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https://github.com/badvision/jace.git
synced 2025-04-06 18:37:22 +00:00
Added debugging NOP opcode support.
This commit is contained in:
Brendan Robert
parent
9f838d11f1
commit
893052b004
@ -24,6 +24,7 @@ import jace.core.Computer;
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import jace.core.RAM;
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import jace.core.RAMEvent.TYPE;
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import jace.state.Stateful;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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/**
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@ -36,6 +37,7 @@ import java.util.logging.Logger;
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*/
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@Stateful
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public class MOS65C02 extends CPU {
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private static final Logger LOG = Logger.getLogger(MOS65C02.class.getName());
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public boolean readAddressTriggersEvent = true;
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static int RESET_VECTOR = 0x00FFFC;
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@ -209,6 +211,7 @@ public class MOS65C02 extends CPU {
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LSR_AB(0x004E, COMMAND.LSR, MODE.ABSOLUTE, 6),
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LSR_AB_X(0x005E, COMMAND.LSR, MODE.ABSOLUTE_X, 7),
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NOP(0x00EA, COMMAND.NOP, MODE.IMPLIED, 2),
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SPECIAL(0x00FC, COMMAND.NOP_SPECIAL, MODE.ABSOLUTE, 4),
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ORA_IMM(0x0009, COMMAND.ORA, MODE.IMMEDIATE, 2),
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ORA_ZP(0x0005, COMMAND.ORA, MODE.ZEROPAGE, 3),
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ORA_ZP_X(0x0015, COMMAND.ORA, MODE.ZEROPAGE_X, 4),
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@ -583,7 +586,6 @@ public class MOS65C02 extends CPU {
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}
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public enum COMMAND {
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ADC((address, value, addressMode, cpu) -> {
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int w;
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cpu.V = ((cpu.A ^ value) & 0x080) == 0;
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@ -824,6 +826,11 @@ public class MOS65C02 extends CPU {
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}),
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NOP((address, value, addressMode, cpu) -> {
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}),
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NOP_SPECIAL((address, value, addressMode, cpu) -> {
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byte param1 = (byte) (address & 0x0ff);
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byte param2 = (byte) (address >> 8);
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cpu.performExtendedCommand(param1, param2);
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}),
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ORA((address, value, addressMode, cpu) -> {
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cpu.A |= value;
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cpu.setNZ(cpu.A);
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@ -1049,7 +1056,7 @@ public class MOS65C02 extends CPU {
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traceEntry = getState().toUpperCase() + " " + Integer.toString(pc, 16) + " : " + disassemble();
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captureSingleTrace(traceEntry);
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if (isTraceEnabled()) {
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Logger.getLogger(getClass().getName()).info(traceEntry);
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LOG.log(Level.INFO, traceEntry);
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}
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if (isLogEnabled()) {
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log(traceEntry);
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@ -1059,8 +1066,8 @@ public class MOS65C02 extends CPU {
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int op = 0x00ff & getMemory().read(pc, TYPE.EXECUTE, true, false);
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OPCODE opcode = opcodes[op];
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if (traceEntry != null && warnAboutExtendedOpcodes && opcode != null && opcode.isExtendedOpcode) {
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System.out.println(">>EXTENDED OPCODE DETECTED " + Integer.toHexString(opcode.code) + "<<");
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System.out.println(traceEntry);
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LOG.log(Level.WARNING, ">>EXTENDED OPCODE DETECTED {0}<<", Integer.toHexString(opcode.code));
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LOG.log(Level.WARNING, traceEntry);
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if (isLogEnabled()) {
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log(">>EXTENDED OPCODE DETECTED " + Integer.toHexString(opcode.code) + "<<");
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log(traceEntry);
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@ -1102,9 +1109,7 @@ public class MOS65C02 extends CPU {
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addWaitCycles(wait);
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if (isLogEnabled() || breakOnBadOpcode) {
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System.out.println("Unrecognized opcode "
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+ Integer.toHexString(op)
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+ " at " + Integer.toHexString(pc));
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LOG.log(Level.WARNING, "Unrecognized opcode {0} at {1}", new Object[]{Integer.toHexString(op), Integer.toHexString(pc)});
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}
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if (breakOnBadOpcode) {
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OPCODE.BRK.execute(this);
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@ -1175,13 +1180,13 @@ public class MOS65C02 extends CPU {
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@Override
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public void JSR(int address) {
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pushWord(getProgramCounter() - 1);
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pushPC();
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setProgramCounter(address);
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}
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public void BRK() {
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if (isLogEnabled()) {
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System.out.println("BRK at $" + Integer.toString(getProgramCounter(), 16));
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LOG.log(Level.WARNING, "BRK at ${0}", Integer.toString(getProgramCounter(), 16));
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dumpTrace();
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}
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B = true;
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@ -1233,7 +1238,7 @@ public class MOS65C02 extends CPU {
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// V = true;
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// Z = true;
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int newPC = getMemory().readWord(RESET_VECTOR, TYPE.READ_DATA, true, false);
