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a32_emit_x64: Make {Read,Write}Memory member functions of A32EmitX64

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This commit is contained in:
MerryMage 2020-04-08 12:37:18 +01:00
parent 5267dbb8cf
commit c232ad7971
2 changed files with 96 additions and 30 deletions
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120
src/backend/x64/a32_emit_x64.cpp
View file

@ -795,26 +795,56 @@ static Xbyak::RegExp EmitVAddrLookup(BlockOfCode& code, RegAlloc& reg_alloc,
return page_table + tmp;
}
template <typename T, T (A32::UserCallbacks::*raw_fn)(A32::VAddr)>
static void ReadMemory(BlockOfCode& code, RegAlloc& reg_alloc, IR::Inst* inst, const A32::UserConfig& config, const CodePtr wrapped_fn) {
constexpr size_t bit_size = Common::BitSize<T>();
auto args = reg_alloc.GetArgumentInfo(inst);
template<std::size_t bitsize>
void A32EmitX64::ReadMemory(A32EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
if (!config.page_table) {
reg_alloc.HostCall(inst, {}, args[0]);
Devirtualize<raw_fn>(config.callbacks).EmitCall(code);
ctx.reg_alloc.HostCall(inst, {}, args[0]);
switch (bitsize) {
case 8:
Devirtualize<&A32::UserCallbacks::MemoryRead8>(config.callbacks).EmitCall(code);
break;
case 16:
Devirtualize<&A32::UserCallbacks::MemoryRead16>(config.callbacks).EmitCall(code);
break;
case 32:
Devirtualize<&A32::UserCallbacks::MemoryRead32>(config.callbacks).EmitCall(code);
break;
case 64:
Devirtualize<&A32::UserCallbacks::MemoryRead64>(config.callbacks).EmitCall(code);
break;
default:
UNREACHABLE();
}
return;
}
const auto wrapped_fn = [this]{
switch (bitsize) {
case 8:
return read_memory_8;
case 16:
return read_memory_16;
case 32:
return read_memory_32;
case 64:
return read_memory_64;
default:
UNREACHABLE();
return static_cast<const void*>(nullptr);
}
}();
Xbyak::Label abort, end;
reg_alloc.UseScratch(args[0], ABI_PARAM2);
ctx.reg_alloc.UseScratch(args[0], ABI_PARAM2);
const Xbyak::Reg64 vaddr = code.ABI_PARAM2;
const Xbyak::Reg64 value = reg_alloc.ScratchGpr({ABI_RETURN});
const Xbyak::Reg64 value = ctx.reg_alloc.ScratchGpr({ABI_RETURN});
const auto src_ptr = EmitVAddrLookup(code, reg_alloc, config, abort, vaddr, value);
switch (bit_size) {
const auto src_ptr = EmitVAddrLookup(code, ctx.reg_alloc, config, abort, vaddr, value);
switch (bitsize) {
case 8:
code.movzx(value.cvt32(), code.byte[src_ptr]);
break;
@ -836,31 +866,61 @@ static void ReadMemory(BlockOfCode& code, RegAlloc& reg_alloc, IR::Inst* inst, c
code.call(wrapped_fn);
code.L(end);
reg_alloc.DefineValue(inst, value);
ctx.reg_alloc.DefineValue(inst, value);
}
template <typename T, void (A32::UserCallbacks::*raw_fn)(A32::VAddr, T)>
static void WriteMemory(BlockOfCode& code, RegAlloc& reg_alloc, IR::Inst* inst, const A32::UserConfig& config, const CodePtr wrapped_fn) {
constexpr size_t bit_size = Common::BitSize<T>();
auto args = reg_alloc.GetArgumentInfo(inst);
template<std::size_t bitsize>
void A32EmitX64::WriteMemory(A32EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
if (!config.page_table) {
reg_alloc.HostCall(nullptr, {}, args[0], args[1]);
Devirtualize<raw_fn>(config.callbacks).EmitCall(code);
ctx.reg_alloc.HostCall(nullptr, {}, args[0], args[1]);
switch (bitsize) {
case 8:
Devirtualize<&A32::UserCallbacks::MemoryWrite8>(config.callbacks).EmitCall(code);
break;
case 16:
Devirtualize<&A32::UserCallbacks::MemoryWrite16>(config.callbacks).EmitCall(code);
break;
case 32:
Devirtualize<&A32::UserCallbacks::MemoryWrite32>(config.callbacks).EmitCall(code);
