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600 Commits 4 Branches 0 Tags 10 MiB
43f4c5200e
Commit Graph

284 Commits

Author SHA1 Message Date
Virgil Dupras
43f4c5200e basic: don't choke on ':' in '"' literals 2019-12-12 12:22:38 -05:00
Virgil Dupras
3db38b0d89 basic: add while command 2019-12-12 11:17:10 -05:00
Virgil Dupras
51c977f2ed basic: allow multiple commands on the same line 2019-12-12 10:51:13 -05:00
Virgil Dupras
1710c865dc doc: refer to the new BASIC shell in example 
ref #80
 2019-12-11 14:57:07 -05:00
Virgil Dupras
25d25d017c Replace old shell with BASIC shell 
fixes #80
 2019-12-11 14:05:34 -05:00
Virgil Dupras
20151a97f8 recipes/rc2014/zasm: use BASIC shell 
Also made Makefile actually portable.
 2019-12-11 13:01:51 -05:00
Virgil Dupras
880775ae69 recipes/rc2014/sdcard: use BASIC shell 2019-12-11 11:18:32 -05:00
Virgil Dupras
beaea6f978 basic: add puth command 2019-12-09 14:34:14 -05:00
Virgil Dupras
105acedab8 basic: improve README 
markdown formatting was broken. Also, don't mark it as WIP.
 2019-12-01 20:15:45 -05:00
Virgil Dupras
10864afa96 recipes/ti84: use the BASIC shell 2019-12-01 20:11:13 -05:00
Virgil Dupras
4c07639808 basic: make cmd table more compact 
This shaves off quite a few bytes from the binary.
 2019-11-30 21:36:34 -05:00
Virgil Dupras
4ba84dac5c basic: add getc/putc commands 2019-11-30 21:13:44 -05:00
Virgil Dupras
77485a0031 basic: change welcome prompt 
This is becoming the new shell, it has to step up to its new responsibilities!
 2019-11-30 20:50:34 -05:00
Virgil Dupras
fc23a7c4a1 basic: do registers-to-vars transfer after pgm hook call 2019-11-25 23:16:15 -05:00
Virgil Dupras
264e72e0fd basic: add fnew and fdel commands 2019-11-25 22:49:24 -05:00
Virgil Dupras
7c893dada1 basic: can now execute user apps! 
Shell replacement sequence beginning in 3, 2, 1...
 2019-11-25 22:05:10 -05:00
Virgil Dupras
b29073b01d basic: add fopen command 2019-11-25 21:41:37 -05:00
Virgil Dupras
a0daed6812 basic: add usr command 2019-11-24 21:07:03 -05:00
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
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
a680fd3328 basic: add support for signed integers 2019-11-23 14:56:23 -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