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https://github.com/hsoft/collapseos.git
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recipe/rc2014: use core libs from blkfs
This commit is contained in:
Virgil Dupras
parent
a2f164ecc3
commit
4d8574c1fe
13
blk/357
13
blk/357
@ -1,14 +1 @@
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0x20 CONSTANT ACIABUFSZ
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( Points to ACIA buf )
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: ACIA( [ ACIA_MEM 4 + LITN ] ;
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( Points to ACIA buf end )
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: ACIA) [ ACIA_MEM 6 + LITN ] ;
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( Read buf pointer. Pre-inc )
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: ACIAR> [ ACIA_MEM LITN ] ;
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( Write buf pointer. Post-inc )
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: ACIAW> [ ACIA_MEM 2 + LITN ] ;
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( This means that if W> == R>, buffer is full.
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If R>+1 == W>, buffer is empty. )
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358 360 LOADR
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29
blk/358
29
blk/358
@ -1,16 +1,13 @@
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: ACIA$
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H@ DUP DUP ACIA( ! ACIAR> !
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1+ ACIAW> ! ( write index starts one position later )
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ACIABUFSZ ALLOT
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H@ ACIA) !
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( setup ACIA
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CR7 (1) - Receive Interrupt enabled
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CR6:5 (00) - RTS low, transmit interrupt disabled.
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CR4:2 (101) - 8 bits + 1 stop bit
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CR1:0 (10) - Counter divide: 64 )
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0b10010110 ACIA_CTL PC!
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( setup interrupt )
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0xc3 0x4e RAM+ C! ( c3==JP, 4e==INTJUMP )
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['] ~ACIA 0x4f RAM+ !
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(im1)
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;
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0x20 CONSTANT ACIABUFSZ
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( Points to ACIA buf )
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: ACIA( [ ACIA_MEM 4 + LITN ] ;
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( Points to ACIA buf end )
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: ACIA) [ ACIA_MEM 6 + LITN ] ;
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( Read buf pointer. Pre-inc )
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: ACIAR> [ ACIA_MEM LITN ] ;
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( Write buf pointer. Post-inc )
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: ACIAW> [ ACIA_MEM 2 + LITN ] ;
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( This means that if W> == R>, buffer is full.
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If R>+1 == W>, buffer is empty. )
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28
blk/359
28
blk/359
@ -1,14 +1,16 @@
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: KEY
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( inc then fetch )
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ACIAR> @ 1+ DUP ACIA) @ = IF
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DROP ACIA( @
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THEN
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( As long as R> == W>-1, it means that buffer is empty )
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BEGIN DUP ACIAW> @ = NOT UNTIL
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ACIAR> !
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ACIAR> @ C@
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: ACIA$
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H@ DUP DUP ACIA( ! ACIAR> !
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1+ ACIAW> ! ( write index starts one position later )
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ACIABUFSZ ALLOT
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H@ ACIA) !
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( setup ACIA
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CR7 (1) - Receive Interrupt enabled
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CR6:5 (00) - RTS low, transmit interrupt disabled.
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CR4:2 (101) - 8 bits + 1 stop bit
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CR1:0 (10) - Counter divide: 64 )
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0b10010110 ACIA_CTL PC!
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( setup interrupt )
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0xc3 0x4e RAM+ C! ( c3==JP, 4e==INTJUMP )
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['] ~ACIA 0x4f RAM+ !
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(im1)
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;
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11
blk/360
11
blk/360
@ -1,7 +1,16 @@
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: KEY
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( inc then fetch )
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ACIAR> @ 1+ DUP ACIA) @ = IF
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DROP ACIA( @
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THEN
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( As long as R> == W>-1, it means that buffer is empty )
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BEGIN DUP ACIAW> @ = NOT UNTIL
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ACIAR> !
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ACIAR> @ C@
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;
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: EMIT
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( As long at CTL bit 1 is low, we are transmitting. wait )
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BEGIN ACIA_CTL PC@ 0x02 AND UNTIL
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( The way is clear, go! )
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ACIA_IO PC!
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;
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95
forth/blk.fs
95
forth/blk.fs
@ -1,95 +0,0 @@
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( I/O blocks )
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: BLKMEM+ 0x57 RAM+ @ + ;
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( n -- Fetches block n and write it to BLK( )
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: BLK@* 0 BLKMEM+ ;
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( n -- Write back BLK( to storage at block n )
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: BLK!* 2 BLKMEM+ ;
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( Current blk pointer in ( )
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: BLK> 4 BLKMEM+ ;
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( Whether buffer is dirty )
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: BLKDTY 6 BLKMEM+ ;
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: BLK( 8 BLKMEM+ ;
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: BLK$
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H@ 0x57 RAM+ !
