Oscar64 VDC Demo

Testing and demonstrating my C128 VDC functions for the Oscar64 C compiller

Contents:

Version history and download

Introduction

Credits

Credits

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Oscar64 VDC Demo

Testing and demonstrating my C128 VDC functions for the Oscar64 C compiller

Written in 2024 by Xander Mol

https://github.com/xahmol/Oscar64Test

https://www.idreamtin8bits.com/

Credit to included music:

• Music by Nordischsound:

  Ultimate Axel F. https://csdb.dk/release/?id=228585

  Faded https://csdb.dk/release/?id=229218

Credit to included PESTCII art:

PETSCII art:

• Love is the Drug, art by Lobo. https://csdb.dk/release/?id=237148

Text scroller PETSCII font:

• Small Round Font by Cupid. https://csdb.dk/release/?id=188169

Code and resources from others used:

• Oscar64 cross compiler

  https://github.com/drmortalwombat/oscar64

  Many thanks also to https://github.com/drmortalwombat to provide extrordinary support and tips for making this and adapting Oscar64 to my needs faster than I could ask it.

• Krill's Loader, Repository Version 194, by Krill / Plush.

  https://csdb.dk/release/?id=226124

• Screens used in the demo made with my own VDC Screen Editor.

  https://github.com/xahmol/VDCScreenEdit

• Commodore logo charset created using CharPad Pro.

  https://subchristsoftware.itch.io/c64-pro-editions

• C128 Programmers Reference Guide: For the basic VDC register routines and VDC code inspiration

  http://www.zimmers.net/anonftp/pub/cbm/manuals/c128/C128_Programmers_Reference_Guide.pdf

• Tokra: For the optimal VDC registry settings for 80x50 and 80x70 textmodes

• Scott Hutter - VDC Core functions inspiration:

  https://github.com/Commodore64128/vdc_gui/blob/master/src/vdc_core.c

  (used as starting point)

• Scott Robison for teaching me how o create a C128 disk boot sector

• Francesco Sblendorio - Screen Utility: used for inspiration:

  https://github.com/xlar54/ultimateii-dos-lib/blob/master/src/samples/screen_utility.c

• DevDef: Commodore 128 Assembly - Part 3: The 80-column (8563) chip

  https://devdef.blogspot.com/2018/03/commodore-128-assembly-part-3-80-column.html

• Tips and Tricks for C128: VDC

  http://commodore128.mirkosoft.sk/vdc.html

• Steve Goldsmith - C3L Commodore 128 CP/M C Library

  https://github.com/sgjava/c3l

  (Used for inspiration and for the text wrap and random sentence generator functions)

• Bart van Leeuwen: For inspiration and advice while coding. Also for providing the excellent Device Manager ROM to make testing on real hardware very easy

• Original windowing system code on Commodore 128 by unknown author.

• Tested using real hardware (C128D and C128DCR) plus VICE.

The code can be used freely as long as you retain a notice describing original source and author.

THE PROGRAMS ARE DISTRIBUTED IN THE HOPE THAT THEY WILL BE USEFUL, BUT WITHOUT ANY WARRANTY. USE THEM AT YOUR OWN RISK!

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