collapseos/cvm/forth.fs
Virgil Dupras b1e162b8a3 grid: change the meaning of CELL!
Replace the "g" arg (glyph) with "c" (character). The reason why "g"
was used was to save a "0x20 -" operation at all CELL! implementations,
but this came with too big a drawback: it made CELL! hardly usable
outside of the Grid subsystem, mostly because the user of CELL! would
often have to do "0x20 -".

For example, I want the SMS's Pad driver to use CELL! directly instead
of having to do EMIT+XYPOS-messing-around. I would have had to do a
"0x20 -" there.
2020-11-16 09:11:47 -05:00

16 lines
387 B
Forth

: COLS 80 ; : LINES 32 ;
: CURSOR! ( pos -- ) COLS /MOD 6 PC! ( y ) 5 PC! ( x ) ;
: CELL! ( c pos -- ) CURSOR! 0 PC! ;
: NEWLN ( ln -- ) DROP 0xa 0 PC! ;
SYSVARS 0x70 + CONSTANT GRID_MEM
402 403 LOADR ( Grid )
390 LOAD ( xcomp core high )
(entry) _
( Update LATEST )
PC ORG @ 8 + !
," BLK$ ' EFS@ BLK@* ! ' EFS! BLK!* ! GRID$ " EOT,
ORG @ 256 /MOD 2 PC! 2 PC!
H@ 256 /MOD 2 PC! 2 PC!