tests: add test_sdc

The SD card driver is a bit too slow to be bearable. I'll write
_crc16 in z80 and see how it goes.

blk/061

@@ -1,6 +1,6 @@
-(cont.)
 ." xxx" --     *I* Compiles string literal xxx followed by a
                call to (print).
+C<?     -- f   Returns whether there's a char waiting in buf.
 C<      -- c   Read one char from buffered input.
 DUMP    n a -- Prints n bytes at addr a in a hexdump format.
                Prints in chunks of 8 bytes. Doesn't do partial

blk/081

@@ -2,10 +2,10 @@
 RAMSTART  INITIAL_SP    +53       readln's variables
 +02       CURRENT       +55       adev's variables
 +04       HERE          +57       blk's variables
-+06       FUTURE USES   +59       z80a's variables
-+08       FLAGS         +5b       FUTURE USES
++06       C<?*          +59       z80a's variables
++08       C<* override  +5b       FUTURE USES
 +0a       PARSEPTR      +70       DRIVERS
-+0c       CINPTR        +80       RAMEND
++0c       C<*           +80       RAMEND
 +0e       WORDBUF
 +2e       BOOT C< PTR
 +4e       INTJUMP

blk/082

@@ -1,4 +1,4 @@
-(cont.) INITIAL_SP holds the initial Stack Pointer value so
+INITIAL_SP holds the initial Stack Pointer value so
 that we know where to reset it on ABORT
 
 CURRENT points to the last dict entry.
@@ -7,10 +7,10 @@ HERE points to current write offset.
 
 IP is the Interpreter Pointer
 
-FLAGS holds global flags. Only used for prompt output control
-for now.
-
 PARSEPTR holds routine address called on (parse)
 
-CINPTR holds routine address called on C<
+C<* holds routine address called on C<. If the C<* override
+at 0x08 is nonzero, this routine is called instead.
+
+
                                                         (cont.)

blk/083

@@ -1,4 +1,7 @@
-(cont.) WORDBUF is the buffer used by WORD
+C<?* is a pointer to a word being called by C<?. If 0 or 1,
+will return that value as-is.
+
+WORDBUF is the buffer used by WORD
 
 BOOT C< PTR is used when Forth boots from in-memory
 source. See "Initialization sequence" below.
@@ -9,8 +12,5 @@ jump to this address. If you use one of those slots for an
 interrupt, write a jump to the appropriate offset in that RAM
 location.
 
-CURRENTPTR points to current CURRENT. The Forth CURRENT word
-doesn't return RAM+2 directly, but rather the value at this
-address. Most of the time, it points to RAM+2, but sometimes,
-when maintaining alternative dicts (during cross compilation
-for example), it can point elsewhere.                   (cont.)
+
+                                                        (cont.)

blk/084

@@ -1,4 +1,10 @@
-(cont.) FUTURE USES section is unused for now.          
+CURRENTPTR points to current CURRENT. The Forth CURRENT word
+doesn't return RAM+2 directly, but rather the value at this
+address. Most of the time, it points to RAM+2, but sometimes,
+when maintaining alternative dicts (during cross compilation
+for example), it can point elsewhere.
+
+FUTURE USES section is unused for now.          
 
 DRIVERS section is reserved for recipe-specific
 drivers. Here is a list of known usages:
@@ -8,9 +14,3 @@ drivers. Here is a list of known usages:
 
 
 
-
-
-
-
-
-

blk/380

@@ -1,16 +1,16 @@
 : _err _sdcDesel ABORT" SDerr" ;
 
