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Author SHA1 Message Date
Virgil Dupras
210b833c71 8086asm: begin adding MODRM-enabled ops 2020-06-12 12:07:48 -04:00
Virgil Dupras
749fdf1b18 8086asm: add 8-bit JMP, MOVrI, INT, 
Verified against nasm with equivalent code.
 2020-06-12 11:29:00 -04:00
Virgil Dupras
405444d630 8086asm: first steps 2020-06-12 10:49:27 -04:00
Virgil Dupras
1871c46614 VE: add backspace support in replace mode 2020-06-11 22:29:05 -04:00
Virgil Dupras
dc368597a6 VE: Add dirtiness indicator in status bar 
Written from VE!
 2020-06-11 21:52:08 -04:00
Virgil Dupras
838c88459b Make BLK@ FLUSH only if loading a different block 
Otherwise, when editing a file with VE, we would constantly write
to disk, which is a bit inefficient.
 2020-06-11 21:42:52 -04:00
Virgil Dupras
e317e9cc78 VE: use system input buffer for IBUF and FBUF typing 
This gives us backspace handling. Also, remove all usages of C<
which allows us to remove the C<* override.
 2020-06-11 20:45:46 -04:00
Virgil Dupras
4146110e0d Move EMPTY to core words 
It's a quite useful word and it doesn't make sense to reload it from
disk after each usage.
 2020-06-11 19:04:03 -04:00
Virgil Dupras
f6ded7712e VE: add 't' 
This is the first commit I do entirely in VE. It's a habit I'm planning
on taking as it helps a lot to find usability issues.
 2020-06-11 18:12:01 -04:00
Virgil Dupras
e83d5073ba VE: disallow buffer overflow during typing 
When reaching the end of the buffer when typing in IBUF or FBUF, stop
typing instead of overflowing.
 2020-06-11 14:48:18 -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
bd7da4658b VE: add gutter 2020-06-11 12:01:22 -04:00
Virgil Dupras
a405f77185 ed: don't crash when inserting in 64th char of the line 2020-06-10 20:56:19 -04:00
Virgil Dupras
7cad9ffe40 LIST: simplify logic 
There wasn't much of a reason to leave a loop early on 0x0d or null.
The idea was that once you have a CR or null, the rest is garbage
and you shouldn't see it.

However, it brought a problem: In VE, you couldn't insert characters
past that limit. It would be written, but never displayed. So let's
get rid of this logic and simply always display a 64x16 grid.
 2020-06-10 19:00:03 -04:00
Virgil Dupras
bc951a5ff1 ed and VE: add command Y 2020-06-10 17:27:14 -04:00
Virgil Dupras
8f0e51a21c VE: make D copy first deleted line to IBUF 2020-06-10 16:59:12 -04:00
Virgil Dupras
6a6c59300e VE: make ACC reset after each non-digit keystrokes 
It simplifies things. Also, removed ';' which became useless.
 2020-06-10 16:54:36 -04:00
Virgil Dupras
c16c5c98ce Improve usage docs 2020-06-09 22:55:42 -04:00
Virgil Dupras
1adfd0c1a6 ed: make X and E cut to IBUF 
This allows cut&paste similar to VI's
 2020-06-09 22:09:15 -04:00
Virgil Dupras
f90e03b0cb ed: free some blocks for the docs 2020-06-09 21:48:49 -04:00
Virgil Dupras
64ce8ab3e9 ed: Improve F with repeated searches 
Make F search from curpos+1 so that it's possible to search the
same word we've just found a second time. Previously, it would find
the word under the cursor.

Also, improve docs a bit.
 2020-06-09 21:17:08 -04:00
Virgil Dupras
54bc2e4b96 CONTRIBUTING: add note about typo PRs 
ref #3
 2020-06-09 20:36:40 -04:00
Virgil Dupras
b2a07ca68d Remove mailing list link from README 
I think we can say it didn't take off.
 2020-06-09 08:32:55 -04:00
Virgil Dupras
4d893d90fc VE: Improve I and F buffer typing 
Previously, it would keep the old buffer displayed why typing over
it. I had kept it thus because I didn't want to erase the buffer
right away because the behavior is that when we type nothing, we
keep the buffer as-is and repeat the action.

Now, the behavior of I and F is much better. It keeps the buffer
displayed until the first non-return keystroke and then erases it.