break;
case 64:
Devirtualize<&A32::UserCallbacks::MemoryWrite64>(config.callbacks).EmitCall(code);
break;
default:
UNREACHABLE();
}
return;
}
const auto wrapped_fn = [this]{
switch (bitsize) {
case 8:
return write_memory_8;
case 16:
return write_memory_16;
case 32:
return write_memory_32;
case 64:
return write_memory_64;
default:
UNREACHABLE();
return static_cast<const void*>(nullptr);
}
}();
Xbyak::Label abort, end;
reg_alloc.ScratchGpr({ABI_RETURN});
reg_alloc.UseScratch(args[0], ABI_PARAM2);
reg_alloc.UseScratch(args[1], ABI_PARAM3);
ctx.reg_alloc.ScratchGpr({ABI_RETURN});
ctx.reg_alloc.UseScratch(args[0], ABI_PARAM2);
ctx.reg_alloc.UseScratch(args[1], ABI_PARAM3);
const Xbyak::Reg64 vaddr = code.ABI_PARAM2;
const Xbyak::Reg64 value = code.ABI_PARAM3;
const auto dest_ptr = EmitVAddrLookup(code, reg_alloc, config, abort, vaddr);
switch (bit_size) {
const auto dest_ptr = EmitVAddrLookup(code, ctx.reg_alloc, config, abort, vaddr);
switch (bitsize) {
case 8:
code.mov(code.byte[dest_ptr], value.cvt8());
break;
@ -884,35 +944,35 @@ static void WriteMemory(BlockOfCode& code, RegAlloc& reg_alloc, IR::Inst* inst,
}
void A32EmitX64::EmitA32ReadMemory8(A32EmitContext& ctx, IR::Inst* inst) {
ReadMemory<u8, &A32::UserCallbacks::MemoryRead8>(code, ctx.reg_alloc, inst, config, read_memory_8);
ReadMemory<8>(ctx, inst);
}
void A32EmitX64::EmitA32ReadMemory16(A32EmitContext& ctx, IR::Inst* inst) {
ReadMemory<u16, &A32::UserCallbacks::MemoryRead16>(code, ctx.reg_alloc, inst, config, read_memory_16);
ReadMemory<16>(ctx, inst);
}
void A32EmitX64::EmitA32ReadMemory32(A32EmitContext& ctx, IR::Inst* inst) {
ReadMemory<u32, &A32::UserCallbacks::MemoryRead32>(code, ctx.reg_alloc, inst, config, read_memory_32);
ReadMemory<32>(ctx, inst);
}
void A32EmitX64::EmitA32ReadMemory64(A32EmitContext& ctx, IR::Inst* inst) {
ReadMemory<u64, &A32::UserCallbacks::MemoryRead64>(code, ctx.reg_alloc, inst, config, read_memory_64);
ReadMemory<64>(ctx, inst);
}
void A32EmitX64::EmitA32WriteMemory8(A32EmitContext& ctx, IR::Inst* inst) {
WriteMemory<u8, &A32::UserCallbacks::MemoryWrite8>(code, ctx.reg_alloc, inst, config, write_memory_8);
WriteMemory<8>(ctx, inst);
}
void A32EmitX64::EmitA32WriteMemory16(A32EmitContext& ctx, IR::Inst* inst) {
WriteMemory<u16, &A32::UserCallbacks::MemoryWrite16>(code, ctx.reg_alloc, inst, config, write_memory_16);
WriteMemory<16>(ctx, inst);
}
void A32EmitX64::EmitA32WriteMemory32(A32EmitContext& ctx, IR::Inst* inst) {
WriteMemory<u32, &A32::UserCallbacks::MemoryWrite32>(code, ctx.reg_alloc, inst, config, write_memory_32);
WriteMemory<32>(ctx, inst);
}
void A32EmitX64::EmitA32WriteMemory64(A32EmitContext& ctx, IR::Inst* inst) {
WriteMemory<u64, &A32::UserCallbacks::MemoryWrite64>(code, ctx.reg_alloc, inst, config, write_memory_64);
WriteMemory<64>(ctx, inst);
}
template <typename T, void (A32::UserCallbacks::*fn)(A32::VAddr, T)>

6
src/backend/x64/a32_emit_x64.h
View file

@ -84,6 +84,12 @@ protected:
// Helpers
std::string LocationDescriptorToFriendlyName(const IR::LocationDescriptor&) const override;
// Memory access helpers
template<std::size_t bitsize>
void ReadMemory(A32EmitContext& ctx, IR::Inst* inst);
template<std::size_t bitsize>
void WriteMemory(A32EmitContext& ctx, IR::Inst* inst);
// Terminal instruction emitters
void EmitSetUpperLocationDescriptor(IR::LocationDescriptor new_location, IR::LocationDescriptor old_location);
void EmitTerminalImpl(IR::Term::Interpret terminal, IR::LocationDescriptor initial_location) override;