| Dec. | Hex. | Bytes | System Calls: G007 |
| 10566 | 2946 | Plot N routine, with N in register A | |
| 11737 | 2DD9 | Delete high-res display file. Temporarily sets fast mode, so CALL 519 afterwards. |
|
| 11807 | 2E1F | Check and set up hi-res display file if not already
there. Also checks that system variables have been initialised. |
|
| 11858 | 2E1F | Clear the screen This is equivalent to CLS n in BASIC. The routine should be called with the value of n in the accumulator. |
|
| Setting the high/low resolution mode There is no easily accessible routine for setting display mode. This can be done by loading the Z80 register I with 30 (1EH) for low-res display, or 31 (1FH) for hi-res display. |