If you are still using the old URL (datacrystal.romhacking.net), please update your bookmarks! The old URL may stop working soon.
The current URL is datacrystal.tcrf.net.
The current URL is datacrystal.tcrf.net.
EarthBound/VRAM DMA Circular Queue
Jump to navigation
Jump to search
This is a sub-page of EarthBound.
| VRAM DMA Circular Queue | |
| Game | EarthBound |
| Start Address | 0x7E0400 |
| End Address | 0x7E04FF |
| # of Entries | 32 |
| Entry Length | 8 bytes (0x08) |
| Total Length | 256 bytes (0x100) |
| Back to the RAM map | |
A circular queue storing queued-up VRAM DMA transfers to be made at the next VBLANK period.
Format
Transfer Style
- Length: 1 byte (0x1)
- Offset within entry: 0x00
- Range of values: 0x00-0x33
Offset into the VRAM DMA Transfer Style Table to get miscellaneous parameters for a DMA transfer.
Size
- Length: 2 bytes (0x2)
- Offset within entry: 0x01
- Range of values: 0x0000-0xFFFF
Transfer size in bytes.
Memory Address
- Length: 3 bytes (0x3)
- Offset within entry: 0x03
- Range of values: 0x000000-0xFFFFFF
CPU memory address (long pointer) for the "A" side of the DMA transfer.
VRAM Address
- Length: 2 bytes (0x2)
- Offset within entry: 0x06
- Range of values: 0x0000-0x7FFF
VRAM word address for the "B" side of the DMA transfer.
Auxiliary Data
- $7E0000 (8-bit):
- $7E0001 (8-bit):
Usage
 | This page is rather stubbly and could use some expansion. Are you a bad enough dude to rescue this article? |