-( Initialize a SD card. This should be called at least 1ms
-  after the powering up of the card. )
-: SDC$
-( Wake the SD card up. After power up, a SD card has to receive
-  at least 74 dummy clocks with CS and DI high. We send 80. )
-    10 0 DO _idle DROP LOOP
-    ( call cmd0 and expect a 0x01 response (card idle)
-	  this should be called multiple times. we're actually
-      expected to. let's call this for a maximum of 10 times. )
-    0 ( dummy )
-    10 0 DO  ( r )
-        DROP 0x40 0 0 SDCMDR1  ( CMD0 )
-        DUP 0x01 = IF LEAVE THEN
-    LOOP 0x01 = NOT IF _err THEN                      ( cont. )
+( Tight definition ahead, pre-comment.
+
+  Initialize a SD card. This should be called at least 1ms
+  after the powering up of the card. We begin by waking up the
+  SD card. After power up, a SD card has to receive at least
+  74 dummy clocks with CS and DI high. We send 80.
+  Then send cmd0 for a maximum of 10 times, success is when
+  we get 0x01. Then comes the CMD8. We send it with a 0x01aa
+  argument and expect a 0x01aa argument back, along with a
+  0x01 R1 response. After that, we need to repeatedly run
+  CMD55+CMD41 (0x40000000) until the card goes out of idle
+  mode, that is, when it stops sending us 0x01 response and
+  send us 0x00 instead. Any other response means that
+  initialization failed. )

blk/381

@@ -1,10 +1,16 @@
-( Then comes the CMD8. We send it with a 0x01aa argument and
-  expect a 0x01aa argument back, along with a 0x01 R1
-  response. )
-    0x48 0 0x1aa  ( CMD8 )
-    SDCMDR7                     ( r arg1 arg2 )
-    0x1aa = NOT IF _err THEN    ( arg2 check )
-    0 = NOT IF _err THEN        ( arg1 check )
-    0x01 = NOT IF _err THEN     ( r check )
-
-                                                      ( cont. )
+: SDC$
+    10 0 DO _idle DROP LOOP
+    0 ( dummy ) 10 0 DO  ( r )
+        DROP 0x40 0 0 SDCMDR1  ( CMD0 )
+        DUP 0x01 = IF LEAVE THEN
+    LOOP 0x01 = NOT IF _err THEN
+    0x48 0 0x1aa ( CMD8 ) SDCMDR7 ( r arg1 arg2 )
+    0x1aa = NOT IF _err THEN      ( arg2 check )
+    0 = NOT IF _err THEN          ( arg1 check )
+    0x01 = NOT IF _err THEN       ( r check )
+    BEGIN
+        0x77 0 0 SDCMDR1  ( CMD55 )
+        0x01 = NOT IF _err THEN
+        0x69 0x4000 0x0000 SDCMDR1  ( CMD41 )
+        DUP 0x01 > IF _err THEN
+    NOT UNTIL ; ( out of idle mode, success! )

blk/382

@@ -1,13 +0,0 @@
-( Now we need to repeatedly run CMD55+CMD41 (0x40000000)
-  until the card goes out of idle mode, that is, when it stops
-  sending us 0x01 response and send us 0x00 instead. Any other
-  response means that initialization failed. )
-    BEGIN
-        0x77 0 0 SDCMDR1  ( CMD55 )
-        0x01 = NOT IF _err THEN
-        0x69 0x4000 0x0000 SDCMDR1  ( CMD41 )
-        DUP 0x01 > IF _err THEN
-    NOT UNTIL
-    ( Out of idle mode! Success! )
-;
-

blk/393

@@ -1,5 +1,4 @@
 : RAM+ [ RAMSTART LITN ] + ;
-: FLAGS 0x08 RAM+ ;
 : (parse*) 0x0a RAM+ ;
 : HERE 0x04 RAM+ ;
 : CURRENT* 0x51 RAM+ ;
@@ -9,7 +8,8 @@
 : (find) CURRENT @ SWAP _find ;
 
 : QUIT
-    0 FLAGS ! (resRS)
+    (resRS)
+    0 0x08 RAM+ !  ( 08 == C<* override )
     LIT< INTERPRET (find) DROP EXECUTE
 ;
 394 407 LOADR

blk/398

@@ -2,7 +2,12 @@
   for an abort message )
 : (parse) (parsed) NOT IF ABORT THEN ;
 