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( 1024 for the block, 8 for variables )
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1032 ALLOT
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( LOAD detects end of block with ASCII EOT. This is why
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we write it there. EOT == 0x04 )
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4 C,
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0 BLKDTY !
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-1 BLK> !
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;
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( -- )
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: BLK!
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BLK> @ BLK!* @ EXECUTE
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0 BLKDTY !
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;
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( n -- )
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: BLK@
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DUP BLK> @ = IF DROP EXIT THEN
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BLKDTY @ IF BLK! THEN
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DUP BLK> ! BLK@* @ EXECUTE
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;
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: BLK!! 1 BLKDTY ! ;
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: .2 DUP 10 < IF SPC THEN . ;
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: LIST
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BLK@
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16 0 DO
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I 1+ .2 SPC
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64 I * BLK( + (print)
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CRLF
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LOOP
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;
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: _
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(boot<)
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DUP 4 = IF
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( We drop our char, but also "a" from WORD: it won't
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have the opportunity to balance PSP because we're
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EXIT!ing. )
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2DROP
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( We're finished interpreting )
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EXIT!
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THEN
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;
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: LOAD
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( save restorable variables to RSP )
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BLK> @ >R
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0x08 RAM+ @ >R
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0x06 RAM+ @ >R ( C<? )
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0x2e RAM+ @ >R ( boot ptr )
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BLK@
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( Point to beginning of BLK )
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BLK( 0x2e RAM+ !
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( 08 == C<* override )
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['] _ 0x08 RAM+ !
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( While we interpret, don't print "ok" after every word )
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1 0x06 RAM+ ! ( 06 == C<? )
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INTERPRET
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R> 0x2e RAM+ !
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R> 0x06 RAM+ !
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( Before we restore C<* are we restoring it to "_"?
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if yes, it means we're in a nested LOAD which means we
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should also load back the saved BLK>. Otherwise, we can
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ignore the BLK> from RSP. )
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I 0x08 RAM+ @ = IF
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( nested load )
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R> DROP ( C<* )
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R> BLK@
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ELSE
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( not nested )
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R> 0x08 RAM+ !
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R> DROP ( BLK> )
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THEN
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;
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( b1 b2 -- )
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: LOADR 1+ SWAP DO I DUP . CRLF LOAD LOOP ;
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42
forth/cmp.fs
42
forth/cmp.fs
@ -1,42 +0,0 @@
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( Words useful for complex comparison operations )
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: >= < NOT ;
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: <= > NOT ;
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: 0>= 0< NOT ;
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( n1 -- n1 true )
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: <>{ 1 ;
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( n1 f -- f )
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: <>} SWAP DROP ;
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: _|&
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( n1 n2 cell )
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>R >R DUP R> R> ( n1 n1 n2 cell )
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@ EXECUTE ( n1 f )
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;
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( n1 f n2 -- n1 f )
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: _|
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CREATE , DOES>
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( n1 f n2 cell )
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ROT IF 2DROP 1 EXIT THEN ( n1 true )
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_|&
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;
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: _&
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CREATE , DOES>
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( n1 f n2 cell )
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ROT NOT IF 2DROP 0 EXIT THEN ( n1 true )
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_|&
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;
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( All words below have this signature:
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n1 f n2 -- n1 f )
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' = _| |=
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' = _& &=
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' > _| |>
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' > _& &>
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' < _| |<
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' < _& &<
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203
forth/core.fs
203
forth/core.fs
@ -1,203 +0,0 @@
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: H@ HERE @ ;
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: IMMEDIATE
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CURRENT @ 1-
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DUP C@ 128 OR SWAP C!
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;
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: [ INTERPRET ; IMMEDIATE
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: ] R> DROP ;
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: LITS 34 , SCPY ;
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: LIT< WORD LITS ; IMMEDIATE
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: LITA 36 , , ;
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: '
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WORD (find) (?br) [ 4 , ] EXIT
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LIT< (wnf) (find) DROP EXECUTE
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;
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: ['] ' LITA ; IMMEDIATE
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: COMPILE ' LITA ['] , , ; IMMEDIATE
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: [COMPILE] ' , ; IMMEDIATE
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: BEGIN H@ ; IMMEDIATE
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: AGAIN COMPILE (br) H@ - , ; IMMEDIATE
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: UNTIL COMPILE (?br) H@ - , ; IMMEDIATE
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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?
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Ah, voice at last! Some lines above need comments
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BTW: Forth lines limited to 64 cols because of default
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input buffer size in Collapse OS
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"_": words starting with "_" are meant to be "private",
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that is, only used by their immediate surrondings.
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40 is ASCII for '('. We do this to simplify XPACK's task of
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not mistakenly consider '(' definition as a comment.
