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collapseos/blk/755
Virgil Dupras 6bc1738bfd pcat: implement (loop)
8086 asm is a lot terser than z80... Those indirect memory operations
are very handy.
2020-06-18 15:01:04 -04:00

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: OPrm CREATE C, DOES> C@ A, SWAP 3 LSHIFT OR A, ;
0x8a OPrm MOVr[], 0x8b OPrm MOVx[],
: OPmr CREATE C, DOES> C@ A, 3 LSHIFT OR A, ;
0x88 OPmr MOV[]r, 0x89 OPmr MOV[]x,
: OPrm+ ( r m off ) CREATE C, DOES>
C@ A, ROT 3 LSHIFT ROT OR 0x40 OR A, A, ;
0x8a OPrm+ MOVr[]+, 0x8b OPrm+ MOVx[]+,
0x3a OPrm+ CMPr[]+, 0x3b OPrm+ CMPx[]+,
: OPm+r ( m off r ) CREATE C, DOES>
C@ A, 3 LSHIFT ROT OR 0x40 OR A, A, ;
0x88 OPm+r MOV[]+r, 0x89 OPm+r MOV[]+x,