Extending CHIPOS with more CHIP-8 instructions

1 · Tobias V. Langhoff · April 16, 2020, midnight
In which I learn 6800 assembly in order to hack CHIPOS. This post is part of a series on writing an emulator for the DREAM 6800 computer. Read the DREAM 6800 posts and look at the emulator’s repository. The source code and binary for the modified CHIPOS (“CHIPOSLO”) can be downloaded from the CHIPOSLO GitHub repository. OK, this is a long post. There’s a table of contents to the right. I’ll get into the nitty-gritty of writing short 6800 assembly, and even though I’m an amateur on that subject,...