Table-based version

Directory /pub/cbm/firmware/computers/plus4/

Here are the ROMs for the Commodore 264 series, which includes the C16, C116 and the plus/4.

../

[Parent directory]

364/

Firmware of the Commodore 364 prototype

drives@

Disk drive firmware

schematics@

Schematic diagrams

1551.318008-01.bin

1551 disk drive DOS ROM. The drive is connected to the expansion port via the TCBM interface (triple interface adapter chip).

3-plus-1.317053-01.bin

The 3-plus-1 word processor, function ROM low.

3-plus-1.317054-01.bin

The 3-plus-1 word processor, function ROM high.

3-plus-1.bin

The 3-PLUS-1 word processor. This has been saved from a running system, and therefore the bytes under the I/O area at $fd00-$ff3f are wrong. The part number is unknown, but this should be the newer of the two usual versions.

README

plus/4 parts and firmware versions

basic.318006-01.bin

Commodore 16 BASIC V3.5.

kernal.318004-04.bin

Commodore 16 KERNAL, machine language monitor and the character set. PAL-G version, revision 4.

kernal.318004-05.bin

Commodore 16 KERNAL, machine language monitor and the character set. PAL-G version, revision 5.

kernal.318005-04.bin

Commodore 16 KERNAL, machine language monitor and the character set. NTSC-M version, revision 4.

kernal.318005-05.bin

Commodore 16 KERNAL, machine language monitor and the character set. NTSC-M version, revision 5.

pla.txt

Commodore 16 and plus/4 PLA truth table and memory configuration information supplied by William M. Levak <wlevak@umich.edu>.

[FTP://NIC.FUNET.FI/pub/cbm/firmware/computers/plus4/ | SunSITE ftp | SunSITE http]