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Do a de minimis checking of memory accesses.

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This commit is contained in:
Thomas Harte 2024-03-09 15:18:35 -05:00
parent a2896b9bd0
commit 4e7a63f792
1 changed files with 38 additions and 3 deletions
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41
OSBindings/Mac/Clock SignalTests/ARMDecoderTests.mm
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@ -64,13 +64,41 @@ struct Memory {
struct MemoryLedger {
template <typename IntT>
bool write(uint32_t address, IntT source, Mode, bool) {
return false; // TODO.
if(write_pointer == writes.size() || writes[write_pointer].size != sizeof(IntT) || writes[write_pointer].address != address || writes[write_pointer].value != source) {
throw 0;
}
++write_pointer;
return true;
}
template <typename IntT>
bool read(uint32_t address, IntT &source, Mode, bool) {
return false; // TODO.
if(read_pointer == reads.size() || reads[read_pointer].size != sizeof(IntT) || reads[read_pointer].address != address) {
throw 0;
}
source = reads[read_pointer].value;
++read_pointer;
return true;
}
struct Access {
size_t size;
uint32_t address;
uint32_t value;
};
template <typename IntT>
void add_access(bool is_read, uint32_t address, IntT value) {
auto &read = is_read ? reads.emplace_back() : writes.emplace_back();
read.address = address;
read.value = value;
read.size = sizeof(IntT);
}
std::vector<Access> reads;
std::vector<Access> writes;
size_t read_pointer = 0;
size_t write_pointer = 0;
};
}
@ -339,7 +367,10 @@ struct MemoryLedger {
execute<Model::ARMv2>(instruction, *test);
for(uint32_t c = 0; c < 15; c++) {
XCTAssertEqual(regs[c], registers[c]);
XCTAssertEqual(
regs[c],
registers[c],
@"R%d doesn't match during instruction %08x", c, instruction);
}
}
continue;
@ -353,21 +384,25 @@ struct MemoryLedger {
if(label == "r.b") {
// Capture a byte read for provision.
test->bus.add_access<uint8_t>(true, address, value);
continue;
}
if(label == "r.w") {
// Capture a word read for provision.
test->bus.add_access<uint32_t>(true, address, value);
continue;
}
if(label == "w.b") {
// Capture a byte write for comparison.
test->bus.add_access<uint8_t>(false, address, value);
continue;
}
if(label == "w.w") {
// Capture a word write for comparison.
test->bus.add_access<uint32_t>(false, address, value);
continue;
}
}