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898684a795
...
6767012ebd
2
blk/001
2
blk/001
@ -5,7 +5,7 @@ MASTER INDEX
|
||||
200 Z80 assembler 260 Cross compilation
|
||||
280 Z80 boot code 350 ACIA driver
|
||||
370 SD Card driver 390 Inner core
|
||||
420 Core words
|
||||
|
||||
|
||||
|
||||
|
||||
|
14
blk/420
14
blk/420
@ -1,14 +0,0 @@
|
||||
Core words
|
||||
|
||||
These words follow Inner core words, but unlike them, these are
|
||||
self-bootstrapping and don't depend on the Cross Compiler. They
|
||||
will typically be included in source form right after a stage1
|
||||
binary which will interpret it on boot and bootstrap itself to
|
||||
a full intepreter, which can then be relinked with the
|
||||
Relinker. There is no loader for these libraries because you
|
||||
will typically XPACK (B267) them.
|
||||
|
||||
422 core 438 cmp
|
||||
442 print 446 parse
|
||||
453 readln 459 fmt
|
||||
464 blk
|
16
blk/422
16
blk/422
@ -1,16 +0,0 @@
|
||||
: H@ HERE @ ;
|
||||
: IMMEDIATE
|
||||
CURRENT @ 1-
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||||
DUP C@ 128 OR SWAP C!
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||||
;
|
||||
: [ INTERPRET ; IMMEDIATE
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||||
: ] R> DROP ;
|
||||
: LITS 34 , SCPY ;
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||||
: LIT< WORD LITS ; IMMEDIATE
|
||||
: LITA 36 , , ;
|
||||
: '
|
||||
WORD (find) (?br) [ 4 , ] EXIT
|
||||
LIT< (wnf) (find) DROP EXECUTE
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||||
;
|
||||
: ['] ' LITA ; IMMEDIATE
|
||||
|
5
blk/423
5
blk/423
@ -1,5 +0,0 @@
|
||||
: COMPILE ' LITA ['] , , ; IMMEDIATE
|
||||
: [COMPILE] ' , ; IMMEDIATE
|
||||
: BEGIN H@ ; IMMEDIATE
|
||||
: AGAIN COMPILE (br) H@ - , ; IMMEDIATE
|
||||
: UNTIL COMPILE (?br) H@ - , ; IMMEDIATE
|
13
blk/424
13
blk/424
@ -1,13 +0,0 @@
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||||
: _ BEGIN LIT< ) WORD S= UNTIL ; IMMEDIATE
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||||
40 CURRENT @ 4 - C!
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||||
( Hello, hello, krkrkrkr... do you hear me?
|
||||
Ah, voice at last! Some lines above need comments
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||||
BTW: Forth lines limited to 64 cols because of default
|
||||
input buffer size in Collapse OS
|
||||
|
||||
40 is ASCII for '('. We do this to simplify XPACK's task of
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||||
not mistakenly consider '(' definition as a comment.
|
||||
LITS: 34 == litWord
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||||
LITA: 36 == addrWord
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||||
COMPILE: Tough one. Get addr of caller word (example above
|
||||
(br)) and then call LITA on it. )
|
15
blk/425
15
blk/425
@ -1,15 +0,0 @@
|
||||
: +! SWAP OVER @ + SWAP ! ;
|
||||
: -^ SWAP - ;
|
||||
: ALLOT HERE +! ;
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||||
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||||
: IF ( -- a | a: br cell addr )
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||||
COMPILE (?br)
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||||
H@ ( push a )
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||||
2 ALLOT ( br cell allot )
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||||
; IMMEDIATE
|
||||
|
||||
: THEN ( a -- | a: br cell addr )
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||||
DUP H@ -^ SWAP ( a-H a )
|
||||
!
|
||||
; IMMEDIATE
|
||||
|
8
blk/426
8
blk/426
@ -1,8 +0,0 @@
|
||||
: ELSE ( a1 -- a2 | a1: IF cell a2: ELSE cell )
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||||
COMPILE (br)
|
||||
2 ALLOT
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||||
DUP H@ -^ SWAP ( a-H a )
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||||
!
