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Building the Tynemouth Mini PET

2020-07-05 by Michael Steil

Tynemouth Mini PET at FTW8b.com

Categories 6502, Commodore, Hardware, PET, Teardown 2 Comments

Ultimate Commodore Charset / PETSCII / Keyboard Reference

2020-06-09 by Michael Steil

Another addition to the The Ultimate C64 Reference: We’re adding character sets, PETSCII codes and keyboard layouts – supporting eight different Commodore computers. read more

Categories 6502, Archeology, C64, Commodore, KERNAL, PET, TED, VIC-20 7 Comments

The Commodore IEEE-488 Cartridge for C64

2019-05-13 by Michael Steil

Commodore 64 disk drives were usually connected through the slow serial bus. This article shows some hi-res photos of the Commodore “IEEE-488 cartridge”, which made the faster PET drives available for the C64. read more

Categories C64, Commodore, Commodore Peripheral Bus, Floppy Disks, PET, Teardown 6 Comments

Commodore Peripheral Bus: Part 1: IEEE-488

2019-03-26 by Michael Steil

In the series about the variants of the Commodore Peripheral Bus family, this article covers the lowest two layers (electrical and byte transfer) of the IEEE-488 bus as found on the PET/CBM series. read more

Categories Commodore, Commodore Peripheral Bus, Floppy Disks, GitHub, PET Leave a comment

Building the Original Commodore 64 KERNAL Source

2017-06-13 by Michael Steil

Many reverse-engineered versions of “KERNAL”, the C64’s ROM operating system exist, and some of them even in a form that can be built into the original binary. But how about building the original C64 KERNAL source with the original tools? read more

Categories 6502, Archeology, C64, Commodore, GitHub, KERNAL, PET 12 Comments

Microsoft BASIC for 6502 Original Source Code [1978]

2015-01-13 by Michael Steil

This is the original 1978 source code of Microsoft BASIC for 6502 with all original comments, documentation and easter eggs: read more

Categories 6502, Archeology, BASIC, PET 38 Comments
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