instruction 0x7c, adci should add df? about 1802uno HOT 3 CLOSED

I just saw this. Will have to take a look.

from 1802uno.

I wrote a similar emulator (much less efficient that yours) and harnessed your code that. I fed random op codes into both until the results came out the same. The only things I found were the issue described in this thread and a weird corner case with short jumps at the end of a page. There's a description here: http://bitsavers.trailing-edge.com/components/rca/cosmac/MPM-201A_User_Manual_for_the_CDP1802_COSMAC_Microprocessor_1976.pdf

I used my the emulator which I coded for this: https://github.com/sjaturner/microwriter_mw4

Thanks again for your excellent work!

from 1802uno.

Attempted to fix both of these plus an old BIOS problem. Thanks!

from 1802uno.