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DSP JIT reenable nr with a small fix

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5327 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
nakeee
2010-04-11 12:14:51 +00:00
parent a4515490ce
commit 7c35138435
2 changed files with 37 additions and 29 deletions
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64
Source/Core/DSPCore/Src/Jit/DSPJitUtil.cpp
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@ -31,8 +31,8 @@ using namespace Gen;
// See http://code.google.com/p/dolphin-emu/source/detail?r=3125
void DSPEmitter::increment_addr_reg(int reg)
{
PUSH(EAX);
PUSH(ECX);
// PUSH(EAX);
// PUSH(ECX);
// u16 tmb = g_dsp.r[DSP_REG_WR0 + reg];
MOVZX(32, 16, EAX, M(&g_dsp.r[DSP_REG_WR0 + reg]));
@ -81,15 +81,15 @@ void DSPEmitter::increment_addr_reg(int reg)
// g_dsp.r[reg] = tmp;
MOV(16, M(&g_dsp.r[reg]), R(ECX));
POP(ECX);
POP(EAX);
// POP(ECX);
// POP(EAX);
}
// See http://code.google.com/p/dolphin-emu/source/detail?r=3125
void DSPEmitter::decrement_addr_reg(int reg)
{
PUSH(EAX);
PUSH(ECX);
// PUSH(EAX);
// PUSH(ECX);
// s16 tmp = g_dsp.r[reg];
MOVZX(32, 16, EAX, M(&g_dsp.r[reg]));
@ -113,33 +113,27 @@ void DSPEmitter::decrement_addr_reg(int reg)
// g_dsp.r[reg] = tmp;
MOV(16, M(&g_dsp.r[reg]), R(EAX));
POP(ECX);
POP(EAX);
// POP(ECX);
// POP(EAX);
}
// Increase addr register according to the correspond ix register
void DSPEmitter::increase_addr_reg(int reg)
{
// s16 value = (s16)g_dsp.r[DSP_REG_IX0 + reg];
//FIXME: interpreter uses reg, not IX0+reg?
MOVSX(32, 16, EDX, M(&g_dsp.r[reg]));
XOR(32, R(ECX), R(ECX)); // i = 0
MOVSX(32, 16, EDX, M(&g_dsp.r[DSP_REG_IX0 + reg]));
XOR(32, R(ESI), R(ESI)); // i = 0
// if (value > 0)
CMP(16, R(EDX), Imm16(0));
//FIXME: those jumps are too far for one byte,
// and force5bytes = true causes an illegal
// instruction for me.
// calling (de|in)crement_addr_reg causes that.
FixupBranch end = J_CC(CC_Z);
FixupBranch end = J_CC(CC_Z, true);
FixupBranch negValue = J_CC(CC_L);
// for (int i = 0; i < value; i++)
JumpTarget loop_pos = GetCodePtr();
increment_addr_reg(reg);
ADD(32, R(ECX), Imm32(1)); // i++
CMP(32, R(ECX), R(EDX)); // i < value
ADD(32, R(ESI), Imm32(1)); // i++
CMP(32, R(ESI), R(EDX)); // i < value
J_CC(CC_NE, loop_pos);
FixupBranch posValue = J();
@ -153,8 +147,8 @@ void DSPEmitter::increase_addr_reg(int reg)
JumpTarget loop_neg = GetCodePtr();
decrement_addr_reg(reg);
ADD(32, R(ECX), Imm32(1)); // i++
CMP(32, R(ECX), R(EDX)); // i < -value
ADD(32, R(ESI), Imm32(1)); // i++
CMP(32, R(ESI), R(EDX)); // i < -value
J_CC(CC_NE, loop_neg);
SetJumpTarget(posValue);
@ -208,15 +202,29 @@ void DSPEmitter::decrease_addr_reg(int reg)
void DSPEmitter::ext_dmem_write(u32 dest, u32 src)
{
u16 addr = g_dsp.r[dest];
u16 val = g_dsp.r[src];
u16 saddr = addr >> 12;
// u16 addr = g_dsp.r[dest];
MOVZX(32, 16, EAX, M(&g_dsp.r[dest]));
if (saddr == 0)
g_dsp.dram[addr & DSP_DRAM_MASK] = val;
else if (saddr == 0xf)
gdsp_ifx_write(addr, val);
// u16 val = g_dsp.r[src];
MOVZX(32, 16, ECX, M(&g_dsp.r[src]));
// u16 saddr = addr >> 12;
MOVZX(32, 16, ESI, R(EAX));
SHR(16, R(ESI), Imm16(12));
// if (saddr == 0)
CMP(16, R(ESI), Imm16(0));
FixupBranch ifx = J_CC(CC_NZ);
// g_dsp.dram[addr & DSP_DRAM_MASK] = val;
AND(16, R(EAX), Imm16(DSP_DRAM_MASK));
// MOVZX(32, 16, M);
FixupBranch end = J();
// else if (saddr == 0xf)
SetJumpTarget(ifx);
// gdsp_ifx_write(addr, val);
SetJumpTarget(end);
}
u16 DSPEmitter::ext_dmem_read(u16 addr)