Well, I finished my first pre-MVP #FoundationOS shell script. It opens a file called "test", and displays some content from the file. The kernel runs in Linux userspace, and isn't quite a true OS yet, but it demonstrates successful inter-process communication between the #SubSky p-code userspace shell and the C "kernel"'s filesystem server process.

Here's the script!!

// "cd" to env
ci= #1

// Open "DOS C:" root DB, and "cd" to it
open \06\80\FB\7D\06\B8\DF\67\80\00\00\00\00\00\00\00\00DOS\20C: #0 #0 #0 #0 #1
ci= $r

// Open the file "test" inside the DB, and "cd" to it
open \04\00\00\00\00\00\00\00\80\00\00\00\00\00\00\00\00test #0 #0 #0 #80000000 #1
ci= $r

// Read 10 bytes from the beginning of the file
read #0A #0 #0
read #10 #0 #0

// Close the file
close
...a bit more complicated than running $hd test, but the debug shell is basically just a CLI interface to the syscall interface, for now. A future improved shell will not require you to enter so many magic numbers....

The Not Implemented crash which happened when I closed the file happened because the "host db" process which serves the "DOS C:" root (the external host filesystem) became the sole owner of the file the shell process opened, and I haven't written the appropriate callback for that event.

#OSDev #FoundationProject

After researching open-source licensing further, I've adjusted the licensing in the #SubSky project.

• The CPU library and the SubSky stdlibs are under the LGPLv3
• The examples are under the CC0 1.0 (basically public domain).
• Everything else (emulator, compiler) are under the GPLv3

Before, everything was licensed under the LGPLv3.

I know no one would want to use this project for something commercial, at this time anyway, but I suggested in the README the possibility of paid non-GPL licensing. Just in case ;)

https://gitlab.com/golemwire/subsky/-/tree/itemsys?ref_type=heads#licensing

#FoundationProject

I am going to start posting more about my projects.

#FoundationProject -- a project to rethink, rework, and rebuild the computer technology behind the scenes.

#SubSky -- A minimalist CPU architecture and computing environment. https://gitlab.com/golemwire/subsky

#Itemsys -- an object-capability model which defines how data and actions work.

#FoundationOS -- The OS of the Foundation project; Itemsys as an operating system. #OSDev

#BeingsOfIsness -- an action-adventure story game with fighting-game mechanics, in development for SubSky. #gameDev

Line counts for my videogame, so far. #gamedev #FGC #fightingGames #gaming #lowLevel

[Lines Words Chars]
117 371 2118 bobcolor1.0/bobcolor.s
23 63 798 bobfighter1.0/character.s
580 3898 25450 bobfighter1.0/fighter.s
808 5018 33125 bobfighter1.0/fighter:step.s
423 2700 19629 bobfighter1.0/fighter_change_state.s
180 1245 7962 bobfighter1.0/render.s
408 2572 15656 bobphysics1.0/body.s
59 348 1941 bobphysics1.0/render.s
499 2832 14905 bobphysics1.0/world.s
454 1305 8305 characters/Testman.s
203 1036 6313 ctrlr_overlay1.0/ctrlr_overlay.s
175 1595 7622 worlds/debug_world.s
389 1417 9142 BoI.s
217 1126 7364 controllers.s
43 103 513 ctrlr_mappings.s
123 566 4055 player.s
146 743 4238 screen.s
168 1062 6349 temp_horrid_ai.s
167 1056 6298 temp_horrid_ai_2.s
68 354 2427 bobfighter1.0/attack.h
64 548 3477 bobfighter1.0/character.h
222 1112 7335 bobfighter1.0/defaults.h
29 306 2004 bobfighter1.0/defaults_checks.h
223 2145 13788 bobfighter1.0/fighter.h
14 71 486 bobfighter1.0/render_defaults.h
43 155 1021 bobphysics1.0/body.h
50 258 1628 bobphysics1.0/render.h
24 109 661 bobphysics1.0/render_defaults.h
16 28 147 bobphysics1.0/sprite.h
99 363 2455 bobphysics1.0/world.h
17 47 264 ctrlr_overlay1.0/ctrlr_overlay.h
17 21 192 ctrlr_mapping.h
18 37 251 player.h
6086 34610 217919 total
It's being written for #SubSky.

Making 0x00 0x00 a no-op in my ISA was a mistake. I might want to adjust that before I get the #SubSky ISA out of beta.... #ISADesign #ISA