Closed C128, C128D, C128DCR multifunction internal function ROM (U36) with switchable servant, keydos, BASIC8, GEOS128, Superchip A, B, Turbo assembler ROMs

Status
Not open for further replies.

SuperCPU

New member
Banned
Rating - 100%
2   0   0
Joined
Oct 18, 2014
Posts
92
Country
Hungary
Region
Szeged
C128, C128D, C128DCR multifunction internal function ROM (U36) with switchable servant 4.84, keydos, BASIC 8, GEOS128 V2 USA 1571 ROM. I use a 27C010 128 KB EPROM with disable switch (pin 22 chip enable).
Start CTRL+reset. http://www.scribd.com/doc/4711978/The-Servant-for-the-Commodore-128
Start ALT+reset. http://cottonwoodbbs.dyndns.org/wiskow/keydosdoc.txt
Start CTRL+reset, 80 column only. http://project64.c64.org/misc/basic8.txt
Start 80 column, required GEOS boot disk. http://zimmers.net/geos/GEOSFAQ.html
4 ROM = 50 USD + shipping 9 USD. Paypal gift only.

U36 servant, keydos, BASIC8, GEOS128.jpg

Available other U36 ROMs: Superchip A, Superchip B, Turbo assembler, GEOS 128 USA 1581, GEOS 128 German 1581.
Possible selectable 8 ROMs with 3 switches in 29C020 256 KB EEPROM, but required external 5VDC to EEPROM pin 32.
http://www.dvniits.ru/rom/29c020.gif
The U36 socket = 27256 32 KB: http://ist.uwaterloo.ca/~schepers/ROMS/PINOUTS/27256.png
27256 pin 28 (5VDC) = 29C020 pin 30 A17.

Superchip A, HELP key menu:
F1 = Nibbler
F2 = GO64:LOAD":*",8,1
F3 = File Copier
F4 = Seq file reader
F5 = Terminal
F6 = Screen Dump

Superchip B, start CTRL+reset. http://www.bombjack.org/commodore/applications/Super-81_Utilities_Manual.pdf

TURBO ILLASM V3.0 - LYNCHBIT IN 1996. http://www.fairlight.to/docs/text/tass_docs.html
 
Last edited:
Status
Not open for further replies.
Top Bottom