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The UNIVAC I had an assembly language that was mostly single-letter opcodes. Here is the "Code Card" developed by Grace Hopper:


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The V1 Unix B manpage uses .s as the extension for intermediate assembly files used during the build. This is the earliest use of .s that I can find, and would correspond to November 1971 at the latest. There were assemblers on systems with file systems before Unix, but none that I’m aware of used .s. Some like DECsys don’t appear to have extensions; other ...


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No - at least not in the sense of some shared data structure that different music editors were all capable to work with, as was the case with fx MOD files and derivatives. C64 music is typically distributed as executables which contain both play routine and music data (cf. also this answer). Many different players and editors exist, some native, some for &...


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LCD as mentioned before your display init is not correct (too fast) you do not need to check busy flag you just need to add waits... This is my driver for LCD1602 on AVR32 which uses the same LCD controller using 4bit interface an 2x16 character LCD: //------------------------------------------------------------------------------------------ #ifndef ...


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For completeness, I’ll mention DJLINK, an OMF linker written by DJ Delorie (who also created DJGPP). This is probably not the best option: it never seems to have left proof-of-concept stage, and compiling it on Linux with modern GCC requires a little patching (to add missing const qualifiers and header includes). Nevertheless, I managed to use it with some ...


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