GrantMeStrength / RetroComputerInstructionManual

A guide to using the new range of retro-inspired 8080/Z80 based computers
18 stars 2 forks source link

opcodes #1

Open shloimeboruch opened 3 years ago

shloimeboruch commented 3 years ago

the chart of Intel 8080 opcodes is wrong. it looks as if some, not all, of the opcodes were converted a second time from hex, as if they were in decimal. for example, according to the list of opcodes on page a-5 of the Intel 8080 manual, 21H (decimal 33) is LXI H,D16 whereas this chart shows it at 15H (decimal 21).

otherwise, this is a great reference resource, especially with the flags information.

(and I'd be happy to help straighten this out, btw.)

shloimeboruch commented 3 years ago

(i'm a total newbie to github, so i'll probably screw things up until i get acclimatized. otherwise, i've been programming since about 1972, including some mainframe assembler, which is incredibly rusty by now. that's my excuse, and i'm sticking to it!)

shloimeboruch commented 3 years ago

finished fixing the octal and hex values, but i have no idea how to post the changes. the message "waiting for fork" just never seems to go away.