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Undo broken extension-word DS assumption.

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8 failures.
This commit is contained in:
Thomas Harte 2023-09-28 22:17:14 -04:00
parent a24e17c320
commit b76899f2bc
2 changed files with 25 additions and 17 deletions
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3
InstructionSets/x86/Instruction.hpp
View File

@ -906,9 +906,6 @@ template<bool is_32bit> class Instruction {
++extension;
}
if(has_length_extension()) {
// As per the rule stated for segment(), this class provides ::DS for any instruction
// that doesn't have a segment override.
if(segment_override == Source::None) segment_override = Source::DS;
extensions_[extension] = ImmediateT(
(length << 6) | (int(repetition) << 4) | ((int(segment_override) & 7) << 1) | int(lock)
);

39
OSBindings/Mac/Clock SignalTests/8088Tests.mm
View File

@ -146,7 +146,7 @@ std::string to_string(
- (NSArray<NSString *> *)testFiles {
NSString *path = [NSString stringWithUTF8String:TestSuiteHome];
NSSet *allowList = [NSSet setWithArray:@[
@"F6.7.json.gz",
// @"F6.7.json.gz",
]];
// Unofficial opcodes; ignored for now.
@ -286,7 +286,7 @@ std::string to_string(
return [[NSString stringWithUTF8String:operation.c_str()] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
}
- (bool)applyDecodingTest:(NSDictionary *)test file:(NSString *)file {
- (bool)applyDecodingTest:(NSDictionary *)test file:(NSString *)file assert:(BOOL)assert {
using Decoder = InstructionSet::x86::Decoder<InstructionSet::x86::Model::i8086>;
Decoder decoder;
@ -306,15 +306,17 @@ std::string to_string(
};
const auto decoded = decoder.decode(data.data(), data.size());
XCTAssert(
decoded.first == [encoding count],
"Wrong length of instruction decoded for %@ — decoded %d rather than %lu from %@; file %@",
test[@"name"],
decoded.first,
(unsigned long)[encoding count],
hex_instruction(),
file
);
if(assert) {
XCTAssert(
decoded.first == [encoding count],
"Wrong length of instruction decoded for %@ — decoded %d rather than %lu from %@; file %@",
test[@"name"],
decoded.first,
(unsigned long)[encoding count],
hex_instruction(),
file
);
}
if(decoded.first != [encoding count]) {
return false;
}
@ -365,7 +367,16 @@ std::string to_string(
--adjustment;
}
XCTAssert(isEqual, "%@ doesn't match %@ or similar, was %@ within %@", test[@"name"], [decodings anyObject], hex_instruction(), file);
if(assert) {
XCTAssert(
isEqual,
"%@ doesn't match %@ or similar, was %@ within %@",
test[@"name"],
[decodings anyObject],
hex_instruction(),
file
);
}
return isEqual;
}
@ -380,11 +391,11 @@ std::string to_string(
NSUInteger successes = 0;
for(NSDictionary *test in testsInFile) {
// A single failure per instruction is fine.
if(![self applyDecodingTest:test file:file]) {
if(![self applyDecodingTest:test file:file assert:YES]) {
[failures addObject:file];
// Attempt a second decoding, to provide a debugger hook.
[self applyDecodingTest:test file:file];
[self applyDecodingTest:test file:file assert:NO];
break;
}