1 files changed, 680 insertions, 0 deletions

diff --git a/src/common/abi.cpp b/src/common/abi.cpp
new file mode 100644
index 000000000..d1892ad48
--- /dev/null
+++ b/src/common/abi.cpp
@@ -0,0 +1,680 @@
+// Copyright (C) 2003 Dolphin Project.
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 2.0 or later versions.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License 2.0 for more details.
+
+// A copy of the GPL 2.0 should have been included with the program.
+// If not, see http://www.gnu.org/licenses/
+
+// Official SVN repository and contact information can be found at
+// http://code.google.com/p/dolphin-emu/
+
+#include "x64_emitter.h"
+#include "abi.h"
+
+using namespace Gen;
+
+// Shared code between Win64 and Unix64
+
+// Sets up a __cdecl function.
+void XEmitter::ABI_EmitPrologue(int maxCallParams)
+{
+#ifdef _M_IX86
+    // Don't really need to do anything
+#elif defined(_M_X86_64)
+#if _WIN32
+    int stacksize = ((maxCallParams + 1) & ~1) * 8 + 8;
+    // Set up a stack frame so that we can call functions
+    // TODO: use maxCallParams
+    SUB(64, R(RSP), Imm8(stacksize));
+#endif
+#else
+#error Arch not supported
+#endif
+}
+
+void XEmitter::ABI_EmitEpilogue(int maxCallParams)
+{
+#ifdef _M_IX86
+    RET();
+#elif defined(_M_X86_64)
+#ifdef _WIN32
+    int stacksize = ((maxCallParams+1)&~1)*8 + 8;
+    ADD(64, R(RSP), Imm8(stacksize));
+#endif
+    RET();
+#else
+#error Arch not supported
+
+
+#endif
+}
+
+#ifdef _M_IX86 // All32
+
+// Shared code between Win32 and Unix32
+void XEmitter::ABI_CallFunction(const void *func) {
+    ABI_AlignStack(0);
+    CALL(func);
+    ABI_RestoreStack(0);
+}
+
+void XEmitter::ABI_CallFunctionC16(const void *func, u16 param1) {
+    ABI_AlignStack(1 * 2);
+    PUSH(16, Imm16(param1));
+    CALL(func);
+    ABI_RestoreStack(1 * 2);
+}
+
+void XEmitter::ABI_CallFunctionCC16(const void *func, u32 param1, u16 param2) {
+    ABI_AlignStack(1 * 2 + 1 * 4);
+    PUSH(16, Imm16(param2));
+    PUSH(32, Imm32(param1));
+    CALL(func);
+    ABI_RestoreStack(1 * 2 + 1 * 4);
+}
+
+void XEmitter::ABI_CallFunctionC(const void *func, u32 param1) {
+    ABI_AlignStack(1 * 4);
+    PUSH(32, Imm32(param1));
+    CALL(func);
+    ABI_RestoreStack(1 * 4);
+}
+
+void XEmitter::ABI_CallFunctionCC(const void *func, u32 param1, u32 param2) {
+    ABI_AlignStack(2 * 4);
+    PUSH(32, Imm32(param2));
+    PUSH(32, Imm32(param1));
+    CALL(func);
+    ABI_RestoreStack(2 * 4);
+}
+
+void XEmitter::ABI_CallFunctionCCC(const void *func, u32 param1, u32 param2, u32 param3) {
+    ABI_AlignStack(3 * 4);
+    PUSH(32, Imm32(param3));
+    PUSH(32, Imm32(param2));
+    PUSH(32, Imm32(param1));
+    CALL(func);
+    ABI_RestoreStack(3 * 4);
+}
+
+void XEmitter::ABI_CallFunctionCCP(const void *func, u32 param1, u32 param2, void *param3) {
+    ABI_AlignStack(3 * 4);
