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26 changed files with 45 additions and 49 deletions

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@ -2,15 +2,15 @@ Parameter Stack
DROP a -- DROP a --
DUP a -- a a DUP a -- a a
?DUP DUP if a is nonzero
NIP a b -- b
OVER a b -- a b a OVER a b -- a b a
ROT a b c -- b c a ROT a b c -- b c a
SWAP a b -- b a SWAP a b -- b a
TUCK a b -- b a b
2DROP a a -- 2DROP a a --
2DUP a b -- a b a b 2DUP a b -- a b a b
2OVER a b c d -- a b c d a b 2OVER a b c d -- a b c d a b
2SWAP a b c d -- c d a b 2SWAP a b c d -- c d a b
'S Returns current stack pointer, not counting the 'S Returns current stack pointer, not counting the
push it's making right now. (cont.) push it's making right now.
S0 Returns address of PSP TOS. When PSP is empty,
'S == S0
(cont.)

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@ -1,5 +1,4 @@
S0 Returns address of PSP TOS. When PSP is empty, (cont.)
'S == S0
PICK Pick nth item from stack. "0 PICK" = DUP, PICK Pick nth item from stack. "0 PICK" = DUP,
"1 PICK" = OVER. "1 PICK" = OVER.
ROLL Rotate PSP over n items. "1 ROLL" = SWAP, ROLL Rotate PSP over n items. "1 ROLL" = SWAP,

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@ -3,7 +3,7 @@
BEGIN BEGIN
C@+ ROT ( a2+1 c2 a1 ) C@+ ROT ( a2+1 a1+1 c1 c2 ) C@+ ROT ( a2+1 c2 a1 ) C@+ ROT ( a2+1 a1+1 c1 c2 )
= NOT IF DROP FBUF THEN = NOT IF DROP FBUF THEN
TUCK C@ 0xd = ( a1 a2 f1 ) SWAP OVER C@ 0xd = ( a1 a2 f1 )
OVER BLK) = OR ( a1 a2 f1|f2 ) OVER BLK) = OR ( a1 a2 f1|f2 )
UNTIL UNTIL
DUP BLK) < IF BLK( - FBUF + -^ EDPOS ! THEN DUP BLK) < IF BLK( - FBUF + -^ EDPOS ! THEN

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@ -4,10 +4,10 @@
EDPOS @ 64 MOD 63 -^ ; EDPOS @ 64 MOD 63 -^ ;
: _I : _I
IBUF _type _rbufsz IBUF _blen 2DUP > IF IBUF _type _rbufsz IBUF _blen 2DUP > IF
TUCK - ( ilen chars-to-move ) SWAP OVER - ( ilen chars-to-move )
SWAP EDPOS @ _cpos 2DUP + ( ctm ilen a a+ilen ) SWAP EDPOS @ _cpos 2DUP + ( ctm ilen a a+ilen )
3 PICK MOVE- ( ctm ilen ) 3 PICK MOVE- ( ctm ilen )
NIP ( ilen ) SWAP DROP ( ilen )
ELSE DROP ( ilen becomes rbuffsize ) ELSE DROP ( ilen becomes rbuffsize )
THEN THEN
DUP IBUF EDPOS @ _cpos ROT MOVE ( ilen ) DUP IBUF EDPOS @ _cpos ROT MOVE ( ilen )

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@ -7,9 +7,9 @@
THEN THEN
ROT ( o a n ol ) ROT ( o a n ol )
< IF ( under limit, do nothing ) < IF ( under limit, do nothing )
NIP ( a ) SWAP DROP ( a )
ELSE ( o a ) ELSE ( o a )
TUCK @ ( a o n ) SWAP OVER @ ( a o n )
-^ ( a n-o ) -^ ( a n-o )
OVER ! ( a ) OVER ! ( a )
THEN THEN

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@ -3,7 +3,7 @@
: AMOVE : AMOVE
( u ) 0 DO ( u ) 0 DO
SWAP DUP I + A@ ( dst src x ) SWAP DUP I + A@ ( dst src x )
ROT TUCK I + ( src dst x dst ) ROT SWAP OVER I + ( src dst x dst )
A! ( src dst ) A! ( src dst )
LOOP LOOP
2DROP 2DROP

