Table-based version

Directory /pub/cbm/firmware/computers/c64/

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drives@

Disk drive firmware

other/

Firmware of cartridges and other devices

schematics@

Commodore 64 schematic diagrams

64c.251913-01.bin

Commodore 64c BASIC and KERNAL, a 23128 ROM chip composed from the 901226-01 BASIC and 901227-03 KERNAL ROMs.

64gs.390852-01.bin

Commodore 64GS BASIC and KERNAL, a 27128 EPROM chip from a West German machine DA5 016014E, assy no. 250469, 252311 rev.B. The chip has the label � 1984, 90 CBM / 390852-01 / C64GS ROM CS=DF34. The BASIC part is otherwise normal, but it uses fill byte $00 instead of $AA. The KERNAL has been modified from the 901227-03, and most modifications are in the area $F72C-$FC92, which also contains a copyright message. Many jumps have been changed to $FB4D, which in turn jumps to $F707, which in turn causes I/O error #5.

README

Commodore 64 parts and firmware versions

basic.901226-01.bin

Commodore 64 BASIC V2. The first and only revision.

basic.c65.bin

Commodore 64 BASIC V2, taken from the Commodore 65 ROM. Uses fill byte $FF instead of $AA.

characters.901225-01.bin

The character generator ROM.

kernal.4064.901246-01.bin

Commodore PET64 or 4064 KERNAL. With black&white startup colors, and with a different bootup message. Machines with color monitors used the standard Commodore 64 KERNAL ROM.

kernal.4064.readme

More specific information about the PET64 a.k.a. 4064 a.k.a. Educator 64 KERNAL ROM.

kernal.901227-01.bin

Commodore 64 KERNAL ROM Revision 1. The RS-232 timing table is designed for exactly 1 MHz system clock frequency, although no C64 runs at that clock rate. Ripped from a very old American C64.

kernal.901227-02.bin

Commodore 64 KERNAL ROM Revision 2. Can be found on 1982 and 1983 models.

kernal.901227-03.bin

Commodore 64 KERNAL ROM Revision 3. The last revision, also used in the C128's C64 mode.

kernal.c65-caff.bin

Commodore 64 KERNAL ROM, taken from a Commodore 65 ROM. Dated 1990.

kernal.c65-e96a.bin

Commodore 64 KERNAL ROM, taken from a Commodore 65 ROM. Dated 1991.

kernal.swedish.bin

Commodore 64 KERNAL ROM Revision 3, patched for Swedish/Finnish keyboard layout.

kernal.sx.251104-04.bin

Commodore SX64/DX64 KERNAL. With different startup colors, and tape routines disabled.

kernal.sx.swedish.bin

Commodore SX64/DX64 KERNAL, patched for Swedish/Finnish keyboard layout.

pla.txt

Logic equations in Abel format for the 82S100 PLA chip used in the C64, and a JEDEC file that can used to burn a 82S100 as a C64 PLA.

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