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collapseos
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99 Commits

Author SHA1 Message Date
Virgil Dupras 25d25d017c Replace old shell with BASIC shell 
fixes #80
 2019-12-11 14:05:34 -05:00
Virgil Dupras 20151a97f8 recipes/rc2014/zasm: use BASIC shell 
Also made Makefile actually portable.
 2019-12-11 13:01:51 -05:00
Virgil Dupras 880775ae69 recipes/rc2014/sdcard: use BASIC shell 2019-12-11 11:18:32 -05:00
Virgil Dupras fb93fcd6e6 recipes/rc2014/eeprom: add usr.asm 
A little life saver if your target shell doesn't have a proper at28w.
 2019-12-09 21:03:31 -05:00
Virgil Dupras b9292eb8d0 recipes/rc2014/ps2: Use BASIC shell 2019-12-06 20:00:29 -05:00
Virgil Dupras 08392fee60 recipes/rc2014/eeprom: use BASIC shell 2019-12-02 23:00:35 -05:00
Virgil Dupras 0fb7995166 recipes/sms/romasm: add missing sentinel in .mycmds 2019-12-02 23:00:03 -05:00
Virgil Dupras 270ad926c9 recipes/sms: use BASIC shell 2019-12-02 20:18:41 -05:00
Virgil Dupras 15e44ec524 doc: add TI83+/TI84+ doc page 2019-12-02 13:51:36 -05:00
Virgil Dupras 10864afa96 recipes/ti84: use the BASIC shell 2019-12-01 20:11:13 -05:00
Virgil Dupras aad8efeff7 recipes/rc2014/basic: new recipe 2019-11-23 21:22:31 -05:00
Virgil Dupras 019d05f64c Make the shell a userspace app 
That's my mega-commit you've all been waiting for.

The code for the shell share more routines with userspace apps than with kernel
units, because, well, its behavior is that of a userspace app, not a device
driver.

This created a weird situation with libraries and jump tables. Some routine
belonging to the `kernel/` directory felt weird there.

And then comes `apps/basic`, which will likely share even more code with the
shell. I was seeing myself creating huge jump tables to reuse code from the
shell. It didn't feel right.

Moreover, we'll probably want basic-like apps to optionnally replace the shell.

So here I am with this huge change in the project structure. I didn't test all
recipes on hardware yet, I will do later. I might have broken some...

But now, the structure feels better and the line between what belongs to
`kernel` and what belongs to `apps` feels clearer.
 2019-11-15 15:37:49 -05:00
Virgil Dupras cdd0b64570 Modify userspace .org and RAMSTART expectations 
Instead of expecting a `USER_CODE` symbol to be set, we expect `.org` to be
set in all userspace glue code. This gives us more flexibility with regards to
how we manage that.

Moreover, instead of making `USER_RAMSTART` mandatory, we make it default to
the end of the binary, which is adequate in a majority of cases.

Will be useful for my upcoming mega-commit... :)
 2019-11-15 10:33:13 -05:00
Virgil Dupras 7cf3ed38da Extract str.asm from core.asm and make core included by userspace 
Most of register fiddling routines (which is now the only thing contained
in care.asm) are used by almost all userspace apps, often in inner loops.

That makes the penalty of using jump tables for those a bit too high.
Moreover, it burdens jump tables needlessly.

Because this unit is very small (now that string routines are out), it makes
sense to always include it in binaries.
 2019-11-14 10:14:15 -05:00
Virgil Dupras 7274dccbe7 Move ASCII consts to ascii.h 
And made them shorter in name. The new ascii.h file allow reuse in userspace
code.
 2019-11-13 20:38:06 -05:00
Virgil Dupras 39f3637c60 recipes/ti84: TI-84+ base recipe is complete! 
ref #41
 2019-11-12 20:32:56 -05:00
Virgil Dupras 17cc28e211 recipes/ti84: use a 3x5 font instead of a 5x7 one 
This allow a lot more characters to fit on that tiny screen...

ref #41
 2019-11-11 13:26:24 -05:00
Virgil Dupras a4190f9984 recipes/ti84: document usage 
ref #41
 2019-11-09 14:20:01 -05:00
Virgil Dupras c896b77143 ti/kbd: implement A-Lock 
ref #41
 2019-11-08 20:27:43 -05:00
Virgil Dupras dca6ce4e8e ti/kbd: begin GetC implementation 
For now, only digits are scanned. Lifted from my "tiseg7" example.

ref #41
 2019-11-08 14:04:56 -05:00
Virgil Dupras fda9c9826e ti/lcd: add linefeed support 
There's no scrolling yet...

ref #41
 2019-11-07 20:53:15 -05:00
Virgil Dupras f4871d4d58 recipes/ti84: add upload instructions 
ref #41
 2019-11-07 13:42:40 -05:00
Virgil Dupras ca84b5dac8 recipes/ti84: first step 
This was mostly lifted from my "tihello" example, but it required significant
adjustments.

