Table-based version

Directory /pub/cbm/firmware/computers/b/

The Commodore 600 series was known as the B128 in the United States, and the machine that was known there as the B256, was called the 700 series in Europe. These machines are also known as "CBM II Low Profile" and "CBM II High Profile", respectively.
The 600 and the 700 series are almost identical, but 700 series machines have a built-in monitor, a separate keyboard, and a different character generator ROM. The 610/710 has 128kB RAM, the 620/720 has 256kB RAM, and the 630/730 has 256kB RAM and a co-processor card (Z80 and 8088 were planned, but it is not sure if these cards actually existed).

../

[Parent directory]

drives@

Disk drive firmware

schematics@

Model B Service Manual

README

B128/B256 part list and firmware information, composed by William Levak.

b128-8000.901243-02b.bin

B128 BASIC 4, low part.

b128-8000.901243-04a.bin

B128 BASIC 4, low part, updated version.

b128-a000.901242-02b.bin

B128 BASIC 4, high part.

b128-a000.901242-04_.bin

B128 BASIC 4, high part, with some additions to 901242-04a.

b128-a000.901242-04a.bin

B128 BASIC 4, high part, updated version.

b256-8000.610u60.bin

This ROM was in the socket U60 of a Hungarian B256, mapped at address $8000.

b256-8000.901241-03.bin

B256 BASIC 4, low part.

b256-a000.901240-03.bin

B256 BASIC 4, high part.

characters-hungarian.bin

Hungarian model II character set, 8�8 matrix expanded to 8�16 by adding blank lines.

characters.901232-01.bin

Standard model II character set, 8�16 matrix.

characters.901233-03.swedish.bin

Swedish/Finnish model II character set, 8�16 matrix.

characters.901237-01.bin

Standard model II character set, 8�8 matrix expanded to 8�16 by adding blank lines.

kernal.901244-03.swedish.bin

Swedish/Finnish B128/B256 KERNAL ROM

kernal.901244-03b.bin

B128/B256 KERNAL ROM

kernal.901244-04a.bin

B128/B256 KERNAL ROM, updated version.

kernal.hungarian.bin

Hungarian B128/B256 KERNAL ROM

pla.zip

Contents of the 82S100 PLA used in the Commodore 600 series computers. Includes plans for replacing the chip with a PAL16L8.

profitext.bin

ProfiText word processing program cartridge, maps to $2000.

sfd1001-copy-u59.bin

A Hungarian copy program for the SFD 1001 disk drive.

[FTP://NIC.FUNET.FI/pub/cbm/firmware/computers/b/ | SunSITE ftp | SunSITE http]