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; ffnumlu.lib 1/22/2012 dwg - macro to get number of logical units
ffnumlu macro
mvi c,RETCURR
call BDOS
mov c,a
call BISELDSK
lxi d,16+2+2 ; offset to end of DPH
dad d ; calc offset of 1st signature byte
mov a,m
endm
; eof - ffnumlu.lib