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ColourTrans_GenerateTable
Programmer's Reference Manuals
» Part 8 - Non-kernel input/output
» ColourTrans
» SWI Calls
» ColourTrans_GenerateTable
ColourTrans_ GenerateTable
(SWI &40763)
| Entry | |
|---|---|
| R0 | Source mode |
| R1 | Source palette pointer |
| R2 | Destination mode, or -1 for current mode |
| R3 | Destination palette pointer, or |
| -1 for current palette, or | |
| 0 for default for the current mode | |
| R4 | Pointer to buffer, or 0 to return length |
| R5 | Select Table Flags (only used if R0 >= 256) |
| R6 | Pointer to transfer function (if R0 => 256 and bit 2 of R5 is set) |
| R7 | Pointer to transfer workspace (R12) (if R0 => 256 and bit 2 of R5 is set) |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Preserved |
| R2 | Preserved |
| R3 | Preserved |
| R4 | Required size of buffer (if R4=0 on entry), or preserved |
| R5 | Preserved |
| R6 | Preserved |
| R7 | Preserved |
Use
The purpose of this call is to set up a translation table in a buffer that is used by scaled sprite plotting.
Notes
The SWI call assumes that R5 contains valid flags.
Both R6 and R7 are only used, if both;
- R0 => 256
- bit 2 of R5 is set