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collapseos
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175 Commits

Author SHA1 Message Date
Virgil Dupras 5d4155aa32 Add words 1+ 2+ 1- 2- and consts 0 1 -1 
Saves quite a few bytes in the final binary.
 2020-04-15 21:29:39 -04:00
Virgil Dupras e1e634c815 boot: compaction 
It's more hassle than it seems to move the stable ABI...
 2020-04-15 20:57:46 -04:00
Virgil Dupras a56ace4d3e boot: optimize (br) 2020-04-15 20:03:56 -04:00
Virgil Dupras 0750e8d0c0 Use IY for IP instead of RAM+06 2020-04-15 17:01:15 -04:00
Virgil Dupras 2a84a426b4 Strip usages of IY register 2020-04-15 16:53:04 -04:00
Virgil Dupras 2b0186fd58 boot: make routine field 1b 
I forgot to do it earlier. NOP having an opcode of 0, it didn't have
any effect.
 2020-04-15 16:24:03 -04:00
Virgil Dupras d2ec5e271c Optimize boot binary's word execution code 
Should be significantly faster now. Less push/popping and usage of
DE instead of IY.
 2020-04-15 16:09:10 -04:00
Virgil Dupras d8de8a058a Make word routine refs 1b instead of 2 
Saves quite a bit of binary space. More than 300 bytes in forth1.bin
 2020-04-15 15:16:11 -04:00
Virgil Dupras e40c059c26 Make word routines all in the <0x100 range 2020-04-15 14:00:59 -04:00
Virgil Dupras 728e4ce123 Bring EXECUTE word outside of stable ABI 2020-04-15 13:36:28 -04:00
Virgil Dupras 2439f1ed86 Change SCMP for S= 
Remove flagsToBC boot routine.
 2020-04-15 12:19:58 -04:00
Virgil Dupras 16d5cd91de emul: don't segfault on quit when there is no blkfs 2020-04-15 10:56:49 -04:00
Virgil Dupras c40f336959 icore: extract "_pdacc" from "(parsed)" 
Makes boot binary a bit bigger, but that "_pdacc" word will be
reused in high level apps.
 2020-04-15 10:41:27 -04:00
Virgil Dupras 79acf92b28 emul: fix Makefile 2020-04-15 09:01:09 -04:00
Virgil Dupras aec19e5c87 Add word "LOAD" 2020-04-14 18:15:07 -04:00
Virgil Dupras a67101fb8b Add word "EMPTY" 2020-04-14 16:07:07 -04:00
Virgil Dupras b8dd86bd18 Move notes.txt in blk 2020-04-14 14:54:42 -04:00
Virgil Dupras f59cac0588 blk: first steps 2020-04-14 09:07:20 -04:00
Virgil Dupras d919a10265 Remove runbin 
It's not used
 2020-04-13 19:25:28 -04:00
Virgil Dupras d08a9711c5 boot: make HERE point to RAMEND instead of CURRENT 
The former was only used in the peculiar context of "/emul". The
regular case is actually HERE pointing to RAMEND on boot.
 2020-04-13 11:43:15 -04:00
Virgil Dupras d996dd8c9e Add one layer of indirection in subsystem memory management 
This allows optional subsystems to not needlessly reserve too much
system memory and it also reduces offsets bookkeeping.
 2020-04-12 20:42:00 -04:00
Virgil Dupras c515720e23 Revert "Remove link.fs" 
Let's revisit the relinking approach, with LITA this time.
This reverts commit 6652125d47.
 2020-04-11 13:31:17 -04:00
Virgil Dupras af3db1c3cf Add word "LITA" 2020-04-11 13:13:20 -04:00
Virgil Dupras 3822182226 xcomp: shrink scope 
It seems that xcomp can't manage to reliably compile core+ units.
Let's limit the role of xcomp to z80c+icore.

