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Test all ABCDs.
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parent
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@ -15,8 +15,34 @@ using namespace InstructionSet::M68k;
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@interface m68kDecoderTests : XCTestCase
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@interface m68kDecoderTests : XCTestCase
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@end
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@end
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namespace {
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template <int index> NSString *operand(Preinstruction instruction) {
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switch(instruction.mode<index>()) {
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default: return @"";
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case AddressingMode::DataRegisterDirect:
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return [NSString stringWithFormat:@"D%d", instruction.reg<index>()];
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case AddressingMode::AddressRegisterDirect:
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return [NSString stringWithFormat:@"A%d", instruction.reg<index>()];
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case AddressingMode::AddressRegisterIndirect:
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return [NSString stringWithFormat:@"(A%d)", instruction.reg<index>()];
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case AddressingMode::AddressRegisterIndirectWithPostincrement:
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return [NSString stringWithFormat:@"(A%d)+", instruction.reg<index>()];
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case AddressingMode::AddressRegisterIndirectWithPredecrement:
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return [NSString stringWithFormat:@"-(A%d)", instruction.reg<index>()];
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}
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}
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}
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@implementation m68kDecoderTests
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@implementation m68kDecoderTests
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- (NSString *)operand:(int)operand instruction:(Preinstruction)instruction {
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return @"";
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}
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- (void)testInstructionSpecs {
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- (void)testInstructionSpecs {
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NSData *const testData =
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NSData *const testData =
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[NSData dataWithContentsOfURL:
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[NSData dataWithContentsOfURL:
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@ -42,6 +68,22 @@ using namespace InstructionSet::M68k;
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XCTAssertEqualObjects(@"None", expected, "%@ should decode as %@", instrName, expected);
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XCTAssertEqualObjects(@"None", expected, "%@ should decode as %@", instrName, expected);
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continue;
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continue;
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}
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}
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NSString *instruction;
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switch(found.operation) {
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case Operation::ABCD: instruction = @"ABCD"; break;
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// For now, skip any unmapped operations.
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default: continue;
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}
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NSString *const operand1 = operand<0>(found);
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NSString *const operand2 = operand<1>(found);
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if(operand1.length) instruction = [instruction stringByAppendingFormat:@" %@", operand1];
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if(operand2.length) instruction = [instruction stringByAppendingFormat:@", %@", operand2];
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XCTAssertEqualObjects(instruction, expected, "%@ should decode as %@; got %@", instrName, expected, instruction);
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}
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}
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}
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}
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