From b5683f447bbdade9a92ac4d0aed6a913e875e5a8 Mon Sep 17 00:00:00 2001 From: Virgil Dupras Date: Thu, 21 May 2020 13:57:34 -0400 Subject: [PATCH] sms/kbd: update instructions for Forth Collapse OS The keyboard is a bit glitchy, but these are the same glitch as those that were already present in Z80 Collapse OS. They still need fixing... --- recipes/sms/README.md | 1 - recipes/sms/glue.asm | 69 ------- recipes/sms/kbd/Makefile | 22 --- recipes/sms/kbd/README.md | 16 +- recipes/sms/kbd/glue.asm | 82 -------- recipes/sms/kbd/ps2ctl.asm | 348 ---------------------------------- recipes/sms/romasm/.gitignore | 1 - recipes/sms/romasm/Makefile | 21 -- recipes/sms/romasm/README.md | 61 ------ recipes/sms/romasm/glue.asm | 187 ------------------ recipes/sms/romasm/user.h | 32 ---- 11 files changed, 8 insertions(+), 832 deletions(-) delete mode 100644 recipes/sms/glue.asm delete mode 100644 recipes/sms/kbd/Makefile delete mode 100644 recipes/sms/kbd/glue.asm delete mode 100644 recipes/sms/kbd/ps2ctl.asm delete mode 100644 recipes/sms/romasm/.gitignore delete mode 100644 recipes/sms/romasm/Makefile delete mode 100644 recipes/sms/romasm/README.md delete mode 100644 recipes/sms/romasm/glue.asm delete mode 100644 recipes/sms/romasm/user.h diff --git a/recipes/sms/README.md b/recipes/sms/README.md index 8b2f26e..bcd624c 100644 --- a/recipes/sms/README.md +++ b/recipes/sms/README.md @@ -18,7 +18,6 @@ This recipe is for installing a minimal Collapse OS system on the SMS. There are other recipes related to the SMS: * [Interfacing a PS/2 keyboard](kbd/README.md) -* [zasm and ed from ROM](romasm/README.md) ## Gathering parts diff --git a/recipes/sms/glue.asm b/recipes/sms/glue.asm deleted file mode 100644 index 173a87d..0000000 --- a/recipes/sms/glue.asm +++ /dev/null @@ -1,69 +0,0 @@ -; 8K of onboard RAM -.equ RAMSTART 0xc000 -; Memory register at the end of RAM. Must not overwrite -.equ RAMEND 0xfdd0 - - jp init - -.fill 0x66-$ - retn - -.inc "err.h" -.inc "ascii.h" -.inc "core.asm" -.inc "str.asm" - -.equ PAD_RAMSTART RAMSTART -.inc "sms/pad.asm" - -.inc "sms/vdp.asm" -.equ GRID_RAMSTART PAD_RAMEND -.equ GRID_COLS VDP_COLS -.equ GRID_ROWS VDP_ROWS -.equ GRID_SETCELL vdpSetCell -.equ GRID_GETC padGetC -.inc "grid.asm" - -.equ STDIO_RAMSTART GRID_RAMEND -.equ STDIO_GETC gridGetC -.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 - - call gridInit - call padInit - 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 diff --git a/recipes/sms/kbd/Makefile b/recipes/sms/kbd/Makefile deleted file mode 100644 index 35249f0..0000000 --- a/recipes/sms/kbd/Makefile +++ /dev/null @@ -1,22 +0,0 @@ -PROGNAME = ps2ctl -AVRDUDEMCU ?= t45 -AVRDUDEARGS ?= -c usbtiny -P usb -TARGETS = $(PROGNAME).bin -BASEDIR = ../../.. -EDIR = $(BASEDIR)/emul - -# Rules - -.PHONY: send all clean - -all: $(TARGETS) - @echo Done! - -send: $(PROGNAME).bin - avrdude $(AVRDUDEARGS) -p $(AVRDUDEMCU) -U flash:w:$(PROGNAME).bin - -$(PROGNAME).bin: $(PROGNAME).fs - cd $(EDIR) && ./avra.sh < ../recipes/sms/kbd/$(PROGNAME).fs > ../recipes/sms/kbd/$@ - -clean: - rm -f $(TARGETS) diff --git a/recipes/sms/kbd/README.md b/recipes/sms/kbd/README.md index a9b4627..a533f17 100644 --- a/recipes/sms/kbd/README.md +++ b/recipes/sms/kbd/README.md @@ -100,16 +100,16 @@ The code expects a