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collapseos/recipes/ti84/glue.asm

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recipes/ti84: first step This was mostly lifted from my "tihello" example, but it required significant adjustments. This commit also introduces a font management system. A lot of fonts are available online, but sources aren't always clear so to avoid copyright landmines, I re-created my first 5x7 font from scratch. As it is now, this resulting ROM gets "Collapse OS>" to be displayed on the LCD screen. Much work still left to do. ref #41
2019-11-08 03:52:29 +11:00
.equ RAMSTART 0x8000
.equ RAMEND 0xbfff
.equ PORT_INT_MASK 0x03
.equ INT_MASK_ON 0x00
.equ PORT_INT_TRIG 0x04
.equ INT_TRIG_ON 0x00
.equ PORT_BANKB 0x07
jp boot
.fill 0x18-$
jp boot ; reboot
.fill 0x38-$
jp handleInterrupt
.fill 0x53-$
jp boot
; 0x0056
.db 0xFF, 0xA5, 0xFF
.fill 0x64-$
.inc "err.h"
Move ASCII consts to ascii.h And made them shorter in name. The new ascii.h file allow reuse in userspace code.
2019-11-14 12:38:06 +11:00
.inc "ascii.h"
recipes/ti84: first step This was mostly lifted from my "tihello" example, but it required significant adjustments. This commit also introduces a font management system. A lot of fonts are available online, but sources aren't always clear so to avoid copyright landmines, I re-created my first 5x7 font from scratch. As it is now, this resulting ROM gets "Collapse OS>" to be displayed on the LCD screen. Much work still left to do. ref #41
2019-11-08 03:52:29 +11:00
.inc "core.asm"
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.
2019-11-15 01:55:31 +11:00
.inc "str.asm"
recipes/ti84: use a 3x5 font instead of a 5x7 one This allow a lot more characters to fit on that tiny screen... ref #41
2019-11-12 05:24:50 +11:00
.equ FNT_WIDTH 3
.equ FNT_HEIGHT 5
recipes/ti84: first step This was mostly lifted from my "tihello" example, but it required significant adjustments. This commit also introduces a font management system. A lot of fonts are available online, but sources aren't always clear so to avoid copyright landmines, I re-created my first 5x7 font from scratch. As it is now, this resulting ROM gets "Collapse OS>" to be displayed on the LCD screen. Much work still left to do. ref #41
2019-11-08 03:52:29 +11:00
.inc "fnt/mgm.asm"
ti/lcd: add linefeed support There's no scrolling yet... ref #41
2019-11-08 12:52:09 +11:00
.equ LCD_RAMSTART RAMSTART
recipes/ti84: first step This was mostly lifted from my "tihello" example, but it required significant adjustments. This commit also introduces a font management system. A lot of fonts are available online, but sources aren't always clear so to avoid copyright landmines, I re-created my first 5x7 font from scratch. As it is now, this resulting ROM gets "Collapse OS>" to be displayed on the LCD screen. Much work still left to do. ref #41
2019-11-08 03:52:29 +11:00
.inc "ti/lcd.asm"
ti/kbd: implement A-Lock ref #41
2019-11-09 12:27:43 +11:00
.equ KBD_RAMSTART LCD_RAMEND
recipes/ti84: first step This was mostly lifted from my "tihello" example, but it required significant adjustments. This commit also introduces a font management system. A lot of fonts are available online, but sources aren't always clear so to avoid copyright landmines, I re-created my first 5x7 font from scratch. As it is now, this resulting ROM gets "Collapse OS>" to be displayed on the LCD screen. Much work still left to do. ref #41
2019-11-08 03:52:29 +11:00
.inc "ti/kbd.asm"
ti/kbd: implement A-Lock ref #41
2019-11-09 12:27:43 +11:00
.equ STDIO_RAMSTART KBD_RAMEND
ti/kbd: begin GetC implementation For now, only digits are scanned. Lifted from my "tiseg7" example. ref #41
2019-11-09 06:04:56 +11:00
.equ STDIO_GETC kbdGetC
recipes/ti84: first step This was mostly lifted from my "tihello" example, but it required significant adjustments. This commit also introduces a font management system. A lot of fonts are available online, but sources aren't always clear so to avoid copyright landmines, I re-created my first 5x7 font from scratch. As it is now, this resulting ROM gets "Collapse OS>" to be displayed on the LCD screen. Much work still left to do. ref #41
2019-11-08 03:52:29 +11:00
.equ STDIO_PUTC lcdPutC
.inc "stdio.asm"
recipes/ti84: use the BASIC shell
2019-12-02 12:11:13 +11:00
; *** BASIC ***
; RAM space used in different routines for short term processing.
tools: use BASIC's new while loop Also, increase STDIO_BUFSIZE to 0x40 so that those while loops work.
