
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// The following two instructions are for inter-cpu communications. On a single CPU, they cannot
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// fail unless an interrupt happens in between, which usually won't happen with the JIT, so we just pretend
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// they are regular loads and stores for now. If this proves to be a problem, we could add a reservation flag.
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// The following two instructions are for inter-cpu communications. On a single
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// CPU, they cannot
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// fail unless an interrupt happens in between, which usually won't happen with
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// the JIT.
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bool g_bReserve = false;
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u32 g_reserveAddr;
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void lwarx(UGeckoInstruction _inst)
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{
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m_GPR[_inst.RD] = Memory::Read_U32(Helper_Get_EA_X(_inst));
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//static bool bFirst = true;
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//if (bFirst)
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// MessageBox(NULL, "lwarx", "Instruction unimplemented", MB_OK);
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//bFirst = false;
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u32 uAddress = Helper_Get_EA_X(_inst);
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m_GPR[_inst.RD] = Memory::Read_U32(uAddress);
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g_bReserve = true;
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g_reserveAddr = uAddress;
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}
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void stwcxd(UGeckoInstruction _inst)
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{
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// This instruction, too
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static bool bFirst = true;
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if (bFirst)
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PanicAlert("stwcxd - suspicious instruction");
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//PanicAlert("stwcxd - suspicious instruction");
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// TODO: Stores Word Conditional indeXed
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// Stores Word Conditional indeXed
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bFirst = false;
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u32 uAddress = Helper_Get_EA_X(_inst);
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u32 uAddress;
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if(g_bReserve) {
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uAddress = Helper_Get_EA_X(_inst);
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if(uAddress == g_reserveAddr) {
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Memory::Write_U32(m_GPR[_inst.RS], uAddress);
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g_bReserve = false;
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return;
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}
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}
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// TODO: Set CR0 to IS_XER_SO
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}
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void stwux(UGeckoInstruction _inst)
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