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System.out.println("Reset called, setting PC to (" + Integer.toString(RESET_VECTOR, 16) + ") = " + Integer.toString(newPC, 16));
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LOG.log(Level.WARNING, "Reset called, setting PC to ({0}) = {1}", new Object[]{Integer.toString(RESET_VECTOR, 16), Integer.toString(newPC, 16)});
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setProgramCounter(newPC);
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}
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@ -1321,4 +1326,34 @@ public class MOS65C02 extends CPU {
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public void pushPC() {
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pushWord(getProgramCounter() - 1);
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}
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/**
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* Special commands -- these are usually treated as NOP but can be reused for emulator controls
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* !byte $fc, $65, $00 ; Turn off tracing
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* !byte $fc, $65, $01 ; Turn on tracing
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* @param param1
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* @param param2
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*/
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public void performExtendedCommand(byte param1, byte param2) {
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LOG.log(Level.INFO, "Extended command {0},{1}", new Object[]{Integer.toHexString(param1), Integer.toHexString(param2)});
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switch (param1 & 0x0ff) {
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case 0x65:
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// CPU functions
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switch (param2 & 0x0ff) {
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case 0x00:
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// Turn off tracing
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trace = false;
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break;
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case 0x01:
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// Turn on tracing
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trace = true;
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break;
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}
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break;
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case 0x64:
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// Memory functions
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getMemory().performExtendedCommand(param2 & 0x0ff);
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default:
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}
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}
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}
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@ -26,6 +26,8 @@ import jace.core.RAM;
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import jace.state.Stateful;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.concurrent.Semaphore;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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@ -38,6 +40,74 @@ import java.util.logging.Logger;
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*/
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@Stateful
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abstract public class RAM128k extends RAM {
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Logger LOG = Logger.getLogger(RAM128k.class.getName());
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Map<String, PagedMemory> banks;
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private Map<String, PagedMemory> getBanks() {
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if (banks == null) {
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banks = new HashMap<>();
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banks.put("main", mainMemory);
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banks.put("lc", languageCard);
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banks.put("lc2", languageCard2);
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banks.put("//e rom (80-col)", cPageRom);
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banks.put("//e rom", rom);
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banks.put("blank", blank);
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banks.put("aux", getAuxMemory());
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banks.put("aux lc", getAuxLanguageCard());
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banks.put("aux lc2", getAuxLanguageCard2());
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cards[1].ifPresent(c -> banks.put("card1a", c.getCxRom()));
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cards[1].ifPresent(c -> banks.put("card1b", c.getC8Rom()));
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cards[2].ifPresent(c -> banks.put("card2a", c.getCxRom()));
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cards[2].ifPresent(c -> banks.put("card2b", c.getC8Rom()));
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cards[3].ifPresent(c -> banks.put("card3a", c.getCxRom()));
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cards[3].ifPresent(c -> banks.put("card3b", c.getC8Rom()));
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cards[4].ifPresent(c -> banks.put("card4a", c.getCxRom()));
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cards[4].ifPresent(c -> banks.put("card4b", c.getC8Rom()));
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cards[5].ifPresent(c -> banks.put("card5a", c.getCxRom()));
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cards[5].ifPresent(c -> banks.put("card5b", c.getC8Rom()));
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cards[6].ifPresent(c -> banks.put("card6a", c.getCxRom()));
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cards[6].ifPresent(c -> banks.put("card6b", c.getC8Rom()));
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cards[7].ifPresent(c -> banks.put("card7a", c.getCxRom()));
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cards[7].ifPresent(c -> banks.put("card7b", c.getC8Rom()));
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}
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return banks;
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}
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@Override
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public void performExtendedCommand(int param) {
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switch (param) {
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case 0xda:
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// 64 da : Dump all memory mappings
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System.out.println("Active banks");
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for (int i = 0; i < 256; i++) {
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byte[] read = activeRead.get(i);
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byte[] write = activeWrite.get(i);
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String readBank = getBanks().keySet().stream().filter(bank->{
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PagedMemory mem = getBanks().get(bank);
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for (byte[] page : mem.getMemory()) {
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if (page == read) {
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return true;
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}
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}
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return false;
