fabi/Xenia-Canary
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Messing with flags. subficx sometimes still wrong.

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This commit is contained in:
Ben Vanik
2014-01-28 22:49:51 -08:00
parent 62ced2742e
commit 53d4cbf2c5
2 changed files with 42 additions and 22 deletions
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11
src/alloy/backend/x64/lowering/lowering_sequences.cc
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@@ -113,13 +113,6 @@ uint64_t LoadClock(void* raw_context) {
return time;
}
void CallNative(X64Emitter& e, void* target) {
e.mov(e.rax, (uint64_t)target);
e.call(e.rax);
e.mov(e.rcx, e.qword[e.rsp + 0]);
e.mov(e.rdx, e.qword[e.rcx + 8]); // membase
}
// TODO(benvanik): fancy stuff.
void* ResolveFunctionSymbol(void* raw_context, FunctionInfo* symbol_info) {
// TODO(benvanik): generate this thunk at runtime? or a shim?
@@ -1161,6 +1154,8 @@ table->AddSequence(OPCODE_STORE, [](X64Emitter& e, Instr*& i) {
// eh?
e.bswap(e.r8);
CallNative(e, cbs->write);
i = e.Advance(i);
return true;
}
cbs = cbs->next;
}
@@ -1534,6 +1529,7 @@ table->AddSequence(OPCODE_COMPARE_UGE, [](X64Emitter& e, Instr*& i) {
table->AddSequence(OPCODE_DID_CARRY, [](X64Emitter& e, Instr*& i) {
Reg8 dest;
e.BeginOp(i->dest, dest, REG_DEST);
LoadEflags(e);
e.setc(dest);
e.EndOp(dest);
i = e.Advance(i);
@@ -1543,6 +1539,7 @@ table->AddSequence(OPCODE_DID_CARRY, [](X64Emitter& e, Instr*& i) {
table->AddSequence(OPCODE_DID_OVERFLOW, [](X64Emitter& e, Instr*& i) {
Reg8 dest;
e.BeginOp(i->dest, dest, REG_DEST);
LoadEflags(e);
e.seto(dest);
e.EndOp(dest);
i = e.Advance(i);