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160 Commits

Author SHA1 Message Date
Virgil Dupras
91f79d1131 Move z80a from B200 to B5 
The idea is to consider assemblers as "runtime" apps instead of
placing them in the "bootstrap" section of the blocks. These apps
will be used for much more than bootstrapping.

Moved its documentation to doc/asm.txt and made its code blocks
more compact.
 2020-09-21 17:51:08 -04:00
Virgil Dupras
97ec2569a0 recipes/rc2014: move recipe blocks into local overlay 2020-09-20 10:50:13 -04:00
Virgil Dupras
495d2819d2 recipes/rc2014/sdcard: make spi relay design multi-devices 
Also, fix the SPI relay driver to properly AND-away the result of
the CTL read.

Tested with a real prototype, works fine.
 2020-09-18 19:22:56 -04:00
Virgil Dupras
7dc00179f7 tools/upload: use A! instead of C! to write 
By default, it changes nothing, but it allows interesting
setups, such as using AT28! for directly uploading to EEPROM.

I've also updated the EEPROM recipe to upload directly to 0x2000.
I'm not sure what has changed, but it's working fine now.
 2020-09-17 13:30:29 -04:00
Virgil Dupras
1a6a549857 Make the SPI Relay protocol support multiple devices 
Working on programming AVR chips exposes a glaring omission in my
first design of the SPI Relay: not allowing multiple devices make
this task hard. I constantly have to unplug my SD card before, plug
the AVR chip holder, then play a bit, then unplug the AVR holder,
then replug the SD card...

My prototype for a SPI relay design is built, but I haven't tested
it yet. I need to adapt the code first, which is what I do here.

When the prototype is tested, I'll update the SDC recipe with a new
schema.
 2020-09-17 09:48:55 -04:00
Virgil Dupras
9c36885503 Fix doc innacuracies 2020-08-30 16:53:27 -04:00
Virgil Dupras
46676547d9 spi: add SPI_DELAY decl 
AVR chips often run at less than z80's system clock. This means that
our SPI relay needs to have its own clock to properly communicate
with it. This means that the delay between OUT and IN can't be
hardcoded to 2 NOPs anymore. It needs to be configurable.
 2020-08-23 07:55:17 -04:00
Virgil Dupras
11f8843a16 rc2014: add sio recipe 2020-08-18 16:02:47 -04:00
Virgil Dupras
8788379aac Flatten recipes 2020-08-18 15:46:14 -04:00
Virgil Dupras
6d2a0f749a recipes/rc2014: fix out-of-date information 2020-08-16 20:54:06 -04:00
Virgil Dupras
124da6adec Move SD Card subsystem outside of RC2014 recipe and add protocols 
Although the SPI Relay driver is RC2014-specific, the SD Card driver
is generic enough to be a subsystem. That's the second subsystem we
add and this warrants, I think, the formalization of a new concept:
protocols.
 2020-08-16 14:30:33 -04:00
Virgil Dupras
007252e459 Move SIO driver into RC2014 recipe 2020-08-16 09:31:02 -04:00
Virgil Dupras
d97012ecae Fix makefile build-from-clean-repo glitches 2020-06-30 10:24:12 -04:00
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
3068b58be5 Rename RAMSTART to SYSVARS 
It's more descriptive this way. Also, I'll soon add a new HERESTART
config.
 2020-06-28 18:49:30 -04:00
Virgil Dupras
b8800be76f rc2014: improve SD card driver docs 2020-06-28 16:34:41 -04:00
Virgil Dupras
b3e865d0fb recipes: use cvm's staging binary instead of emul's 
Much faster!
 2020-06-26 21:23:13 -04:00
Virgil Dupras
394f962510 recipe: fix makefiles for fresh clone contexts 
All recipe makesfiles would previously assume a built emul/.