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LITS: 34 == litWord
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LITA: 36 == addrWord
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COMPILE: Tough one. Get addr of caller word (example above
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(br)) and then call LITA on it. )
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: +! SWAP OVER @ + SWAP ! ;
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: -^ SWAP - ;
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: ALLOT HERE +! ;
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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
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: THEN ( a -- | a: br cell addr )
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DUP H@ -^ SWAP ( a-H a )
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!
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; IMMEDIATE
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: ELSE ( a1 -- a2 | a1: IF cell a2: ELSE cell )
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COMPILE (br)
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2 ALLOT
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DUP H@ -^ SWAP ( a-H a )
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!
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H@ 2- ( push a. -2 for allot offset )
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; IMMEDIATE
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( During a CASE, the stack grows by 1 at each ENDOF so that
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we can fill all those ENDOF branching addrs. So that we
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know when to stop, we put a 0 on PSP. That's our stopgap. )
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: CASE 0 COMPILE >R ; IMMEDIATE
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: OF
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COMPILE I COMPILE =
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[COMPILE] IF
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; IMMEDIATE
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: ENDOF [COMPILE] ELSE ; IMMEDIATE
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( At this point, we have something like "0 e1 e2 e3 val". We
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want top drop val, and then call THEN as long as we don't
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hit 0. )
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: ENDCASE
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BEGIN
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DUP NOT IF
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DROP COMPILE R> COMPILE DROP EXIT
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THEN
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[COMPILE] THEN
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AGAIN
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; IMMEDIATE
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: CREATE
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(entry) ( empty header with name )
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11 ( 11 == cellWord )
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C, ( write it )
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;
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( We run this when we're in an entry creation context. Many
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things we need to do.
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1. Change the code link to doesWord
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2. Leave 2 bytes for regular cell variable.
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3. Write down RS' RTOS to entry.
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4. exit parent definition
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)
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: 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
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bytes after CURRENT. This allows a DOES word to use ","
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and "C," without messing everything up. )
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CURRENT @ 3 + HERE !
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( HERE points to where we should write R> )
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R> ,
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( We're done. Because we've popped RS, we'll exit parent
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definition )
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;
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: VARIABLE CREATE 2 ALLOT ;
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: CONSTANT CREATE , DOES> @ ;
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: / /MOD SWAP DROP ;
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: MOD /MOD DROP ;
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( In addition to pushing H@ this compiles 2 >R so that loop
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variables are sent to PS at runtime )
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: DO
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COMPILE SWAP COMPILE >R COMPILE >R
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H@
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; IMMEDIATE
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( Increase loop counter and returns whether we should loop. )
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: _
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R> ( IP, keep for later )
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R> 1+ ( ip i+1 )
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DUP >R ( ip i )
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I' = ( ip f )
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SWAP >R ( f )
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;
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( One could think that we should have a sub word to avoid all
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these COMPILE, but we can't because otherwise it messes with
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the RS )
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: LOOP
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COMPILE _ COMPILE (?br)
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H@ - ,
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COMPILE R> COMPILE DROP COMPILE R> COMPILE DROP
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; IMMEDIATE
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: LEAVE R> R> DROP I 1- >R >R ;
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: ROLL
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DUP NOT IF EXIT THEN
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1+ DUP PICK ( n val )
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SWAP 2 * (roll) ( val )
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SWAP DROP
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;
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: 2DUP OVER OVER ;
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: 2OVER 3 PICK 3 PICK ;
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: 2SWAP 3 ROLL 3 ROLL ;
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( a1 a2 u -- )
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: MOVE
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( u ) 0 DO
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SWAP DUP I + C@ ( a2 a1 x )
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ROT SWAP OVER I + ( a1 a2 x a2 )
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C! ( a1 a2 )
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LOOP
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2DROP
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;
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: DELW
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1- 0 SWAP C!
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;
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: PREV
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3 - DUP @ ( a o )
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- ( a-o )
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;
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: WORD(
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DUP 1- C@ ( name len field )
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127 AND ( 0x7f. remove IMMEDIATE flag )
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3 + ( fixed header len )
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-
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||||
;
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||||
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: FORGET
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' DUP ( w w )
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( HERE must be at the end of prev's word, that is, at the
|
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beginning of w. )
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WORD( HERE ! ( w )
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PREV CURRENT !
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;
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||||
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: EMPTY
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LIT< _sys (find) NOT IF ABORT THEN
|
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DUP HERE ! CURRENT !
|
||||
;
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||||
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( Drop RSP until I-2 == INTERPRET. )
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: EXIT!