SR-latch that works like a 4043, that is, S and R are triggered high, S makes Q high, R makes Q low. R is hooked to PB4. S is hooked to TH (and also the A/B on the '157). Q is hooked to PB0 and TL. -## Usage +## Building the binary -The code in this recipe is set up to listen to the keyboard on port B, leaving -port A to drive, for example, an Everdrive with a D-pad. Unlike the generic -SMS recipe, this kernel has no character selection mechanism. It acts like a -regular shell, taking input from the keyboard. +We start with the base recipe and add a few things: -`kernel/sms/kbd.asm` also has a FetchKC implementation for port A if you prefer. -Just hook it on. I've tried it, it works. +1. at the top: `RAMSTART 0x72 + CONSTANT PS2_MEM` +2. After VDP load: `641 LOAD : (ps2kc) (ps2kcB) ;` (that binds us to port B) +3. Right after: `411 414 LOADR` (that gives us `(key)`) +4. After `VDP$`: `PS2$`. -Did you get there? Feels pretty cool huh? +Rebuild, send to SMS, then run with your keyboard interface plugged to PortB. +It should mostly work. There are still a few glitches to iron out... [rc2014-ps2]: ../../rc2014/ps2 diff --git a/recipes/sms/kbd/glue.asm b/recipes/sms/kbd/glue.asm deleted file mode 100644 index cde534f..0000000 --- a/recipes/sms/kbd/glue.asm +++ /dev/null @@ -1,82 +0,0 @@ -; 8K of onboard RAM -.equ RAMSTART 0xc000 -; Memory register at the end of RAM. Must not overwrite -.equ RAMEND 0xddd0 - - jp init - -.fill 0x66-$ - 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 -.equ GRID_GETC kbdGetC -.inc "grid.asm" - -.equ STDIO_RAMSTART GRID_RAMEND -.equ STDIO_GETC gridGetC -.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 - diff --git a/recipes/sms/kbd/ps2ctl.asm b/recipes/sms/kbd/ps2ctl.asm deleted file mode 100644 index 08c5807..0000000 --- a/recipes/sms/kbd/ps2ctl.asm +++ /dev/null @@ -1,348 +0,0 @@ -; Receives keystrokes from PS/2 keyboard and send them to the '164. On the PS/2 -; side, it works the same way as the controller in the rc2014/ps2 recipe. -; However, in this case, what we have on the other side isn't a z80 bus, it's -; the one of the two controller ports of the SMS through a DB9 connector. - -; The PS/2 related code is copied from rc2014/ps2 without much change. The only -; differences are that it pushes its data to a '164 instead of a '595 and that -; it synchronizes with the SMS with a SR latch, so we don't need PCINT. We can -; also afford to run at 1MHz instead of 8. - -; *** Register Usage *** -; -; GPIOR0 flags: -; 0 - when set, indicates that the DATA pin was high when we received a -; bit through INT0. When we receive a bit, we set flag T to indicate -; it. -; -; R16: tmp stuff -; R17: recv buffer. Whenever we receive a bit, we push it in there. -; R18: recv step: -; - 0: idle -; - 1: receiving data -; - 2: awaiting parity bit -; - 3: awaiting stop bit -; R19: Register used for parity computations and tmp value in some other places -; R20: data being sent to the '164 -; Y: pointer to the memory location where the next scan code from ps/2 will be -; written. -; Z: pointer to the next scan code to push to the 595 -; - -.inc "avr.h" -.inc "tn254585.h" -.inc "tn45.h" - -; *** Constants *** -.equ CLK 2 ; Port B -.equ DATA 1 ; Port B -.equ CP 3 ; Port B -; SR-Latch's Q pin -.equ LQ 0 ; Port B -; SR-Latch's R pin -.equ LR 4 ; Port B - -; init value for TCNT0 so that overflow occurs in 100us -.equ TIMER_INITVAL 0x100-100 - -; *** Code *** - - rjmp main - rjmp hdlINT0 - -; Read DATA and set GPIOR0/0 if high. Then, set flag T. -; no SREG fiddling because no SREG-modifying instruction -hdlINT0: - sbic PINB, DATA ; DATA clear? skip next - sbi GPIOR0, 0 - set - reti - -main: - ldi r16, RAMEND&0xff - out SPL, r16 - ldi r16, RAMEND}8 - out SPH, r16 - - ; init variables - clr r18 - out GPIOR0, r18 - - ; Setup int0 - ; INT0, falling edge - ldi r16, 0x02 ; ISC01 - out MCUCR, r16 - ; Enable INT0 - ldi r16, 0x40 ; INT0 - out GIMSK, r16 - - ; Setup buffer - clr YH - ldi YL, SRAM_START&0xff - clr ZH - ldi ZL, SRAM_START&0xff - - ; Setup timer. We use the timer to clear up "processbit" registers after - ; 100us without a clock. This allows us to start the next frame in a - ; fresh state. at 1MHZ, no prescaling is necessary. Each TCNT0 tick is - ; already 1us long. - ldi r16, 0x01 ; CS00 - no prescaler - out TCCR0B, r16 - - ; init DDRB - sbi DDRB, CP - cbi PORTB, LR - sbi DDRB, LR - - sei - -loop: - brts processbit ; flag T set? we have a bit to process - cp YL, ZL ; if YL == ZL, buffer is empty - brne sendTo164 ; YL != ZL? our buffer has data - - ; nothing to do. Before looping, let's check if our communication timer - ; overflowed. - in r16, TIFR - sbrc r16, 1 ; TOV0 - rjmp processbitReset ; Timer0 overflow? reset processbit - - ; Nothing to do for real. - rjmp loop - -; Process the data bit received in INT0 handler. -processbit: - in r19, GPIOR0 ; backup GPIOR0 before we reset T - andi r19, 0x1 ; only keep the first flag - cbi GPIOR0, 0 - clt ; ready to receive another bit - - ; We've received a bit. reset timer - rcall resetTimer - - ; Which step are we at? - tst r18 - breq processbits0 - cpi r18, 1 - breq processbits1 - cpi r18, 2 - breq processbits2 - ; step 3: stop bit - clr r18 ; happens in all cases - ; DATA has to be set - tst r19 ; Was DATA set? - breq loop ; not set? error, don't push to buffer - ; push r17 to the buffer - st Y+, r17 - rcall checkBoundsY - rjmp loop - -processbits0: - ; step 0 - start bit - ; DATA has to be cleared - tst r19 ; Was DATA set? - brne loop ; Set? error. no need to do anything. keep r18 - ; as-is. - ; DATA is cleared. prepare r17 and r18 for step 1 - inc r18 - ldi r17, 0x80 - rjmp loop - -processbits1: - ; step 1 - receive bit - ; We're about to rotate the carry flag into r17. Let's set it first - ; depending on whether DATA is set. - clc - sbrc r19, 0 ; skip if DATA cleared. - sec - ; Carry flag is set - ror r17 - ; Good. now, are we finished rotating? If carry flag is set, it means - ; that we've rotated in 8 bits. - brcc loop ; we haven't finished yet - ; We're finished, go to step 2 - inc r18 - rjmp loop -processbits2: - ; step 2 - parity bit - mov r1, r19 - mov r19, r17 - rcall checkParity ; --> r16 - cp r1, r16 - brne processbitError ; r1 != r16? wrong parity - inc r18 - rjmp loop - -processbitError: - clr r18 - ldi r19, 0xfe - rcall sendToPS2 - rjmp loop - -processbitReset: - clr r18 - rcall resetTimer - rjmp loop - -; Send the value of r20 to the '164 -sendTo164: - sbis PINB, LQ ; LQ is set? we can send the next byte - rjmp loop ; Even if we have something in the buffer, we - ; can't: the SMS hasn't read our previous - ; buffer yet. - ; We disable any interrupt handling during this routine. Whatever it - ; is, it has no meaning to us at this point in time and processing it - ; might mess things up. - cli - sbi DDRB, DATA - - ld r20, Z+ - rcall checkBoundsZ - ldi r16, 8 - -sendTo164Loop: - cbi PORTB, DATA - sbrc r20, 7 ; if leftmost bit isn't cleared, set DATA high - sbi PORTB, DATA - ; toggle CP - cbi PORTB, CP - lsl r20 - sbi PORTB, CP - dec r16 - brne sendTo164Loop ; not zero yet? loop - - ; release PS/2 - cbi DDRB, DATA - sei - - ; Reset the latch to indicate that the next number is ready - sbi PORTB, LR - cbi PORTB, LR - rjmp loop - -resetTimer: - ldi r16, TIMER_INITVAL - out TCNT0, r16 - ldi r16, 0x02 ; TOV0 - out TIFR, r16 - ret - -; Send the value of r19 to the PS/2 keyboard -sendToPS2: - cli - - ; First, indicate our request to send by holding both Clock low for - ; 100us, then pull Data low - ; lines low for 100us. - cbi PORTB, CLK - sbi DDRB, CLK - rcall resetTimer - - ; Wait until the timer overflows - in r16, TIFR - sbrs r16, 1 ; TOV0 - rjmp $-4 - ; Good, 100us passed. - - ; Pull Data low, that's our start bit. - cbi PORTB, DATA - sbi DDRB, DATA - - ; Now, let's release the clock. At the next raising edge, we'll be - ; expected to have set up our first bit (LSB). We set up when CLK is - ; low. - cbi DDRB, CLK ; Should be starting high now. - - ; We will do the next loop 8 times - ldi r16, 8 - ; Let's remember initial r19 for parity - mov r1, r19 - -sendToPS2Loop: - ; Wait for CLK to go low - sbic PINB, CLK - rjmp $-2 - - ; set up DATA - cbi PORTB, DATA - sbrc r19, 0 ; skip if LSB is clear - sbi PORTB, DATA - lsr r19 - - ; Wait for CLK to go high - sbis PINB, CLK - rjmp $-2 - - dec r16 - brne sendToPS2Loop ; not zero? loop - - ; Data was sent, CLK is high. Let's send parity - mov r19, r1 ; recall saved value - rcall checkParity ; --> r16 - - ; Wait for CLK to go low - sbic PINB, CLK - rjmp $-2 - - ; set parity bit - cbi PORTB, DATA - sbrc r16, 0 ; parity bit in r16 - sbi PORTB, DATA - - ; Wait for CLK to go high - sbis PINB, CLK - rjmp $-2 - - ; Wait for CLK to go low - sbic PINB, CLK - rjmp $-2 - - ; We can now release the DATA line - cbi DDRB, DATA - - ; Wait for DATA to go low. That's our ACK - sbic PINB, DATA - rjmp $-2 - - ; Wait for CLK to go low - sbic PINB, CLK - rjmp $-2 - - ; We're finished! Enable INT0, reset timer, everything back to normal! - rcall resetTimer - clt ; also, make sure T isn't mistakely set. - sei - ret - -; Check that Y is within bounds, reset to SRAM_START if not. -checkBoundsY: - tst YL - breq $+4 - ret ; not zero, nothing to do - ; YL is zero. Reset Y - clr YH - ldi YL, SRAM_START&0xff - ret - -; Check that Z is within bounds, reset to SRAM_START if not. -checkBoundsZ: - tst ZL - breq $+4 - ret ; not zero, nothing to do - ; ZL is zero. Reset Z - clr ZH - ldi ZL, SRAM_START&0xff - ret - -; Counts the number of 1s in r19 and set r16 to 1 if there's an even number of -; 1s, 0 if they're odd. -checkParity: - ldi r16, 1 - lsr r19 - brcc $+4 ; Carry unset? skip next - inc r16 ; Carry set? We had a 1 - tst r19 ; is r19 zero yet? - brne checkParity+2 ; no? loop and skip first LDI - andi r16, 0x1 ; Sets Z accordingly - ret - diff --git a/recipes/sms/romasm/.gitignore