GraphicsV 13 1 (changes)
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GraphicsV
» GraphicsV 13
» Render op 1
GraphicsV Render op 1
| Entry | |
|---|---|
| R0 | Flags: |
| Bit 0: Synchronise | |
| Bit 1: Synchronise if unclaimed | |
| R1 | 1 (render operation) |
| R2 | Pointer to parameter block |
| R4 | Bits 0-23: 13 (GraphicsV reason code) |
| Bits 24-31: Display number |
| Exit | |
|---|---|
| R4 | 0 |
| - | All other registers preserved |
Parameter block format
| Word | Value |
|---|---|
| 0 | Source left edge |
| 1 | Source bottom edge |
| 2 | Dest left edge |
| 3 | Dest bottom edge |
| 4 | Width-1 |
| 5 | Height-1 |
Use
This operation is used for rectangle block copies/moves. All coordinates are specified in pixels, with 0,0 being the bottom left corner of the screen, and positive values heading right/up.
The source and destination rectangles are guaranteed by the caller to fit entirely on screen, but they may be overlapping.
Notes
See GraphicsV 13 for general information on how drivers are expected to respond to GraphicsV 13 calls.
See also
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