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17 lines
655 B
Plaintext
17 lines
655 B
Plaintext
: mode! ( c -- ) 4 col- 0 AT-XY ;
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: contents
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16 0 DO
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large? IF 3 ELSE 0 THEN I 3 + AT-XY
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64 I * BLK( + ( lineaddr ) xoff @ + DUP width + SWAP
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DO I C@ 0x20 MAX EMIT LOOP LOOP
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large? IF 3 16 gutter THEN ;
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: selblk BLK> @ PREVBLK ! BLK@ contents ;
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: pos! ( newpos -- ) EDPOS @ PREVPOS !
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DUP 0< IF DROP 0 THEN 1023 MIN EDPOS ! ;
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: xoff? pos@ DROP ( x )
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xoff @ ?DUP IF < IF 0 xoff ! contents THEN ELSE
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width >= IF 64 COLS - xoff ! contents THEN THEN ;
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: setpos ( -- ) pos@ 3 + ( header ) SWAP ( y x ) xoff @ -
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large? IF 3 + ( gutter ) THEN SWAP AT-XY ;
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: cmv ( n -- , char movement ) acc@ * EDPOS @ + pos! ;
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