|
||||
H@ 2- ( push a. -2 for allot offset )
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||||
; IMMEDIATE
|
||||
|
10
blk/427
10
blk/427
@ -1,10 +0,0 @@
|
||||
( During a CASE, the stack grows by 1 at each ENDOF so that
|
||||
we can fill all those ENDOF branching addrs. So that we
|
||||
know when to stop, we put a 0 on PSP. That's our stopgap. )
|
||||
: CASE 0 COMPILE >R ; IMMEDIATE
|
||||
: OF
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||||
COMPILE I COMPILE =
|
||||
[COMPILE] IF
|
||||
; IMMEDIATE
|
||||
: ENDOF [COMPILE] ELSE ; IMMEDIATE
|
||||
|
13
blk/428
13
blk/428
@ -1,13 +0,0 @@
|
||||
( At this point, we have something like "0 e1 e2 e3 val". We
|
||||
want top drop val, and then call THEN as long as we don't
|
||||
hit 0. )
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||||
: ENDCASE
|
||||
BEGIN
|
||||
DUP NOT IF
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||||
DROP COMPILE R> COMPILE DROP EXIT
|
||||
THEN
|
||||
[COMPILE] THEN
|
||||
AGAIN
|
||||
; IMMEDIATE
|
||||
|
||||
|
7
blk/429
7
blk/429
@ -1,7 +0,0 @@
|
||||
: CREATE
|
||||
(entry) ( empty header with name )
|
||||
11 ( 11 == cellWord )
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||||
C, ( write it )
|
||||
;
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||||
|
||||
|
14
blk/430
14
blk/430
@ -1,14 +0,0 @@
|
||||
: DOES>
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||||
( Overwrite cellWord in CURRENT )
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||||
( 43 == doesWord )
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||||
43 CURRENT @ C!
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||||
( When we have a DOES>, we forcefully place HERE to 4
|
||||
bytes after CURRENT. This allows a DOES word to use ","
|
||||
and "C," without messing everything up. )
|
||||
CURRENT @ 3 + HERE !
|
||||
( HERE points to where we should write R> )
|
||||
R> ,
|
||||
( We're done. Because we've popped RS, we'll exit parent
|
||||
definition )
|
||||
;
|
||||
|
13
blk/431
13
blk/431
@ -1,13 +0,0 @@
|
||||
: VARIABLE CREATE 2 ALLOT ;
|
||||
: CONSTANT CREATE , DOES> @ ;
|
||||
: / /MOD SWAP DROP ;
|
||||
: MOD /MOD DROP ;
|
||||
|
||||
( In addition to pushing H@ this compiles 2 >R so that loop
|
||||
variables are sent to PS at runtime )
|
||||
: DO
|
||||
COMPILE SWAP COMPILE >R COMPILE >R
|
||||
H@
|
||||
; IMMEDIATE
|
||||
|
||||
|
16
blk/432
16
blk/432
@ -1,16 +0,0 @@
|
||||
( Increase loop counter and returns whether we should loop. )
|
||||
: _
|
||||
R> ( IP, keep for later )
|
||||
R> 1+ ( ip i+1 )
|
||||
DUP >R ( ip i )
|
||||
I' = ( ip f )
|
||||
SWAP >R ( f )
|
||||
;
|
||||
( One could think that we should have a sub word to avoid all
|
||||
these COMPILE, but we can't because otherwise it messes with
|
||||
the RS )