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['] INTERPRET ( I )
|
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BEGIN ( I )
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DUP ( I I )
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R> DROP I 2- @ ( I I a )
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= UNTIL
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||||
DROP
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||||
;
|
||||
|
||||
( a -- a+1 c )
|
||||
: C@+ DUP C@ SWAP 1+ SWAP ;
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||||
73
forth/fmt.fs
73
forth/fmt.fs
@ -1,73 +0,0 @@
|
||||
( requires core, parse, cmp )
|
||||
|
||||
: _
|
||||
999 SWAP ( stop indicator )
|
||||
DUP 0 = IF '0' EXIT THEN ( 0 is a special case )
|
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BEGIN
|
||||
DUP 0 = IF DROP EXIT THEN
|
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10 /MOD ( r q )
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SWAP '0' + SWAP ( d q )
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AGAIN
|
||||
;
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||||
|
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: . ( n -- )
|
||||
( handle negative )
|
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DUP 0< IF '-' EMIT -1 * THEN
|
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_
|
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BEGIN
|
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DUP '9' > IF DROP EXIT THEN ( stop indicator, we're done )
|
||||
EMIT
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AGAIN
|
||||
;
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||||
|
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: ? @ . ;
|
||||
|
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: _
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DUP 9 > IF 10 - 'a' +
|
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ELSE '0' + THEN
|
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;
|
||||
|
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( For hex display, there are no negatives )
|
||||
|
||||
: .x
|
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256 MOD ( ensure < 0x100 )
|
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16 /MOD ( l h )
|
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_ EMIT ( l )
|
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_ EMIT
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||||
;
|
||||
|
||||
: .X
|
||||
256 /MOD ( l h )
|
||||
.x .x
|
||||
;
|
||||
|
||||
( 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
|
||||
;
|
||||
|
||||
( n a -- )
|
||||
: DUMP
|
||||
LF
|
||||
BEGIN
|
||||
OVER 1 < IF 2DROP EXIT THEN
|
||||
_
|
||||
SWAP 8 - SWAP
|
||||
AGAIN
|
||||
;
|
||||
@ -1,76 +0,0 @@
|
||||
( requires core, str )
|
||||
( string 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 )
|
||||
;
|
||||
|
||||
( 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 -
|
||||
;
|
||||
|
||||
: (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
|
||||
;
|
||||
|
||||
( 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 -
|
||||
;
|
||||
|
||||
: (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
|
||||
;
|
||||
|
||||
: (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*) !
|
||||
@ -1,38 +0,0 @@
|
||||
( Words allowing printing strings. Require core )
|
||||
( This used to be in core, but some drivers providing EMIT
|
||||
are much much easier to write with access to core words,
|
||||
and these words below need EMIT... )
|
||||
|
||||
: (print)
|
||||
BEGIN
|
||||
C@+ ( a+1 c )
|
||||
( exit if null )
|
||||
DUP NOT IF 2DROP EXIT THEN
|
||||
EMIT ( a )
|
||||
AGAIN
|
||||
;
|
||||
|
||||
: ,"
|
||||
BEGIN
|
||||
C<
|
||||
( 34 is ASCII for " )
|
||||
DUP 34 = IF DROP EXIT THEN C,
|
||||
AGAIN ;
|
||||
|
||||
: ."
|
||||
34 , ( 34 == litWord ) ," 0 C,
|
||||
COMPILE (print)
|
||||
; IMMEDIATE
|
||||
|
||||
: ABORT" [COMPILE] ." COMPILE ABORT ; IMMEDIATE
|
||||
|
||||
: (uflw) ABORT" stack underflow" ;
|
||||
|
||||
: 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 ;
|
||||
@ -5,15 +5,7 @@ EDIR = $(BASEDIR)/emul
|
||||
STAGE2 = $(EDIR)/stage2
|
||||
EMUL = $(BASEDIR)/emul/hw/rc2014/classic
|
||||
|
||||
PATHS = \
|
||||
$(FDIR)/core.fs \
|
||||
$(FDIR)/cmp.fs \
|
||||
$(FDIR)/parse.fs \
|
||||
$(BASEDIR)/drv/acia.fs \
|
||||
$(FDIR)/print.fs \
|
||||
$(FDIR)/fmt.fs \
|
||||
$(FDIR)/link.fs \
|
||||
run.fs
|
||||
PATHS = $(FDIR)/link.fs run.fs
|
||||
STRIPFC = $(BASEDIR)/tools/stripfc
|
||||
|
||||
.PHONY: all
|
||||
|
||||
@ -24,4 +24,9 @@ H@ XOFF !
|
||||
(entry) _
|
||||
( Update LATEST )
|
||||
H@ XOFF @ - XOFF @ 8 + !
|
||||
422 441 XPACKR ( core cmp )
|
||||
446 452 XPACKR ( parse )
|
||||
358 360 XPACKR ( acia.fs )
|
||||
442 445 XPACKR ( print )
|
||||
459 463 XPACKR ( fmt )
|
||||
H@ 256 /MOD 2 PC! 2 PC!
|
||||
|
||||
Loading…
Reference in New Issue
Block a user