Color RAM
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The color RAM or color memory of the C64 starts in the memory address 55296 ($D800) and ends in 56295 ($DBE7).
For each character in every row (40 chars per row; 0-39) and column (25 columns; 0-24) one of 16 colors (see color table) can be assigned. The color values 0-15 are only used in the lower nibbles. The upper nibbles are undefined and are purely random values.
The BASIC command POKE is used for coloring, for example: POKE 55296,1
sets the 8x8 pixel block in the upper left corner to white.
Addresses[edit | edit source]
Hex Address | Dec Address | Type | Purpose |
---|---|---|---|
$D800-$DBE7 | 55296-56295 | 1/2 kB (1000 nibbles) of color memory. | |
$DBE8-$DBFF | 56296-56319 | Unused |
See also[edit | edit source]
- Screen RAM for printing chars
Hardware Assembly of the C64 · Hardware portal
Components of the C64: CPU · VIC · SID · CIA · PLA · RAM · ROM · Color RAM