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recipes/ti84: use the BASIC shell

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Virgil Dupras 2019-12-01 20:11:13 -05:00
parent 572e3566eb
commit 10864afa96
5 changed files with 45 additions and 14 deletions
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4
apps/shell/README.md
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@ -1,5 +1,9 @@
# shell
**This shell is currently being replaced with the
[BASIC shell](../basic/README.md). While it's still used in many places, it's
being phased out.**
The shell is a text interface giving you access to commands to control your
machine. It is not built to be user friendly, but to minimize binary space and
maximize code simplicity.

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doc/README.md
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@ -8,6 +8,7 @@
## User guide
* [The shell](../apps/shell/README.md)
* [The BASIC shell](../apps/basic/README.md)
* [Load code in RAM and run it](load-run-code.md)
* [Using block devices](blockdev.md)
* [Using the filesystem](fs.md)

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recipes/rc2014/basic/glue.asm
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@ -51,6 +51,7 @@ init:
call aciaInit
ei
call basInit
jp basStart

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recipes/ti84/README.md
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@ -10,7 +10,7 @@ There is, however, a built-in USB controller that might prove very handy.
## Recipe
This recipe gets the Collapse OS shell to run on the TI-84+, using its LCD
This recipe gets the Collapse OS BASIC shell to run on the TI-84+, using its LCD
screen as output and its builtin keyboard as input.
## Gathering parts
@ -66,9 +66,19 @@ Press "1" to continue.
When this is done, you can press the ON button to see Collapse OS' prompt!
## Validation errors
Sometimes, when uploading an upgrade file to your calculator, you'll get a
validation error. You can always try again, but in my own experience, some
specific binaries will simply always be refused by the calculator. Adding
random `nop` or reordering lines (when it makes sense, of course) should fix
the problem.
I'm not sure whether it's a bug with the calculator or with `mktiupgrade`.
## Usage
The shell works like a normal shell, but with very tight screen space.
The shell works like a normal BASIC shell, but with very tight screen space.
When pressing a "normal" key, it spits the symbol associated to it depending
on the current mode. In normal mode, it spits the digit/symbol. In Alpha mode,

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recipes/ti84/glue.asm
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@ -37,19 +37,31 @@
.equ STDIO_PUTC lcdPutC
.inc "stdio.asm"
; *** Shell ***
.inc "lib/util.asm"
.inc "lib/parse.asm"
.inc "lib/args.asm"
.inc "lib/stdio.asm"
.equ SHELL_RAMSTART STDIO_RAMEND
.equ SHELL_EXTRA_CMD_COUNT 0
.inc "shell/main.asm"
; *** BASIC ***
; RAM space used in different routines for short term processing.
.equ SCRATCHPAD_SIZE 0x20
.equ SCRATCHPAD STDIO_RAMEND
.inc "lib/util.asm"
.inc "lib/ari.asm"
.inc "lib/parse.asm"
.inc "lib/fmt.asm"
.equ EXPR_PARSE parseLiteralOrVar
.inc "lib/expr.asm"
.inc "basic/util.asm"
.inc "basic/parse.asm"
.inc "basic/tok.asm"
.equ VAR_RAMSTART SCRATCHPAD+SCRATCHPAD_SIZE
.inc "basic/var.asm"
.equ BUF_RAMSTART VAR_RAMEND
.inc "basic/buf.asm"
.equ BAS_RAMSTART BUF_RAMEND
.inc "basic/main.asm"
.out BAS_RAMEND
boot:
di
ld hl, RAMEND
ld sp, hl
ld sp, RAMEND
im 1
; enable ON key interrupt
@ -67,12 +79,15 @@ boot:
halt
main:
; Fun fact: if I place this line just above basStart like I would
; normally do, my TI-84+ refuses to validate the binary. But placed
; here, validation works fine.
call basInit
call kbdInit
call lcdInit
xor a
call lcdSetCol
call shellInit
jp shellLoop
jp basStart
handleInterrupt:
di