-: C< 0x0c RAM+ @ EXECUTE ( 0c == CINPTR ) ;
+: C<? 0x06 RAM+ @ DUP 2 > IF EXECUTE THEN ( 06 == C<?* ) ;
+: C<
+    0x08 RAM+ @  ( 08 == C<* override )
+    DUP NOT IF DROP 0x0c RAM+ @ THEN  ( 0c == C<* )
+    EXECUTE
+;
 
 : , HERE @ ! HERE @ 2+ HERE ! ;
 

blk/403

@@ -2,13 +2,8 @@
     BEGIN
     WORD
     (find)
-    IF
-        1 FLAGS !
-        EXECUTE
-        0 FLAGS !
-    ELSE
-        (parse*) @ EXECUTE
-    THEN
+    NOT IF (parse*) @ THEN EXECUTE
+    C<? NOT IF LIT< (ok) (find) IF EXECUTE THEN THEN
     AGAIN
 ;
 

blk/405

@@ -3,8 +3,11 @@
     LIT< (parse) (find) DROP (parse*) !
     ( 2e == SYSTEM SCRATCHPAD )
     CURRENT @ 0x2e RAM+ !
-    ( 0c == CINPTR )
+    0 0x08 RAM+ !  ( 08 == C<* override )
+    ( 0c == C<* )
     LIT< (boot<) (find) DROP 0x0c RAM+ !
+    ( boot< always has a char waiting. 06 == C<?* )
+    1 0x06 RAM+ !
     LIT< INIT (find)
     IF EXECUTE
     ELSE DROP INTERPRET THEN

emul/.gitignore

@@ -1,7 +1,8 @@
-/forth/stage1
-/forth/stage1dbg
-/forth/stage2
-/forth/forth
-/*/*-bin.h
-/*/*.bin
+/stage1
+/stage1dbg
+/stage2
+/forth
+/*-bin.h
+/core.bin
+/forth?.bin
 /blkfs

emul/Makefile

@@ -1,7 +1,7 @@
-TARGETS = forth/forth forth/stage2
+TARGETS = forth stage2
 # Those Forth source files are in a particular order
 FORTHSRCS = core.fs cmp.fs print.fs parse.fs readln.fs fmt.fs blk.fs
-FORTHSRC_PATHS = ${FORTHSRCS:%=../forth/%} forth/run.fs
+FORTHSRC_PATHS = ${FORTHSRCS:%=../forth/%} run.fs
 OBJS = emul.o libz80/libz80.o
 SLATEST = ../tools/slatest
 STRIPFC = ../tools/stripfc
@@ -23,43 +23,43 @@ $(BLKUNPACK): $(BLKPACK)
 
 # z80c.bin is not in the prerequisites because it's a bootstrap
 # binary that should be updated manually through make updatebootstrap.
-forth/forth0.bin: $(SLATEST)
-	cp forth/z80c.bin $@
+forth0.bin: $(SLATEST)
+	cp z80c.bin $@
 	$(SLATEST) $@
-	cat forth/pre.fs forth/emul.fs >> $@
+	cat pre.fs emul.fs >> $@
 
-forth/forth0-bin.h: forth/forth0.bin $(BIN2C)
-	$(BIN2C) KERNEL < forth/forth0.bin | tee $@ > /dev/null
+forth0-bin.h: forth0.bin $(BIN2C)
+	$(BIN2C) KERNEL < forth0.bin | tee $@ > /dev/null
 
-forth/stage1: forth/stage.c $(OBJS) forth/forth0-bin.h 
-	$(CC) forth/stage.c $(OBJS) -o $@
+stage1: stage.c $(OBJS) forth0-bin.h 
+	$(CC) stage.c $(OBJS) -o $@
 
-forth/stage1dbg: forth/stage.c $(OBJS) forth/forth0-bin.h 
-	$(CC) -DDEBUG forth/stage.c $(OBJS) -o $@
+stage1dbg: stage.c $(OBJS) forth0-bin.h 
+	$(CC) -DDEBUG stage.c $(OBJS) -o $@
 
