collapseos/recipes/sms/kbd/glue.asm

; 8K of onboard RAM
.equ	RAMSTART	0xc000
; Memory register at the end of RAM. Must not overwrite
.equ	RAMEND		0xddd0

	jp	init

.fill 0x66-$
	retn

.inc "err.h"
.inc "ascii.h"
.inc "core.asm"
.inc "str.asm"

.inc "sms/kbd.asm"
.equ	KBD_RAMSTART	RAMSTART
.equ	KBD_FETCHKC	smskbdFetchKCB
.inc "kbd.asm"

.inc "sms/vdp.asm"
.equ	GRID_RAMSTART	KBD_RAMEND
.equ	GRID_COLS	VDP_COLS
.equ	GRID_ROWS	VDP_ROWS
.equ	GRID_SETCELL	vdpSetCell
.inc "grid.asm"

.equ	STDIO_RAMSTART	GRID_RAMEND
.equ	STDIO_GETC	kbdGetC
.equ	STDIO_PUTC	gridPutC
.inc "stdio.asm"

; *** BASIC ***

; RAM space used in different routines for short term processing.
.equ	SCRATCHPAD_SIZE	STDIO_BUFSIZE
.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"

init:
	di
	im	1

	ld	sp, RAMEND

	; Initialize the keyboard latch by "dummy reading" once. This ensures
	; that the adapter knows it can fill its '164.
	; Port B TH output, high
	ld	a, 0b11110111
	out	(0x3f), a
	nop
	; Port A/B reset
	ld	a, 0xff
	out	(0x3f), a

	call	kbdInit
	call	gridInit
	call	vdpInit
	call	basInit
	jp	basStart

FNT_DATA:
.bin "fnt/7x7.bin"

.fill 0x7ff0-$
.db "TMR SEGA", 0x00, 0x00, 0xfb, 0x68, 0x00, 0x00, 0x00, 0x4c
recipes/sms/kbd: PS/2 keyboard adapter for the SMS! 2019-07-19 15:45:13 -04:00			`; 8K of onboard RAM`
			`.equ RAMSTART 0xc000`
			`; Memory register at the end of RAM. Must not overwrite`
recipes/sms/romasm: ed and zasm, fully functional! 2019-07-25 14:23:13 -04:00			`.equ RAMEND 0xddd0`
recipes/sms/kbd: PS/2 keyboard adapter for the SMS! 2019-07-19 15:45:13 -04:00
			`jp init`

			`.fill 0x66-$`
			`retn`

zasm: rename #inc to .inc scas, it's not needed any more. 2019-10-06 14:32:23 -04:00			`.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. 2019-11-13 20:38:06 -05:00			`.inc "ascii.h"`
zasm: rename #inc to .inc scas, it's not needed any more. 2019-10-06 14:32:23 -04:00			`.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. 2019-11-14 09:55:31 -05:00			`.inc "str.asm"`
recipes/sms/kbd: PS/2 keyboard adapter for the SMS! 2019-07-19 15:45:13 -04:00
zasm: rename #inc to .inc scas, it's not needed any more. 2019-10-06 14:32:23 -04:00			`.inc "sms/kbd.asm"`
recipes/sms/kbd: PS/2 keyboard adapter for the SMS! 2019-07-19 15:45:13 -04:00			`.equ KBD_RAMSTART RAMSTART`
recipes/sms/romasm: ed and zasm, fully functional! 2019-07-25 14:23:13 -04:00			`.equ KBD_FETCHKC smskbdFetchKCB`
zasm: rename #inc to .inc scas, it's not needed any more. 2019-10-06 14:32:23 -04:00			`.inc "kbd.asm"`
recipes/sms/kbd: PS/2 keyboard adapter for the SMS! 2019-07-19 15:45:13 -04:00
zasm: rename #inc to .inc scas, it's not needed any more. 2019-10-06 14:32:23 -04:00			`.inc "sms/vdp.asm"`
New kernel module: grid 2020-02-24 20:36:08 -05:00			`.equ GRID_RAMSTART KBD_RAMEND`
			`.equ GRID_COLS VDP_COLS`
			`.equ GRID_ROWS VDP_ROWS`
			`.equ GRID_SETCELL vdpSetCell`
			`.inc "grid.asm"`
recipes/sms/kbd: PS/2 keyboard adapter for the SMS! 2019-07-19 15:45:13 -04:00
New kernel module: grid 2020-02-24 20:36:08 -05:00			`.equ STDIO_RAMSTART GRID_RAMEND`
stdio: remove a layer of indirection in GetC/PutC We use zasm's ability to use labels in .equ directive. We didn't do it before because for a while, we were in between scas and zasm (scas was used in automated tests) so we needed to use the lowest common denominator: zasm doesn't have macros and scas can't use labels in .equ directives. This forced us to add this layer of indirection. But now that we are completely cut from scas' dependency, we can use this nice zasm's ability. 2019-11-04 09:55:12 -05:00			`.equ STDIO_GETC kbdGetC`
New kernel module: grid 2020-02-24 20:36:08 -05:00			`.equ STDIO_PUTC gridPutC`
zasm: rename #inc to .inc scas, it's not needed any more. 2019-10-06 14:32:23 -04:00			`.inc "stdio.asm"`
recipes/sms/kbd: PS/2 keyboard adapter for the SMS! 2019-07-19 15:45:13 -04:00
recipes/sms: use BASIC shell 2019-12-02 20:18:41 -05:00			`; * 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. 2019-12-12 12:04:56 -05:00			`.equ SCRATCHPAD_SIZE STDIO_BUFSIZE`
recipes/sms: use BASIC shell 2019-12-02 20:18:41 -05:00			`.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. 2019-11-15 15:37:49 -05:00			`.inc "lib/util.asm"`
recipes/sms: use BASIC shell 2019-12-02 20:18:41 -05:00			`.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. 2019-11-15 15:37:49 -05:00			`.inc "lib/parse.asm"`
recipes/sms: use BASIC shell 2019-12-02 20:18:41 -05:00			`.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"`
recipes/sms/kbd: PS/2 keyboard adapter for the SMS! 2019-07-19 15:45:13 -04:00
			`init:`
			`di`
			`im 1`

			`ld sp, RAMEND`

			`; Initialize the keyboard latch by "dummy reading" once. This ensures`
			`; that the adapter knows it can fill its '164.`
			`; Port B TH output, high`
			`ld a, 0b11110111`
			`out (0x3f), a`
			`nop`
			`; Port A/B reset`
			`ld a, 0xff`
			`out (0x3f), a`

			`call kbdInit`
New kernel module: grid 2020-02-24 20:36:08 -05:00			`call gridInit`
recipes/sms/kbd: PS/2 keyboard adapter for the SMS! 2019-07-19 15:45:13 -04:00			`call vdpInit`
recipes/sms: use BASIC shell 2019-12-02 20:18:41 -05:00			`call basInit`
			`jp basStart`
recipes/sms/kbd: PS/2 keyboard adapter for the SMS! 2019-07-19 15:45:13 -04:00
sms/vdp: use fonts from kernel/fnt Instead of its own version of one. Additionally, add a 7x7 font to the collection. 2020-01-07 22:14:00 -05:00			`FNT_DATA:`
			`.bin "fnt/7x7.bin"`

recipes/sms/kbd: PS/2 keyboard adapter for the SMS! 2019-07-19 15:45:13 -04:00			`.fill 0x7ff0-$`
			`.db "TMR SEGA", 0x00, 0x00, 0xfb, 0x68, 0x00, 0x00, 0x00, 0x4c`