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Added comparison operator for --break_on_instruction.

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gibbed
2016-06-19 21:01:18 -05:00
parent b5bef8c54d
commit 450ca87120
4 changed files with 50 additions and 15 deletions
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62
src/xenia/cpu/ppc/ppc_hir_builder.cc
View File

@@ -157,21 +157,7 @@ bool PPCHIRBuilder::Emit(GuestFunction* function, uint32_t flags) {
ContextBarrier();
}
if (address == FLAGS_break_on_instruction) {
Comment("--break-on-instruction target");
if (FLAGS_break_condition_gpr < 0) {
DebugBreak();
} else {
auto left = LoadGPR(FLAGS_break_condition_gpr);
auto right = LoadConstantUint64(FLAGS_break_condition_value);
if (FLAGS_break_condition_truncate) {
left = Truncate(left, INT32_TYPE);
right = Truncate(right, INT32_TYPE);
}
TrapTrue(CompareEQ(left, right));
}
}
MaybeBreakOnInstruction(address);
InstrData i;
i.address = address;
@@ -194,6 +180,52 @@ bool PPCHIRBuilder::Emit(GuestFunction* function, uint32_t flags) {
return Finalize();
}
void PPCHIRBuilder::MaybeBreakOnInstruction(uint32_t address) {
if (address != FLAGS_break_on_instruction) {
return;
}
Comment("--break-on-instruction target");
if (FLAGS_break_condition_gpr < 0) {
DebugBreak();
return;
}
auto left = LoadGPR(FLAGS_break_condition_gpr);
auto right = LoadConstantUint64(FLAGS_break_condition_value);
if (FLAGS_break_condition_truncate) {
left = Truncate(left, INT32_TYPE);
right = Truncate(right, INT32_TYPE);
}
auto op = FLAGS_break_condition_op.c_str();
// TODO(rick): table?
if (strcasecmp(op, "eq") == 0) {
TrapTrue(CompareEQ(left, right));
} else if (strcasecmp(op, "ne") == 0) {
TrapTrue(CompareNE(left, right));
} else if (strcasecmp(op, "slt") == 0) {
TrapTrue(CompareSLT(left, right));
} else if (strcasecmp(op, "sle") == 0) {
TrapTrue(CompareSLE(left, right));
} else if (strcasecmp(op, "sgt") == 0) {
TrapTrue(CompareSGT(left, right));
} else if (strcasecmp(op, "sge") == 0) {
TrapTrue(CompareSGE(left, right));
} else if (strcasecmp(op, "ult") == 0) {
TrapTrue(CompareULT(left, right));
} else if (strcasecmp(op, "ule") == 0) {
TrapTrue(CompareULE(left, right));
} else if (strcasecmp(op, "ugt") == 0) {
TrapTrue(CompareUGT(left, right));
} else if (strcasecmp(op, "uge") == 0) {
TrapTrue(CompareUGE(left, right));
} else {
assert_always();
}
}
void PPCHIRBuilder::AnnotateLabel(uint32_t address, Label* label) {
char name_buffer[13];
snprintf(name_buffer, xe::countof(name_buffer), "loc_%.8X", address);

1
src/xenia/cpu/ppc/ppc_hir_builder.h
View File

@@ -82,6 +82,7 @@ class PPCHIRBuilder : public hir::HIRBuilder {
Value* LoadReserved();
private:
void MaybeBreakOnInstruction(uint32_t address);
void AnnotateLabel(uint32_t address, Label* label);
PPCFrontend* frontend_;