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a9c6d5964f
* Add 65C02 Opcode tests * All tests pass, Klaus' 6502_functional_tests pass & Klaus' 65C02_extended_opcodes_test also all pass
373 lines
11 KiB
Java
373 lines
11 KiB
Java
package com.loomcom.symon;
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import com.loomcom.symon.devices.Memory;
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import com.loomcom.symon.exceptions.MemoryAccessException;
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import junit.framework.*;
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import static junit.framework.TestCase.assertFalse;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertTrue;
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/**
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* Test for Zero Page Indirect addressing mode, found on some instructions
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* in the 65C02 and 65816
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*/
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public class Cpu65C02ZeroPageModeTest extends TestCase {
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protected Cpu cpu;
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protected Bus bus;
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protected Memory mem;
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private void makeCmosCpu() throws Exception {
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makeCpu(InstructionTable.CpuBehavior.CMOS_6502);
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}
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private void makeNmosCpu() throws Exception {
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makeCpu(InstructionTable.CpuBehavior.NMOS_6502);
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}
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private void makeCpu(InstructionTable.CpuBehavior behavior) throws Exception {
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this.cpu = new Cpu(behavior);
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this.bus = new Bus(0x0000, 0xffff);
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this.mem = new Memory(0x0000, 0xffff);
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bus.addCpu(cpu);
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bus.addDevice(mem);
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// Load the reset vector.
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bus.write(0xfffc, Bus.DEFAULT_LOAD_ADDRESS & 0x00ff);
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bus.write(0xfffd, (Bus.DEFAULT_LOAD_ADDRESS & 0xff00) >>> 8);
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cpu.reset();
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}
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public void test_STZ() throws Exception {
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makeCmosCpu();
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bus.write(0x0000,0xff);
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bus.loadProgram(0x64,0x00); // STZ Zero Page $00
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// Test STZ Zero Page
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assertEquals(0xff,bus.read(0x00, true));
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cpu.step();
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assertEquals(0x00,bus.read(0x00, true));
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}
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public void test_STZRequiresCmosCpu() throws Exception {
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makeNmosCpu();
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bus.write(0x0000,0xff);
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bus.loadProgram(0x64,0x00); // STZ Zero Page $00
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// Test STZ Zero Page
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assertEquals(0xff,bus.read(0x00, true));
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cpu.step();
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assertEquals(0xff,bus.read(0x00, true));
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}
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public void test_SMB() throws Exception {
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makeCmosCpu();
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bus.loadProgram(0x87,0x01, // SMB0 $01
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0x97,0x01, // SMB1 $01
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0xa7,0x01, // SMB2 $01
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0xb7,0x01, // SMB3 $01
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0xc7,0x01, // SMB4 $01
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0xd7,0x01, // SMB5 $01
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0xe7,0x01, // SMB6 $01
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0xf7,0x01); // SMB7 $01
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// SMB0
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(1 << 0,bus.read(0x0001, true));
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// SMB1
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(1 << 1,bus.read(0x0001, true));
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// SMB2
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(1 << 2,bus.read(0x0001, true));
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// SMB3
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(1 << 3,bus.read(0x0001, true));
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// SMB4
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(1 << 4,bus.read(0x0001, true));
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// SMB5
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(1 << 5,bus.read(0x0001, true));
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// SMB6
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(1 << 6,bus.read(0x0001, true));
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// SMB7
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(1 << 7,bus.read(0x0001, true));
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}
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public void test_SMBRequiresCmosCpu() throws Exception {
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makeNmosCpu();
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bus.loadProgram(0x87,0x01, // SMB0 $01
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0x97,0x01, // SMB1 $01
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0xa7,0x01, // SMB2 $01
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0xb7,0x01, // SMB3 $01
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0xc7,0x01, // SMB4 $01
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0xd7,0x01, // SMB5 $01
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0xe7,0x01, // SMB6 $01
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0xf7,0x01); // SMB7 $01
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// SMB0
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0x00,bus.read(0x0001, true));
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// SMB1
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0x00,bus.read(0x0001, true));
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// SMB2
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0x00,bus.read(0x0001, true));
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// SMB3
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0x00,bus.read(0x0001, true));
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// SMB4
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0x00,bus.read(0x0001, true));
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// SMB5
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0x00,bus.read(0x0001, true));
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// SMB6
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0x00,bus.read(0x0001, true));
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// SMB7
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bus.write(0x01,0x00);
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assertEquals(0x00,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0x00,bus.read(0x0001, true));