b/recipes/sms/romasm/.gitignore deleted file mode 100644 index 2e334fc..0000000 --- a/recipes/sms/romasm/.gitignore +++ /dev/null @@ -1 +0,0 @@ -user.h diff --git a/recipes/sms/romasm/Makefile b/recipes/sms/romasm/Makefile deleted file mode 100644 index 5bcad39..0000000 --- a/recipes/sms/romasm/Makefile +++ /dev/null @@ -1,21 +0,0 @@ -BASEDIR = ../../.. -ZASM = $(BASEDIR)/emul/zasm/zasm -KERNEL = $(BASEDIR)/kernel -APPS = $(BASEDIR)/apps - -.PHONY: all clean -all: os.sms - -# -o value synced with offset in glue.asm -ed.bin: $(APPS)/ed/glue.asm - $(ZASM) -o 1f $(KERNEL) $(APPS) user.h < $(APPS)/ed/glue.asm > $@ - -# -o value synced with offset in glue.asm -zasm.bin: $(APPS)/zasm/glue.asm - $(ZASM) -o 24 $(KERNEL) $(APPS) user.h < $(APPS)/zasm/glue.asm > $@ - -os.sms: glue.asm ed.bin zasm.bin - $(ZASM) $(KERNEL) $(APPS) ed.bin zasm.bin < glue.asm > $@ - -clean: - rm -f os.sms ed.bin zasm.bin diff --git a/recipes/sms/romasm/README.md b/recipes/sms/romasm/README.md deleted file mode 100644 index 5918ed4..0000000 --- a/recipes/sms/romasm/README.md +++ /dev/null @@ -1,61 +0,0 @@ -# zasm and ed from ROM - -SMS' RAM is much tighter than in the RC2014, which makes the idea of loading -apps like zasm and ed in memory before using it a bit wasteful. In this recipe, -we'll include zasm and ed code directly in the kernel and expose them as shell -commands. - -Moreover, we'll carve ourselves a little 1K memory map to put a filesystem in -there. This will give us a nice little system that can edit small source files -compile them and run them. - -## Gathering parts - -* A SMS that can run Collapse OS. -* A [PS/2 keyboard adapter](../kbd/README.md) - -## Build - -There's nothing special with building this recipe. Like the base recipe, run -`make` then copy `os.sms` to your destination medium. - -If you look at the makefile, however, you'll see that we use a new trick here: -we embed "apps" binaries directly in our ROM so that we don't have to load them -in memory. - -## Usage - -Alright, here's what we'll do: we'll author a source file, assemble it and run -it, *all* on your SMS! Commands: - - Collapse OS - > fnew 1 src - > ed src - : 1i - .org 0xc200 - : 1a - ld hl, sFoo - : 2a - call 0x3f - : 3a - xor a - : 4a - ret - : 5a - sFoo: .db "foo", 0 - : w - > fnew 1 dest - > fopn 0 src - > fopn 1 dest - > zasm 1 2 - First pass - Second pass - > dest - foo> - -Awesome right? Some precisions: - -* Our glue code specifies a `USER_RAMSTART` of `0xc200`. This is where - `dest` is loaded by the `pgm` shell hook. -* `0x3f` is the offset of `printstr` in the jump table of our glue code. -* `xor a` is for the command to report as successful to the shell. diff --git a/recipes/sms/romasm/glue.asm b/recipes/sms/romasm/glue.asm deleted file mode 100644 index 94b0a47..0000000 --- a/recipes/sms/romasm/glue.asm +++ /dev/null @@ -1,187 +0,0 @@ -; TODO: This recipe has not been tested since its conversion to the BASIC shell. -; My PS/2 adapter has been acting up and probably has a loose wire. I need to -; fix it beore I can test this recipe on real hardware. -; But theoretically, it works... - -; 8K of onboard RAM -.equ RAMSTART 0xc000 -.equ USER_CODE 0xd500 -; Memory register at the end of RAM. Must not overwrite -.equ RAMEND 0xddd0 - - jp init - -; *** JUMP TABLE *** - jp strncmp - jp upcase - jp findchar - jp parseHex - jp blkSel - jp blkSet - jp fsFindFN - jp fsOpen - jp fsGetB - jp fsPutB - jp fsSetSize - jp printstr - jp _blkGetB - jp _blkPutB - jp _blkSeek - jp _blkTell - jp printcrlf - jp stdioPutC - jp stdioReadLine - -.fill 0x66-$ - retn - -.inc "err.h" -.inc "ascii.h" -.inc "blkdev.h" -.inc "fs.