 # We don't really need to use stripfc, but we do it anyway to test that we
 # don't mistakenly break our code with that tool. It's easier to debug here.
-forth/core.bin: $(FORTHSRC_PATHS) forth/stage1
-	cat $(FORTHSRC_PATHS) ./forth/stop.fs | $(STRIPFC) | ./forth/stage1 > $@
+core.bin: $(FORTHSRC_PATHS) stage1
+	cat $(FORTHSRC_PATHS) stop.fs | $(STRIPFC) | ./stage1 > $@
 
-forth/forth1.bin: forth/core.bin $(SLATEST)
-	cat forth/z80c.bin forth/core.bin > $@
+forth1.bin: core.bin $(SLATEST)
+	cat z80c.bin core.bin > $@
 	$(SLATEST) $@
 
-forth/forth1-bin.h: forth/forth1.bin $(BIN2C)
-	$(BIN2C) KERNEL < forth/forth1.bin > $@
+forth1-bin.h: forth1.bin $(BIN2C)
+	$(BIN2C) KERNEL < forth1.bin > $@
 
-forth/stage2: forth/stage.c $(OBJS) forth/forth1-bin.h forth/blkfs-bin.h
-	$(CC) -DSTAGE2 forth/stage.c $(OBJS) -o $@
+stage2: stage.c $(OBJS) forth1-bin.h blkfs-bin.h
+	$(CC) -DSTAGE2 stage.c $(OBJS) -o $@
 
 blkfs: $(BLKPACK)
 	$(BLKPACK) ../blk > $@
 
-forth/blkfs-bin.h: blkfs $(BIN2C)
+blkfs-bin.h: blkfs $(BIN2C)
 	$(BIN2C) BLKFS < blkfs > $@
 
-forth/forth: forth/forth.c $(OBJS) forth/forth1-bin.h blkfs
-	$(CC) forth/forth.c $(OBJS) -o $@
+forth: forth.c $(OBJS) forth1-bin.h blkfs-bin.h
+	$(CC) forth.c $(OBJS) -o $@
 
 libz80/libz80.o: libz80/z80.c
 	$(MAKE) -C libz80/codegen opcodes
@@ -70,8 +70,8 @@ emul.o: emul.c
 
 
 .PHONY: updatebootstrap
-updatebootstrap: forth/stage2
-	cat ./forth/xcomp.fs | ./forth/stage2 > ./forth/z80c.bin
+updatebootstrap: stage2
+	cat xcomp.fs | ./stage2 > z80c.bin
 
 .PHONY: pack
 pack:
@@ -83,5 +83,5 @@ unpack:
 
 .PHONY: clean
 clean:
-	rm -f $(TARGETS) emul.o forth/*-bin.h forth/forth?.bin blkfs
+	rm -f $(TARGETS) emul.o *-bin.h forth?.bin blkfs
 	$(MAKE) -C ../tools clean

emul/forth.c

@@ -2,8 +2,9 @@
 #include <stdio.h>
 #include <unistd.h>
 #include <termios.h>
-#include "../emul.h"
+#include "emul.h"
 #include "forth1-bin.h"
+#include "blkfs-bin.h"
 
 // in sync with glue.asm
 #define RAMSTART 0x900
@@ -102,6 +103,12 @@ int main(int argc, char *argv[])
         return 1;
     }
     blkfp = fopen("blkfs", "r+");
+    if (blkfp) {
+        fprintf(stderr, "Using blkfs file\n");
+    } else {
+        blkfp = fmemopen((char*)BLKFS, sizeof(BLKFS), "r");
+        fprintf(stderr, "Using in-memory read-only blkfs\n");
+    }
     Machine *m = emul_init();
     m->ramstart = RAMSTART;
     m->iord[STDIO_PORT] = iord_stdio;

emul/run.fs

@@ -19,5 +19,6 @@
     ['] EFS! BLK!* !
     RDLN$
     LIT< _sys [entry]
+    ." Collapse OS" CRLF
     INTERPRET
 ;

emul/stage.c

@@ -1,7 +1,7 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <unistd.h>
-#include "../emul.h"
+#include "emul.h"
 #ifdef STAGE2
 #include "forth1-bin.h"
 #include "blkfs-bin.h"

forth/blk.fs

@@ -61,28 +61,28 @@
 ;
 