Also, fixed PSP leak in _type and fixed PSP overuse in successful
_F (they balanced out).
 2020-06-08 21:23:23 -04:00
Zac Stewart
ae954906d8
Make blkpack close files when it's done reading them (#108) 
* Report when a file cannot be opened

* Close files when done reading them
 2020-06-08 19:09:45 -05:00
Virgil Dupras
48f371d380 emul: add sanity check for blkfs 2020-06-08 06:47:06 -04:00
Virgil Dupras
bcddfd461d blkpack: Remove usage of nonstandard d_type 
The man page says it's not always available and it caused problems
under some FSes. The condition is not needed in the context of
blk/, let's scrap it.
 2020-06-08 06:38:33 -04:00
Virgil Dupras
a36db99651 VE: properly initialize variables 
This fixes weird glitches I had on trs80. It's *always* a matter of
RAM initialization. By now, I should know...
 2020-06-07 16:16:07 -04:00
Virgil Dupras
b2b556911f trs80: implement AT-XY 
Also, I've run VE on the TRS-80 for the first time! It doesn't work
well though. Screen is mostly blank all the time.

I removed instructions from the recipe which became obsolete when
Collapse OS became 100% bootstrapped. Also, I've updated instructions
to change the NL override which is necessary for blkup to work.
 2020-06-07 11:14:57 -04:00
Virgil Dupras
ab76d8d648 VE: add 'D' 2020-06-07 09:30:31 -04:00
Virgil Dupras
15acf30ca3 VE: add 'o' and 'O' 2020-06-07 07:25:02 -04:00
Virgil Dupras
c6016cd429 VE: fix buffer overflow with 'f' and make 'H' and 'L' affect 'f' 2020-06-06 21:59:22 -04:00
Virgil Dupras
b22ab8437b VE: add command 'f' 
Kinda proud of this one. Efficiently piggy-backing on the Block
Editor, keeping things simple, and yet, building power into the
editor.
 2020-06-06 21:46:46 -04:00
Virgil Dupras
204a66277e VE: replace 'W' with 'b' and implement 'W' and 'B' 
Which are end-of-word movements.
 2020-06-06 21:01:35 -04:00
Virgil Dupras
9d4e9ef08d VE: Add X 2020-06-05 14:01:39 -04:00
Virgil Dupras
6212a08866 VE: Add F and E 2020-06-05 13:54:45 -04:00
Virgil Dupras
a1b99275e6 VE: Add replace mode 2020-06-05 11:01:26 -04:00
Virgil Dupras
e7a6c777c7 VE: refactor mode indicators 
The indicator is going to be empty most of the time and will be
emitted by the mode changer directly. That's going to the upper-right
corner and the status bar avoids emitting in that area.
 2020-06-05 10:38:05 -04:00
Virgil Dupras
4af93d53e3 VE: add I command 
Also, add insert and find buffers to the header, making it 3 lines
high.

Also, fix the "I" overshadowing word which wasn't operating on the
proper RSP level.

Also, fix I which didn't mark the block as dirty.
 2020-06-04 22:54:27 -04:00
Virgil Dupras
e36080d7b8 VE: load Block Editor and reuse some of its words 2020-06-04 20:20:35 -04:00
Virgil Dupras
297c187426 VE: add mode indicator in status bar 2020-06-04 20:07:02 -04:00
Virgil Dupras
2bf4db59ed VE: Add H and L 
Also, add MODE indirection.
 2020-06-04 19:20:40 -04:00
Virgil Dupras
878df2d53b VE: make w affected by modifier 2020-06-04 18:59:54 -04:00
Virgil Dupras
98e820cf51 WE: why case-insensitive again? 2020-06-04 18:52:59 -04:00
Virgil Dupras
11843cc613 VE: add W and S movements 2020-06-04 17:22:07 -04:00
Virgil Dupras
77aedd7338 VE: add H, J, K, L 2020-06-04 12:04:13 -04:00
Virgil Dupras
c07a594e1a Begin working on a Visual Editor 2020-06-04 10:39:59 -04:00
Virgil Dupras
f53f91558b find: don't protect BC 
not needed
 2020-06-03 20:57:29 -04:00
Virgil Dupras
c26c454cbf extra words: allow finer-grained loading 2020-06-03 20:28:18 -04:00
Virgil Dupras
d8a6456206 (parsed): fix crash on parsing non-decimal staring with '-' 
The address returned in the error condition would be off by one.
 2020-05-25 21:15:07 -04:00