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122 Commits

Author SHA1 Message Date
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
Virgil Dupras
e3eea8839b recipes/rc2014/ps2: works rather well now! 2019-06-30 14:16:00 -04:00
Virgil Dupras
2c6ab08d51 recipes/rc2014/ps2: add "resend" requests on parity check failures 2019-06-30 11:17:12 -04:00
Virgil Dupras
0f82ebe02d recipes/rc2014/ps2: add parity checks 
Also, add timer to reset reception status after 100us.
 2019-06-29 20:45:08 -04:00
Virgil Dupras
360446e731 recipes/rc2014/ps2: don't alter SREG in hdlPCINT 2019-06-29 15:47:02 -04:00
Virgil Dupras
e44ebb08b2 recipes/rc2014/ps2: drive a shell with ps/2 kbd! 2019-06-29 14:26:03 -04:00
Virgil Dupras
3cdb25bfda recipes/rc2014/ps2: implement scan code buffer 2019-06-29 11:18:37 -04:00
Virgil Dupras
20a7ad231f recipes/rc2014/pc2: new recipe (WIP) 2019-06-28 22:54:57 -04:00
Virgil Dupras
6df77ddef3 recipes/rc2014/zasm: we can now assemble the recipe's kernel 2019-06-18 22:07:44 -04:00
Virgil Dupras
0a36ea0815 recipes/rc2014/zasm: add unpack + verification 2019-06-17 15:35:14 -04:00
Virgil Dupras
95b658897a recipes/rc2014/zasm: add instructions to assemble kernel 2019-06-17 14:19:49 -04:00
Virgil Dupras
3e437747c2 recipes/rc2014: add missing calls to fsInit 
Also, tighten RAM addresses. They were unecessarily loose.
 2019-06-17 13:46:33 -04:00
Virgil Dupras
92a04f4627 sdc: support 24-bit addressing 
Needed if we want to compile the kernel and zasm from within a SD card.
I didn't go straight for 32-bit because it was significantly more
complex and 24-bit give us 16M. Enough to go on for a while...
 2019-06-15 13:41:20 -04:00
Virgil Dupras
e7c07cdd9a apps/at28w: fix argument byte order 2019-06-14 21:11:45 -04:00
Virgil Dupras
c613f7b0ee recipes/rc2014/eeprom: fix broken a28w args passing 
That's why the command seemed slow! It's much faster than I thought.
 2019-06-14 16:30:01 -04:00
Virgil Dupras
817636242a Add at28w app and recipe 
This allows us to write to an AT28 EEPROM from within collapse os.
 2019-06-14 14:15:30 -04:00
Virgil Dupras
145b48efb7 Add apps/sdct 
A new app to stress test the SD card driver. Also, accompanying this
commit, changes solidifying the SD card driver so that stress tests
actually pass :)
 2019-06-10 15:54:15 -04:00
Virgil Dupras
9bb2194fb0 recipes/rc2014/zasm: zasm can now assemble *and* write to file 2019-06-07 19:53:50 -04:00
Virgil Dupras
e046081900 sdc: add second buffer 2019-06-06 22:16:57 -04:00
Virgil Dupras
ae028e3a86 blockdev: make implementors "random access" 
This huge refactoring remove the Seek and Tell routine from blockdev
implementation requirements and change GetC and PutC's API so that they
take an address to read and write (through HL/DE) at each call.

The "PTR" approach in blockdev implementation was very redundant from
device to device and it made more sense to generalize. It's possible
that future device aren't "random access", but we'll be able to add more
device types later.

Another important change in this commit is that the "blockdev handle" is
now opaque. Previously, consumers of the API would happily call routines
directly from one of the 4 offsets. We can't do that any more. This
makes the API more solid for future improvements.

This change forced me to change a lot of things in fs, but overall,
things are now simpler. No more `FS_PTR`: the "device handle" now holds
the active pointer.

Lots, lots of changes, but it also feels a lot cleaner and solid.
 2019-06-04 15:36:20 -04:00
Virgil Dupras
63473cc2e3 blockdev: make selection structure opaque 
I'm about to change that structure and I don't want fs to be messed up
by this. I'm proceeding step by step...
 2019-06-04 09:56:36 -04:00
Virgil Dupras
50a26f6e39 recipe/rc2014/zasm: new recipe 2019-06-03 13:35:21 -04:00
Virgil Dupras
9a72f10221 zasm: includes CFS is now built on-the-fly by zasm.sh 
This makes for a much more usable zasm linux binary that doesn't have to
be rebuilt every time apps or kernel change.
 2019-06-02 19:57:40 -04:00
Virgil Dupras
22e990ed89 Parametrize zasm linux bin's include CFS file 
... instead of embedding it in the binary itself. Additionally, add a
"zasm.sh" wrapper to faciliate zasm calls on a linux machine.
 2019-06-02 15:50:59 -04:00
Virgil Dupras
57356e47b4 recipes/rc2014/sdcard: add instructions to write to SD card 2019-06-02 12:04:11 -04:00
Virgil Dupras
73c3fc7947 shell/stdio: decouple from blkdev (again) 
Move load/save to blkdev_cmds and add a new "poke" builtin shell cmd
that is the mirror of "peek" and strictly uses stdio (no blkdev
involved).

