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Thanks for catching that! I've fixed it in a branch that I'll be merging soon, which also adds support for CHIP-8E instructions.
from chip-8.
I have most of the ocodes in fresh memory since I'm currently hacking away at a Chip-8 emulator in assembly on a small PIC16F1705 bitbanging composite PAL TV-out. Did another a couple of years back on a PIC24 in C outputting on a small LCD display - but during the intervening years I apparently have forgot most of the Chip-8 design, I had to read thru Gowgod's and a few others to get up to speed again.
I had even forgot that the Chi8-8 code needs to be in RAM - I just assumed the Vx registers would be enough for data :-) So now I'm stuck with a chip having only 1K ram whereof 256 bytes are used for the video buffer memory. So I need to make some kind of dynamic translation table in ram that maps specific Chip-8 code memory locations into the ram area. Hopefully the classic games are not using more R/W data cells then I can map into my puny ram area..
Your Chip-assembler will come in handy for writing test apps. So will your emulator - perfect for verifying my code.
from chip-8.
You probably already know about this, but in case you don't, https://github.com/trapexit/chip-8_documentation is a great resource. Not only for simple things like opcodes (which I'm hoping my repo is a good mirror for), but also old magazine scans: articles, programs, the original COSMAC ELF interpreter, etc.
from chip-8.
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