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Added additional debugging output to the FC NOP special opcodes

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badvision 2017-02-06 23:12:42 -06:00
parent 29161bcf7e
commit 3e676cd3c5
1 changed files with 16 additions and 1 deletions
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17
src/main/java/jace/apple2e/MOS65C02.java
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@ -1343,12 +1343,27 @@ public class MOS65C02 extends CPU {
* Special commands -- these are usually treated as NOP but can be reused for emulator controls
* !byte $fc, $65, $00 ; Turn off tracing
* !byte $fc, $65, $01 ; Turn on tracing
* !byte $fc, $50, NN ; print number NN to stdout
* !byte $fc, $5b, NN ; print number NN to stdout with newline
* !byte $fc, $5c, NN ; print character NN to stdout
* @param param1
* @param param2
*/
public void performExtendedCommand(byte param1, byte param2) {
LOG.log(Level.INFO, "Extended command {0},{1}", new Object[]{Integer.toHexString(param1), Integer.toHexString(param2)});
// LOG.log(Level.INFO, "Extended command {0},{1}", new Object[]{Integer.toHexString(param1), Integer.toHexString(param2)});
switch (param1 & 0x0ff) {
case 0x50:
// System out
System.out.print(param2 & 0x0ff);
break;
case 0x5b:
// System out (with line break)
System.out.println(param2 & 0x0ff);
break;
case 0x5c:
// System out (with line break)
System.out.println((char) (param2 & 0x0ff));
break;
case 0x65:
// CPU functions
switch (param2 & 0x0ff) {