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CLK/OSBindings/Mac/Clock SignalTests/68000flamewingTests.mm

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//
// 68000ComparativeTests.cpp
// Clock SignalTests
//
// Created by Thomas Harte on 14/12/2019.
// Copyright © 2019 Thomas Harte. All rights reserved.
//
#import <XCTest/XCTest.h>
#include "../../../InstructionSets/M68k/Perform.hpp"
using namespace InstructionSet::M68k;
@interface M68000flamewingTests : XCTestCase
@end
@implementation M68000flamewingTests
- (Status)statusWithflamewingFlags:(int)flags {
Status status;
status.carry_flag = status.extend_flag = flags & 2;
status.zero_result = ~flags & 1;
status.negative_flag = 0;
status.overflow_flag = 0;
return status;
}
- (void)validate:(const uint8_t *)test source:(int)source dest:(int)dest flags:(int)flags result:(uint32_t)result status:(Status)status operation:(NSString *)operation {
const uint8_t result_flags = test[0];
const uint8_t result_value = test[1];
NSString *const testName =
[NSString stringWithFormat:@"%@ %02x, %02x [%c%c]", operation, source, dest, (flags & 2) ? 'X' : '-', (flags & 1) ? 'Z' : '-'];
XCTAssertEqual(result, uint32_t(result_value), @"Wrong value received for %@", testName);
XCTAssertEqual(status.ccr(), uint16_t(result_flags), @"Wrong status received for %@", testName);
}
- (void)testAll {
// Get the full list of available test files.
NSBundle *const bundle = [NSBundle bundleForClass:[self class]];
NSURL *const testURL = [bundle URLForResource:@"bcd-table" withExtension:@"bin" subdirectory:@"flamewing 68000 BCD tests"];
NSData *const testData = [NSData dataWithContentsOfURL:testURL];
const uint8_t *bytes = reinterpret_cast<const uint8_t *>(testData.bytes);
NullFlowController flow_controller;
// Test ABCD.
for(int source = 0; source < 256; source++) {
for(int dest = 0; dest < 256; dest++) {
for(int flags = 0; flags < 4; flags++) {
Status status = [self statusWithflamewingFlags:flags];
CPU::SlicedInt32 s, d;
s.l = source;
d.l = dest;
perform<Model::M68000, NullFlowController, Operation::ABCD>(
Preinstruction(), s, d, status, flow_controller);
[self validate:bytes source:source dest:dest flags:flags result:d.l status:status operation:@"ABCD"];
bytes += 2;
}
}
}
// Test SBCD.
for(int source = 0; source < 256; source++) {
for(int dest = 0; dest < 256; dest++) {
for(int flags = 0; flags < 4; flags++) {
Status status = [self statusWithflamewingFlags:flags];
CPU::SlicedInt32 s, d;
s.l = source;
d.l = dest;
perform<Model::M68000, NullFlowController, Operation::SBCD>(
Preinstruction(), s, d, status, flow_controller);
[self validate:bytes source:source dest:dest flags:flags result:d.l status:status operation:@"SBCD"];
bytes += 2;
}
}
}
// Test NBCD.
for(int source = 0; source < 256; source++) {
for(int flags = 0; flags < 4; flags++) {
Status status = [self statusWithflamewingFlags:flags];
CPU::SlicedInt32 s, d;
s.l = source;
perform<Model::M68000, NullFlowController, Operation::NBCD>(
Preinstruction(), s, d, status, flow_controller);
[self validate:bytes source:source dest:0 flags:flags result:s.l status:status operation:@"NBCD"];
bytes += 2;
}
}
}
@end