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Dragon Quest III (SNES)/RAM map
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The following article is a RAM map for Dragon Quest III (SNES).
Main
VBLANK State Machine
The whole graphics state is set every VBLANK interrupt. This is also where VRAM DMA transfers are scheduled.
| Category | Address | Size | Description |
|---|---|---|---|
| Graphics Settings | $7e7f8a | byte | $2101 - OAM object size and object base |
| Graphics Settings | $7e7f8c | byte | $2105 - BG mode and BG character size |
| Graphics Settings | $7e7f8e | byte | $2106 - Mosaic size and mosaic enable |
| Graphics Settings | $7e7f90 | byte | $2107 - BG 1 screen base and screen size |
| Graphics Settings | $7e7f92 | byte | $2108 - BG 2 screen base and screen size |
| Graphics Settings | $7e7f94 | byte | $2109 - BG 3 screen base and screen size |
| Graphics Settings | $7e7f96 | byte | $210a - BG 4 screen base and screen size |
| Graphics Settings | $7e7f98 | byte | $210b - BG 1 & 2 tile base addresses |
| Graphics Settings | $7e7f9a | byte | $210c - BG 3 & 4 tile base addresses |
| Graphics Settings | $7e7fba | byte | $2123 - Window mask setting, BG 1 & 2 |
| Graphics Settings | $7e7fbc | byte | $2124 - Window mask setting, BG 3 & 4 |
| Graphics Settings | $7e7fbe | byte | $2125 - Window mask setting, OBJ |
| Graphics Settings | $7e7fc0 | byte | $2126 - Window 1 left position |
| Graphics Settings | $7e7fc1 | byte | $2127 - Window 1 right position |
| Graphics Settings | $7e7fc2 | byte | $2128 - Window 2 left position |
| Graphics Settings | $7e7fc3 | byte | $2129 - Window 2 right position |
| Graphics Settings | $7e7fc4 | byte | $212a - Window 1/2 mask logic, BG 1-4 |
| Graphics Settings | $7e7fc6 | byte | $212b - Window 1/2 mask logic, MATH and OBJ |
| Graphics Settings | $7e7fc8 | byte | $212c - Main screen designation |
| Graphics Settings | $7e7fca | byte | $212d - Sub screen designation |
| Graphics Settings | $7e7fcc | byte | $212e - Window area main screen disable |
| Graphics Settings | $7e7fce | byte | $212f - Window area sub screen disable |
| Graphics Settings | $7e7fd0 | byte | $2130 - Color math control A |
| Graphics Settings | $7e7fd2 | byte | $2131 - Color math control B |
| Graphics Settings | $7e7fd4 | word | $2132 - Color math sub screen backdrop color, RGB intensities stored as 0bbbbbgggggrrrrr |
| Graphics Settings | $7e7fda | byte | $2133 - Screen mode/video select |
| Graphics Loading | $7e8bae - $7e8dad | $100 words | $4302 - DMA source addresses |
| Graphics Loading | $7e8dae - $7e8fad | $100 words but only uses low byte | $4304 - DMA source address banks |
| Graphics Loading | $7e8fae - $7e91ad | $100 words | $2116 - VRAM destination addresses |
| Graphics Loading | $7e91ae - $7e93ad | $100 words | $4305 - DMA transfer sizes |
| Graphics Loading | $7e93ae | byte | Number of DMA transfers to perform (indexes the preceding arrays) |