A fast and easily customised operating system
for ARM devices
OS_SpriteOp 15
OS SWI Calls
» OS_SpriteOp
» OS_SpriteOp 15 – Create sprite
OS_SpriteOp 15 – Create sprite
(SWI &2E)
| Entry | |
|---|---|
| R0 | 15 (Reason code) + Area value |
| R1 | Unused/Sprite area (as defined by area value in R0) |
| R2 | Sprite name |
| R3 | 1 to create palette, 0 to exclude palette |
| R4 | Width in pixels |
| R5 | Height in pixels |
| R6 | Mode Specifier |
| Exit | |
|---|---|
| All registers preserved | |
Use
This call creates a new sprite with the given name.
Notes
If a sprite with the given name already exists, it will first be deleted before the new sprite is created.
All of the sprite pixels will be initialised to zero.
If R6 is a valid Sprite Mode Word (i.e. a mode number, or a RISC OS 3.5 or RISC OS 5 style sprite mode word) then it will be used as-is to initialise the mode word of the new sprite. Otherwise it must be a pointer to a Mode Selector Block. The block will be converted to a RISC OS 3.5 or RISC OS 5 sprite mode word, favouring the most backwards compatible format.
See also
Social
Follow us on
and
and
ROOL Store
Buy RISC OS Open merchandise here, including SD cards for Raspberry Pi and more.