collapseos/blk/362
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

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: (parseb) ( a -- n f )
( '0': ASCII 0x30 'b': 0x62 0x6230 )
DUP 1+ @ 0x6230 = NOT IF 0 EXIT THEN ( a 0 )
( We have "0b" prefix )
DUP C@ ( a len )
0 SWAP 1+ ( len+1 ) 3 DO ( a r )
OVER I + C@ ( a r c ) _ ( a r n )
DUP 0< IF 2DROP 0 UNLOOP EXIT THEN
SWAP 1 LSHIFT + ( a r*2+n ) LOOP
NIP 1 ;