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Author SHA1 Message Date
Virgil Dupras
f3c92684a0 link: improve reliability by never relinking last word 
It's not possible to reliably determine its end and with some memory
initialization scenarios, it makes RLDICT fail.
 2020-04-18 16:51:48 -04:00
Virgil Dupras
052c744000 drv/sdc: implement "SDC@" 
I can read a block from blkfs in RC2014 emulator. It even checks
CRC16 successfully!
 2020-04-18 14:22:26 -04:00
Virgil Dupras
c64a8a2e2b drv/sdc: new unit to drive SD card through SPI relay 
Goes through initialization in RC2014 emulator.
 2020-04-18 11:11:11 -04:00
Virgil Dupras
b062a9092a parse: use "0<" instead of "0 <" 
As I wrote in my "Clarify signed-ness" commit, "0 <" is broken.

Also, made this unit a bit more compact. The RC2014 stage1 can
really use some breathing room...
 2020-04-18 09:18:09 -04:00
Virgil Dupras
66f65daa08 Add word LEAVE 2020-04-18 08:37:57 -04:00
Virgil Dupras
19d94dfb47 recipes/rc2014: stage1 is too big! saving some space 
stripfc requires 2 spaces before "(" to strip a comment. This was
a low hanging fruit for me to get stage1.bin under the 8K line.

That thing is getting tight...
 2020-04-17 21:10:48 -04:00
Virgil Dupras
287213fc68 recipes/rc2014/eeprom: remove old stuff 2020-04-17 21:10:20 -04:00
Virgil Dupras
82044454d5 Merge branch 'master' into forth 2020-04-17 20:39:08 -04:00
Virgil Dupras
9c41744e46 emul/hw/rc2014: implement blk write in sdc 
All of that should help me implement sdc support much faster in
Forth.
 2020-04-17 20:19:55 -04:00
Virgil Dupras
7544b3834b emul/hw/rc2014: implement blkread in sdc 
I now get to "fls" in recipes/rc2014/sdcard!
 2020-04-17 19:10:22 -04:00
Virgil Dupras
ae470397d7 emul/hw/rc2014: add sdc emulator (wip) 
so far, it goes through initialization with the rc2014/sdcard recipe.
 2020-04-17 15:11:32 -04:00
Virgil Dupras
2cadae260d editor: add "U" word 2020-04-17 07:51:59 -04:00
Virgil Dupras
9edab10a3a blk: add dirty flag and auto write blocks on fetch 
Also, fix some PSP leaks related to LOAD.
 2020-04-16 20:59:20 -04:00
Virgil Dupras
79ce88c12c tools: add blkunpack 
and remove cfspack, which will not ever be used again.
 2020-04-16 19:44:17 -04:00
Virgil Dupras
5cb4a7de9a Add word "C@+" 2020-04-16 18:58:11 -04:00
Virgil Dupras
eefa8e6de5 Add word "BLK!" 
as well as emulator support for it. We can now write an edited
block back to "blkfs".
 2020-04-16 17:22:18 -04:00
Virgil Dupras
57e20f0532 Block explorer upgraded to block editor! 2020-04-16 15:59:43 -04:00
Virgil Dupras
5067d40e3b Add CASE..OF words 2020-04-16 15:07:31 -04:00
Virgil Dupras
733aff7b7a rc2014: adjust bootstrapping instructions 2020-04-16 09:27:49 -04:00
Virgil Dupras
65bc3b73ad link: adjust (br) and (?br) hardcoded offsets 
They changed in my earlier commit.
 2020-04-16 09:26:01 -04:00
Virgil Dupras
b01de82fd1 drv/acia: latest bells and whistles 2020-04-16 08:18:55 -04:00
Virgil Dupras
4eca827d36 First function application: Block explorer! 2020-04-15 22:39:14 -04:00
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
f6727f8e34 boot: use CODE where possible 
Now that we use xcomp unit, boot entry creation can be a bit
cleaner.
 2020-04-15 20:17:28 -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
6884c5cbe3 boot: use 3 labels instead of 4 2020-04-15 16:13:10 -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
22f132094a Clarify signed-ness 
And fix broken negative display in ".".
 2020-04-15 12:29:47 -04:00
Virgil Dupras
b73e1a5f7a z80a: invert the meaning of IFZ, IFNZ, IFC, IFNC, 
It is much less confusing when "IFZ," means "If Z is set, continue
into IF, else, jump to THEN,".
 2020-04-15 12:20:09 -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
415bd7a169 Support nested LOAD 2020-04-14 21:04:07 -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
add3b6629b Make DO .. LOOP binary code more compact 
Only a few bytes saved in forth1.bin, but the DO .. LOOP construct
isn't used much yet. It's still significant savings per LOOP call.
 2020-04-14 14:59:01 -04:00
Virgil Dupras
b8dd86bd18 Move notes.txt in blk 2020-04-14 14:54:42 -04:00
Virgil Dupras
1efb2821e3 Make usage and dictionary documentation in-system 2020-04-14 10:04:09 -04:00
Virgil Dupras
f59cac0588 blk: first steps 2020-04-14 09:07:20 -04:00
Virgil Dupras
d4cdb659b4 tools: add blkpack 2020-04-13 22:05:03 -04:00
Virgil Dupras
7292d486dc z80a: add stuctured flow words 
Allow us to rely a little less on labels. We now only need 4.
 2020-04-13 20:34:53 -04:00
Virgil Dupras
7d184b9e70 Use SUBHLss, macro more 2020-04-13 19:31:23 -04:00