Commit Graph

41 Commits

Author SHA1 Message Date
Virgil Dupras
f09aa0603c rc2014: separate SPI relay and SDC drivers
My intention is to reuse the SPI relay to program AVR MCUs from a
RC2014.
2020-06-29 18:48:00 -04:00
Virgil Dupras
b8800be76f rc2014: improve SD card driver docs 2020-06-28 16:34:41 -04:00
Virgil Dupras
0703da928e rc2014: adapt recipe to single stage xcomp
It's now much easier...
2020-05-14 11:32:51 -04:00
Virgil Dupras
bd1e76ec5b Gather all RC2014 drivers into a single "RC2014 Recipe section" 2020-05-13 14:56:38 -04:00
Virgil Dupras
7c20501f27 Move core's blk to xcomp core (low and high)
TODO: implement X['] so that I can remove those XCURRENT patterns.
2020-05-13 10:50:46 -04:00
Virgil Dupras
6a5ff3adcb rc2014: unify SD Card driver
Now more low/high layers.
2020-05-12 21:48:29 -04:00
Virgil Dupras
f690cb2e5b recipes/rc2014/sdcard: use driver from blkfs
This completes the migration of all Collapse OS code into blkfs!
2020-04-26 19:50:38 -04:00
Virgil Dupras
6767012ebd recipe/rc2014/selfhost: new recipe 2020-04-25 19:24:55 -04:00
Virgil Dupras
98191d0b0d recipes/rc2014/sdcard: now works under Forth! 2020-04-19 16:56:37 -04:00
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
5b155a5c15 tools: use BASIC's new while loop
Also, increase STDIO_BUFSIZE to 0x40 so that those while loops work.
2019-12-12 12:04:56 -05:00
Virgil Dupras
880775ae69 recipes/rc2014/sdcard: use BASIC shell 2019-12-11 11:18:32 -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
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
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
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
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
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
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
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
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