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by LuciOfStars
438 days ago
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No AI or OCR here, just an idiot with too much free time. After seeing that the AltaBASIC source posted was a scan of paper tape, I thought having it in a digital document proper would be good for preservation and novelty's sake. I've never written Assembly, and I'm not a typography expert! Feel free to point and laugh at any silly mistakes. Let's see how many days it takes! |
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Not trying to dissuade you, but here's some things you should consider:
• Turn off your spell checker, it will only make this more difficult! It certainly won't help with the code itself, and it seems like you want to reproduce everything perfectly, including typos in the comments.
• I'd strongly suggest to at the very least become a bit familiar with 8080 assembly language before attempting this.
• The tools used to produce this output add another layer of complications. They used the PDP10 system's assembler with a set of macros to adapt it to generate 8080 code, so it's using somewhat different syntax and directives than those of 8080-native assemblers (like the ones from Intel or Digital Research).
• Some characters are hard to read, and without knowledge of the context and at least some of the PDP10-specific syntax it will be impossible to just guess. E.g. decimal numbers are sometimes prefixed with '^D', and octal numbers with '^O', which look quite similar in this scan. The 'RADIX' directive changes the default for when there is no such prefix, it should be 10 for most of it, but I think that it does start out as octal. Memory addresses will be octal (like 'RAMBOT==^O20000' in line 13), ASCII characters could be either but they seem to prefer decimal for those ('^D13' is CR, '^D10' is LF).