| R/W | ADR | HEXADR | NAME | DESCRIPTION | OS |
|---|---|---|---|---|---|
| write | 54279 | $D407 | PMBASE | PM data base address (MSB) | both |
The PMBASE write-only register sets the base of memory occupied by Player-Missile Graphics. According to bit 4 of DMACTL:
- when it is 0, the PMG memory area occupies 1024 ($400) bytes of memory and only upper 6 bits of PMBASE matter, so the PM memory area can be set to begin of 1KB boundary.
- when it is 1, the PMG memory area occupies 2048 ($800) bytes of memory and only upper 5 bits of PMBASE matter, so the PM memory area can be set to begin of 2KB boundary.
see also: Player Missile Topics Pm-memory-map
previous: VSCROL
next: CHBASE
Add new attachment
Only authorized users are allowed to upload new attachments.
Articles
Hardware
Software
Applications
Memory Map Topic list
MicroUSB
AllNews
FAQ
Index
Languages
Code
What's New?
Voice and Data Cassettes
Atari Program Exchange (APX)
Atari Learning System Software
PLATO (Programmed Logic for Automated Teaching Operation)
Official country specific Atari software
Thanks
Rarity 10
Statistics
Hardware
Software
Applications
Memory Map Topic list
MicroUSB
AllNews
FAQ
Index
Languages
Code
What's New?
Voice and Data Cassettes
Atari Program Exchange (APX)
Atari Learning System Software
PLATO (Programmed Logic for Automated Teaching Operation)
Official country specific Atari software
Thanks
Rarity 10
Statistics
© 2010-2021 AtariWiki
All content in the Wiki is licensed under Creative Commons Share Alike License
, unless otherwise noted.
All content in the Wiki is licensed under Creative Commons Share Alike License
, unless otherwise noted.