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Test all ABCDs.

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This commit is contained in:
Thomas Harte 2022-04-18 20:00:39 -04:00
parent 41fb18e573
commit 7c29305788
1 changed files with 42 additions and 0 deletions
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42
OSBindings/Mac/Clock SignalTests/m68kDecoderTests.mm
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@ -15,8 +15,34 @@ using namespace InstructionSet::M68k;
@interface m68kDecoderTests : XCTestCase
@end
namespace {
template <int index> NSString *operand(Preinstruction instruction) {
switch(instruction.mode<index>()) {
default: return @"";
case AddressingMode::DataRegisterDirect:
return [NSString stringWithFormat:@"D%d", instruction.reg<index>()];
case AddressingMode::AddressRegisterDirect:
return [NSString stringWithFormat:@"A%d", instruction.reg<index>()];
case AddressingMode::AddressRegisterIndirect:
return [NSString stringWithFormat:@"(A%d)", instruction.reg<index>()];
case AddressingMode::AddressRegisterIndirectWithPostincrement:
return [NSString stringWithFormat:@"(A%d)+", instruction.reg<index>()];
case AddressingMode::AddressRegisterIndirectWithPredecrement:
return [NSString stringWithFormat:@"-(A%d)", instruction.reg<index>()];
}
}
}
@implementation m68kDecoderTests
- (NSString *)operand:(int)operand instruction:(Preinstruction)instruction {
return @"";
}
- (void)testInstructionSpecs {
NSData *const testData =
[NSData dataWithContentsOfURL:
@ -42,6 +68,22 @@ using namespace InstructionSet::M68k;
XCTAssertEqualObjects(@"None", expected, "%@ should decode as %@", instrName, expected);
continue;
}
NSString *instruction;
switch(found.operation) {
case Operation::ABCD: instruction = @"ABCD"; break;
// For now, skip any unmapped operations.
default: continue;
}
NSString *const operand1 = operand<0>(found);
NSString *const operand2 = operand<1>(found);
if(operand1.length) instruction = [instruction stringByAppendingFormat:@" %@", operand1];
if(operand2.length) instruction = [instruction stringByAppendingFormat:@", %@", operand2];
XCTAssertEqualObjects(instruction, expected, "%@ should decode as %@; got %@", instrName, expected, instruction);
}
}