OS_Word 12 (changes)
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Programmer's OS Reference SWI Manuals Calls
» Part OS_Word 15 – SWI Calls
» OS_Word 12OS
» OS_Word
» OS_Word 12
OS_Word 12
(SWI &07)
| Entry | |
|---|---|
| R0 | 12 (&0C) |
| R1 | Buffer: |
| +0 | Logical colour to change |
| +1 | New physical colour |
| +2 | Red component |
| +3 | Green component |
| +4 | Blue component |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Preserved |
Use
The purpose of this call is to write the palette.
Notes
This call is equivalent to VDU 19, but is faster and may be used in interrupt routines.
To read the palette use OS_ReadPalette.
See also
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