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Core/Common: Automatically emit a MOV in ABI_CallFunction* when the function 

pointer cannot be reached by 32bit displacement.

RAX is caller save and non-parameter in all 64 bit ABIs, so it should be safe
to clobber it on function call.


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6248 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
pierre 2010-10-02 20:04:03 +00:00
parent c0e90d4b39
commit aaeb21fe3b
1 changed files with 99 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

90
Source/Core/Common/Src/ABI.cpp
View File

@ -207,43 +207,85 @@ void XEmitter::ABI_RestoreStack(unsigned int frameSize) {
// Common functions
void XEmitter::ABI_CallFunction(void *func) {
u64 distance = u64(func) - (u64(code) + 5);
if (distance >= 0x0000000080000000ULL
&& distance < 0xFFFFFFFF80000000ULL) {
// Far call
//MOV(64, R(RAX), Imm64((u64)func));
//CALLptr(R(RAX));
MOV(64, R(RAX), Imm64((u64)func));
CALLptr(R(RAX));
} else {
CALL(func);
}
}
void XEmitter::ABI_CallFunctionC16(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), Imm64((u64)func));
//CALLptr(R(RAX));
MOV(64, R(RAX), Imm64((u64)func));
CALLptr(R(RAX));
} else {
CALL(func);
}
}
void XEmitter::ABI_CallFunctionC(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), Imm64((u64)func));
CALLptr(R(RAX));
} else {
CALL(func);
}
}
void XEmitter::ABI_CallFunctionCC(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), Imm64((u64)func));
CALLptr(R(RAX));
} else {
CALL(func);
}
}
void XEmitter::ABI_CallFunctionCCC(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), Imm64((u64)func));
CALLptr(R(RAX));
} else {
CALL(func);
}
}
void XEmitter::ABI_CallFunctionCCP(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), Imm64((u64)param3));
u64 distance = u64(func) - (u64(code) + 5);
if (distance >= 0x0000000080000000ULL
&& distance < 0xFFFFFFFF80000000ULL) {
// Far call
MOV(64, R(RAX), Imm64((u64)func));
CALLptr(R(RAX));
} else {
CALL(func);
}
}
void XEmitter::ABI_CallFunctionCCCP(void *func, u32 param1, u32 param2, u32 param3, void *param4) {
@ -251,14 +293,30 @@ void XEmitter::ABI_CallFunctionCCCP(void *func, u32 param1, u32 param2, u32 para
MOV(32, R(ABI_PARAM2), Imm32(param2));
MOV(32, R(ABI_PARAM3), Imm32(param3));
MOV(64, R(ABI_PARAM4), Imm64((u64)param4));
u64 distance = u64(func) - (u64(code) + 5);
if (distance >= 0x0000000080000000ULL
&& distance < 0xFFFFFFFF80000000ULL) {
// Far call
MOV(64, R(RAX), Imm64((u64)func));
CALLptr(R(RAX));
} else {
CALL(func);
}
}
// Pass a register as a parameter.
void XEmitter::ABI_CallFunctionR(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), Imm64((u64)func));
CALLptr(R(RAX));
} else {
CALL(func);
}
}
// Pass two registers as parameters.
@ -274,7 +332,15 @@ void XEmitter::ABI_CallFunctionRR(void *func, X64Reg reg1, X64Reg 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), Imm64((u64)func));
CALLptr(R(RAX));
} else {
CALL(func);
}
}
void XEmitter::ABI_CallFunctionAC(void *func, const Gen::OpArg &arg1, u32 param2)
@ -282,14 +348,30 @@ void XEmitter::ABI_CallFunctionAC(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), Imm64((u64)func));
CALLptr(R(RAX));
} else {
CALL(func);
}
}
void XEmitter::ABI_CallFunctionA(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), Imm64((u64)func));
CALLptr(R(RAX));
} else {
CALL(func);
}
}
unsigned int XEmitter::ABI_GetAlignedFrameSize(unsigned int frameSize) {