Wednesday, May 1, 2024

C64 RAM locations for programmable characters

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  Taking the information from Jim Butterfield's interactive program we can determine a few optimal choices for configuring the location ...
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Tuesday, April 30, 2024

Raster Interrupts for C64

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  The VIC II chip (video IC) that gives the C64 a lot of its characters (pun intended), includes registers to set up interrupts at certain r...
Monday, April 29, 2024

MLX II Listing for C64 Character Sets Editor

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Shown with 80s theme colors (key: 6) Back in the day we would enter program listings from magazines.  That's how we got new utility and ...
Friday, April 19, 2024

Edit Programmable Characters on Vic-20 and C64

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  The current release is considered fully functional and complete. Links: Vic-20 D64 (1541 image)  and source Commodore 64 D64 (1541 image) ...
Wednesday, February 7, 2024

Calculator for Commodore 64 and other CBM BASIC models

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  Introduction Wow! A new desktop calculator for Commodore.  Programmed all by myself in BASIC.  Wow, so impressed!   Or not.  Doesn't e...
Saturday, December 30, 2023

Commodore 128 VDC Reference

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  The VDC8563 and VDC8568 were used in Commodore 128 and Commodore 128D computers for the secondary 80-column text screen.  There were other...
Saturday, December 9, 2023

Commodore keyboards go wireless for my portable emulators

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The c-simple-emu6502-cbm project supports a number of ESP32 platforms to provide a subset of Commodore C64 (and Vic-20, C128) emulation, an...
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