MediaWiki:Sitenotice:
2024-03-02: The wiki ran out of disk space, so things were not working. This has been resolved by adding another 5GB of quota ;-) Thanks to Tim Lindner for reporting the issues.
2020-05-17: If a page gives you an error about some revision not being found, just EDIT the page and the old page should appear in the editor. If it does, just SAVE that and the page should be restored. OS-9 Al (talk) 12:22, 17 May 2020 (CDT)
Deluxe Color Computer: Difference between revisions
m (→Hardware) |
(Added Gates Easter Egg info) |
||
| Line 54: | Line 54: | ||
Advanced Color BASIC includes a number of new features as well: | Advanced Color BASIC includes a number of new features as well: | ||
* [[Advanced Color BASIC Documentation]] | * [[Advanced Color BASIC Documentation]] | ||
[[https://www.pagetable.com/?p=43 Bill Gates' Easter Egg]] exists in the Advanced Color BASIC as well from BF67 to BF70 | |||
Revision as of 21:12, 19 February 2024
Deluxe Color Computer
Pre-Production Boards
Three pre-production (PP) boards for the canceled Deluxe Color Computer exist:
- Boisy Pitre has gathered two of the Deluxe pre-production boards, one from John Prickett and one from Greg Zumwalt which did not have Advanced or Deluxe ROMs.
- Brian Weiseler has Robert Kilgus' Deluxe with Advanced Color BASIC 00.00.07 ROMs intact
Hardware
The Deluxe Color Computer upgrades the Color Computer 2 to include new hardware and software features
- Motorola 6847 T1 Video Display Generator (VDG) with true lowercase and lowercase descender characters
- General Instruments AY-3-8913 Programmable Sound Generator the same as Speech/Sound Cartridge (26-3144A), Symphony-12, Philharmonic-12, or CoCo PSG
- American Megatrends (AMI) S6551P Asynchronous Communication Interface Adapter (ACIA) the same as used in the Deluxe RS232 Pak
- Additional circuitry for 60Hz timer interrupts
- Additional color burst control
- Additional address decoding to make the PSG and S6551 into the CoCo memory map
Memory Map
- $FF00 - $FF1F - PIA 0
- $FF20 - $FF2F - PIA 1
- $FF30 - Option Control Register
| Bit Position | Function |
|---|---|
| 0 | A14 |
| 1 | A15 |
| 2 | Enable above for RAM range: $4000-$7FFF |
| 3 | Alternate color set (blue / green alpha display) |
| 4 | N/A |
| 5 | N/A |
| 6 | Enable 60Hz interrupt |
| 7 | Enable cartridge select: 1 internal / 0 external |
- $FF38 AY-3-8910 Data register
- $FF39 AY-3-8910 Control Register Latch
- $FF3C SY6551 Transmit / Receive Register
- $FF3D SY6551 Read status registers
- $FF3E SY6551 Command register
- $FF3F SY6551 Control Register
Software
The Deluxe Color Computer contains an upgraded Color BASIC which merges Color BASIC, Extended Color BASIC, and Disk Extended Color BASIC into a single 32K Advanced Color BASIC ROM image.
Advanced Color BASIC includes a number of new features as well:
[Bill Gates' Easter Egg] exists in the Advanced Color BASIC as well from BF67 to BF70