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collapseos
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370 Commits

Author SHA1 Message Date
Virgil Dupras f404c2f4d0 forth: TIL forth source file extension is "fs" 2020-03-16 19:51:10 -04:00
Virgil Dupras c3838714d5 forth: improve execution model 
My approach with RS was slightly wrong: RS' TOP was always containing current
IP. It worked, but it was problematic when came the time to introduce
RS-modifying words: it's impossible to modify RS in a word without immediately
messing your flow.

Therefore, what used to be RS' TOS has to be a variable that isn't changed
midway by RS-modifying words. I guess that's why RS is called *return* stack...
 2020-03-13 16:01:09 -04:00
Virgil Dupras a8e573c84a forth: add bin dict compilation stage! 
Big one.

This allows us to write higher order words directly in Forth, which is much
more convenient than writing post-immediate (see "NOT" structure in diff if
you want to see what I mean) structures in ASM.

These structures can then be written to ROM (rather than loaded in RAM for
definitions loaded at run-time).

That's quite a bit of tooling that was added, 2 compilations stages, but I
think it's well worth it.
 2020-03-12 00:14:44 -04:00
Virgil Dupras abdf2c8adc emul/forth: allow running commands from file 2020-03-11 19:03:47 -04:00
Virgil Dupras e95614755b emul: add forth target 2020-03-09 22:26:02 -04:00
Virgil Dupras 49228e418c apps/forth: new (WIP) application 2020-03-07 12:13:15 -05:00
Virgil Dupras a442c46935 sms/vdp: highlight cursor with inverted palette 2020-02-26 09:43:50 -05:00
Virgil Dupras 247b200dcc New kernel module: grid 2020-02-24 20:36:08 -05:00
Virgil Dupras 6224ea2fe9 zasm: use printcrlf instead of hardcoded CRLF 2020-02-23 18:52:25 -05:00
Virgil Dupras 0f2b3aca24 zasm: allow zasm to omit its 3rd argument 
A bug in rdWS made zasm error out when omiting its 3rd argument.

fixes #90
 2020-02-18 15:46:55 -05:00
Virgil Dupras e1e0676191 emul/hw/sms: add A/B ports and a Genesis pad 
This makes the emulator suitable to run the base SMS recipe.
 2020-01-10 21:20:44 -05:00
Virgil Dupras b60252e330 emul/hw/(ti|sms): detect window being closed 
Previously, it would never get out of the event loop.
 2020-01-10 16:59:48 -05:00
Virgil Dupras 66744c0026 emul/hw/(ti|sms): fix compilation with gcc 
It seems to be picky about where it accepts its link flags.
 2020-01-09 08:36:29 -05:00
Virgil Dupras 6acd22492c emul/hw/sms: WIP 
VDP kinda works. Can see the Collapse OS prompt with SMS base recipe
if `STDIO_GETC` gets replaced with infinite loop (no input emul yet).
 2020-01-08 22:06:50 -05:00
Virgil Dupras c7ef8bf915 recipes: add "make emul" targets where appropriate 2020-01-02 16:59:38 -05:00
Virgil Dupras 9216057db8 emul/hw: add TI-84+ emulator 
I implement the screen using XCB which is much more friendly
than z80e's SDL+CMake for development machines that want to install
minimal dependencies (for example, a port-less OpenBSD rig).
 2020-01-01 22:48:01 -05:00
Virgil Dupras 25fc0a3c72 Add RC2014 classic emulation 2019-12-31 22:03:48 -05:00
Virgil Dupras 097c677641 emul/zasm: use libcfs 
This allows us to get rid of the zasm.sh wrapper.
 2019-12-31 15:07:39 -05:00
Virgil Dupras 4cde58fd83 cfspack: make into a library 
Use it in shell instead of using popen()
 2019-12-31 13:57:52 -05:00
Virgil Dupras 72357fec86 Move "emul" folder to root 2019-12-31 13:34:24 -05:00