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2 Commits

Author SHA1 Message Date
Virgil Dupras
b8ea515612 Add word WIPE 2020-04-27 21:28:34 -04:00
Virgil Dupras
2b2ccad96c Add word FILL 2020-04-27 21:22:06 -04:00
7 changed files with 17 additions and 14 deletions

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@ -10,7 +10,7 @@ C! c a -- Store byte c in address a
CURRENT -- a Set a to wordref of last added entry.
CURRENT* -- a A pointer to active CURRENT*. Useful
when we have multiple active dicts.
FILL a n b -- Fill n bytes at addr a with val b.
HERE -- a Push HERE's address
H@ -- a HERE @
MOVE a1 a2 u -- Copy u bytes from a1 to a2, starting
with a1, going up.
(cont.)

2
blk/051 Normal file
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@ -0,0 +1,2 @@
MOVE a1 a2 u -- Copy u bytes from a1 to a2, starting
with a1, going up.

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@ -5,7 +5,7 @@ LIST n -- Prints the contents of the block n on screen
in the form of 16 lines of 64 columns.
LOAD n -- Interprets Forth code from block n
LOADR n1 n2 -- Load block range between n1 and n2, inclusive.
WIPE -- Empties current block

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@ -3,9 +3,9 @@
and ABORT on mismatch. )
: AT28! ( n a -- )
2DUP C!
( as long as writing operation is running, IO/6 will toggle at each
read attempt. We know that write is finished when we read the same
value twice. )
( as long as writing operation is running, IO/6 will toggle
at each read attempt. We know that write is finished when
we read the same value twice. )
BEGIN ( n1 a )
DUP C@ ( n1 a n2 )
OVER C@ ( n1 a n2 n3 )

15
blk/434
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@ -1,5 +1,4 @@
( a1 a2 u -- )
: MOVE
: MOVE ( a1 a2 u -- )
( u ) 0 DO
SWAP DUP I + C@ ( a2 a1 x )
ROT SWAP OVER I + ( a1 a2 x a2 )
@ -7,10 +6,10 @@
LOOP
2DROP
;
: DELW 1- 0 SWAP C! ;
: PREV
3 - DUP @ ( a o )
- ( a-o )
: FILL ( a n b -- )
SWAP 2 PICK + ( a b a+n ) ROT ( b a+n a ) DO ( b )
DUP I C!
LOOP
;
: DELW 1- 0 SWAP C! ;
: PREV 3 - DUP @ - ;

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@ -1,2 +1,4 @@
( b1 b2 -- )
: LOADR 1+ SWAP DO I DUP . CRLF LOAD LOOP ;
: WIPE BLK( 1024 0 FILL BLK!! ;

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