# veryturbos-chelsea-2026-08-18/README.md Here's a hasty release of a SLOW TurbOS for the TFR/911H as a TurboSim. BUGS: it does not send clock interrupts, so don't sleep, or try anything running in parallel or background or pipes. FEATURES: * Has Basic09 (but there's no disk, so you cannot save) * Emits instruction logs, annotated with assembly lines, if you use `--borges=borges/` SLOW: It takes like 12 seconds until you get the `TOS>` prompt, and you will notice that keystroke echos are slow. WARNING: `_log` file gets big quickly! Source was on the `chelsea` branch, but reconstruction was not tested, so I could have left something out: https://github.com/strickyak/tfr9/tree/chelsea ## HOW TO FLASH: While holding down the FLASH button, press and release the RESET button. Wait a couple of seconds for the mount to appear. ``` cp veryturbos.uf2 /media/$USER/RP* ``` And the mount should automatically disappear. ## HOW TO RUN Use these same flags for best results. Hold down the RESET while you start this command, and then release it after 1 second. If it fails quickly, just try it again, or look in the `_log` for more error messages. Of course, if you don't want the log, end with `2>/dev/null`. ``` $ tconsole.linux-amd64.exe --centipede --borges borges/ --level=1 2>_log Internal web server started at ":8080" [recover: "PANIC: serial.Open: open /dev/ttyACM0: no such file or directory"] :1: :2: :r: :p: :g: IDoTurbo9os Install_OS... DoTurbo9os Install_OS... n=844b begin=7ab5 DoTurbo9os Install_OS... begin=7ab5 entry=7ac9 Shell TOS:mdir -e Module directory at 00:00:59 Addr Size Typ Rev Attr Use Module name ---- ---- --- --- ---- --- ------------ 7AB5 D4E C1 0 r... 0 kernel 8803 36 C0 0 r... 1 init 8839 195 C1 1 r... 1 tk 89CE 70A C1 0 r... 1 ioman 90D8 6D0 D1 0 r... 2 scf 97A8 107 E1 0 r... 2 scvt 98AF 3C F1 7 r... 2 term 98EB 32 11 1 r... 1 go 991D 60F 11 0 r... 1 shell 9F2C 128 11 0 r... 0 mfree A054 1BD 11 0 r... 2 mdir A211 279 11 0 r... 0 procs A48A 4D 11 0 r... 0 sleep A4D7 5A29 11 0 r... 0 Basic09 TOS:basic09 BASIC09 6809 VERSION 01.01.00 COPYRIGHT 1980 BY MOTOROLA INC. AND MICROWARE SYSTEMS CORP. REPRODUCED UNDER LICENSE TO TANDY CORP. ALL RIGHTS RESERVED. Basic09 Ready B:$procs Usr # id pty state mem primary module ----- --- --- -------- --- -------------- 0 4 0 active 3 shell