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EE:Rec: Avoid rbx

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Will be used for holding a pointer to the PCSX2 text section
This commit is contained in:
TellowKrinkle
2026-03-28 17:49:17 -04:00
committed by Ty
parent 46e85c4586
commit e814408026
5 changed files with 28 additions and 32 deletions
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pcsx2/x86/R5900_Profiler.h
+4 -5
View File
@@ -367,14 +367,13 @@ struct eeProfiler
}
}
// Warning dirty ebx
void EmitMem()
void EmitMem(int addr_reg)
{
// Compact the 4GB virtual address to a 512KB virtual address
if (g_cpu.hasBMI2)
{
xPEXT(ebx, ecx, ptr[&memMask]);
xADD(ptr32[(rbx * 4) + memStats], 1);
xPEXT(arg1regd, xRegister32(addr_reg), ptr[&memMask]);
xADD(ptr32[(arg1reg * 4) + memStats], 1);
}
}
@@ -406,7 +405,7 @@ struct eeProfiler
__fi void Reset() {}
__fi void EmitOp(eeOpcode op) {}
__fi void Print() {}
__fi void EmitMem() {}
__fi void EmitMem(int addrReg) {}
__fi void EmitConstMem(u32 add) {}
__fi void EmitSlowMem() {}
__fi void EmitFastMem() {}
pcsx2/x86/iR3000A.cpp
+8 -8
View File
@@ -176,10 +176,10 @@ static const void* _DynGen_JITCompile()
xFastCall((void*)iopRecRecompile, ptr32[&psxRegs.pc]);
xMOV(eax, ptr[&psxRegs.pc]);
xMOV(ebx, eax);
xMOV(edx, eax);
xSHR(eax, 16);
xMOV(rcx, ptrNative[xComplexAddress(rcx, psxRecLUT, rax * wordsize)]);
xJMP(ptrNative[rbx * (wordsize / 4) + rcx]);
xJMP(ptrNative[rdx * (wordsize / 4) + rcx]);
return retval;
}
@@ -190,10 +190,10 @@ static const void* _DynGen_DispatcherReg()
u8* retval = xGetPtr();
xMOV(eax, ptr[&psxRegs.pc]);
xMOV(ebx, eax);
xMOV(edx, eax);
xSHR(eax, 16);
xMOV(rcx, ptrNative[xComplexAddress(rcx, psxRecLUT, rax * wordsize)]);
xJMP(ptrNative[rbx * (wordsize / 4) + rcx]);
xJMP(ptrNative[rdx * (wordsize / 4) + rcx]);
return retval;
}
@@ -1202,16 +1202,16 @@ static void iPsxBranchTest(u32 newpc, u32 cpuBranch)
}
else
{
xMOV(rbx, ptr64[&psxRegs.cycle]);
xADD(rbx, blockCycles);
xMOV(ptr64[&psxRegs.cycle], rbx); // update cycles
xMOV(r12, ptr64[&psxRegs.cycle]);
xADD(r12, blockCycles);
xMOV(ptr64[&psxRegs.cycle], r12); // update cycles
// jump if iopCycleEE <= 0 (iop's timeslice timed out, so time to return control to the EE)
iPsxAddEECycles(blockCycles);
xJLE(iopExitRecompiledCode);
// check if an event is pending
xSUB(rbx, ptr64[&psxRegs.iopNextEventCycle]);
xSUB(r12, ptr64[&psxRegs.iopNextEventCycle]);
xForwardJS<u8> nointerruptpending;
xFastCall((void*)iopEventTest);
pcsx2/x86/ix86-32/iR5900.cpp
+8 -8
View File
@@ -384,10 +384,10 @@ static const void* _DynGen_JITCompile()
// void(**base)() = (void(**)())recLUT[addr >> 16];
// base[addr >> 2]();
xMOV(eax, ptr[&cpuRegs.pc]);
xMOV(ebx, eax);
xMOV(edx, eax);
xSHR(eax, 16);
xMOV(rcx, ptrNative[xComplexAddress(rcx, recLUT, rax * wordsize)]);
xJMP(ptrNative[rbx * (wordsize / 4) + rcx]);
xJMP(ptrNative[rdx * (wordsize / 4) + rcx]);
return retval;
}
@@ -402,10 +402,10 @@ static const void* _DynGen_DispatcherReg()
// void(**base)() = (void(**)())recLUT[addr >> 16];
// base[addr >> 2]();
xMOV(eax, ptr[&cpuRegs.pc]);
xMOV(ebx, eax);
xMOV(edx, eax);
xSHR(eax, 16);
xMOV(rcx, ptrNative[xComplexAddress(rcx, recLUT, rax * wordsize)]);
xJMP(ptrNative[rbx * (wordsize / 4) + rcx]);
xJMP(ptrNative[rdx * (wordsize / 4) + rcx]);
return retval;
}
@@ -2127,17 +2127,17 @@ static bool recSkipTimeoutLoop(s32 reg, bool is_timeout_loop)