I'm getting a little desperate here. I'll revisit the link.fs approach
with a new idea I had...
 2020-04-11 11:38:45 -04:00
Virgil Dupras 6368cc3bac Remove (sysv) 
Replace its usages with direct RAM+ offsets. The (sysv) mechanism was
incompatible with cross-compilation of a full interpreter.
 2020-04-10 14:57:00 -04:00
Virgil Dupras a6efb65010 emul: extract capture mark from icore into xstop.fs 2020-04-10 14:16:45 -04:00
Virgil Dupras f62376bd0a boot: remove _bend 
It's not needed anymore now that the boot binary is built in one pass.
 2020-04-10 09:59:45 -04:00
Virgil Dupras 7aa1be070b emul: build boot binary in one pass 
... instead of building boot.fs, and then z80c.fs/icore.fs in separate
passes. This strengten xcomp by making it support 2 completely separate
dicts (that is, the X dict is *not* connected to the system dict. The chain
now stops at EXIT def in boot.fs).
 2020-04-10 09:55:58 -04:00
Virgil Dupras c8c337fd58 xcomp: widen scope 
We can now cross-compile core.fs.
 2020-04-10 07:53:41 -04:00
Virgil Dupras e6d3638f4f Add CURRENT* and simplify xcomp 2020-04-09 12:01:08 -04:00
Virgil Dupras 1b6286dcfe Make (find) 2-layered, the lower layer having CURRENT as a param 2020-04-09 11:20:54 -04:00
Virgil Dupras 66dc621919 xcomp: don't automatically shadow core words 2020-04-09 09:43:48 -04:00
Virgil Dupras 0c3067ed9a icore: simplify definition of ":" and ";" 2020-04-09 09:38:59 -04:00
Virgil Dupras 784b109652 So, why was ":" an immediate again? 2020-04-09 09:27:51 -04:00
Virgil Dupras afed423530 Remove memory maps 
It was a dead end. my new tentative solution is xcomp.
 2020-04-09 09:21:55 -04:00
Virgil Dupras b69ca4488e Add emul_memdump() and stop automatically on ROM write 2020-04-09 08:26:41 -04:00
Virgil Dupras 68f359d6c2 Add xcomp unit for cross compilation 
Memory mapping is a dead end too, solution has to be at a higher
level. xcomp is my new approach.
 2020-04-09 08:23:53 -04:00
Virgil Dupras 2a2e3a64a4 Move IMMED? from z80c to icore 2020-04-08 20:09:32 -04:00
Virgil Dupras a7a2f3d08b Move IMMEDIATE from z80c to core 
This makes IMMEDIATE affected by memory mappings.
 2020-04-08 19:43:44 -04:00
Virgil Dupras 64e441d059 Move SCPY from z80c to icore 
This way, it can be affected by memory mappers.
 2020-04-08 16:12:34 -04:00
Virgil Dupras 6652125d47 Remove link.fs 
This was a dead end.
 2020-04-07 21:23:42 -04:00
Virgil Dupras ba918d0fef Add memory maps 2020-04-07 20:54:10 -04:00
Virgil Dupras d4324292fb Merge remote-tracking branch 'origin/master' into forth 2020-04-07 19:32:30 -04:00
Byron A. Grobe 217df20d77
Moved tools/bin2c to single-level with other tools. 2020-04-07 16:56:55 -05:00
Virgil Dupras 521ff84ca4 Reserve some RAM for future features 2020-04-07 17:32:04 -04:00
Virgil Dupras 71d1350143 emul/hw/rc2014: add memdump command 
Why didn't I think of adding it before?
 2020-04-07 13:37:52 -04:00
Virgil Dupras 400f0ab0b0 boot: fix flagsToBC 
Why did I ever think that using CM was a good idea? any comparison
with numbers more than 0x8000 apart would be wrong...
 2020-04-07 11:26:37 -04:00
Virgil Dupras 1c6e979028 link: new unit to relink dictionaries 
Not quite functional yet, but works in toy situations. The goal is to
concatenate RC2014's bootstrapped dict to the boot binary.
 2020-04-06 20:59:55 -04:00
Virgil Dupras 974018831e Add chained comparison support 2020-04-05 16:11:17 -04:00
Byron A. Grobe f65c189e9b
Replace bin2c.sh with a more portable implementation. 
`xxd' is not available on all systems, and on others does not support
the `-i' flag. Since bin2c.sh relied on a tool that I can't seem to find
a compatible version of, I have included a simple, portable replacement in C.

Usage remains the same:
bin2c ARRAYNAME < inputfile > outputfile.

This change is also reflected in emul/Makefile.
 2020-04-05 13:04:05 -05:00