These are designed as a drop-in replacement for the original aging and power hungry ROMs. Unlike other designs and 28 to 24 pin EPROM adapters, these hide all the ugly stuff out of sight to provide the cleanest possible look. Power consumption is around 5mA (25mW) vs the 70mA (350mW) of the original mask ROMs. As such these run completely cool and consume a fraction of the power, ensuring they will almost certainly outlast all the originals and help lower the overall temperature of your machine.
Variants
- Commodore Character ROM
- 901225-01 - Standard drop-in replacement
- 901225-01+ - Switchable between regular C64 font and PET style font using a tiny switch on the underside of the board.
- 1541 Kernal/Hi-ROM
- 901229-05 - Standard drop-in replacement
- 901229-05 with licensed JIFFYDOS - switchable, really needs a JiffyDOS kernal in the 64 also
Not suitable for the C64 shortboard rev. 250469 or the 1541-II.
TeensyROM is a ROM emulator, fast loader, MIDI and Internet cartridge for the Commodore 64/128 based on the Teensy v4.1 microcontroller board. TeensyROM now supports an NFC Loading System. Just tap an NFC tag on a reader to start any program. Designed with medium soldering skills in mind.
Load disk images, PRGs, P00s, CRTs from flash drive, on-board flash storage, microSD card, or across the network. Plug a MIDI device into the USB port and play your SID chip in realtime; works with many composition and sequencing packages. Works with modern Commodore networking software, emulates a modem for terminal emulators. Configuration stored in on-board non-volatile storage.
This repository collects the original source code of various Commodore Business Machines (CBM) computers converted to a modern encoding (ASCII, LF, indentation).
Using kernalemu and cbm6502asm, almost all source in this repo can be built from the UNIX command line. To build everything, run build.sh from the Unix command line, on a case-insensitive filesystem.
In the repo:
- All of the KIM and AIM machines
- All of the CBM machines
- All of the PET machines
- VIC-20
- C64, 65 and 128
- Ultimax
- C16/C116/+4
- All floppy disk drives
- Printer ROM (seems there was only one)
- Software that came in ROM
- Internal software devkits and tools
- Some games that were only on cartridge
- Firmware for an Amiga serial interface