2019-12-13 04:04:56 +11:00
.equ SCRATCHPAD_SIZE STDIO_BUFSIZE
recipes/ti84: use the BASIC shell
2019-12-02 12:11:13 +11:00
.equ SCRATCHPAD STDIO_RAMEND
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.
2019-11-16 07:37:49 +11:00
.inc "lib/util.asm"
recipes/ti84: use the BASIC shell
2019-12-02 12:11:13 +11:00
.inc "lib/ari.asm"
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.
2019-11-16 07:37:49 +11:00
.inc "lib/parse.asm"
recipes/ti84: use the BASIC shell
2019-12-02 12:11:13 +11:00
.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
recipes/ti84: first step This was mostly lifted from my "tihello" example, but it required significant adjustments. This commit also introduces a font management system. A lot of fonts are available online, but sources aren't always clear so to avoid copyright landmines, I re-created my first 5x7 font from scratch. As it is now, this resulting ROM gets "Collapse OS>" to be displayed on the LCD screen. Much work still left to do. ref #41
2019-11-08 03:52:29 +11:00
boot:
di
recipes/ti84: use the BASIC shell
2019-12-02 12:11:13 +11:00
ld sp, RAMEND
recipes/ti84: use a 3x5 font instead of a 5x7 one This allow a lot more characters to fit on that tiny screen... ref #41
2019-11-12 05:24:50 +11:00
im 1
recipes/ti84: first step This was mostly lifted from my "tihello" example, but it required significant adjustments. This commit also introduces a font management system. A lot of fonts are available online, but sources aren't always clear so to avoid copyright landmines, I re-created my first 5x7 font from scratch. As it is now, this resulting ROM gets "Collapse OS>" to be displayed on the LCD screen. Much work still left to do. ref #41
2019-11-08 03:52:29 +11:00
; enable ON key interrupt
in a, (PORT_INT_MASK)
set INT_MASK_ON, a
out (PORT_INT_MASK), a
ld a, 0x80
out (PORT_BANKB), a
ei
call lcdOff
; sleep until we press ON
halt
main:
recipes/ti84: use the BASIC shell
2019-12-02 12:11:13 +11:00
; 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
ti/kbd: implement A-Lock ref #41
2019-11-09 12:27:43 +11:00
call kbdInit
recipes/ti84: first step This was mostly lifted from my "tihello" example, but it required significant adjustments. This commit also introduces a font management system. A lot of fonts are available online, but sources aren't always clear so to avoid copyright landmines, I re-created my first 5x7 font from scratch. As it is now, this resulting ROM gets "Collapse OS>" to be displayed on the LCD screen. Much work still left to do. ref #41
2019-11-08 03:52:29 +11:00
call lcdInit
xor a
call lcdSetCol
recipes/ti84: use the BASIC shell
2019-12-02 12:11:13 +11:00
jp basStart
recipes/ti84: first step This was mostly lifted from my "tihello" example, but it required significant adjustments. This commit also introduces a font management system. A lot of fonts are available online, but sources aren't always clear so to avoid copyright landmines, I re-created my first 5x7 font from scratch. As it is now, this resulting ROM gets "Collapse OS>" to be displayed on the LCD screen. Much work still left to do. ref #41
2019-11-08 03:52:29 +11:00
handleInterrupt:
di
push af
; did we push the ON button?
in a, (PORT_INT_TRIG)
bit INT_TRIG_ON, a
jp z, .done ; no? we're done
; yes? acknowledge and boot
in a, (PORT_INT_MASK)
res INT_MASK_ON, a ; acknowledge interrupt
out (PORT_INT_MASK), a
pop af
ei
jp main
recipes/ti84: use a 3x5 font instead of a 5x7 one This allow a lot more characters to fit on that tiny screen... ref #41
2019-11-12 05:24:50 +11:00
recipes/ti84: first step This was mostly lifted from my "tihello" example, but it required significant adjustments. This commit also introduces a font management system. A lot of fonts are available online, but sources aren't always clear so to avoid copyright landmines, I re-created my first 5x7 font from scratch. As it is now, this resulting ROM gets "Collapse OS>" to be displayed on the LCD screen. Much work still left to do. ref #41
2019-11-08 03:52:29 +11:00
.done:
pop af
ei
reti
FNT_DATA:
recipes/ti84: use a 3x5 font instead of a 5x7 one This allow a lot more characters to fit on that tiny screen... ref #41
2019-11-12 05:24:50 +11:00
.bin "fnt/3x5.bin"
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