 : LOAD
-    ( save BLK>, CINPTR and boot< ptr to RSP )
+    ( save BLK>, C<* override and boot< ptr to RSP )
     BLK> @ >R
-    0x0c RAM+ @ >R
+    0x08 RAM+ @ >R
     0x2e RAM+ @ >R
     BLK@
     ( Point to beginning of BLK )
     BLK( 0x2e RAM+ !
-    ( 0c == CINPTR )
-    ['] _ 0x0c RAM+ !
+    ( 08 == C<* override )
+    ['] _ 0x08 RAM+ !
     INTERPRET
     R> 0x2e RAM+ !
-    ( Before we restore CINPTR, are we restoring it to "_"?
+    ( Before we restore C<* are we restoring it to "_"?
       if yes, it means we're in a nested LOAD which means we
       should also load back the saved BLK>. Otherwise, we can
       ignore the BLK> from RSP. )
-    I 0x0c RAM+ @ = IF
+    I 0x08 RAM+ @ = IF
         ( nested load )
-        R> DROP ( CINPTR )
+        R> DROP ( C<* )
         R> BLK@
     ELSE
         ( not nested )
-        R> 0x0c RAM+ !
+        R> 0x08 RAM+ !
         R> DROP ( BLK> )
     THEN
 ;

forth/core.fs

@@ -3,7 +3,7 @@
     CURRENT @ 1-
     DUP C@ 128 OR SWAP C!
 ;
-: [ INTERPRET 1 FLAGS ! ; IMMEDIATE
+: [ INTERPRET ; IMMEDIATE
 : ] R> DROP ;
 : LITS 34 , SCPY ;
 : LIT< WORD LITS ; IMMEDIATE

forth/print.fs

@@ -26,10 +26,12 @@
 : ABORT" [COMPILE] ." COMPILE ABORT ; IMMEDIATE
 
 : (uflw) ABORT" stack underflow" ;
-: (wnf) ABORT" word not found" ;
 
 : BS 8 EMIT ;
 : LF 10 EMIT ;
 : CR 13 EMIT ;
 : CRLF CR LF ;
 : SPC 32 EMIT ;
+
+: (wnf) (print) SPC ABORT" word not found" ;
+: (ok) SPC ." ok" CRLF ;

forth/readln.fs

@@ -54,17 +54,16 @@
 
 ( Read one line in input buffer and make IN> point to it )
 : (rdln)
-    ( Should we prompt? if we're executing a word, FLAGS bit
-      0, then we shouldn't. )
-    FLAGS @ 0x1 AND NOT IF '>' EMIT SPC THEN
     (infl)
     BEGIN (rdlnc) NOT UNTIL
     LF IN( IN> !
 ;
 
+: RDLN<? IN> @ C@ ;
+
 ( And finally, implement a replacement for the (c<) routine )
-: (rdln<)
-    IN> @ C@                    ( c )
+: RDLN<
+    RDLN<?                      ( c )
     ( not EOL? good, inc and return )
     DUP IF 1 IN> +! EXIT THEN   ( c )
     ( EOL ? readline. we still return typed char though )
@@ -79,6 +78,7 @@
       the last typed 0x0a and one for the following NULL. )
     INBUFSZ 4 + ALLOT
     (infl)
-    ['] (rdln<) 0x0c RAM+ !
+    ['] RDLN<? 0x06 RAM+ !
+    ['] RDLN< 0x0c RAM+ !
 ;
 

recipes/rc2014/Makefile

@@ -1,7 +1,7 @@
 TARGET = stage1.bin
 BASEDIR = ../..
 FDIR = $(BASEDIR)/forth
-EDIR = $(BASEDIR)/emul/forth
+EDIR = $(BASEDIR)/emul
 STAGE2 = $(EDIR)/stage2
 EMUL = $(BASEDIR)/emul/hw/rc2014/classic
 