This commit also introduces a font management system. A lot of fonts are
available online, but sources aren't always clear so to avoid copyright
landmines, I re-created my first 5x7 font from scratch.

As it is now, this resulting ROM gets "Collapse OS>" to be displayed on the
LCD screen. Much work still left to do.

ref #41
 2019-11-07 11:52:29 -05:00
Virgil Dupras 69daf49920 doc: fix mis-wording 2019-11-05 17:59:29 -05:00
Virgil Dupras 9344c4b961 doc: minor improvements 2019-11-04 14:45:10 -05:00
Virgil Dupras 2a55bfd375 stdio: remove a layer of indirection in GetC/PutC 
We use zasm's ability to use labels in .equ directive.

We didn't do it before because for a while, we were in between scas
and zasm (scas was used in automated tests) so we needed to use the
lowest common denominator: zasm doesn't have macros and scas can't
use labels in .equ directives.

This forced us to add this layer of indirection. But now that we are
completely cut from scas' dependency, we can use this nice zasm's
ability.
 2019-11-04 09:55:12 -05:00
Virgil Dupras 16bf8e28c0 Remove SHELL_LOOPHOOK 
It was a bad idea and having sms/pad interact directly with sms/vdp
is much simpler.

ref #64
 2019-11-03 19:13:01 -05:00
Virgil Dupras 20c0ba3dd0 Clarify recipes structure 
Drop the "{pre,post}-collapse" thing and specify that the rc2014 recipes
are canonical.
 2019-11-03 16:09:11 -05:00
Virgil Dupras b745f49186 Rename blockdev's API routines to GetB/PutB 
The goal is to avoid mixing those routines with "character devices"
(acia, vpd, kbd) which aren't block devices and have routines that
have different expectations.

This is a first step to fixing #64.
 2019-10-30 16:59:35 -04:00
luz.paz 6a635fddd9 Fix misc. source comment typos 
Found via `codespell -q 3 -S ./tools -L splitted`
 2019-10-09 11:12:08 -04:00
Virgil Dupras f4b6c7637d zasm: rename #inc to .inc 
scas, it's not needed any more.
 2019-10-06 14:32:23 -04:00
Virgil Dupras c839703682 recipes/sms/romasm: ed and zasm, fully functional! 2019-07-25 14:24:18 -04:00
Virgil Dupras 13028d431e recipes/sms/romasm: limit mmap size 
Otherwise, we overflow into the RAM mirror, which means we
overwrite the beginning of the RAM.
 2019-07-23 23:01:17 -04:00
Virgil Dupras 1c6a7caeae recipes/sms/romasm: make zasm's memory usage fit the SMS 2019-07-23 16:50:19 -04:00
Virgil Dupras af0b6231ca recipes/sms/romasm: make ed's memory usage fit the SMS 
Yup, that's ultimately why I've just made this whole big zasm
refactoring in the previous commits. To allow for this.

But also, zasm is in much better shape now...
 2019-07-23 16:13:52 -04:00
Virgil Dupras ffa28195b1 recipes/sms/romasm: adjust glue to zasm changes 
Forward reference of SHELL_MEM_PTR wasn't working (nor should it
have been...).
 2019-07-23 15:42:52 -04:00
Virgil Dupras 87d794d426 recipes/sms/romasm: adjust ed/zasm offsets 2019-07-22 10:11:59 -04:00
Virgil Dupras 77d805ea0f shell: allow cmds to be shorter than 4 chars 2019-07-21 15:57:55 -04:00
Virgil Dupras 70a42e8c4d recipes/sms/romasm: first steps 2019-07-21 15:37:03 -04:00
Virgil Dupras 0c0db41477 recipes/sms/kbd: add schematic 2019-07-20 14:51:34 -04:00
Virgil Dupras 57e7b3ca05 recipes/sms/kbd: PS/2 keyboard adapter for the SMS! 2019-07-20 12:42:55 -04:00
Virgil Dupras 8cc5bbb110 recipes/sms: update README 2019-07-02 16:31:58 -04:00
Virgil Dupras dd84c11905 recipes/sms: Add pad-oriented character selection 2019-07-02 13:15:24 -04:00
Virgil Dupras bd003829e8 recipes/sms: plug shell in! 
Now this is getting eminently exciting!
 2019-07-02 11:14:30 -04:00
Virgil Dupras 767db17252 recipes/sms: hitting a button now adds a char on the screen 2019-07-02 10:49:30 -04:00
Virgil Dupras 9eb80d5eac sms/pad: new module to manage Megadrive controller in SMS 2019-07-02 09:02:19 -04:00
Virgil Dupras ca5bc07a75 recipes/sms: show all letters in font when Start is pressed 2019-07-01 16:15:46 -04:00
Virgil Dupras ba2804a255 recipes/sms: add controller support 2019-07-01 15:46:10 -04:00
Virgil Dupras 95fa473641 recipes/sms: New section for Sega Master System 2019-07-01 11:05:25 -04:00
Virgil Dupras 2efe887434 recipes/rc2014/ps2: add schema 2019-06-30 17:37:18 -04:00