// if new_v0 > 0 { jump to dispatcher because loop exited early }
// else new_v0 is 0, so exit loop
xMOV(rbx, ptr64[&cpuRegs.cycle]); // ebx = cycle
xMOV(r12, ptr64[&cpuRegs.cycle]); // ebx = cycle
xMOV(rcx, ptr64[&cpuRegs.nextEventCycle]); // ecx = nextEventCycle
xCMP(rbx, rcx);
xCMP(r12, rcx);
xJAE((void*)DispatcherEvent); // jump to dispatcher if event immediately
xMOV(edx, ptr32[&cpuRegs.GPR.r[reg].UL[0]]); // eax = v0
xLEA(rax, ptrNative[rdx * 8 + rbx]); // edx = v0 * 8 + cycle
xLEA(rax, ptrNative[rdx * 8 + r12]); // edx = v0 * 8 + cycle
xCMP(rcx, rax);
xCMOVB(rax, rcx); // eax = new_cycles = min(v8 * 8, nextEventCycle)
xMOV(ptr64[&cpuRegs.cycle], rax); // writeback new_cycles
xSUB(rax, rbx); // new_cycles -= cycle
xSUB(rax, r12); // new_cycles -= cycle
xSHR(rax, 3); // compute new v0 value
xSUB(rdx, rax); // v0 -= cycle_diff
xMOV(ptr32[&cpuRegs.GPR.r[reg].UL[0]], edx); // write back new value of v0
pcsx2/x86/ix86-32/recVTLB.cpp
+4 -7
View File
@@ -119,14 +119,12 @@ static void __vectorcall LogWriteQuad(u32 addr, __m128i val)
namespace vtlb_private
{
// ------------------------------------------------------------------------
// Prepares eax, ecx, and, ebx for Direct or Indirect operations.
// Returns the writeback pointer for ebx (return address from indirect handling)
// Prepares eax and ecx for Direct or Indirect operations.
//
static void DynGen_PrepRegs(int addr_reg, int value_reg, u32 sz, bool xmm)
{
EE::Profiler.EmitMem();
_freeX86reg(arg1regd);
EE::Profiler.EmitMem(addr_reg);
xMOV(arg1regd, xRegister32(addr_reg));
if (value_reg >= 0)
@@ -269,7 +267,7 @@ static void DynGen_HandlerTest(const GenDirectFn& gen_direct, int mode, int bits
// ------------------------------------------------------------------------
// Generates the various instances of the indirect dispatchers
// In: arg1reg: vtlb entry, arg2reg: data ptr (if mode >= 64), rbx: function return ptr
// In: arg1reg: vtlb entry, arg2reg: data ptr (if mode >= 64)
// Out: eax: result (if mode < 64)
static void DynGen_IndirectTlbDispatcher(int mode, int bits, bool sign)
{
@@ -941,14 +939,13 @@ void vtlb_DynBackpatchLoadStore(uptr code_address, u32 code_size, u32 guest_pc,
u32 num_gprs = 0;
u32 num_fprs = 0;
const u32 rbxid = static_cast<u32>(rbx.GetId());
const u32 arg1id = static_cast<u32>(arg1reg.GetId());
const u32 arg2id = static_cast<u32>(arg2reg.GetId());
const u32 arg3id = static_cast<u32>(arg3reg.GetId());
for (u32 i = 0; i < iREGCNT_GPR; i++)
{
if ((gpr_bitmask & (1u << i)) && (i == rbxid || i == arg1id || i == arg2id || xRegisterBase::IsCallerSaved(i)) && (!is_load || is_xmm || data_register != i))
if ((gpr_bitmask & (1u << i)) && (i == arg1id || i == arg2id || xRegisterBase::IsCallerSaved(i)) && (!is_load || is_xmm || data_register != i))
num_gprs++;
}
for (u32 i = 0; i < iREGCNT_XMM; i++)
pcsx2/x86/microVU_Misc.h
+4 -4
View File
@@ -141,10 +141,10 @@ static const char branchSTR[16][8] = {
#define gprT1b ax // Low 16-bit of gprT1 (eax)
#define gprT2b cx // Low 16-bit of gprT2 (ecx)
#define gprF0 ebx // Status Flag 0
#define gprF1 r12d // Status Flag 1
#define gprF2 r13d // Status Flag 2
#define gprF3 r14d // Status Flag 3
#define gprF0 r12d // Status Flag 0
#define gprF1 r13d // Status Flag 1
#define gprF2 r14d // Status Flag 2
#define gprF3 r15d // Status Flag 3
// Function Params
#define mP microVU& mVU, int recPass