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Author SHA1 Message Date
Virgil Dupras
12bc120375 basic: add bsel, bseek, getb, putb commands 2019-11-24 20:34:23 -05:00
Virgil Dupras
8f1d942e5f basic: add addr command 2019-11-24 15:39:36 -05:00
Virgil Dupras
381d57a513 basic: make variable A the only input variable 
Mechanism for assigning inputs to the specified variable is clumsy and uses
binary space. Always using A is much simpler and doesn't seem very limiting to
me. I do that because there's many more "input" commands I'd like to add.
 2019-11-24 14:55:50 -05:00
Virgil Dupras
e1df320d44 basic: add ldbas command 2019-11-24 14:26:32 -05:00
Virgil Dupras
13f935aa88 basic: add fls command 
Also, add the new `bshell` emulated tool. BASIC is on its way to replace the
shell.
 2019-11-24 10:24:15 -05:00
Virgil Dupras
aad8efeff7 recipes/rc2014/basic: new recipe 2019-11-23 21:22:31 -05:00
Virgil Dupras
b7d4860acf basic: add in/out commands 
Also, fixed the cmd matching algo to not accept partial matches. For example,
to stop matching "input" when the command was "in".
 2019-11-23 20:38:56 -05:00
Virgil Dupras
7761cebb0a basic: add sleep command 
also fix broken "peek"
 2019-11-23 17:07:14 -05:00
Virgil Dupras
9602f9b983 basic: add peek/poke/deek/doke commands 2019-11-23 16:09:34 -05:00
Virgil Dupras
585e9f3b6e tools/emul: add troubleshooting instructions in README 
fixes #79
 2019-11-23 15:22:26 -05:00
Virgil Dupras
a680fd3328 basic: add support for signed integers 2019-11-23 14:56:23 -05:00
Virgil Dupras
43b450ca30 Update bootstrap binaries 2019-11-22 19:57:11 -05:00
Virgil Dupras
501fe96e07 lib/expr: use the IX register a bit less 
It's an awkward register to use and avoiding its use allows us to strip the
resulting binary significantly. parseEXPR keeps the same signature though.
 2019-11-22 19:56:08 -05:00
Virgil Dupras
2f71ad6d2f lib/expr: add left/right shifting operators 2019-11-22 18:35:10 -05:00
Virgil Dupras
a03c5ac700 lib/expr: add bitwise operators 2019-11-22 17:16:51 -05:00
Virgil Dupras
972e8221f1 lib/expr: add division and modulo operators 2019-11-22 15:03:16 -05:00
Virgil Dupras
1b01f13105 lib/expr: refactor for easier operator addition 2019-11-22 14:45:12 -05:00
Virgil Dupras
fd5b2ab856 Put app-common documentation in apps/README.md 2019-11-22 14:01:16 -05:00
Virgil Dupras
e17dc1e1e1 basic: add input command 2019-11-21 20:17:55 -05:00
Virgil Dupras
982d20f895 basic: allow printing of quoted strings 2019-11-21 19:56:51 -05:00
Virgil Dupras
704d32279a basic: document better 2019-11-21 17:03:46 -05:00
Virgil Dupras
7262993f14 basic: add if 2019-11-21 16:06:14 -05:00
Virgil Dupras
3f3dd9141e basic: allow multiple args in print 2019-11-20 21:02:11 -05:00
Virgil Dupras
9c400ca642 basic: add goto 
Things are getting super cereal...
 2019-11-20 15:45:53 -05:00
Virgil Dupras
9d6cbe577c basic: add variables 
Things are getting cereal...
 2019-11-20 15:10:00 -05:00
Virgil Dupras
9c9484fb88 basic: add run command 2019-11-20 10:49:23 -05:00
Virgil Dupras
9d1003e7a2 basic: keep line index ordered and line numbers unique 2019-11-19 21:55:26 -05:00
Virgil Dupras
62138b12cf basic: add buffer line index 2019-11-19 20:43:01 -05:00
Virgil Dupras
4c6de413df basic: begin implementing a line buffer 2019-11-19 15:14:04 -05:00
Virgil Dupras
f5b04fc02f basic: add expression support to print 
Again, same thing as in zasm.
 2019-11-18 15:52:44 -05:00
Virgil Dupras
0bd58fd178 basic: parse hex, binary and char literals 
Same thing as in zasm.
 2019-11-18 15:22:09 -05:00
Virgil Dupras
1cea6e71e0 basic: add a print cmd 
It can only print a decimal literal. But still, that's a big step because
I hadn't implemented decimal formatting yet.
 2019-11-18 13:40:23 -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
cdd0b64570 Modify userspace .org and RAMSTART expectations 
Instead of expecting a `USER_CODE` symbol to be set, we expect `.org` to be
set in all userspace glue code. This gives us more flexibility with regards to
how we manage that.

Moreover, instead of making `USER_RAMSTART` mandatory, we make it default to
the end of the binary, which is adequate in a majority of cases.

Will be useful for my upcoming mega-commit... :)
 2019-11-15 10:33:13 -05:00
Virgil Dupras
d74b85f146 zasm: allow .org to be specified from command line 
Also important for upcoming mega commit...
 2019-11-15 09:57:53 -05:00
Virgil Dupras
e5255d22f9 zasm: make .org affect "@" symbol 2019-11-15 08:59:26 -05:00
Virgil Dupras
79e04189b0 Update bootstrap binaries 2019-11-14 21:25:11 -05:00
Virgil Dupras
6e714875dc zasm: Constants now override labels at all times 
Will be important for a mega-commit I'm preparing.
 2019-11-14 21:16:36 -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
0e79035d9c Disable test failing on Travis 2019-11-13 22:37:00 -05:00
Virgil Dupras
69750b4da6 Update bootstrap binaries 2019-11-13 22:28:47 -05:00
Virgil Dupras
82995eb346 zasm: have .fill generate an error on overflow 
Can possibly avoid a lot of debugging pain.
 2019-11-13 22:27:48 -05:00
Virgil Dupras
8d46895dd3 lib/parse: decimal ending with a whitespace are now valid 
Also, make empty strings be parsed as invalid by parseDecimal.
 2019-11-13 22:10:06 -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
7046d23cd6 Fix broken IRC link in README 2019-11-13 20:27:09 -05:00
Sarala Saraswati
0f65890074 add link to freenode irc channel and sonic.net hosted listserv (#75) 2019-11-13 20:17:21 -05:00
Virgil Dupras
f3992ed598 basic: begin an implementation from sratch 
Let's see where it will lead us...
 2019-11-13 15:28:16 -05:00
Virgil Dupras
1ae51bea3a tests: remove instr blacklist 
Because scas isn't used as a reference anymore, no need to blacklist its bugs
anymore.
 2019-11-12 20:47:09 -05:00
Virgil Dupras
39f3637c60 recipes/ti84: TI-84+ base recipe is complete! 
ref #41
 2019-11-12 20:32:56 -05:00
Virgil Dupras
0e9173a89a zasm: optimize handleRST a little bit 2019-11-12 19:45:56 -05:00