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705d68deec
With KEY and EMIT being switch words, most of the high layer can be defined before drivers. In addition to this change, I've compacted core blocks which were becoming quite sparse.
36 lines
742 B
Forth
36 lines
742 B
Forth
0xff00 CONSTANT RS_ADDR
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0xfffa CONSTANT PS_ADDR
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RS_ADDR 0x80 - CONSTANT SYSVARS
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0 CONSTANT HERESTART
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5 LOAD ( z80 assembler )
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262 LOAD ( xcomp )
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282 LOAD ( boot.z80.decl )
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270 LOAD ( xcomp overrides )
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283 335 LOADR ( boot.z80 )
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353 LOAD ( xcomp core low )
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: (emit) 0 PC! ;
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: (key) 0 PC@ ;
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: EFS@
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1 3 PC! ( read )
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256 /MOD 3 PC! 3 PC! ( blkid )
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BLK( 256 /MOD 3 PC! 3 PC! ( dest )
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;
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: EFS!
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2 3 PC! ( write )
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256 /MOD 3 PC! 3 PC! ( blkid )
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BLK( 256 /MOD 3 PC! 3 PC! ( dest )
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;
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: COLS 80 ; : LINES 32 ;
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: AT-XY 6 PC! ( y ) 5 PC! ( x ) ;
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390 LOAD ( xcomp core high )
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(entry) _
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( Update LATEST )
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PC ORG @ 8 + !
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," BLK$ "
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," ' EFS@ BLK@* ! "
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," ' EFS! BLK!* ! "
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EOT,
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ORG @ 256 /MOD 2 PC! 2 PC!
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H@ 256 /MOD 2 PC! 2 PC!
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