Commodore 1750, 1700 and 1764 Ram Expansion Unit auto detection.
In this video I discuss auto detecting the Commodore 1750, 1700 and 1764 Ram Expansion units. So far 100% accurate detection has been achieved. There is C code samples plus explanation.
In this video I discuss the basic principles of operating a 1750 REU. The techniques I explain are also applicable to the 1700 & 1764 REU models.
GroundhogGrafix Retro Website: http://groundhoggrafixretro.com/
1700/1750 REU Manual: ftp://ftp.zimmers.net/pub/cbm/manuals/peripherals/1700-1750_Ram_Expansion_Module_Users_Guide.pdf
!700/1750 REU Test/Demo disk & 1764 Utility disk : http://www.zimmers.net/anonftp/pub/cbm/demodisks/other/index.html
Power C on .D81: http://groundhoggrafixretro.com/wp-content/uploads/2021/02/PowerC__D81.zip
Update explaining changes to the channel.
GroundhogGrafix Retro Website: http://www.groundhoggrafixretro.com
GroundhogGrafix Retro on Lbry: https://open.lbry.com/@ggr:7
Discussion of data types, pointers to data types and how to work around some problems that exist in Power C.
GroundhogGrafix Website: http://groundhoggrafixretro.com/
Power C Compiler on .D81: http://groundhoggrafixretro.com/wp-content/uploads/2021/02/PowerC__D81.zip
Introduction to the usage of Power C for the Commodore 64
SuperCPU Vice Emulator:
https://vice-emu.sourceforge.io/
Power C Manual, Disk Images and Extras:
https://www.lyonlabs.org/commodore/onrequest/powerc/index.html
Power C in D81 format (Commodore 1581):
http://groundhoggrafixretro.com/wp-content/uploads/2021/02/PowerC__D81.zip
I remove JiffyDOS from a broken 1541 disk drive and re-install it in to another working 1541 disk drive.
GroundhogGrafix Retro Website: http://groundhoggrafixretro.com/
In this video I explain how to edit .vkm files. Alternatively you can also learn what keys are mapped to what. As an added bonus I have also created a custom symbolic .vkm file for use with Power C, just download from the link below and use in VICE.
GroundhogGrafix Website: http://groundhoggrafixretro.com/
Power C VICE Keymap (.vkm): http://groundhoggrafixretro.com/wp-content/uploads/2021/02/ggr_powerc_sym.zip
This video demonstrates the TOD Clock Alarm bug once again and tests for more possible solutions.
GroundhogGrafix Retro Website: http://groundhoggrafixretro.com/
Wikipedia: https://en.wikipedia.org/wiki/MOS_Technology_CIA