MS BASIC

[rumbledethumps]

MS BASIC for the 6502 is now open source.
https://github.com/microsoft/BASIC-M6502

Here's some info about the assembler MS used:
https://www.pagetable.com/?p=774

[Conjada]

That's awesome, I think... lol. I just got my RP6502 working last night and I'm doing everything I can think of today, to get a feel for it. I've been messing around with ehBasic and the one thing that immediately struck me was the lack of a "renum" command and a way to look at the files on disk ("cat", was it, back in the day?). So, I'm definitely interested. But, I'm so new to the Picocomputer, I've got no complaints! Great job!

ETA: I wonder if this is the original or from one of the bootleg paper tapes that Bill used to get so mad about? LOL.

[netzerohero]

MS BASIC for the 6502 is now open source. https://github.com/microsoft/BASIC-M6502

The original m6502.asm code that MS open sourced 3-Sept-2025 was originally targeted to the MACRO-10 assembler running on a PDP-10. See this history by Michael Steil who has done the work of targeting the source to a modern assembler like ca65 in the cc65 tool-chain.

[vruumllc]

Ben Eater got it working on his little computer here:

https://www.youtube.com/watch?v=XlbPnihCM0E
https://www.youtube.com/watch?v=gOwi2p1pzVM
https://www.youtube.com/watch?v=aVVKgwr_SfQ

[rumbledethumps]

MS BASIC already in ca65 format: https://github.com/mist64/msbasic
IO examples in ca65 format: https://github.com/picocomputer/ehbasic/blob/main/src/min_mon.s
Combined with BE's video should be a good time for someone.