68 lines
6.1 KiB
Markdown
68 lines
6.1 KiB
Markdown
# VIC-II Register Map ($D000–$D3FF)
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Source: https://www.c64-wiki.com/wiki/Page_208-211
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Page 208-211 covers the memory locations 53248-54271 ($D000-D3FF). This area is wholly reserved for the VIC-II Registers. The 47 registers are mirrored every 64 bytes in this area.
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## Register Table
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| Hex | Dec | Type | Bit7 | Bit6 | Bit5 | Bit4 | Bit3 | Bit2 | Bit1 | Bit0 | Contents |
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|------|------|----------|------|------|------|------|------|------|------|------|----------|
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| $D000 | 53248 | Register | | | | | | M0X | | | X Coordinate Sprite 0 |
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| $D001 | 53249 | Register | | | | | | M0Y | | | Y Coordinate Sprite 0 |
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| $D002 | 53250 | Register | | | | | | M1X | | | X Coordinate Sprite 1 |
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| $D003 | 53251 | Register | | | | | | M1Y | | | Y Coordinate Sprite 1 |
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| $D004 | 53252 | Register | | | | | | M2X | | | X Coordinate Sprite 2 |
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| $D005 | 53253 | Register | | | | | | M2Y | | | Y Coordinate Sprite 2 |
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| $D006 | 53254 | Register | | | | | | M3X | | | X Coordinate Sprite 3 |
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| $D007 | 53255 | Register | | | | | | M3Y | | | Y Coordinate Sprite 3 |
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| $D008 | 53256 | Register | | | | | | M4X | | | X Coordinate Sprite 4 |
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| $D009 | 53257 | Register | | | | | | M4Y | | | Y Coordinate Sprite 4 |
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| $D00A | 53258 | Register | | | | | | M5X | | | X Coordinate Sprite 5 |
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| $D00B | 53259 | Register | | | | | | M5Y | | | Y Coordinate Sprite 5 |
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| $D00C | 53260 | Register | | | | | | M6X | | | X Coordinate Sprite 6 |
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| $D00D | 53261 | Register | | | | | | M6Y | | | Y Coordinate Sprite 6 |
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| $D00E | 53262 | Register | | | | | | M7X | | | X Coordinate Sprite 7 |
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| $D00F | 53263 | Register | | | | | | M7Y | | | Y Coordinate Sprite 7 |
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| $D010 | 53264 | Register | M7X8 | M6X8 | M5X8 | M4X8 | M3X8 | M2X8 | M1X8 | M0X8 | MSBs of X coordinates |
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| $D011 | 53265 | Register | RST8 | ECM | BMM | DEN | RSEL | YSCROLL | | | Control register 1 |
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| $D012 | 53266 | Register | | RASTER | | | | | | | Raster counter |
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| $D013 | 53267 | Register | | LPX | | | | | | | Light pen X |
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| $D014 | 53268 | Register | | LPY | | | | | | | Light pen Y |
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| $D015 | 53269 | Register | M7E | M6E | M5E | M4E | M3E | M2E | M1E | M0E | Sprite enabled |
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| $D016 | 53270 | Register | - | - | RES | MCM | CSEL | XSCROLL | | | Control register 2 |
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| $D017 | 53271 | Register | M7YE | M6YE | M5YE | M4YE | M3YE | M2YE | M1YE | M0YE | Sprite Y expansion |
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| $D018 | 53272 | Register | VM13 | VM12 | VM11 | VM10 | CB13 | CB12 | CB11 | - | Memory pointers |
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| $D019 | 53273 | Register | IRQ | - | - | - | ILP | IMMC | IMBC | IRST | Interrupt register |
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| $D01A | 53274 | Register | IRQ | - | - | - | ELP | EMMC | EMBC | ERST | Interrupt enabled |
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| $D01B | 53275 | Register | M7DP | M6DP | M5DP | M4DP | M3DP | M2DP | M1DP | M0DP | Sprite data priority |
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| $D01C | 53276 | Register | M7MC | M6MC | M5MC | M4MC | M3MC | M2MC | M1MC | M0MC | Sprite multicolour |
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| $D01D | 53277 | Register | M7XE | M6XE | M5XE | M4XE | M3XE | M2XE | M1XE | M0XE | Sprite X expansion |
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| $D01E | 53278 | Register | M7M | M6M | M5M | M4M | M3M | M2M | M1M | M0M | Sprite-sprite collision |
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| $D01F | 53279 | Register | M7D | M6D | M5D | M4D | M3D | M2D | M1D | M0D | Sprite-data collision |
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| $D020 | 53280 | Register | - | - | - | - | EC | | | | Border colour |
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| $D021 | 53281 | Register | - | - | - | - | B0C | | | | Background colour 0 |
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| $D022 | 53282 | Register | - | - | - | - | B1C | | | | Background colour 1 |
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| $D023 | 53283 | Register | - | - | - | - | B2C | | | | Background colour 2 |
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| $D024 | 53284 | Register | - | - | - | - | B3C | | | | Background colour 3 |
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| $D025 | 53285 | Register | - | - | - | - | MM0 | | | | Sprite multicolour 0 |
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| $D026 | 53286 | Register | - | - | - | - | MM1 | | | | Sprite multicolour 1 |
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| $D027 | 53287 | Register | - | - | - | - | M0C | | | | Sprite 0 colour |
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| $D028 | 53288 | Register | - | - | - | - | M1C | | | | Sprite 1 colour |
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| $D029 | 53289 | Register | - | - | - | - | M2C | | | | Sprite 2 colour |
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| $D02A | 53290 | Register | - | - | - | - | M3C | | | | Sprite 3 colour |
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| $D02B | 53291 | Register | - | - | - | - | M4C | | | | Sprite 4 colour |
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| $D02C | 53292 | Register | - | - | - | - | M5C | | | | Sprite 5 colour |
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| $D02D | 53293 | Register | - | - | - | - | M6C | | | | Sprite 6 colour |
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| $D02E | 53294 | Register | - | - | - | - | M7C | | | | Sprite 7 colour |
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| $D02F-$D03F | 53295-53311 | Unused | ($FF on read, ignored on write) | | | | | | | | |
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| $D040-$D3FF | 53312-54271 | Same as $D000-$D03F (mirror every 64 bytes) | | | | | | | | | |
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## Notes
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- The bits marked with '-' are not connected and give "1" on reading.
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- The registers $D01E and $D01F cannot be written and are automatically cleared on reading.
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- The RES bit (bit 5) of register $D016 has no function on the VIC 6567/6569. On the 6566, this bit is used to stop the VIC.
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- Bit 7 in register $D011 (RST8) is bit 8 of register $D012. Together they are called "RASTER". A write access to these bits sets the comparison line for the raster interrupt.
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</content>
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