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DSP Jit some code cleanup

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5376 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
nakeee
2010-04-16 10:50:52 +00:00
parent 4b232e50c5
commit ebac492716
4 changed files with 166 additions and 133 deletions
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41
Source/Core/DSPCore/Src/DSPEmitter.cpp
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@ -66,6 +66,27 @@ void DSPEmitter::ClearIRAM() {
}
}
// Must go out of block if exception is detected
void DSPEmitter::checkExceptions() {
ABI_CallFunction((void *)&DSPCore_CheckExternalInterrupt);
// Check for interrupts and exceptions
TEST(8, M(&g_dsp.exceptions), Imm8(0xff));
FixupBranch skipCheck = J_CC(CC_Z);
ABI_CallFunction((void *)&DSPCore_CheckExceptions);
MOV(32, R(EAX), M(&g_dsp.exception_in_progress));
CMP(32, R(EAX), Imm32(0));
FixupBranch noExceptionOccurred = J_CC(CC_L);
// ABI_CallFunction((void *)DSPInterpreter::HandleLoop);
ABI_RestoreStack(0);
RET();
SetJumpTarget(skipCheck);
SetJumpTarget(noExceptionOccurred);
}
void DSPEmitter::WriteCallInterpreter(UDSPInstruction inst)
{
const DSPOPCTemplate *tinst = GetOpTemplate(inst);
@ -116,28 +137,12 @@ const u8 *DSPEmitter::Compile(int start_addr) {
ABI_AlignStack(0);
int addr = start_addr;
checkExceptions();
while (addr < start_addr + BLOCK_SIZE)
{
UDSPInstruction inst = dsp_imem_read(addr);
const DSPOPCTemplate *opcode = GetOpTemplate(inst);
// Check for interrupts and exceptions
TEST(8, M(&g_dsp.exceptions), Imm8(0xff));
FixupBranch skipCheck = J_CC(CC_Z);
ABI_CallFunction((void *)&DSPCore_CheckExceptions);
MOV(32, R(EAX), M(&g_dsp.exception_in_progress));
CMP(32, R(EAX), Imm32(0));
FixupBranch noExceptionOccurred = J_CC(CC_L);
// ABI_CallFunction((void *)DSPInterpreter::HandleLoop);
ABI_RestoreStack(0);
RET();
SetJumpTarget(skipCheck);
SetJumpTarget(noExceptionOccurred);
// Increment PC
ADD(16, M(&(g_dsp.pc)), Imm16(1));
@ -198,8 +203,6 @@ void STACKALIGN DSPEmitter::RunBlock(int cycles)
{
if (block_cycles > 500)
{
if(g_dsp.cr & CR_EXTERNAL_INT)
DSPCore_CheckExternalInterrupt();
block_cycles = 0;
}