+    PUSH(32, ImmPtr(param3));
+    PUSH(32, Imm32(param2));
+    PUSH(32, Imm32(param1));
+    CALL(func);
+    ABI_RestoreStack(3 * 4);
+}
+
+void XEmitter::ABI_CallFunctionCCCP(const void *func, u32 param1, u32 param2,u32 param3, void *param4) {
+    ABI_AlignStack(4 * 4);
+    PUSH(32, ImmPtr(param4));
+    PUSH(32, Imm32(param3));
+    PUSH(32, Imm32(param2));
+    PUSH(32, Imm32(param1));
+    CALL(func);
+    ABI_RestoreStack(4 * 4);
+}
+
+void XEmitter::ABI_CallFunctionP(const void *func, void *param1) {
+    ABI_AlignStack(1 * 4);
+    PUSH(32, ImmPtr(param1));
+    CALL(func);
+    ABI_RestoreStack(1 * 4);
+}
+
+void XEmitter::ABI_CallFunctionPA(const void *func, void *param1, const Gen::OpArg &arg2) {
+    ABI_AlignStack(2 * 4);
+    PUSH(32, arg2);
+    PUSH(32, ImmPtr(param1));
+    CALL(func);
+    ABI_RestoreStack(2 * 4);
+}
+
+void XEmitter::ABI_CallFunctionPAA(const void *func, void *param1, const Gen::OpArg &arg2, const Gen::OpArg &arg3) {
+    ABI_AlignStack(3 * 4);
+    PUSH(32, arg3);
+    PUSH(32, arg2);
+    PUSH(32, ImmPtr(param1));
+    CALL(func);
+    ABI_RestoreStack(3 * 4);
+}
+
+void XEmitter::ABI_CallFunctionPPC(const void *func, void *param1, void *param2, u32 param3) {
+    ABI_AlignStack(3 * 4);
+    PUSH(32, Imm32(param3));
+    PUSH(32, ImmPtr(param2));
+    PUSH(32, ImmPtr(param1));
+    CALL(func);
+    ABI_RestoreStack(3 * 4);
+}
+
+// Pass a register as a parameter.
+void XEmitter::ABI_CallFunctionR(const void *func, X64Reg reg1) {
+    ABI_AlignStack(1 * 4);
+    PUSH(32, R(reg1));
+    CALL(func);
+    ABI_RestoreStack(1 * 4);
+}
+
+// Pass two registers as parameters.
+void XEmitter::ABI_CallFunctionRR(const void *func, Gen::X64Reg reg1, Gen::X64Reg reg2)
+{
+    ABI_AlignStack(2 * 4);
+    PUSH(32, R(reg2));
+    PUSH(32, R(reg1));
+    CALL(func);
+    ABI_RestoreStack(2 * 4);
+}
+
+void XEmitter::ABI_CallFunctionAC(const void *func, const Gen::OpArg &arg1, u32 param2)
+{
+    ABI_AlignStack(2 * 4);
+    PUSH(32, Imm32(param2));
+    PUSH(32, arg1);
+    CALL(func);
+    ABI_RestoreStack(2 * 4);
+}
+
+void XEmitter::ABI_CallFunctionACC(const void *func, const Gen::OpArg &arg1, u32 param2, u32 param3)
+{
+    ABI_AlignStack(3 * 4);
+    PUSH(32, Imm32(param3));
+    PUSH(32, Imm32(param2));
+    PUSH(32, arg1);
+    CALL(func);
+    ABI_RestoreStack(3 * 4);
+}
+
+void XEmitter::ABI_CallFunctionA(const void *func, const Gen::OpArg &arg1)
+{
+    ABI_AlignStack(1 * 4);
+    PUSH(32, arg1);
+    CALL(func);
+    ABI_RestoreStack(1 * 4);
+}
+
+void XEmitter::ABI_CallFunctionAA(const void *func, const Gen::OpArg &arg1, const Gen::OpArg &arg2)
+{
+    ABI_AlignStack(2 * 4);
+    PUSH(32, arg2);
+    PUSH(32, arg1);
+    CALL(func);
+    ABI_RestoreStack(2 * 4);
+}
+
+void XEmitter::ABI_PushAllCalleeSavedRegsAndAdjustStack() {
+    // Note: 4 * 4 = 16 bytes, so alignment is preserved.
