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VE: don't emit chars higher than 0x7f

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Uninitialized blocks often contains garbage, and emitting it on
the TRS-80 4P results in serious visual glitches.
This commit is contained in:
Virgil Dupras 2020-12-22 18:34:03 -05:00
parent 20c38e5cd0
commit 2fa88176c0
2 changed files with 4 additions and 2 deletions
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5
blk.fs
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@ -804,7 +804,8 @@ CREATE PREVPOS 0 , CREATE PREVBLK 0 , CREATE xoff 0 ,
BLKDTY @ IF '*' EMIT THEN 4 nspcs ; BLKDTY @ IF '*' EMIT THEN 4 nspcs ;
: nums 17 1 DO 2 I + aty I . SPC SPC LOOP ; : nums 17 1 DO 2 I + aty I . SPC SPC LOOP ;
( ----- 127 ) ( ----- 127 )
: mode! ( c -- ) 4 col- CELL! ; : @emit C@ 0x20 MAX EMIT ; : mode! ( c -- ) 4 col- CELL! ;
: @emit C@ 0x20 MAX 0x7f MIN EMIT ;
: contents : contents
16 0 DO 16 0 DO
large? IF 3 ELSE 0 THEN I 3 + AT-XY large? IF 3 ELSE 0 THEN I 3 + AT-XY
@ -819,8 +820,8 @@ CREATE PREVPOS 0 , CREATE PREVBLK 0 , CREATE xoff 0 ,
width >= IF 64 COLS - xoff ! contents THEN THEN ; width >= IF 64 COLS - xoff ! contents THEN THEN ;
: setpos ( -- ) pos@ 3 + ( header ) SWAP ( y x ) xoff @ - : setpos ( -- ) pos@ 3 + ( header ) SWAP ( y x ) xoff @ -
large? IF 3 + ( gutter ) THEN SWAP AT-XY ; large? IF 3 + ( gutter ) THEN SWAP AT-XY ;
: cmv ( n -- , char movement ) acc@ * EDPOS @ + pos! ;
( ----- 128 ) ( ----- 128 )
: cmv ( n -- , char movement ) acc@ * EDPOS @ + pos! ;
: buftype ( buf ln -- ) : buftype ( buf ln -- )
3 OVER AT-XY KEY DUP EMIT 3 OVER AT-XY KEY DUP EMIT
DUP 0x20 < IF 2DROP DROP EXIT THEN DUP 0x20 < IF 2DROP DROP EXIT THEN

1
tools/.gitignore vendored
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@ -7,4 +7,5 @@
/blkpack /blkpack
/blkunpack /blkunpack
/blkup /blkup
/blkdown
/smsrom /smsrom