@@ -36,4 +36,3 @@ $(EMUL):
 .PHONY: emul
 emul: $(EMUL) $(TARGET)
 	$(EMUL) $(TARGET)
-	

recipes/rc2014/run.fs

@@ -1,9 +1,7 @@
 : (c<) KEY DUP EMIT ;
-: INIT
+: _
     ACIA$
     ." Collapse OS" CRLF
     ( 0c == CINPTR )
     ['] (c<) 0x0c RAM+ !
-;
-INIT
-
+; _

recipes/rc2014/zasm/.gitignore

@@ -1,2 +0,0 @@
-/cfsin/zasm
-/cfsin/user.h

recipes/rc2014/zasm/Makefile

@@ -1,30 +0,0 @@
-SHELLAPPS = zasm sdct memt at28w
-APPTARGETS = ${SHELLAPPS:%=cfsin/%} 
-CFSTARGETS = $(APPTARGETS) cfsin/user.h
-BASEDIR = ../../..
-ZASM = $(BASEDIR)/emul/zasm/zasm
-KERNEL = $(BASEDIR)/kernel
-APPS = $(BASEDIR)/apps
-CFSPACK = $(BASEDIR)/tools/cfspack/cfspack
-
-.PHONY: all
-all: os.bin sdcard.cfs
-
-os.bin: glue.asm
-	$(ZASM) $(KERNEL) $(APPS) < glue.asm > $@
-
-$(CFSPACK):
-	make -C $(BASEDIR)/tools/cfspack
-
-sdcard.cfs: $(CFSTARGETS) $(CFSPACK)
-	$(CFSPACK) cfsin > $@
-
-$(APPTARGETS): $(ZASMBIN)
-	$(ZASM) $(KERNEL) $(APPS) user.h < $(APPS)/${@:cfsin/%=%}/glue.asm > $@
-
-cfsin/user.h: user.h
-	cp user.h $@
-
-.PHONY: clean
-clean:
-	rm -f $(CFSTARGETS) sdcard.cfs os.bin

recipes/rc2014/zasm/README.md

@@ -1,109 +0,0 @@
-# Assembling binaries
-
-For a system to be able to self-reproduce, it needs to assemble source z80
-assembly to binary.
-
-## Goals
-
-Have a RC2014 assemble a Collapse OS kernel with its source living on a CFS on
-a SD card.
-
-## Gathering parts
-
-* Same parts as the [SD card recipe](../sdcard).
-
-## The zasm binary
-
-To achieve our goal in this recipe, we'll need a zasm binary on the SD card.
-This zasm binary needs to be compiled with the right jump offsets for the kernel
-we build in this recipe. These offsets are in `user.h` and are closely in sync
-with the configuration in `glue.asm`.
-
-`user.h` is then included in `apps/zasm/glue.asm`.
-
-The makefile in this recipe takes care of compiling zasm with the proper
-`user.h` file and place it in `cfsin/zasm`
-
-## The userland source
-
-The code we're going to compile is `cfsin/hello.asm`. As you can see, we also
-include `user.h` in this source code or else `ld hl, sAwesome` would load the
-wrong offset.
-
-Because of this, the Makefile takes care of copying `user.h` in our filesystem.
-
-## Preparing the card and kernel
-
-After running `make`, you'll end up with `sdcard.cfs` which you can load the
-same way you did in the SD card recipe.
-
-You will also have `os.bin`, which you can flash on your EEPROM the same way
-you already did before.
-
-## Running it
-
-Compiling and running `hello.asm` is done very much like in
-[the shell emulator](../../../doc/zasm.md):
-
-    Collapse OS
-    > sdci
-    > fson
-    > fopen 0 hello.asm
-    > fnew 1 dest
-    > fopen 1 dest
-    > zasm 1 2
-    > dest
-    Assembled from a RC2014
-    >
-
-That RC2014 is starting to feel powerful now, right?
-
-## Test your hardware
-
-Now that you have a fully functional filesystem that can load programs and run
-them easily, you'll see that this recipe's CFS include a couple of programs
-besides `zasm`. Among them, there's `sdct` that stress tests reading and
-writing on the SD card and `memt` that stress tests RAM. You might be
-interested in running them. Look at their description in `apps/`. All you need
-to to do run them is to type their name.
-
-## Assembling the kernel
-
-Now let's go for something a little more fun! Jiu-jitsu? No, you're not going to
-learn jiu-jitsu! You're going to assemble the kernel from within your RC2014!
-
-The makefile doesn't prepare a CFS blob for this, let's learn to build that blob
-yourself. First of all, we'll need to have what we already had in `sdcard.cfs`
-because it has `zasm` and `user.h`. But we're going to add the contents of
-the `/kernel/` directory to it.
-
-    $ cp ../../../kernel/*.{h,asm} cfsin
-
-You'll also need your glue file:
-
-    $ cp glue.asm cfsin
-
-You're now ready to re-make your CFS:
-
-    $ rm sdcard.cfs && make
-
-Now you can write this into your card and boot Collapse OS:
-
-    Collapse OS
-    > sdci
-    > fson
-    > fopn 0 glue.asm
-    > fnew 10 dest
-    > fopen 1 dest
-    > zasm 1 2          # This takes a while. About 7 minutes.
-    > sdcf              # success! sdcf flushes SD card buffers to the card.
-
-Now let's go verify that we assembled the right thing. Pop out the card and
-plug it in your "modern" computer. Pipe the device directly through `cfsunpack`
-to unpack the FS into a directory (it will stop reading when it stops seeing
-CFS blocks):
-
-    $ sudo cat /dev/sdX | ../../../tools/cfspack/cfsunpack cfsout
-    $ cmp cfsout/dest ../os.bin
-
-They're the same! Your RC2014 assembled a full Collapse OS kernel all by itself!

