PROMAL for the Commodore 64 edit / delete

An indentation-structured language for the C64. This would have been roughly contemporary with occam. Looks like quite a decent (B-ish) language.

to 6502 c64 commodore compiler indentation language-design retrocomputing software ... on 03 October 2014

Ray Carlsen's Home Page edit / delete

Repair guides for all the Commodore 8-bit machines and many of the peripherals (disk drives, monitors).

to 6502 8bit c128 c16 c64 commodore disk electronics monitor psu repair retrocomputing ... on 05 August 2014

base:start [Codebase 64 wiki] edit / delete

Loads of information on low-level programming on the C64.

to c64 commodore demos programming retrocomputing ... on 07 September 2013

Index of /docs/c64-dissected/pla/ edit / delete

A detailed study of the C64 PLA. There's a project elsewhere to replicate this.

to c64 commodore custom-chips pla retrocomputing reverse-engineering ... on 31 August 2013

[CSDb] - User Forums edit / delete

Some interesting C64 low-level programming stuff here.

to 1541 6502 c64 retrocomputing ... on 11 July 2013

the_ninja-method:nmis_and_distributed_jitter-correction_routines [Codebase 64 wiki] edit / delete

lft mentioned in his "Poems for Bugs" talk that this C64 synchronisation trick is very clever. He's right! (Set up the CIA's timer registers so that they form a jump instruction, where the target address depends on the position within the line...)

to c64 cute-code demos retrocomputing ... on 16 April 2013

GCR decoding on the fly edit / delete

As it says -- very neat.

to 1541 6502 c64 floppy gcr retrocomputing ... on 15 April 2013

How many Commodore 64 computers were really sold? « pagetable.com edit / delete

Estimating this from the serial numbers -- and why the figures Tramiel et al. have given are obvious rubbish.

to ag0700 c64 commodore history retrocomputing sales ... on 15 January 2013

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