It's utils/tc in the Inferno tree. 5a does both ARM32 and Thumb (because it's abstract assembly), as does 5l. On Fri, Nov 6, 2020 at 12:28 AM Don A. Bailey wrote: > Any source available? > > On Nov 5, 2020, at 6:11 PM, Charles Forsyth > wrote: > >  > There was a 5[ac] variant for Inferno (ta, tc) that produced Thumb code, > and 5l could link Thumb and ARM32 code. > That wasn't extended once Thumb-2 was issued, since it was > different enough to require a fair amount of work and we had no > immediate application on the Cortex. > > > On Thu, Nov 5, 2020 at 11:38 PM Thaddeus Woskowiak > wrote: > >> I would like to know if anyone is working on or exists an Arm Thumb >> compiler so one could use plan 9 to program Arm Cortex M0/3/4/7 >> microcontrollers directly. I know of Charles Forsyth's xc AVR compiler >> which is also interesting. Though I have yet to try it out. >> >> -taw >> >> ------------------------------------------ >> 9fans: 9fans >> Permalink: >> https://9fans.topicbox.com/groups/9fans/Tc22ac8ae61456f10-M53d9114f6a2c6402ef14fd63 >> Delivery options: https://9fans.topicbox.com/groups/9fans/subscription >> > *9fans * / 9fans / see discussions > + participants > + delivery options > Permalink > >