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@ -3,7 +3,7 @@
hit 0. ) hit 0. )
: ENDCASE : ENDCASE
BEGIN BEGIN
?DUP NOT IF EXIT THEN DUP NOT IF DROP EXIT THEN
[COMPILE] THEN [COMPILE] THEN
AGAIN AGAIN
; IMMEDIATE ; IMMEDIATE

12
blk/307
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@ -1,13 +1,9 @@
( a -- a a ) ( a -- a a )
CODE DUP CODE DUP
HL POPqq, chkPS, HL POPqq, ( A )
HL PUSHqq, HL PUSHqq, chkPS,
;CODE HL PUSHqq, ( A )
HL PUSHqq, ( A )
CODE ?DUP
HL POPqq, chkPS,
HL PUSHqq,
HLZ, IFNZ, HL PUSHqq, THEN,
;CODE ;CODE
( a -- ) ( a -- )

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@ -6,8 +6,7 @@
: =><= 2 PICK >= ( n l f ) ROT ROT >= AND ; : =><= 2 PICK >= ( n l f ) ROT ROT >= AND ;
: MIN ( n n - n ) 2DUP > IF SWAP THEN DROP ; : MIN ( n n - n ) 2DUP > IF SWAP THEN DROP ;
: MAX ( n n - n ) 2DUP < IF SWAP THEN DROP ; : MAX ( n n - n ) 2DUP < IF SWAP THEN DROP ;
: NIP SWAP DROP ; : TUCK SWAP OVER ;
: C@+ ( a -- a+1 c ) DUP C@ SWAP 1+ SWAP ; : C@+ ( a -- a+1 c ) DUP C@ SWAP 1+ SWAP ;
: C!+ ( c a -- a+1 ) TUCK C! 1+ ; : C!+ ( c a -- a+1 ) SWAP OVER C! 1+ ;
: C@- ( a -- a-1 c ) DUP C@ SWAP 1- SWAP ; : C@- ( a -- a-1 c ) DUP C@ SWAP 1- SWAP ;
: C!- ( c a -- a-1 ) TUCK C! 1- ; : C!- ( c a -- a-1 ) SWAP OVER C! 1- ;

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@ -5,12 +5,12 @@
- SWAP EXIT ( 0-n f ) - SWAP EXIT ( 0-n f )
THEN THEN
0 SWAP _pdacc ( a r f ) 0 SWAP _pdacc ( a r f )
?DUP IF 2DROP 0 EXIT THEN DUP IF 2DROP 0 EXIT THEN
BEGIN ( a r ) BEGIN ( a r 0 )
SWAP 1+ ( r a+1 ) DROP SWAP 1+ ( r a+1 )
DUP C@ ( r a c ) DUP C@ ( r a c )
ROT SWAP ( a r c ) ROT SWAP ( a r c )
_pdacc ( a r f ) _pdacc ( a r f )
?DUP UNTIL DUP UNTIL
1 = ( a r f ) 1 = ( a r f )
ROT DROP ( r f ) ; ROT DROP ( r f ) ;

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@ -6,7 +6,7 @@
0 ( a r ) 0 ( a r )
BEGIN BEGIN
SWAP C@+ ( r a+1 c ) SWAP C@+ ( r a+1 c )
?DUP NOT IF DROP 1 EXIT THEN ( r, 1 ) DUP NOT IF 2DROP 1 EXIT THEN ( r, 1 )
_ ( r a n ) _ ( r a n )
DUP 0< IF ROT 2DROP 0 EXIT THEN ( a 0 ) DUP 0< IF ROT 2DROP 0 EXIT THEN ( a 0 )
ROT 16 * + ( a r*16+n ) ROT 16 * + ( a r*16+n )

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@ -6,7 +6,7 @@
0 ( a r ) 0 ( a r )
BEGIN BEGIN
SWAP C@+ ( r a+1 c ) SWAP C@+ ( r a+1 c )
?DUP NOT IF DROP 1 EXIT THEN ( r 1 ) DUP NOT IF 2DROP 1 EXIT THEN ( r 1 )
_ ( r a n ) _ ( r a n )
DUP 0< IF ROT 2DROP 0 EXIT THEN ( a 0 ) DUP 0< IF ROT 2DROP 0 EXIT THEN ( a 0 )
ROT 2 * + ( a r*2+n ) ROT 2 * + ( a r*2+n )