|
||||
: LOOP
|
||||
COMPILE _ COMPILE (?br)
|
||||
H@ - ,
|
||||
COMPILE R> COMPILE DROP COMPILE R> COMPILE DROP
|
||||
; IMMEDIATE
|
14
blk/433
14
blk/433
@ -1,14 +0,0 @@
|
||||
: LEAVE R> R> DROP I 1- >R >R ;
|
||||
|
||||
: ROLL
|
||||
DUP NOT IF EXIT THEN
|
||||
1+ DUP PICK ( n val )
|
||||
SWAP 2 * (roll) ( val )
|
||||
SWAP DROP
|
||||
;
|
||||
|
||||
: 2DUP OVER OVER ;
|
||||
: 2OVER 3 PICK 3 PICK ;
|
||||
: 2SWAP 3 ROLL 3 ROLL ;
|
||||
|
||||
|
16
blk/434
16
blk/434
@ -1,16 +0,0 @@
|
||||
( a1 a2 u -- )
|
||||
: MOVE
|
||||
( u ) 0 DO
|
||||
SWAP DUP I + C@ ( a2 a1 x )
|
||||
ROT SWAP OVER I + ( a1 a2 x a2 )
|
||||
C! ( a1 a2 )
|
||||
LOOP
|
||||
2DROP
|
||||
;
|
||||
|
||||
: DELW 1- 0 SWAP C! ;
|
||||
|
||||
: PREV
|
||||
3 - DUP @ ( a o )
|
||||
- ( a-o )
|
||||
;
|
16
blk/435
16
blk/435
@ -1,16 +0,0 @@
|
||||
: WORD(
|
||||
DUP 1- C@ ( name len field )
|
||||
127 AND ( 0x7f. remove IMMEDIATE flag )
|
||||
3 + ( fixed header len )
|
||||
-
|
||||
;
|
||||
: FORGET
|
||||
' DUP ( w w )
|
||||
( HERE must be at the end of prev's word, that is, at the
|
||||
beginning of w. )
|
||||
WORD( HERE ! ( w )
|
||||
PREV CURRENT !
|
||||
;
|
||||
: EMPTY
|
||||
LIT< _sys (find) NOT IF ABORT THEN
|
||||
DUP HERE ! CURRENT ! ;
|
12
blk/436
12
blk/436
@ -1,12 +0,0 @@
|
||||
( Drop RSP until I-2 == INTERPRET. )
|
||||
: EXIT!
|
||||
['] INTERPRET ( I )
|
||||
BEGIN ( I )
|
||||
DUP ( I I )
|
||||
R> DROP I 2- @ ( I I a )
|
||||
= UNTIL
|
||||
DROP
|
||||
;
|
||||
|
||||
( a -- a+1 c )
|
||||
: C@+ DUP C@ SWAP 1+ SWAP ;
|
13
blk/438
13
blk/438
@ -1,13 +0,0 @@
|
||||
( Words useful for complex comparison operations )
|
||||
|
||||
: >= < NOT ;
|
||||
: <= > NOT ;
|
||||
: 0>= 0< NOT ;
|
||||
|
||||
( n1 -- n1 true )
|
||||
: <>{ 1 ;
|
||||
|
||||
( n1 f -- f )
|
||||
: <>} SWAP DROP ;
|
||||
|
||||
|
15
blk/439
15
blk/439
@ -1,15 +0,0 @@
|
||||
|
||||
: _|&
|
||||
( n1 n2 cell )
|
||||
>R >R DUP R> R> ( n1 n1 n2 cell )
|
||||
@ EXECUTE ( n1 f )
|
||||
;
|
||||
|
||||
( n1 f n2 -- n1 f )
|
||||
: _|
|
||||
CREATE , DOES>
|
||||
( n1 f n2 cell )
|
||||
ROT IF 2DROP 1 EXIT THEN ( n1 true )
|
||||
_|&
|
||||
;
|
||||
|
15
blk/440
15
blk/440
@ -1,15 +0,0 @@
|
||||
: _&
|
||||
CREATE , DOES>
|
||||
( n1 f n2 cell )
|
||||
ROT NOT IF 2DROP 0 EXIT THEN ( n1 true )
|
||||
_|&
|
||||
;
|
||||
|
||||
( All words below have this signature:
|
||||
n1 f n2 -- n1 f )
|
||||
' = _| |=
|
||||
' = _& &=
|
||||
' > _| |>
|
||||
' > _& &>
|
||||
' < _| |<
|
||||
' < _& &<
|
11
blk/442
11
blk/442
@ -1,11 +0,0 @@
|
||||
( EMIT is needed for this unit to compile )
|
||||
|
||||
: (print)
|
||||
BEGIN
|
||||
C@+ ( a+1 c )
|
||||
( exit if null )
|
||||
DUP NOT IF 2DROP EXIT THEN
|
||||
EMIT ( a )
|
||||
AGAIN
|
||||
;
|
||||
|
15
blk/443
15
blk/443
@ -1,15 +0,0 @@
|
||||
: ."
