OS_ClaimScreenMemory (changes)
Showing changes from revision #1 to #2:
Added | Removed | Changed
Programmer's OS Reference SWI Manuals Calls
» OS_ClaimScreenMemoryPart 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.
Social
Follow us on
and
and
ROOL Store
Buy RISC OS Open merchandise here, including SD cards for Raspberry Pi and more.