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OS_ClaimScreenMemory
Programmer's Reference Manuals
» Part 15 – SWI Calls
» OS
» OS_ClaimScreenMemory
OS_ClaimScreenMemory
(SWI &41)
| Entry | |
|---|---|
| R0 | 0 for claim, or 1 for release |
| R1 | Bytes required |
| Exit | |
|---|---|
| If C flag set, memory not claimed, if clear then memory claimed | |
| R0 | Preserved |
| R1 | Bytes available |
| R2 | Start address |
Use
The purpose of this call is to claim spare memory allocated as screen memory.
Notes
Can only be claimed if no other bank than bank 1 has been used.
While claimed, you must now cause the screen to scroll.