|
||||
34 , ( 34 == litWord )
|
||||
BEGIN
|
||||
C<
|
||||
( 34 is ASCII for " )
|
||||
DUP 34 = IF DROP 0 THEN
|
||||
DUP C,
|
||||
NOT UNTIL
|
||||
COMPILE (print)
|
||||
; IMMEDIATE
|
||||
|
||||
: ABORT" [COMPILE] ." COMPILE ABORT ; IMMEDIATE
|
||||
|
||||
: (uflw) ABORT" stack underflow" ;
|
||||
|
9
blk/444
9
blk/444
@ -1,9 +0,0 @@
|
||||
: 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 ;
|
||||
|
11
blk/446
11
blk/446
@ -1,11 +0,0 @@
|
||||
( strings being sent to parse routines are always null
|
||||
terminated )
|
||||
|
||||
: (parsec) ( a -- n f )
|
||||
( apostrophe is ASCII 39 )
|
||||
DUP C@ 39 = NOT IF 0 EXIT THEN ( a 0 )
|
||||
DUP 2+ C@ 39 = NOT IF 0 EXIT THEN ( a 0 )
|
||||
( surrounded by apos, good, return )
|
||||
1+ C@ 1 ( n 1 )
|
||||
;
|
||||
|
15
blk/447
15
blk/447
@ -1,15 +0,0 @@
|
||||
( returns negative value on error )
|
||||
: _ ( c -- n )
|
||||
( '0' is ASCII 48 )
|
||||
48 -
|
||||
DUP 0< IF EXIT THEN ( bad )
|
||||
DUP 10 < IF EXIT THEN ( good )
|
||||
( 'a' is ASCII 97. 59 = 97 - 48 )
|
||||
49 -
|
||||
DUP 0< IF EXIT THEN ( bad )
|
||||
DUP 6 < IF 10 + EXIT THEN ( good )
|
||||
( bad )
|
||||
255 -
|
||||
;
|
||||
|
||||
|
15
blk/448
15
blk/448
@ -1,15 +0,0 @@
|
||||
: (parseh) ( a -- n f )
|
||||
( '0': ASCII 0x30 'x': 0x78 0x7830: 30768 )
|
||||
DUP @ 30768 = NOT IF 0 EXIT THEN ( a 0 )
|
||||
( We have "0x" prefix )
|
||||
2+
|
||||
0 ( a r )
|
||||
BEGIN
|
||||
SWAP C@+ ( r a+1 c )
|
||||
DUP NOT IF 2DROP 1 EXIT THEN ( r, 1 )
|
||||
_ ( r a n )
|
||||
DUP 0< IF ROT 2DROP 0 EXIT THEN ( a 0 )
|
||||
ROT 16 * + ( a r*16+n )
|
||||
AGAIN
|
||||
;
|
||||
|
11
blk/449
11
blk/449
@ -1,11 +0,0 @@
|
||||
( returns negative value on error )
|
||||
: _ ( c -- n )
|
||||
( '0' is ASCII 48 )
|
||||
48 -
|
||||
DUP 0< IF EXIT THEN ( bad )
|
||||
DUP 2 < IF EXIT THEN ( good )
|
||||
( bad )
|
||||
255 -
|
||||
;
|
||||
|
||||
|
16
blk/450
16
blk/450
@ -1,16 +0,0 @@
|
||||
: (parseb) ( a -- n f )
|
||||
( '0': ASCII 0x30 'b': 0x62 0x6230: 25136 )
|
||||
DUP @ 25136 = NOT IF 0 EXIT THEN ( a 0 )
|
||||
( We have "0b" prefix )
|
||||
2+
|
||||
0 ( a r )
|
||||
BEGIN
|
||||
SWAP C@+ ( r a+1 c )
|
||||
DUP NOT IF 2DROP 1 EXIT THEN ( r 1 )
|
||||
_ ( r a n )
|
||||
DUP 0< IF ROT 2DROP 0 EXIT THEN ( a 0 )
|
||||
ROT 2 * + ( a r*2+n )
|
||||
AGAIN
|
||||
;
|
||||
|
||||
|
10
blk/451
10
blk/451
@ -1,10 +0,0 @@
|
||||
: (parse) ( a -- n )
|
||||
(parsec) IF EXIT THEN
|
||||
(parseh) IF EXIT THEN
|
||||
(parseb) IF EXIT THEN
|
||||
(parsed) IF EXIT THEN
|
||||
( nothing works )
|
||||
LIT< (wnf) (find) IF EXECUTE ELSE ABORT THEN
|
||||
;
|
||||
|
||||
' (parse) (parse*) !