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}
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public void test_RMB() throws Exception {
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makeCmosCpu();
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bus.loadProgram(0x07,0x01, // SMB0 $01
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0x17,0x01, // SMB1 $01
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0x27,0x01, // SMB2 $01
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0x37,0x01, // SMB3 $01
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0x47,0x01, // SMB4 $01
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0x57,0x01, // SMB5 $01
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0x67,0x01, // SMB6 $01
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0x77,0x01); // SMB7 $01
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// RMB0
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0xfe,bus.read(0x0001, true));
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// RMB1
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0xfd,bus.read(0x0001, true));
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// RMB2
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0xfb,bus.read(0x0001, true));
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// RMB3
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0xf7,bus.read(0x0001, true));
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// RMB4
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0xef,bus.read(0x0001, true));
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// RMB5
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0xdf,bus.read(0x0001, true));
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// RMB6
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0xbf,bus.read(0x0001, true));
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// RMB7
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0x7f,bus.read(0x0001, true));
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}
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public void test_RMBRequiresCmosCpu() throws Exception {
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makeNmosCpu();
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bus.loadProgram(0x07,0x01, // SMB0 $01
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0x17,0x01, // SMB1 $01
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0x27,0x01, // SMB2 $01
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0x37,0x01, // SMB3 $01
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0x47,0x01, // SMB4 $01
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0x57,0x01, // SMB5 $01
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0x67,0x01, // SMB6 $01
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0x77,0x01); // SMB7 $01
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// RMB0
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0xff,bus.read(0x0001, true));
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// RMB1
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0xff,bus.read(0x0001, true));
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// RMB2
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0xff,bus.read(0x0001, true));
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// RMB3
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0xff,bus.read(0x0001, true));
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// RMB4
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0xff,bus.read(0x0001, true));
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// RMB5
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0xff,bus.read(0x0001, true));
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// RMB6
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0xff,bus.read(0x0001, true));
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// RMB7
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bus.write(0x01,0xff);
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assertEquals(0xff,bus.read(0x0001, true));
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cpu.step();
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assertEquals(0xff,bus.read(0x0001, true));
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}
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public void test_TSB() throws Exception {
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makeCmosCpu();
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bus.loadProgram(0x04, 0x10); // 65C02 TSB Zero Page $10
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bus.write(0x10, 0x01);
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cpu.setAccumulator(0x03);
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cpu.step();
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assertEquals(0x03,bus.read(0x10,true));
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assertFalse(cpu.getZeroFlag());
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cpu.reset();
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bus.write(0x10, 0x01);
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cpu.setAccumulator(0x02);
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cpu.step();
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assertEquals(0x03,bus.read(0x10,true));
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assertTrue(cpu.getZeroFlag());
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}
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public void test_TSBRequiresCmosCpu() throws Exception {
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makeNmosCpu();
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bus.loadProgram(0x04, 0x10); // 65C02 TSB Zero Page $10
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bus.write(0x10, 0x01);
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cpu.setAccumulator(0x03);
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cpu.step();
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assertEquals(0x01,bus.read(0x10,true));
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}
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public void test_TRB() throws Exception {
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makeCmosCpu();
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cpu.reset();
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bus.loadProgram(0x14, 0x40); // 65C02 TRB Zero Page $40
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bus.write(0x0040, 0xff);
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cpu.setAccumulator(0x01);
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cpu.step();
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assertEquals(0xfe,bus.read(0x0040,true)); // $03 &= ~($01) = $02
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assertFalse(cpu.getZeroFlag()); // Z = !(A & M)
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cpu.reset();
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cpu.setAccumulator(0x01);
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cpu.step();
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assertEquals(0xfe,bus.read(0x0040,true)); // $02 &= ~($01) = $02
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assertTrue(cpu.getZeroFlag()); // Z = !(A & M)
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}
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public void test_TRBRequiresCmosCpu() throws Exception {
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makeNmosCpu();
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cpu.reset();
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bus.loadProgram(0x14, 0x40); // 65C02 TRB Zero Page $40
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bus.write(0x0040, 0xff);
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cpu.setAccumulator(0x01);
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cpu.step();
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assertEquals(0xff,bus.read(0x0040,true)); // $03 &= ~($01) = $02
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}
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}
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