collapseos/blk/670
Virgil Dupras e0bc14e55c avra: implement BR*
Getting good! still advancing on ps2ctl in sms/kbd and still
matching reference binary.
2020-05-18 20:34:06 -04:00

12 lines
371 B
Plaintext

( L1 LBL! .. L1 ' RJMP LBL, )
: LBL! ( l -- ) PC SWAP ! ;
: LBL, ( l op -- ) SWAP @ 1- SWAP EXECUTE A,, ;
( L1 FLBL, .. L1 ' RJMP FLBL! )
: FLBL, ( l -- ) LBL! 0 A,, ;
: FLBL! ( l opw -- )
( warning: l is a PC offset, not a mem addr! )
SWAP @ 2 * ORG @ + PC 1- H@ ( opw addr tgt hbkp )
ROT HERE ! ( opw tgt hbkp ) SWAP ROT EXECUTE H@ ! ( hbkp )
HERE ! ;