|
13
blk/453
13
blk/453
@ -1,13 +0,0 @@
|
||||
64 CONSTANT INBUFSZ
|
||||
: RDLNMEM+ 0x53 RAM+ @ + ;
|
||||
( current position in INBUF )
|
||||
: IN> 0 RDLNMEM+ ;
|
||||
( points to INBUF )
|
||||
: IN( 2 RDLNMEM+ ;
|
||||
( points to INBUF's end )
|
||||
: IN) INBUFSZ 2+ RDLNMEM+ ;
|
||||
|
||||
( flush input buffer )
|
||||
( set IN> to IN( and set IN> @ to null )
|
||||
: (infl) 0 IN( DUP IN> ! ! ;
|
||||
|
16
blk/454
16
blk/454
@ -1,16 +0,0 @@
|
||||
( handle backspace: go back one char in IN>, if possible, then
|
||||
emit SPC + BS )
|
||||
: (inbs)
|
||||
( already at IN( ? )
|
||||
IN> @ IN( = IF EXIT THEN
|
||||
IN> @ 1- IN> !
|
||||
SPC BS
|
||||
;
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
( cont.: read one char into input buffer and returns whether we
|
||||
should continue, that is, whether CR was not met. )
|
16
blk/455
16
blk/455
@ -1,16 +0,0 @@
|
||||
: (rdlnc) ( -- f )
|
||||
( buffer overflow? same as if we typed a newline )
|
||||
IN> @ IN) = IF 0x0a ELSE KEY THEN ( c )
|
||||
DUP 0x7f = IF DROP 0x8 THEN ( del? same as backspace )
|
||||
DUP 0x0a = IF DROP 0xd THEN ( lf? same as cr )
|
||||
( echo back )
|
||||
DUP EMIT ( c )
|
||||
( bacspace? handle and exit )
|
||||
DUP 0x8 = IF (inbs) EXIT THEN
|
||||
( write and advance )
|
||||
DUP ( keep as result ) ( c c )
|
||||
( We take advantage of the fact that c's MSB is always zero and
|
||||
thus ! automatically null-terminates our string )
|
||||
IN> @ ! 1 IN> +! ( c )
|
||||
( if newline, replace with zero to indicate EOL )
|
||||
DUP 0xd = IF DROP 0 THEN ;
|
16
blk/456
16
blk/456
@ -1,16 +0,0 @@
|
||||
( Read one line in input buffer and make IN> point to it )
|
||||
: (rdln)
|
||||
(infl) BEGIN (rdlnc) NOT UNTIL
|
||||
LF IN( IN> ! ;
|
||||
|
||||
( And finally, implement C<* )
|
||||
: RDLN<
|
||||
IN> @ C@
|
||||
DUP IF ( not EOL? good, inc and return )
|
||||
1 IN> +!
|
||||
ELSE ( EOL ? readline. we still return null though )
|
||||
(rdln)
|
||||
THEN
|
||||
( update C<? flag )
|
||||
IN> @ C@ 0 > 0x06 RAM+ ! ( 06 == C<? )
|
||||
;
|
12
blk/457
12
blk/457
@ -1,12 +0,0 @@
|
||||
( Initializes the readln subsystem )
|
||||
: RDLN$
|
||||
( 53 == rdln's memory )
|
||||
H@ 0x53 RAM+ !
|
||||
( 2 for IN>, plus 2 for extra bytes after buffer: 1 for
|
||||
the last typed 0x0a and one for the following NULL. )
|
||||
INBUFSZ 4 + ALLOT
|
||||
(infl)
|
||||
['] RDLN< 0x0c RAM+ !
