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blk/001
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blk/001
@ -2,7 +2,7 @@ MASTER INDEX
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3 Usage 30 Dictionary
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70 Implementation notes 100 Block editor
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120 Visual Editor 150 Extra words
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150 Extra words
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200 Z80 assembler 260 Cross compilation
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280 Z80 boot code 350 Core words
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410 PS/2 keyboard subsystem 420 Bootstrap guide
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blk/064
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blk/064
@ -14,3 +14,5 @@ LOADR+ n1 n2 -- Relative ranged load.
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WIPE -- Empties current block
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16
blk/120
16
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@ -1,16 +0,0 @@
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Visual Editor
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This editor, unlike the Block Editor (B100), is grid-based
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instead of being command-based. It requires the AT-XY, COLS
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and LINES words to be implemented.
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It is loaded with "125 LOAD" and invoked with "VE".
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This editor uses 17 lines. The top line is the status line and
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the 16 others are contents lines. The content shown is that
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of the currently selected block.
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All keystrokes are directly interpreted by VE and have the
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effect described below.
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(cont.)
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@ -1,16 +0,0 @@
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Pressing a 0-9 digit accumulates that digit into what is named
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the "modifier". That modifier affects the behavior of many
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keystokes described below. The modifier starts at zero, but
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most commands interpret a zero as a 1 so that they can have an
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effect.
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'G' selects the block specified by the modifier as the current
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block. Any change madde to the previously selected block is
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saved beforehand.
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'[' and ']' advance the selected block by modifier.
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';' resets the modifier
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H and L move the cursor by "modifier" characters. J and K, by
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lines.
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14
blk/126
14
blk/126
@ -1,14 +0,0 @@
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CREATE CMD 2 C, '$' C, 0 C,
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VARIABLE ACC
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VARIABLE POS
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: 0acc 0 ACC ! ;
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: acc@ ACC @ 1 MAX 0acc ;
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: num ACC @ SWAP _pdacc IF DROP ELSE ACC ! THEN ;
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: nspcs ( n -- , spit n space ) 0 DO SPC LOOP ;
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: aty 0 SWAP AT-XY ;
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: clrln DUP aty COLS nspcs aty ;
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: clrscr LINES 0 DO I clrln LOOP ;
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: status 0 clrln ." BLK" SPC BLK> ? SPC ACC ?
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SPC POS @ 64 /MOD . ',' EMIT . ;
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: contents 1 aty BLK> @ LIST ;
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: selblk BLK@ contents ;
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15
blk/127
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blk/127
@ -1,15 +0,0 @@
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: setpos POS @ 64 /MOD 1+ ( status line ) AT-XY ;
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: pos+ POS @ + 1024 MOD POS ! ;
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: cmv ( n -- , char movement ) acc@ * pos+ ;
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: $; 0acc ;
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: $G ACC @ selblk 0acc ;
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: $[ BLK> @ acc@ - selblk ;
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: $] BLK> @ acc@ + selblk ;
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: $H -1 cmv ; : $L 1 cmv ; : $K -64 cmv ; : $J 64 cmv ;
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: handle ( c -- f )
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UPPER DUP '0' '9' =><= IF num 0 EXIT THEN
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DUP CMD 2+ C! CMD FIND IF EXECUTE ELSE DROP THEN
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'Q' = ;
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: VE clrscr 0acc 0 POS ! contents
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BEGIN status setpos KEY handle UNTIL 18 aty ;
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@ -1,2 +0,0 @@
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: LOWER DUP 'A' 'Z' =><= IF 32 + THEN ;
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: UPPER DUP 'a' 'z' =><= IF 32 - THEN ;
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@ -54,10 +54,6 @@ int main(int argc, char *argv[])
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}
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strncpy(buf+(blkid*1024)+(i*64), line, cnt-1);
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}
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ssize_t cnt = getline(&line, &n, fp);
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if (cnt > 0) {
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fprintf(stderr, "blk %s has more than 16 lines\n", ep->d_name);
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}
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free(line);
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}
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fwrite(buf, 1024, blkcnt, stdout);
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