{"id":1641,"date":"2022-02-25T16:32:06","date_gmt":"2022-02-25T15:32:06","guid":{"rendered":"https:\/\/www.pagetable.com\/?p=1641"},"modified":"2022-02-25T16:32:06","modified_gmt":"2022-02-25T15:32:06","slug":"announcing-ccgms-future-0-1","status":"publish","type":"post","link":"https:\/\/www.pagetable.com\/?p=1641","title":{"rendered":"Announcing CCGMS Future 0.1"},"content":{"rendered":"

The CCGMS Terminal Program for the Commodore 64 is maintained again, and there is a new version: CCGMS Future 0.1, with bug fixes and new features.<\/p>\n

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History<\/h2>\n

CCGMS has a rich history: It was originally written in 1985-1988 by Craig Smith<\/a>, then binary patched<\/a> by many people over the years, and finally maintained again by alwyz<\/a> from 2016 to 2020, based on the rediscovered source code.<\/p>\n

Cleanup<\/h2>\n

As a first step, I cleaned up the source of the last version (v2021), splitting it into multiple files, renaming symbols and adding comments. The resulting source uses cc65\/ca65 to build and will generate a byte-for-byte identical v2021 PRG file \u2013 you can find this version in a branch<\/a>.<\/p>\n

Fixes<\/h2>\n

Then I started implementing fixes. In v2021, the standard user port driver was broken for PAL systems because of a bug in the lookup of the timings. Similarly, the UP9600 driver had a timing issue on PAL, but it was minor; but the fix may improve data transfer stability.<\/p>\n

Features<\/h2>\n

Finally, I added features to the XMODEM transfer protocol:<\/p>\n