collapseos/blk/671
Virgil Dupras f6ded7712e VE: add 't'
This is the first commit I do entirely in VE. It's a habit I'm planning
on taking as it helps a lot to find usability issues.
2020-06-11 18:12:01 -04:00

17 lines
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( L1 LBL! .. L1 ' RJMP LBL, )
: LBL! ( l -- ) PC SWAP ! ;
: LBL, ( l op -- ) SWAP @ 1- SWAP EXECUTE A,, ;
: SKIP, PC 0 A,, ;
: TO, ( opw pc )
( warning: pc is a PC offset, not a mem addr! )
2 * ORG @ + PC 1- H@ ( opw addr tgt hbkp )
ROT HERE ! ( opw tgt hbkp ) SWAP ROT EXECUTE H@ ! ( hbkp )
HERE ! ;
( L1 FLBL, .. L1 ' RJMP FLBL! )
: FLBL, ( l -- ) LBL! 0 A,, ;
: FLBL! ( l opw -- ) SWAP @ TO, ;
: BEGIN, PC ; : AGAIN?, ( op ) SWAP 1- SWAP EXECUTE A,, ;
: AGAIN, ['] RJMP AGAIN?, ;
: IF, ['] BREQ SKIP, ; : THEN, TO, ;