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 -.equ GRID_GETC kbdGetC -.inc "grid.asm" - -.equ STDIO_RAMSTART GRID_RAMEND -.equ STDIO_GETC gridGetC -.equ STDIO_PUTC gridPutC -.inc "stdio.asm" - -.equ MMAP_START 0xd700 -; 0x180 is to leave some space for the stack -.equ MMAP_LEN RAMEND-MMAP_START-0x180 -.inc "mmap.asm" - -.equ BLOCKDEV_RAMSTART STDIO_RAMEND -.equ BLOCKDEV_COUNT 3 -.inc "blockdev.asm" -; List of devices -.dw mmapGetB, mmapPutB -.dw f0GetB, f0PutB -.dw f1GetB, f1PutB - - -.equ FS_RAMSTART BLOCKDEV_RAMEND -.equ FS_HANDLE_COUNT 2 -.inc "fs.asm" - -; *** BASIC *** - -; RAM space used in different routines for short term processing. -.equ SCRATCHPAD_SIZE STDIO_BUFSIZE -.equ SCRATCHPAD FS_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 BFS_RAMSTART BUF_RAMEND -.inc "basic/fs.asm" -.inc "basic/blk.asm" -.equ BAS_RAMSTART BFS_RAMEND -.inc "basic/main.asm" - -; USER_CODE is set according to this output below. -.out BAS_RAMEND - -init: - di - im 1 - - ld sp, RAMEND - - ; init a FS in mmap - ld hl, MMAP_START - ld a, 'C' - ld (hl), a - inc hl - ld a, 'F' - ld (hl), a - inc hl - ld a, 'S' - ld (hl), a - - call fsInit - xor a - ld de, BLOCKDEV_SEL - call blkSel - call fsOn - - call kbdInit - call gridInit - call vdpInit - - call basInit - ld hl, basFindCmdExtra - ld (BAS_FINDHOOK), hl - jp basStart - -basFindCmdExtra: - ld hl, basFSCmds - call basFindCmd - ret z - ld hl, basBLKCmds - call basFindCmd - ret z - ld hl, .mycmds - call basFindCmd - ret z - jp basPgmHook -.mycmds: - .db "ed", 0 - .dw 0x1f00 - .db "zasm", 0 - .dw 0x2400 - .db 0xff - -f0GetB: - ld ix, FS_HANDLES - jp fsGetB - -f0PutB: - ld ix, FS_HANDLES - jp fsPutB - -f1GetB: - ld ix, FS_HANDLES+FS_HANDLE_SIZE - jp fsGetB - -f1PutB: - ld ix, FS_HANDLES+FS_HANDLE_SIZE - jp fsPutB - -; last time I checked, PC at this point was 0x128f. Let's give us a nice margin -; for the start of ed. -.fill 0x1f00-$ -.bin "ed.bin" - -; Last check: 0x23b0 -.fill 0x2400-$ -.bin "zasm.bin" - -FNT_DATA: -.bin "fnt/7x7.bin" - -.fill 0x7ff0-$ -.db "TMR SEGA", 0x00, 0x00, 0xfb, 0x68, 0x00, 0x00, 0x00, 0x4c diff --git a/recipes/sms/romasm/user.h b/recipes/sms/romasm/user.h deleted file mode 100644 index ff4456b..0000000 --- a/recipes/sms/romasm/user.h +++ /dev/null @@ -1,32 +0,0 @@ -.equ USER_CODE 0xc200 -; Make ed fit in SMS's memory -.equ ED_BUF_MAXLINES 0x100 -.equ ED_BUF_PADMAXLEN 0x800 - -; Make zasm fit in SMS's memory -.equ ZASM_REG_MAXCNT 0x80 -.equ ZASM_LREG_MAXCNT 0x10 -.equ ZASM_REG_BUFSZ 0x800 -.equ ZASM_LREG_BUFSZ 0x100 - -; *** JUMP TABLE *** -.equ strncmp 0x03 -.equ upcase @+3 -.equ findchar @+3 -.equ parseHex @+3 -.equ blkSel @+3 -.equ blkSet @+3 -.equ fsFindFN @+3 -.equ fsOpen @+3 -.equ fsGetB @+3 -.equ fsPutB @+3 -.equ fsSetSize @+3 -.equ printstr @+3 -.equ _blkGetB @+3 -.equ _blkPutB @+3 -.equ _blkSeek @+3 -.equ _blkTell @+3 -.equ printcrlf @+3 -.equ stdioPutC @+3 -.equ stdioReadLine @+3 -