Search Results for "supersoft"
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Supersoft Graphics Board May 30, 2017
Do you have a Supersoft graphics board or any software for it? Please contact me at .
More photos of the Supersoft HR80 board above, along with photos of Supersoft HR40 graphics taken by Andy Grady, can be found in this Flickr album.
Documentation
Installation Instructions (PDF)
GRAPHIX Manual (PDF)
GRAPHIX Source Code Listing (PDF)
GRAPHIX Source Code Notes (PDF)
3022/4022 High Resolution Screen Dump (PDF)Advertisements
Supersoft Catalog Excerpt, Spring 1982 (PDF) – Includes BASIC command usage.
Supersoft Catalog Excerpt, Winter 1982 (PDF)
Supersoft Catalog Excerpt, Summer 1984 (PDF)Credits
- Andy Grady found a SuperSoft HR40 graphics board and got it working.
- Anti Florian posted the list of connections to the cbm-hackers list that Andy used.
- Steve Gray did an quick disassembly of Andy’s ROM to find the commands.
- David Viner provided the Supersoft catalog excerpts that gave command usage.
- Stuart provided all of the original Supersoft documentation.
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Supersoft BASIC 2+4 Jan 18, 2014
The BASIC 2+4 board from Supersoft is a daughterboard that provides software-selectable BASIC 2.0 and BASIC 4.0. The machine boots to BASIC 4. Entering “SYS 65520“ switches to BASIC 2 and back again.
The board is designed for older PET machines. Compatible PETs have the BASIC ROMs in sockets UD6-9 and dynamic RAM. To install the BASIC 2+4, the BASIC ROMs are removed and the BASIC 2+4 is installed into one of those sockets. A cable is then connected from the BASIC 2+4 to the J9 expansion header.
Photos
Top Side
Top Side: Parts Placement
Top Side: EPROMs Removed
Bottom SideThe board has no reference designators. The “B4” and “B2” EPROMs are 27128s (16 KB). The “004” EPROM is a 2764 (8 KB). The other chips are a 74LS174 (close to the “B2” EPROM) and a 74LS139.
Note the photo with the EPROMs removed. The instructions call it the “BASIC 2+4 BOARD” but the board has “Microport Issue 2.0” written on it under the “B2” EPROM. The board also has two space for 28-pin chips that are unpopulated and has various pads on both sides that are for reconfiguration. It’s likely this same circuit board was used for other products.
Firmware
B4.BIN – 27128 (16 KB), Sticker reads “B4”
B2.BIN – 27128 (16 KB), Sticker reads “B2”
004.BIN – 2764 (8 KB), Sticker reads “004”Resources