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collapseos/blk/357
Virgil Dupras 705d68deec Move most of the high layer of comp core into the low one
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.
2020-10-28 18:18:00 -04:00

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( r c -- r f )
( Parse digit c and accumulate into result r.
Flag f is 0 when c was a valid digit, 1 when c was WS,
-1 when c was an invalid digit. )
: _pdacc
DUP 0x21 < IF DROP 1 EXIT THEN
( parse char )
( if bad, return "r -1" )
'0' -
DUP 10 < NOT IF DROP -1 EXIT THEN
( good, add to running result )
SWAP 10 * + ( r*10+n )
0 ( good )
;