|
||||
1 0x06 RAM+ ! ( 06 == C<? )
|
||||
;
|
||||
|
16
blk/459
16
blk/459
@ -1,16 +0,0 @@
|
||||
: _
|
||||
999 SWAP ( stop indicator )
|
||||
DUP 0 = IF '0' EXIT THEN ( 0 is a special case )
|
||||
BEGIN
|
||||
DUP 0 = IF DROP EXIT THEN
|
||||
10 /MOD ( r q )
|
||||
SWAP '0' + SWAP ( d q )
|
||||
AGAIN ;
|
||||
: . ( n -- )
|
||||
( handle negative )
|
||||
DUP 0< IF '-' EMIT -1 * THEN
|
||||
_
|
||||
BEGIN
|
||||
DUP '9' > IF DROP EXIT THEN ( stop indicator )
|
||||
EMIT
|
||||
AGAIN ;
|
16
blk/460
16
blk/460
@ -1,16 +0,0 @@
|
||||
: ? @ . ;
|
||||
: _
|
||||
DUP 9 > IF 10 - 'a' +
|
||||
ELSE '0' + THEN
|
||||
;
|
||||
( For hex display, there are no negatives )
|
||||
: .x
|
||||
256 MOD ( ensure < 0x100 )
|
||||
16 /MOD ( l h )
|
||||
_ EMIT ( l )
|
||||
_ EMIT
|
||||
;
|
||||
: .X
|
||||
256 /MOD ( l h )
|
||||
.x .x
|
||||
;
|
16
blk/461
16
blk/461
@ -1,16 +0,0 @@
|
||||
: _ ( a -- a+8 )
|
||||
DUP ( save for 2nd loop )
|
||||
':' EMIT DUP .x SPC
|
||||
4 0 DO
|
||||
DUP @ 256 /MOD SWAP
|
||||
.x .x SPC 2+
|
||||
LOOP
|
||||
DROP
|
||||
8 0 DO
|
||||
C@+
|
||||
DUP <>{ 0x20 &< 0x7e |> <>}
|
||||
IF DROP '.' THEN
|
||||
EMIT
|
||||
LOOP
|
||||
CRLF
|
||||
;
|
9
blk/462
9
blk/462
@ -1,9 +0,0 @@
|
||||
: DUMP ( n a -- )
|
||||
LF
|
||||
BEGIN
|
||||
OVER 1 < IF 2DROP EXIT THEN
|
||||
_
|
||||
SWAP 8 - SWAP
|
||||
AGAIN
|
||||
;
|
||||
|
12
blk/464
12
blk/464
@ -1,12 +0,0 @@
|
||||
: BLKMEM+ 0x57 RAM+ @ + ;
|
||||
( n -- Fetches block n and write it to BLK( )
|
||||
: BLK@* 0 BLKMEM+ ;
|
||||
( n -- Write back BLK( to storage at block n )
|
||||
: BLK!* 2 BLKMEM+ ;
|
||||
( Current blk pointer in ( )
|
||||
: BLK> 4 BLKMEM+ ;
|
||||
( Whether buffer is dirty )
|
||||
: BLKDTY 6 BLKMEM+ ;
|
||||
: BLK( 8 BLKMEM+ ;
|
||||
|
||||
|
12
blk/465
12
blk/465
@ -1,12 +0,0 @@
|
||||
: BLK$
|
||||
H@ 0x57 RAM+ !
|
||||
( 1024 for the block, 8 for variables )
|
||||
1032 ALLOT
|
||||
( LOAD detects end of block with ASCII EOT. This is why
|
||||
we write it there. EOT == 0x04 )
|
||||
4 C,
|
||||
0 BLKDTY !
|
||||
-1 BLK> !