+    PUSH(EBP);
+    PUSH(EBX);
+    PUSH(ESI);
+    PUSH(EDI);
+}
+
+void XEmitter::ABI_PopAllCalleeSavedRegsAndAdjustStack() {
+    POP(EDI);
+    POP(ESI);
+    POP(EBX);
+    POP(EBP);
+}
+
+unsigned int XEmitter::ABI_GetAlignedFrameSize(unsigned int frameSize) {
+    frameSize += 4; // reserve space for return address
+    unsigned int alignedSize =
+#ifdef __GNUC__
+        (frameSize + 15) & -16;
+#else
+        (frameSize + 3) & -4;
+#endif
+    return alignedSize;
+}
+
+
+void XEmitter::ABI_AlignStack(unsigned int frameSize) {
+// Mac OS X requires the stack to be 16-byte aligned before every call.
+// Linux requires the stack to be 16-byte aligned before calls that put SSE
+// vectors on the stack, but since we do not keep track of which calls do that,
+// it is effectively every call as well.
+// Windows binaries compiled with MSVC do not have such a restriction*, but I
+// expect that GCC on Windows acts the same as GCC on Linux in this respect.
+// It would be nice if someone could verify this.
+// *However, the MSVC optimizing compiler assumes a 4-byte-aligned stack at times.
+    unsigned int fillSize =
+        ABI_GetAlignedFrameSize(frameSize) - (frameSize + 4);
+    if (fillSize != 0) {
+        SUB(32, R(ESP), Imm8(fillSize));
+    }
+}
+
+void XEmitter::ABI_RestoreStack(unsigned int frameSize) {
+    unsigned int alignedSize = ABI_GetAlignedFrameSize(frameSize);
+    alignedSize -= 4; // return address is POPped at end of call
+    if (alignedSize != 0) {
+        ADD(32, R(ESP), Imm8(alignedSize));
+    }
+}
+
+#else //64bit
+
+// Common functions
+void XEmitter::ABI_CallFunction(const void *func) {
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+void XEmitter::ABI_CallFunctionC16(const void *func, u16 param1) {
+    MOV(32, R(ABI_PARAM1), Imm32((u32)param1));
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+void XEmitter::ABI_CallFunctionCC16(const void *func, u32 param1, u16 param2) {
+    MOV(32, R(ABI_PARAM1), Imm32(param1));
+    MOV(32, R(ABI_PARAM2), Imm32((u32)param2));
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+        && distance <  0xFFFFFFFF80000000ULL) {
+            // Far call
+            MOV(64, R(RAX), ImmPtr(func));
+            CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+void XEmitter::ABI_CallFunctionC(const void *func, u32 param1) {
+    MOV(32, R(ABI_PARAM1), Imm32(param1));
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+void XEmitter::ABI_CallFunctionCC(const void *func, u32 param1, u32 param2) {
+    MOV(32, R(ABI_PARAM1), Imm32(param1));
+    MOV(32, R(ABI_PARAM2), Imm32(param2));
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+void XEmitter::ABI_CallFunctionCCC(const void *func, u32 param1, u32 param2, u32 param3) {
+    MOV(32, R(ABI_PARAM1), Imm32(param1));
+    MOV(32, R(ABI_PARAM2), Imm32(param2));
+    MOV(32, R(ABI_PARAM3), Imm32(param3));
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+void XEmitter::ABI_CallFunctionCCP(const void *func, u32 param1, u32 param2, void *param3) {
+    MOV(32, R(ABI_PARAM1), Imm32(param1));
+    MOV(32, R(ABI_PARAM2), Imm32(param2));
+    MOV(64, R(ABI_PARAM3), ImmPtr(param3));
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+void XEmitter::ABI_CallFunctionCCCP(const void *func, u32 param1, u32 param2, u32 param3, void *param4) {
+    MOV(32, R(ABI_PARAM1), Imm32(param1));
+    MOV(32, R(ABI_PARAM2), Imm32(param2));
+    MOV(32, R(ABI_PARAM3), Imm32(param3));
+    MOV(64, R(ABI_PARAM4), ImmPtr(param4));
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+void XEmitter::ABI_CallFunctionP(const void *func, void *param1) {
+    MOV(64, R(ABI_PARAM1), ImmPtr(param1));
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+void XEmitter::ABI_CallFunctionPA(const void *func, void *param1, const Gen::OpArg &arg2) {
+    MOV(64, R(ABI_PARAM1), ImmPtr(param1));
+    if (!arg2.IsSimpleReg(ABI_PARAM2))
+        MOV(32, R(ABI_PARAM2), arg2);
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+void XEmitter::ABI_CallFunctionPAA(const void *func, void *param1, const Gen::OpArg &arg2, const Gen::OpArg &arg3) {
+    MOV(64, R(ABI_PARAM1), ImmPtr(param1));
+    if (!arg2.IsSimpleReg(ABI_PARAM2))
+        MOV(32, R(ABI_PARAM2), arg2);
+    if (!arg3.IsSimpleReg(ABI_PARAM3))
+        MOV(32, R(ABI_PARAM3), arg3);
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+void XEmitter::ABI_CallFunctionPPC(const void *func, void *param1, void *param2, u32 param3) {
+    MOV(64, R(ABI_PARAM1), ImmPtr(param1));
+    MOV(64, R(ABI_PARAM2), ImmPtr(param2));
+    MOV(32, R(ABI_PARAM3), Imm32(param3));
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+// Pass a register as a parameter.