recipes/rc2014/zasm/cfsin/hello.asm

@@ -1,10 +0,0 @@
-.inc "user.h"
-
-	ld	hl, sAwesome
-	call	printstr
-	xor	a		; success
-	ret
-
-sAwesome:
-	.db	"Assembled from a RC2014", 0x0d, 0x0a, 0
-

recipes/rc2014/zasm/glue.asm

@@ -1,151 +0,0 @@
-; classic RC2014 setup (8K ROM + 32K RAM) and a stock Serial I/O module
-; The RAM module is selected on A15, so it has the range 0x8000-0xffff
-.equ	RAMSTART	0x8000
-; Kernel RAMEND last check: 0x9933
-; We allocate at least 0x100 bytes for the stack, which is why we have this
-; threshold.
-.equ	RAMEND		0x9b00
-.equ	USER_CODE	RAMEND  ; in sync with user.h
-.equ	ACIA_CTL	0x80	; Control and status. RS off.
-.equ	ACIA_IO		0x81	; Transmit. RS on.
-
-	jp	init	; 3 bytes
-
-; *** Jump Table ***
-	jp	strncmp
-	jp	upcase
-	jp	findchar
-	jp	blkSel
-	jp	blkSet
-	jp	fsFindFN
-	jp	fsOpen
-	jp	fsGetB
-	jp	printstr
-	jp	printcrlf
-	jp	_blkGetB
-	jp	_blkPutB
-	jp	_blkSeek
-	jp	_blkTell
-	jp	sdcGetB
-	jp	sdcPutB
-	jp	blkGetB
-
-; interrupt hook
-.fill	0x38-$
-jp	aciaInt
-
-; *** cont. ***
-
-	jp	stdioPutC
-
-.inc "err.h"
-.inc "ascii.h"
-.inc "blkdev.h"
-.inc "fs.h"
-.inc "core.asm"
-.inc "str.asm"
-.equ	ACIA_RAMSTART		RAMSTART
-.inc "acia.asm"
-.equ	BLOCKDEV_RAMSTART	ACIA_RAMEND
-.equ	BLOCKDEV_COUNT		4
-.inc "blockdev.asm"
-; List of devices
-.dw	sdcGetB, sdcPutB
-.dw	blk1GetB, blk1PutB
-.dw	blk2GetB, blk2PutB
-.dw	mmapGetB, mmapPutB
-
-
-.equ	MMAP_START	0xe000
-.inc "mmap.asm"
-
-.equ	STDIO_RAMSTART	BLOCKDEV_RAMEND
-.equ	STDIO_GETC	aciaGetC
-.equ	STDIO_PUTC	aciaPutC
-.inc "stdio.asm"
-
-.equ	FS_RAMSTART	STDIO_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"
-.inc "basic/blk.asm"
-.inc "basic/sdc.asm"
-.equ	BFS_RAMSTART	BUF_RAMEND
-.inc "basic/fs.asm"
-.equ	BAS_RAMSTART	BFS_RAMEND
-.inc "basic/main.asm"
-
-.equ	SDC_RAMSTART	BAS_RAMEND
-.equ	SDC_PORT_CSHIGH	6
-.equ	SDC_PORT_CSLOW	5
-.equ	SDC_PORT_SPI	4
-.inc "sdc.asm"
-
-.out	SDC_RAMEND