|
||||
;
|
||||
|
||||
|
13
blk/466
13
blk/466
@ -1,13 +0,0 @@
|
||||
: BLK! ( -- )
|
||||
BLK> @ BLK!* @ EXECUTE
|
||||
0 BLKDTY !
|
||||
;
|
||||
|
||||
: BLK@ ( n -- )
|
||||
DUP BLK> @ = IF DROP EXIT THEN
|
||||
BLKDTY @ IF BLK! THEN
|
||||
DUP BLK> ! BLK@* @ EXECUTE
|
||||
;
|
||||
|
||||
: BLK!! 1 BLKDTY ! ;
|
||||
|
11
blk/467
11
blk/467
@ -1,11 +0,0 @@
|
||||
: .2 DUP 10 < IF SPC THEN . ;
|
||||
|
||||
: LIST
|
||||
BLK@
|
||||
16 0 DO
|
||||
I 1+ .2 SPC
|
||||
64 I * BLK( + (print)
|
||||
CRLF
|
||||
LOOP
|
||||
;
|
||||
|
16
blk/468
16
blk/468
@ -1,16 +0,0 @@
|
||||
: _
|
||||
(boot<)
|
||||
DUP 4 = IF
|
||||
( We drop our char, but also "a" from WORD: it won't
|
||||
have the opportunity to balance PSP because we're
|
||||
EXIT!ing. )
|
||||
2DROP
|
||||
( We're finished interpreting )
|
||||
EXIT!
|
||||
THEN
|
||||
;
|
||||
|
||||
( pre-comment for tight LOAD: The 0x08==I check after INTERPRET
|
||||
is to check whether we're restoring to "_", the word above.
|
||||
if yes, then we're in a nested load. Also, the 1 in 0x06 is
|
||||
to avoid tons of "ok" displays. )
|
16
blk/469
16
blk/469
@ -1,16 +0,0 @@
|
||||
: LOAD
|
||||
BLK> @ >R ( save restorable variables to RSP )
|
||||
0x08 RAM+ @ >R
|
||||
0x06 RAM+ @ >R ( C<? )
|
||||
0x2e RAM+ @ >R ( boot ptr )
|
||||
BLK@
|
||||
BLK( 0x2e RAM+ ! ( Point to beginning of BLK )
|
||||
['] _ 0x08 RAM+ ! ( 08 == C<* override )
|
||||
1 0x06 RAM+ ! ( 06 == C<? )
|
||||
INTERPRET
|
||||
R> 0x2e RAM+ ! R> 0x06 RAM+ !
|
||||
I 0x08 RAM+ @ = IF ( nested load )
|
||||
R> DROP ( C<* ) R> BLK@
|
||||
ELSE ( not nested )
|
||||
R> 0x08 RAM+ ! R> DROP ( BLK> )
|
||||
THEN ;
|
@ -23,9 +23,10 @@ $(BLKUNPACK): $(BLKPACK)
|
||||
|
||||
# z80c.bin is not in the prerequisites because it's a bootstrap
|
||||
# binary that should be updated manually through make updatebootstrap.
|
||||
forth0.bin:
|
||||
forth0.bin: $(SLATEST)
|
||||
cp z80c.bin $@
|
||||
cat stage1.fs >> $@
|
||||
$(SLATEST) $@
|
||||
cat pre.fs emul.fs >> $@
|
||||
|
||||
forth0-bin.h: forth0.bin $(BIN2C)
|
||||
$(BIN2C) KERNEL < forth0.bin | tee $@ > /dev/null
|
||||
|
@ -1,4 +1,3 @@
|
||||
CURRENT @ HERE !
|
||||
HERE @ 256 /MOD 2 PC! 2 PC!
|
||||
: EMIT 0 PC! ;
|
||||
: KEY 0 PC@ ;
|
2
emul/pre.fs
Normal file
2
emul/pre.fs
Normal file
@ -0,0 +1,2 @@
|
||||
CURRENT @ HERE !
|
||||
|
@ -14,6 +14,4 @@ H@ XOFF !
|
||||
282 LOAD ( boot.z80 )
|
||||
393 LOAD ( icore )
|
||||
(entry) _
|
||||
( Update LATEST )
|
||||
H@ XOFF @ - XOFF @ 8 + !
|
||||
H@ 256 /MOD 2 PC! 2 PC!
|
||||
|
BIN
emul/z80c.bin
BIN
emul/z80c.bin
Binary file not shown.
Loading…
Reference in New Issue
Block a user