The-Homebrew-Cloud/dolphin
2
0
Fork 0
mirror of https://github.com/dolphin-emu/dolphin.git synced 2025-06-18 18:58:55 +02:00
Code Issues Packages Projects Releases Wiki Activity

LLE JIT:

Browse Source 
* Fixed a bug in the JCC instruction.
* Changed the cycle count from u32 to u16.
* Added cycle counting to the block linker.
* Optimised the branch exit slightly.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6681 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
skidau
2010-12-29 04:34:33 +00:00
parent fc1db5eaa0
commit 8ccdba7273
6 changed files with 146 additions and 74 deletions
Download Patch File Download Diff File Expand all files Collapse all files

83
Source/Core/DSPCore/Src/DSPEmitter.cpp
View File

@ -26,14 +26,42 @@
#include "ABI.h"
#define MAX_BLOCK_SIZE 250
#define DSP_IDLE_SKIP_CYCLES 1000
#define DSP_IDLE_SKIP_CYCLES 0x1000
using namespace Gen;
const u8 *stubEntryPoint;
u16 blocksCompiled;
u16 unresolvedCalls;
int startAddr;
static bool checkExtendedExclude(UDSPInstruction inst)
{
const DSPOPCTemplate *tinst = GetOpTemplate(inst);
// Call extended
if (!tinst->extended)
return false;
if ((inst >> 12) != 0x3)
return false;
/*
if((inst & 0x00ff) == 0x00c0) {
fprintf(stderr,"blocking %04x\n", inst);
return true;
}
*/
return false;
}
static bool checkMainExclude(UDSPInstruction inst)
{
/*
if((inst & 0xfffc) == 0x1fcc)
return true;
*/
// if((inst & 0xfffc) == 0x1fcc)
// return true;
return false;
}
DSPEmitter::DSPEmitter() : storeIndex(-1), storeIndex2(-1)
{
@ -112,35 +140,6 @@ void DSPEmitter::checkExceptions(u32 retval)
SetJumpTarget(skipCheck);
}
static bool checkExtendedExclude(UDSPInstruction inst)
{
const DSPOPCTemplate *tinst = GetOpTemplate(inst);
// Call extended
if (!tinst->extended)
return false;
if ((inst >> 12) != 0x3)
return false;
/*
if((inst & 0x00ff) == 0x00c0) {
fprintf(stderr,"blocking %04x\n", inst);
return true;
}
*/
return false;
}
static bool checkMainExclude(UDSPInstruction inst)
{
/*
if((inst & 0xfffc) == 0x1fcc)
return true;
*/
// if((inst & 0xfffc) == 0x1fcc)
// return true;
return false;
}
void DSPEmitter::Default(UDSPInstruction inst)
{
if (opTable[inst]->reads_pc)
@ -359,11 +358,11 @@ void DSPEmitter::Compile(int start_addr)
ABI_PopAllCalleeSavedRegsAndAdjustStack();
if (DSPAnalyzer::code_flags[start_addr] & DSPAnalyzer::CODE_IDLE_SKIP)
{
MOV(32,R(EAX),Imm32(DSP_IDLE_SKIP_CYCLES));
MOV(16, R(EAX), Imm16(DSP_IDLE_SKIP_CYCLES));
}
else
{
MOV(32,R(EAX),Imm32(blockSize[start_addr]));
MOV(16, R(EAX), Imm16(blockSize[start_addr]));
}
RET();
@ -379,7 +378,7 @@ void DSPEmitter::Compile(int start_addr)
{
break;
}
else
else if (!opcode->jitFunc)
{
//look at g_dsp.pc if we actually branched
#ifdef _M_IX86 // All32
@ -396,11 +395,11 @@ void DSPEmitter::Compile(int start_addr)
ABI_PopAllCalleeSavedRegsAndAdjustStack();
if (DSPAnalyzer::code_flags[start_addr] & DSPAnalyzer::CODE_IDLE_SKIP)
{
MOV(32,R(EAX),Imm32(DSP_IDLE_SKIP_CYCLES));
MOV(16, R(EAX), Imm16(DSP_IDLE_SKIP_CYCLES));
}
else
{
MOV(32,R(EAX),Imm32(blockSize[start_addr]));
MOV(16, R(EAX), Imm16(blockSize[start_addr]));
}
RET();
@ -443,11 +442,11 @@ void DSPEmitter::Compile(int start_addr)
ABI_PopAllCalleeSavedRegsAndAdjustStack();
if (DSPAnalyzer::code_flags[start_addr] & DSPAnalyzer::CODE_IDLE_SKIP)
{
MOV(32,R(EAX),Imm32(DSP_IDLE_SKIP_CYCLES));
MOV(16, R(EAX), Imm16(DSP_IDLE_SKIP_CYCLES));
}
else
{
MOV(32,R(EAX),Imm32(blockSize[start_addr]));
MOV(16, R(EAX), Imm16(blockSize[start_addr]));
}
RET();
}
@ -473,13 +472,13 @@ void DSPEmitter::CompileDispatcher()
// Cache pointers into registers
#ifdef _M_IX86
MOV(32, R(ESI), M(&cyclesLeft));
MOV(16, R(ESI), M(&cyclesLeft));
MOV(32, R(EBX), ImmPtr(blocks));
#else
// Using R12 here since it is callee save register on both
// linux and windows 64.
MOV(64, R(R12), ImmPtr(&cyclesLeft));
MOV(32, R(R12), MatR(R12));
MOV(16, R(R12), MatR(R12));
MOV(64, R(RBX), ImmPtr(blocks));
#endif
@ -510,9 +509,9 @@ void DSPEmitter::CompileDispatcher()
// Decrement cyclesLeft
#ifdef _M_IX86
SUB(32, R(ESI), R(EAX));
SUB(16, R(ESI), R(EAX));
#else
SUB(32, R(R12), R(EAX));
SUB(16, R(R12), R(EAX));
#endif
J_CC(CC_A, dispatcherLoop);