+void XEmitter::ABI_CallFunctionR(const void *func, X64Reg reg1) {
+    if (reg1 != ABI_PARAM1)
+        MOV(32, R(ABI_PARAM1), R(reg1));
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+// Pass two registers as parameters.
+void XEmitter::ABI_CallFunctionRR(const void *func, X64Reg reg1, X64Reg reg2) {
+    if (reg2 != ABI_PARAM1) {
+        if (reg1 != ABI_PARAM1)
+            MOV(64, R(ABI_PARAM1), R(reg1));
+        if (reg2 != ABI_PARAM2)
+            MOV(64, R(ABI_PARAM2), R(reg2));
+    } else {
+        if (reg2 != ABI_PARAM2)
+            MOV(64, R(ABI_PARAM2), R(reg2));
+        if (reg1 != ABI_PARAM1)
+            MOV(64, R(ABI_PARAM1), R(reg1));
+    }
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+void XEmitter::ABI_CallFunctionAC(const void *func, const Gen::OpArg &arg1, u32 param2)
+{
+    if (!arg1.IsSimpleReg(ABI_PARAM1))
+        MOV(32, R(ABI_PARAM1), arg1);
+    MOV(32, R(ABI_PARAM2), Imm32(param2));
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+void XEmitter::ABI_CallFunctionACC(const void *func, const Gen::OpArg &arg1, u32 param2, u32 param3)
+{
+    if (!arg1.IsSimpleReg(ABI_PARAM1))
+        MOV(32, R(ABI_PARAM1), arg1);
+    MOV(32, R(ABI_PARAM2), Imm32(param2));
+    MOV(64, R(ABI_PARAM3), Imm64(param3));
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+void XEmitter::ABI_CallFunctionA(const void *func, const Gen::OpArg &arg1)
+{
+    if (!arg1.IsSimpleReg(ABI_PARAM1))
+        MOV(32, R(ABI_PARAM1), arg1);
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+void XEmitter::ABI_CallFunctionAA(const void *func, const Gen::OpArg &arg1, const Gen::OpArg &arg2)
+{
+    if (!arg1.IsSimpleReg(ABI_PARAM1))
+        MOV(32, R(ABI_PARAM1), arg1);
+    if (!arg2.IsSimpleReg(ABI_PARAM2))
+        MOV(32, R(ABI_PARAM2), arg2);
+    u64 distance = u64(func) - (u64(code) + 5);
+    if (distance >= 0x0000000080000000ULL
+     && distance <  0xFFFFFFFF80000000ULL) {
+        // Far call
+        MOV(64, R(RAX), ImmPtr(func));
+        CALLptr(R(RAX));
+    } else {
+        CALL(func);
+    }
+}
+
+unsigned int XEmitter::ABI_GetAlignedFrameSize(unsigned int frameSize) {
+    return frameSize;
+}
+
+#ifdef _WIN32
+
+// The Windows x64 ABI requires XMM6 - XMM15 to be callee saved.  10 regs.
+// But, not saving XMM4 and XMM5 breaks things in VS 2010, even though they are volatile regs.
+// Let's just save all 16.
