| PETSCII code (dec, hex) | Change (dec, hex) | Screen code (dec, hex) | |||
|---|---|---|---|---|---|
| 0-31 | $00-$1F | +128 | $80 | 128-159 | $80-$9F |
| 32-63 | $20-$3F | 0 | $00 | 32-63 | $20-$3F |
| 64-95 | $40-$5F | -64 | $C0 | 0-31 | $00-$1F |
| 96-127 | $60-$7F | +64 | $40 | 160-191 | $A0-$BF |
| 128-159 | $80-$9F | +64 | $40 | 192-223 | $C0-$DF |
| 160-191 | $A0-$BF | -64 | $C0 | 96-127 | $60-$7F |
| 192-223 | $C0-$DF | -128 | $80 | 64-95 | $40-$5F |
| 224-255 | $E0-$FF | 0 | $00 | 224-255 | $E0-$FF |
Notes:
This suggested conversion table is theoritical, created for the sake of a bijective conversion. It has never been actually implemented by Commodore.