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Super R-Type RAM Map
From SnesLab
| Address | Size | Type | Description |
|---|---|---|---|
| $7E:004C | 2 bytes | Flow | If #$0080 is set, run the game, otherwise wait for NMI. |
| $7E:004E | 2 bytes | Flow | 16-bit frame counter, incremented every time the NMI runs. |
| $7E:0050 | 2 bytes | Flow | 16-bit frame counter, incremented every time the game logic runs. |
| $7E:0080 | 1 byte | PPU | $2100 register mirror |
| $7E:0082 | 1 byte | CPU | $4200 register mirror, only written once because $4200 is always #$81 |
| $7E:00F4 | 1 byte | PPU | Copy of PPU status flag, $213E |
| $7E:0700 | Unknown | ||
| $7E:1580 | Unknown | ||
| $7E:1832 | Unknown | Seems to be a group related to BG 0 | |
| $7E:1836 | 2 bytes | PPU | BG 0 X position |
| $7E:1838 | 2 bytes | PPU | BG 0 Y position |
| $7E:1862 | Unknown | Seems to be a group related to BG 1 | |
| $7E:1866 | 2 bytes | PPU | BG 1 X position |
| $7E:1868 | 2 bytes | PPU | BG 1 Y position |
| $7E:1892 | Unknown | Seems to be a group related to BG 2 | |
| $7E:1896 | 2 bytes | PPU | BG 2 X position |
| $7E:1898 | 2 bytes | PPU | BG 2 Y position |
| $7E:1902 | 128 bytes | Each entry has 8 bytes. | |
| $7E:2200 | 512 bytes | OAM | OAM table |
| $7E:2400 | 32 bytes | OAM | OAM attribute table |
| $7E:24A0 | 1024 bytes | VRAM | Unknown data that is transferred to VRAM |
| $7E:2F60 | 512 bytes | Palette | CGRAM |
| $7E:8000 | 32768 bytes | Empty | Unused data, initialized at reset. |
| $7F:0000 | 65536 bytes | Empty | Unused data, not even initialized. |