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Core/DSPCore: Make JIT work on 64 bit hosts

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This is the safe variant that does not assume other
functions use R11 for &g_dsp.r, which they actually do.
So there is a lot unnecessary reloading of the register
getting emitted.

There are a few small changes exploiting pointers known
at emission time and making use of MComplex math.

Also renames m_LLEplaying to m_AIplaying in Core/AudioCommon.


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6245 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
pierre
2010-10-01 23:23:13 +00:00
parent c8c805f720
commit b80e207a8a
6 changed files with 313 additions and 26 deletions
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19
Source/Core/DSPCore/Src/DSPEmitter.cpp
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@ -85,7 +85,12 @@ void DSPEmitter::checkExceptions() {
*/
ABI_CallFunction((void *)&DSPCore_CheckExternalInterrupt);
// Check for interrupts and exceptions
#ifdef _M_IX86 // All32
TEST(8, M(&g_dsp.exceptions), Imm8(0xff));
#else
MOV(64, R(RAX), ImmPtr(&g_dsp.exceptions));
TEST(8, MDisp(RAX,0), Imm8(0xff));
#endif
FixupBranch skipCheck = J_CC(CC_Z);
ABI_CallFunction((void *)&DSPCore_CheckExceptions);
@ -165,7 +170,12 @@ const u8 *DSPEmitter::Compile(int start_addr) {
const DSPOPCTemplate *opcode = GetOpTemplate(inst);
// Increment PC - we shouldn't need to do this for every instruction. only for branches and end of block.
#ifdef _M_IX86 // All32
ADD(16, M(&(g_dsp.pc)), Imm16(1));
#else
MOV(64, R(RAX), ImmPtr(&(g_dsp.pc)));
ADD(16, MDisp(RAX,0), Imm16(1));
#endif
EmitInstruction(inst);
@ -175,11 +185,20 @@ const u8 *DSPEmitter::Compile(int start_addr) {
// if (DSPAnalyzer::code_flags[addr] & DSPAnalyzer::CODE_LOOP_END)
{
// TODO: Change to TEST for some reason (who added this comment?)
#ifdef _M_IX86 // All32
MOVZX(32, 16, EAX, M(&(g_dsp.r[DSP_REG_ST2])));
#else
MOV(64, R(R11), ImmPtr(&g_dsp.r));
MOVZX(32, 16, EAX, MDisp(R11,DSP_REG_ST2*2));
#endif
CMP(32, R(EAX), Imm32(0));
FixupBranch rLoopAddressExit = J_CC(CC_LE);
#ifdef _M_IX86 // All32
MOVZX(32, 16, EAX, M(&(g_dsp.r[DSP_REG_ST3])));
#else
MOVZX(32, 16, EAX, MDisp(R11,DSP_REG_ST3*2));
#endif
CMP(32, R(EAX), Imm32(0));
FixupBranch rLoopCounterExit = J_CC(CC_LE);