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@ -1,7 +1,7 @@
: C<? 0x06 RAM+ @ ; : C<? 0x06 RAM+ @ ;
: C< : C<
0x08 RAM+ @ ( 08 == C<* override ) 0x08 RAM+ @ ( 08 == C<* override )
?DUP NOT IF 0x0c RAM+ @ THEN ( 0c == C<* ) DUP NOT IF DROP 0x0c RAM+ @ THEN ( 0c == C<* )
EXECUTE EXECUTE
; ;
: , H@ ! H@ 2+ HERE ! ; : , H@ ! H@ 2+ HERE ! ;

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@ -9,5 +9,5 @@
OVER ! 1+ C< ( a c ) OVER ! 1+ C< ( a c )
OVER 0x2d ( 2e-1 for NULL ) RAM+ = OVER WS? OR OVER 0x2d ( 2e-1 for NULL ) RAM+ = OVER WS? OR
UNTIL ( a c ) UNTIL ( a c )
NIP 0x0e RAM+ ( ws a ) SWAP DROP 0x0e RAM+ ( ws a )
SWAP EOT? IF 4 OVER ! THEN ; SWAP EOT? IF 4 OVER ! THEN ;

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@ -1,6 +1,6 @@
: SCPY : SCPY
BEGIN ( a ) BEGIN ( a )
C@+ ( a+1 c ) C@+ ( a+1 c )
?DUP NOT IF DROP EXIT THEN DUP NOT IF 2DROP EXIT THEN
C, ( a c ) C, ( a c )
AGAIN ; AGAIN ;

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@ -5,9 +5,9 @@
CURRENT @ 1- CURRENT @ 1-
DUP C@ 128 OR SWAP C! ; DUP C@ 128 OR SWAP C! ;
: IMMED? 1- C@ 0x80 AND ; : IMMED? 1- C@ 0x80 AND ;
: +! TUCK @ + SWAP ! ; : +! SWAP OVER @ + SWAP ! ;
: -^ SWAP - ; : -^ SWAP - ;
: / /MOD NIP ; : / /MOD SWAP DROP ;
: MOD /MOD DROP ; : MOD /MOD DROP ;
: ALLOT HERE +! ; : ALLOT HERE +! ;
: CREATE (entry) 11 ( 11 == cellWord ) C, ; : CREATE (entry) 11 ( 11 == cellWord ) C, ;

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@ -4,9 +4,10 @@
LIT< (wnf) FIND DROP EXECUTE LIT< (wnf) FIND DROP EXECUTE
; ;
: ROLL : ROLL
?DUP NOT IF EXIT THEN DUP NOT IF EXIT THEN
1+ DUP PICK ( n val ) 1+ DUP PICK ( n val )
SWAP 2 * (roll) ( val ) SWAP 2 * (roll) ( val )
NIP ; SWAP DROP
;
: 2OVER 3 PICK 3 PICK ; : 2OVER 3 PICK 3 PICK ;
: 2SWAP 3 ROLL 3 ROLL ; : 2SWAP 3 ROLL 3 ROLL ;

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@ -4,7 +4,7 @@
ROT C!+ ( a1+1 a2+1 ) ROT C!+ ( a1+1 a2+1 )
LOOP 2DROP ; LOOP 2DROP ;
: MOVE- ( a1 a2 u -- ) : MOVE- ( a1 a2 u -- )
TUCK + 1- ( a1 u a2+u-1 ) SWAP OVER + 1- ( a1 u a2+u-1 )
ROT 2 PICK + 1- ( u a2+u-1 a1+u-1 ) ROT 2 PICK + 1- ( u a2+u-1 a1+u-1 )
ROT ( u ) 0 DO ( a2 a1 ) ROT ( u ) 0 DO ( a2 a1 )
C@- ( a2 a1-1 x ) C@- ( a2 a1-1 x )