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}).findFirst().orElse("unknown");
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String writeBank = getBanks().keySet().stream().filter(bank->{
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PagedMemory mem = getBanks().get(bank);
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for (byte[] page : mem.getMemory()) {
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if (page == write) {
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return true;
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}
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}
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return false;
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}).findFirst().orElse("unknown");
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LOG.log(Level.INFO,"Bank {0}\t{1}\t{2}", new Object[]{Integer.toHexString(i), readBank, writeBank});
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}
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default:
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}
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}
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@Stateful
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public PagedMemory mainMemory;
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@ -90,7 +160,7 @@ abstract public class RAM128k extends RAM {
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// First off, set up read/write for main memory (might get changed later on)
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activeRead.fillBanks(SoftSwitches.RAMRD.getState() ? getAuxMemory() : mainMemory);
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activeWrite.fillBanks(SoftSwitches.RAMWRT.getState() ? getAuxMemory() : mainMemory);
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// Handle language card softswitches
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activeRead.fillBanks(rom);
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//activeRead.fillBanks(cPageRom);
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@ -110,7 +180,7 @@ abstract public class RAM128k extends RAM {
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}
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}
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}
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if (SoftSwitches.LCWRITE.isOn()) {
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if (SoftSwitches.AUXZP.isOff()) {
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activeWrite.fillBanks(languageCard);
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@ -129,7 +199,7 @@ abstract public class RAM128k extends RAM {
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activeWrite.set(i, null);
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}
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}
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// Handle 80STORE logic for bankswitching video ram
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if (SoftSwitches._80STORE.isOn()) {
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activeRead.setBanks(0x04, 0x04, 0x04,
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@ -143,7 +213,7 @@ abstract public class RAM128k extends RAM {
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SoftSwitches.PAGE2.isOn() ? getAuxMemory() : mainMemory);
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}
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}
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// Handle zero-page bankswitching
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if (SoftSwitches.AUXZP.getState()) {
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// Aux pages 0 and 1
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@ -154,13 +224,13 @@ abstract public class RAM128k extends RAM {
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activeRead.setBanks(0, 2, 0, mainMemory);
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activeWrite.setBanks(0, 2, 0, mainMemory);
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}
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/*
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INTCXROM SLOTC3ROM C1,C2,C4-CF C3
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0 0 slot rom
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0 1 slot slot
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1 - rom rom
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*/
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*/
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if (SoftSwitches.CXROM.getState()) {
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// Enable C1-CF to point to rom
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activeRead.setBanks(0, 0x0F, 0x0C1, cPageRom);
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@ -335,4 +335,6 @@ public abstract class RAM implements Reconfigurable {
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abstract public void attach();
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abstract public void detach();
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abstract public void performExtendedCommand(int i);
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}
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@ -156,18 +156,18 @@ public abstract class Video extends Device {
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@Override
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public void tick() {
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setScannerLocation(currentWriter.getYOffset(y));
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setFloatingBus(computer.getMemory().readRaw(scannerAddress + x));
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if (hPeriod > 0) {
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hPeriod--;
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if (hPeriod <= 1) {
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if (hPeriod == 0) {
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x = -1;
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setScannerLocation(currentWriter.getYOffset(y));
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}
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} else {
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if (!isVblank && x < (APPLE_CYCLES_PER_LINE)) {
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if (!isVblank && x < (APPLE_CYCLES_PER_LINE-1)) {
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draw();
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}
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if (x >= APPLE_CYCLES_PER_LINE) {
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if (x >= APPLE_CYCLES_PER_LINE - 1) {
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int yy = y + hblankOffsetY;
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if (yy < 0) {
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yy += APPLE_SCREEN_LINES;
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@ -175,8 +175,7 @@ public abstract class Video extends Device {
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if (yy >= APPLE_SCREEN_LINES) {
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yy -= (TOTAL_LINES - APPLE_SCREEN_LINES);
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}
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setScannerLocation(currentWriter.getYOffset(yy) + hblankOffsetX + (yy < 64 ? 128 : 0));
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x = -1;
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x = hblankOffsetX - 1;
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if (!isVblank) {
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if (lineDirty) {
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screenDirty = true;
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