-
-init:
-	di
-	ld	sp, RAMEND
-	im	1
-	call	aciaInit
-	call	fsInit
-	call	basInit
-	ld	hl, basFindCmdExtra
-	ld	(BAS_FINDHOOK), hl
-
-	xor	a
-	ld	de, BLOCKDEV_SEL
-	call	blkSel
-
-	ei
-	jp	basStart
-
-basFindCmdExtra:
-	ld	hl, basFSCmds
-	call	basFindCmd
-	ret	z
-	ld	hl, basBLKCmds
-	call	basFindCmd
-	ret	z
-	ld	hl, basSDCCmds
-	call	basFindCmd
-	ret	z
-	jp	basPgmHook
-
-; *** blkdev 1: file handle 0 ***
-
-blk1GetB:
-	ld	ix, FS_HANDLES
-	jp	fsGetB
-
-blk1PutB:
-	ld	ix, FS_HANDLES
-	jp	fsPutB
-
-; *** blkdev 2: file handle 1 ***
-
-blk2GetB:
-	ld	ix, FS_HANDLES+FS_HANDLE_SIZE
-	jp	fsGetB
-
-blk2PutB:
-	ld	ix, FS_HANDLES+FS_HANDLE_SIZE
-	jp	fsPutB

recipes/rc2014/zasm/user.h

@@ -1,23 +0,0 @@
-.org    0x9b00
-
-; *** JUMP TABLE ***
-.equ    strncmp        0x03
-.equ    upcase         @+3
-.equ    findchar       @+3
-.equ    blkSel         @+3
-.equ    blkSet         @+3
-.equ    fsFindFN       @+3
-.equ    fsOpen         @+3
-.equ    fsGetB         @+3
-.equ    printstr       @+3
-.equ    printcrlf      @+3
-.equ    _blkGetB       @+3
-.equ    _blkPutB       @+3
-.equ    _blkSeek       @+3
-.equ    _blkTell       @+3
-.equ    sdcGetB        @+3
-.equ    sdcPutB        @+3
-.equ    blkGetB        @+3
-
-; *** cont. ***
-.equ    stdioPutC      0x3b

tests/Makefile

@@ -2,5 +2,5 @@ EMULDIR = ../emul
 
 .PHONY: run
 run:
-	$(MAKE) -C $(EMULDIR) forth/forth
+	$(MAKE) -C $(EMULDIR) all
 	cd forth && ./runtests.sh

tests/forth/runtests.sh

@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
 BASE=../..
-EXEC="${BASE}/emul/forth/forth"
-FDIR="${BASE}/forth"
+EXEC="${BASE}/emul/forth"
 TMP=$(mktemp)
 
 chk() {

tests/forth/test_sdc.fs

@@ -0,0 +1,10 @@
+212 LOAD ( z80a )
+: SDC_SPI 4 ;
+: SDC_CSLOW 5 ;
+: SDC_CSHIGH 6 ;
+372 LOAD ( sdc.z80 )
+374 LOAD ( sdc.fs )
+
+0x0000 0x0000 _crc16 0x0000 #eq
+0x0000 0x0001 _crc16 0x1021 #eq
+0x5678 0x1234 _crc16 0x43c4 #eq