|
Routines |
| Prev: C1FC | Up: Map | Next: C249 |
|
Used by the routines at C1FC and GetKeypress.
|
||||
| ValidateKeypress | C240 | CP $61 | Return if the keypress ASCII code is less than 61 ("a") or greater than 7A ("z"). | |
| C242 | RET C | |||
| C243 | CP $7B | |||
| C245 | RET NC | |||
| C246 | AND %01011111 | Keep only bits 0-4, 6. | ||
| C248 | RET | Return. | ||
| Prev: C1FC | Up: Map | Next: C249 |