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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
| Category | Address | Size | Description |
|---|---|---|---|
| Stats | $7e3696 | long | ???? Current amount of Gold |
| Bag | $7e3725-$7e3824 | 256 bytes | ???? Each byte is which item is in bag slot, 0 means empty, game uses values $01-$e4 |
| Bag | $7e3825-$7e3924 | 256 bytes | ???? Each byte is amount of the item in the bag slot, game allows up to 99 |
| Stats | $7e3925 | byte | ???? Top 7 bits are Hero's level, bottom bit unknown |
| Stats | $7e3926-$7e3928 | long | ???? Hero's XP |
| Stats | $7e3929-$7e392a | word | ???? Hero's max HP |
| Stats | $7e392b-$7e392c | word | ???? Hero's current HP |
| Stats | $7e392d-$7e392e | word | ???? Hero's max MP |
| Stats | $7e392f-$7e3930 | word | ???? Hero's current MP |
| Stats | $7e3931 | byte | ???? Hero's strength |
| Stats | $7e3932 | byte | ???? Hero's agility |
| Stats | $7e3933 | byte | ???? Hero's stamina |
| Stats | $7e3934 | byte | ???? Hero's wisdom |
| Stats | $7e3935 | byte | ???? Hero's luck |
| Stats | $7e393b-$7e393f | 5 bytes | ????️ Hero's name, 4 characters max followed by $ac (end of string) |
| Bag | $7e3953 | byte | ???? Hero's bag: Number of items equipped, equipped items are moved to the top of the bag so only the amount is needed to be saved |
| Bag | $7e3954 | byte | ???? Hero's bag: Number of items carried, max is $0c |
| Bag | $7e3955-$7e3960 | 12 bytes | ???? Hero's bag: Each byte is which item is in the slot |
| Joypad | $7e7ff8 | word | ???? Joypad Buttons - registers $4218 and $4219 are read and stored here |
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) |
| Graphics Loading | $7faeea - $7fb0e9 | $100 words | ↔️ Tile indexes, which tiles to copy, used to fill the DMA copy scheduler data in $7e8bae - $7e93ae |
Internal Data for Dragon Quest III (SNES)
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|---|---|