★ HARDWARE Manual ★ VDP1 User's Manual
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VDP1 User's Manual / Chapter 4 System Registers
■ 4.5 Forced drawing end register
- The drawing forced termination register (ENDR, End register) forcibly terminates drawing. This is a write-only 16-bit register located at address 10000CH.
ENDR 10000CH (W) | bit15 | bit14 | bit13 | bit12 | bit11 | bit10 | bit9 | bit8 | bit7 | bit6 | bit5 | bit4 | bit3 | bit2 | bit1 | bit0 |
|---|
| 00H |
- Forced draw end: draw end
- Forcibly interrupts the drawing currently being processed.
- Within about 30 clocks after writing data to the register, drawing of that frame is forcibly terminated.
- Specify 0000H for the write data.
- It is not possible to continue drawing what ended in the middle of drawing.
- If the amount of data to be drawn is large and drawing does not end within one frame, use pseudo drawing continuation to draw in two or more parts. Use this drawing kill to force the drawing to end in the middle of this pseudo drawing continuation. For details, refer to " 4.8 Current Processing Table Address Register ".
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★ HARDWARE Manual ★ VDP1 User's Manual
Copyright SEGA ENTERPRISES, LTD., 1997