This allows us to slim the minimal OS size but, more importantly, change
the behavior of "load" so that we don't expect GetC to block until Z is
set. This way, using "load X" with X being larger than the blkdev size
won't block forever.

This also brings our RC2014 minimal kernel below the 1K mark again.
 2019-06-02 11:06:38 -04:00
Virgil Dupras
88bf98321e fs: adjust to DE->IX change in recipe/emul glue code 2019-06-02 10:18:03 -04:00
Virgil Dupras
5e5c7e6592 sdc: add sdcPutC 
Wriiiiiite!
 2019-06-01 19:53:42 -04:00
Virgil Dupras
2e8af376e3 pgm: new kernel module 
The pgm module implements a shell hook so that when an unknown command
is typed, we look into the mounted filesystem and look for a file with
the same name as the command. If we find one, we load it in memory and
run it.
 2019-05-31 14:54:15 -04:00
Virgil Dupras
6b1679c811 recipes/rc2014/sdcard: mount filesystem! 2019-05-28 13:13:34 -04:00
Virgil Dupras
8cfe834edb recipes/rc2014/sdcard: use "sdci" and blockdev rather than user prog 2019-05-28 11:01:17 -04:00
Virgil Dupras
ed19c6afc1 Use zasm in recipes 2019-05-20 11:00:14 -04:00
Virgil Dupras
013a3b74c8 Add the concept of unit tests 
Will be much much easier to tests new core routines without having to
re-create their context first.

Also, extract parse.asm from core.asm
 2019-05-17 09:33:20 -04:00
Virgil Dupras
45b8e84e2a shell: de-macro-ize 2019-05-17 08:21:37 -04:00
Virgil Dupras
56760b5aba stdio: de-macro-ize 2019-05-17 08:14:19 -04:00
Virgil Dupras
34ee91a0d7 zasm: use blkdev IDs as input and output 
This will soon allow use to seek and tell on input, which is necessary
for a second pass which is necessary for forward symbol references.

This require making `blkSel` a bit more flexible. Rather than having one
global selected blkdev, each app can select its own, in its own memory
space.
 2019-05-10 19:33:34 -04:00
Virgil Dupras
d8bc9c2bdd parts/z80/sdc: implement blockdev's GetC 2019-05-09 10:47:57 -04:00
Virgil Dupras
54d0286486 parts/z80/sdc: add sdcSetBlkSize and sdcReadBlk 2019-05-08 20:08:17 -04:00
Virgil Dupras
12ca2bd53e parts/z80/sdc: add sdcInitialize 
Also, adjust SD card recipe. Straightforward initialization and read!
 2019-05-08 16:03:54 -04:00
Virgil Dupras
3d82d7fb30 recipe/rc2014/sdcard: we read data! 2019-05-07 17:28:07 -04:00
Virgil Dupras
beeb40eb93 recipe/rc2014/sdcard: we got out of initialization! 2019-05-07 16:38:08 -04:00
Virgil Dupras
c9f164a510 recipe/rc2014/sdcard: Make sdinit program output readable text 
Makes for a more straightforward test.
 2019-05-07 16:20:28 -04:00
Virgil Dupras
e80888555f recipe/rc2014/sdcard: new recipe 2019-05-07 15:47:49 -04:00
Virgil Dupras
055e0d7a31 Split parts in two: z80 and avr 
Also, clarify the role of recipes.
 2019-04-25 16:03:45 -04:00
Virgil Dupras
ff99062d5b Move RC2014 recipe in its own folder 
Also, remove `parts/platforms`. It makes no sense. Only recipes make
sense.
 2019-04-16 11:50:16 -04:00
Virgil Dupras
461c09f1e5 Decouple shell from acia 2019-04-14 14:24:29 -04:00
Virgil Dupras
21168f6c4e shell: implement seek and peek 
This introduces `core.asm` which includes routines used by other parts.
 2019-04-14 11:17:38 -04:00
Virgil Dupras
6bb454232a Extract "acia.asm" from shell 
Also, come up with a way to make parts play well together memory-wise.
 2019-04-13 16:01:20 -04:00
Virgil Dupras
89e4edfa52 Add parts/platforms 2019-04-12 15:53:05 -04:00
Virgil Dupras
7bf3e2f71e Let's get the ball rolling! 2019-04-12 15:16:12 -04:00