-
Notifications
You must be signed in to change notification settings - Fork 1
Screen Memory
cbmeeks edited this page Feb 19, 2013
·
11 revisions
All graphics for the VIC-II are relative to the current video bank. There are four video banks available to the Commodore 64 and only one bank can be active at a time.
| Address | Mask | Bank | Yields |
|---|---|---|---|
| DD00 | %xxxxxx11 | bank0 | 0000 - 3FFF |
| DD00 | %xxxxxx10 | bank1 | 4000 - 7FFF |
| DD00 | %xxxxxx01 | bank2 | 8000 - BFFF |
| DD00 | %xxxxxx00 | bank3 | C000 - FFFF |
All addresses are relative to the video bank. For example, using Video Bank 1 and setting D018 to 0800 yields character memory being located at $4800.
| Address | Mask | Type | Yields |
|---|---|---|---|
| D018 | %xxxx000x | charmem | 0000 |
| D018 | %xxxx001x | charmem | 0800 |
| D018 | %xxxx010x | charmem | 1000 |
| D018 | %xxxx011x | charmem | 1800 |
| D018 | %xxxx100x | charmem | 2000 |
| D018 | %xxxx101x | charmem | 2800 |
| D018 | %xxxx110x | charmem | 3000 |
| D018 | %xxxx111x | charmem | 3800 |