Fixes #113
 2020-06-11 12:23:59 -04:00
Virgil Dupras
a2136e604d rc2014/eeprom: adjust instructions 
Now that adev is directly in core, things are easier.
 2020-05-22 20:35:01 -04:00
Virgil Dupras
986249cf5e rc2014: fix misinformation in README 2020-05-22 14:19:02 -04:00
Virgil Dupras
b06cf09754 rc2014/ps2: update recipe to Forth's Collapse OS 2020-05-21 09:09:13 -04:00
Virgil Dupras
b606dbf9af rc2014: move xcomp unit's contents to blkfs 2020-05-14 12:29:34 -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
5446afd87d emul: rename stage2 to stage 2020-05-14 10:55:39 -04:00
Virgil Dupras
e6bac985fa Cross-compiles in a single stage! 
Finally got rid of the XPACKed core and managed to cross-compile
all core words, which greatly simplifies the bootstrapping process.
 2020-05-14 10:17:38 -04:00
Virgil Dupras
40a756cf1c Move a bunch of words from XPACKed core to xcomp core 2020-05-14 08:18:53 -04:00
Virgil Dupras
51997533ff Move a bunch of words from XPACKed core to xcomp core 2020-05-14 07:58:55 -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
bb77cd0759 xcomp: add overrides into a loadable block 
Makes xcomp.fs units shorter.
 2020-05-13 13:33:24 -04:00
Virgil Dupras
0434d02818 xcomp: implement X['] 2020-05-13 13:24:58 -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
029df00ad4 Free some space for xcomp core 2020-05-13 09:11:57 -04:00
Virgil Dupras
d6a3e79394 Free some space for xcomp core low 2020-05-13 08:00:49 -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
cbf5baf3b6 Pack core words a bit 
This leaves space for xcomp-core which is growing.
 2020-05-12 21:27:06 -04:00
Virgil Dupras
dfe474ca0e xcomp: add XCOMPILE and X[COMPILE] 
This allows us to move words like ABORT" to xcomp-core, which is
I think the last roadblock before being able to unify all drivers
into a single xcomp layer.
 2020-05-12 21:08:18 -04:00
Virgil Dupras
6beb082e29 acia: make wholly cross compilable 2020-05-11 21:52:44 -04:00
Virgil Dupras
da371451cc Replace INITIAL_SP with PS_ADDR conf 
Now I struggle to remember why I ever did things they way I did.
There must have been a reason...
 2020-05-11 21:08:24 -04:00
Virgil Dupras
afc2327770 Split icore in 2 parts 
The goal is to insert device drivers in between.
 2020-05-08 21:47:03 -04:00
Virgil Dupras
31119c2de3 xcomp: move all offset spitting to the end of the unit 
I'd like to move this code, along with all recipe contents, to blk/.
It's easier if "emul-related" code is gathered at the same place.
 2020-05-05 20:10:04 -04:00
Virgil Dupras
f023f9bcb4 Pack core words blks a bit tighter 
With all this recent movements, we had a bit of a fragmentation
issue.
 2020-05-02 21:47:32 -04:00
Virgil Dupras
931c812394 Remove cmp 
Not worth the complexity and space.
 2020-05-02 19:57:56 -04:00
Virgil Dupras
0044011f06 Move AT28 and TRS80 drivers to higher blocknos 
I'm reserving the 100-200 range for non-bootstrapping needs.
 2020-04-29 21:04:10 -04:00
Virgil Dupras
61b2e02351 xcomp: remove XOFF and use ORG and BIN( instead 2020-04-28 09:37:00 -04:00
Virgil Dupras
ee79df225e typo 2020-04-27 09:44:37 -04:00
Virgil Dupras
efed0e249e recipes/rc2014/selfhost: add verification instructions 2020-04-27 09:24:40 -04:00
Virgil Dupras
6c51ea1ebb recipes/rc2014/selfhost: complete instructions 
I have yet to test the whole process on real hardware. Soon.
 2020-04-26 20:20:36 -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
865f4f9256 Move AT28 driver to blkfs 
And adjust rc2014/eeprom recipe
 2020-04-26 15:18:28 -04:00
Virgil Dupras
7c692c1111 recipes/rc2014: include readln directly in stage 1 
XPACK is more efficient than stripfc was, we can pack more stuff in 8K.
We now have enough space to fit readln.
 2020-04-26 14:52:55 -04:00