+const int XMM_STACK_SPACE = 16 * 16;
+
+// Win64 Specific Code
+void XEmitter::ABI_PushAllCalleeSavedRegsAndAdjustStack() {
+    //we only want to do this once
+    PUSH(RBX);
+    PUSH(RSI);
+    PUSH(RDI);
+    PUSH(RBP);
+    PUSH(R12);
+    PUSH(R13);
+    PUSH(R14);
+    PUSH(R15);
+    ABI_AlignStack(0);
+
+    // Do this after aligning, because before it's offset by 8.
+    SUB(64, R(RSP), Imm32(XMM_STACK_SPACE));
+    for (int i = 0; i < 16; ++i)
+        MOVAPS(MDisp(RSP, i * 16), (X64Reg)(XMM0 + i));
+}
+
+void XEmitter::ABI_PopAllCalleeSavedRegsAndAdjustStack() {
+    for (int i = 0; i < 16; ++i)
+        MOVAPS((X64Reg)(XMM0 + i), MDisp(RSP, i * 16));
+    ADD(64, R(RSP), Imm32(XMM_STACK_SPACE));
+
+    ABI_RestoreStack(0);
+    POP(R15);
+    POP(R14);
+    POP(R13);
+    POP(R12);
+    POP(RBP);
+    POP(RDI);
+    POP(RSI);
+    POP(RBX);
+}
+
+// Win64 Specific Code
+void XEmitter::ABI_PushAllCallerSavedRegsAndAdjustStack() {
+    PUSH(RCX);
+    PUSH(RDX);
+    PUSH(RSI);
+    PUSH(RDI);
+    PUSH(R8);
+    PUSH(R9);
+    PUSH(R10);
+    PUSH(R11);
+    // TODO: Callers preserve XMM4-5 (XMM0-3 are args.)
+    ABI_AlignStack(0);
+}
+
+void XEmitter::ABI_PopAllCallerSavedRegsAndAdjustStack() {
+    ABI_RestoreStack(0);
+    POP(R11);
+    POP(R10);
+    POP(R9);
+    POP(R8);
+    POP(RDI);
+    POP(RSI);
+    POP(RDX);
+    POP(RCX);
+}
+
+void XEmitter::ABI_AlignStack(unsigned int /*frameSize*/) {
+    SUB(64, R(RSP), Imm8(0x28));
+}
+
+void XEmitter::ABI_RestoreStack(unsigned int /*frameSize*/) {
+    ADD(64, R(RSP), Imm8(0x28));
+}
+
+#else
+// Unix64 Specific Code
+void XEmitter::ABI_PushAllCalleeSavedRegsAndAdjustStack() {
+    PUSH(RBX);
+    PUSH(RBP);
+    PUSH(R12);
+    PUSH(R13);
+    PUSH(R14);
+    PUSH(R15);
+    PUSH(R15); //just to align stack. duped push/pop doesn't hurt.
+    // TODO: XMM?
+}
+
+void XEmitter::ABI_PopAllCalleeSavedRegsAndAdjustStack() {
+    POP(R15);
+    POP(R15);
+    POP(R14);
+    POP(R13);
+    POP(R12);
+    POP(RBP);
+    POP(RBX);
+}
+
+void XEmitter::ABI_PushAllCallerSavedRegsAndAdjustStack() {
+    PUSH(RCX);
+    PUSH(RDX);
+    PUSH(RSI);
+    PUSH(RDI);
+    PUSH(R8);
+    PUSH(R9);
+    PUSH(R10);
+    PUSH(R11);
+    PUSH(R11);
+}
+
+void XEmitter::ABI_PopAllCallerSavedRegsAndAdjustStack() {
+    POP(R11);
+    POP(R11);
+    POP(R10);
+    POP(R9);
+    POP(R8);
+    POP(RDI);
+    POP(RSI);
+    POP(RDX);
+    POP(RCX);
+}
+
+void XEmitter::ABI_AlignStack(unsigned int /*frameSize*/) {
+    SUB(64, R(RSP), Imm8(0x08));
+}
+
+void XEmitter::ABI_RestoreStack(unsigned int /*frameSize*/) {
+    ADD(64, R(RSP), Imm8(0x08));
+}
+
+#endif // WIN32
+
+#endif // 32bit