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@ -1,6 +1,6 @@
: EMIT : EMIT
( 0x53==(emit) override ) ( 0x53==(emit) override )
0x53 RAM+ @ ?DUP IF EXECUTE ELSE (emit) THEN ; 0x53 RAM+ @ DUP IF EXECUTE ELSE DROP (emit) THEN ;
: (print) : (print)
BEGIN BEGIN
C@+ ( a+1 c ) C@+ ( a+1 c )
@ -10,6 +10,6 @@
AGAIN ; AGAIN ;
: BS 8 EMIT ; : LF 10 EMIT ; : CR 13 EMIT ; : BS 8 EMIT ; : LF 10 EMIT ; : CR 13 EMIT ;
: CRLF CR LF ; : SPC 32 EMIT ; : CRLF CR LF ; : SPC 32 EMIT ;
: NL 0x0a RAM+ @ ( NLPTR ) ?DUP IF EXECUTE ELSE CRLF THEN ; : NL 0x0a RAM+ @ ( NLPTR ) DUP IF EXECUTE ELSE DROP CRLF THEN ;
: (uflw) LIT" stack underflow" ERR ; : (uflw) LIT" stack underflow" ERR ;
: (wnf) (print) SPC LIT" word not found" ERR ; : (wnf) (print) SPC LIT" word not found" ERR ;

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@ -9,7 +9,7 @@
: KEY : KEY
85 RAM+ @ ( (key) override ) 85 RAM+ @ ( (key) override )
?DUP IF EXECUTE ELSE (key) THEN ; DUP IF EXECUTE ELSE DROP (key) THEN ;
( cont.: read one char into input buffer and returns whether we ( cont.: read one char into input buffer and returns whether we

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@ -11,5 +11,5 @@
DUP _shift? IF DROP 1 PS2_SHIFT C! (key) EXIT THEN DUP _shift? IF DROP 1 PS2_SHIFT C! (key) EXIT THEN
( ah, finally, we have a gentle run-of-the-mill KC ) ( ah, finally, we have a gentle run-of-the-mill KC )
PS2_CODES PS2_SHIFT C@ IF 0x80 + THEN + C@ PS2_CODES PS2_SHIFT C@ IF 0x80 + THEN + C@
?DUP NOT IF (key) THEN ; DUP NOT IF DROP (key) THEN ;

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@ -8,5 +8,5 @@
( gid dmask ) ( gid dmask )
0xff XOR ( dpos ) 0 ( dindex ) 0xff XOR ( dpos ) 0 ( dindex )
BEGIN 1+ 2DUP RSHIFT NOT UNTIL 1- BEGIN 1+ 2DUP RSHIFT NOT UNTIL 1-
( gid dpos dindex ) NIP ( gid dpos dindex ) SWAP DROP
( gid dindex ) SWAP 8 * + ; ( gid dindex ) SWAP 8 * + ;

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@ -8,7 +8,7 @@
0 ( cnt ) 0 ( cnt )
BEGIN BEGIN
_idle _idle
DUP 0xff = IF DROP ELSE NIP EXIT THEN DUP 0xff = IF DROP ELSE SWAP DROP EXIT THEN
1+ 1+
DUP 20 = UNTIL DUP 20 = UNTIL
DROP 0xff DROP 0xff

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@ -4,5 +4,5 @@
CREATE _ '0' C, ':' C, 'A' C, '[' C, 'a' C, 0xff C, CREATE _ '0' C, ':' C, 'A' C, '[' C, 'a' C, 0xff C,
: _nxtcls : _nxtcls
_sel @ _ BEGIN ( c a ) C@+ 2 PICK > UNTIL ( c a ) _sel @ _ BEGIN ( c a ) C@+ 2 PICK > UNTIL ( c a )
1- C@ NIP _sel ! 1- C@ SWAP DROP _sel !
; ;

Binary file not shown.

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@ -45,15 +45,16 @@ device I use in this recipe.
* [GNU screen][screen] * [GNU screen][screen]
* A FTDI-to-TTL cable to connect to the Serial I/O module * A FTDI-to-TTL cable to connect to the Serial I/O module
### Configure your build
Modules used in this build are configured through the `conf.fs` file in this
folder. There isn't much to configure, but it's there.
### Build the binary ### Build the binary
Building the binary is as simple as running `make`. This will yield `os.bin` Building the binary is as simple as running `make`. This will yield `os.bin`
which can then be written to EEPROM. which can then be written to EEPROM.
This build is controlled by the `xcomp.fs` unit, which loads `blk/618`. That's
what you need to modify if you want to customize your build (if you do, you'll
need to rebuild `/emul/stage` because the blkfs is embedded in it).
### Emulate ### Emulate
The Collapse OS project includes a RC2014 emulator suitable for this image. The Collapse OS project includes a RC2014 emulator suitable for this image.