figForth Word - */

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*/ n1 n2 n3 — n4

Leave the ratio n4 = n1*n2/n3 where all are signed 16-bit numbers

Retention of an intermediate 31 bit product permits greater accuracy than would be available with the sequence:

n1 n2 * n3 /

NFA:    00724D 82             DB   82H
        00724E 2A             DB   "*"
        00724F AF             DB   '/'+80H
LFA:    007250 0172           DW   MSSLA-6
CFA:    007252 3C28     SSLA: DW   DOCOL     ;   :
PFA:    007254 F571           DW   SSMOD     ;   */MOD
        007256 E826           DW   SWAP      ;   SWAP
        007258 CC26           DW   DROP      ;   DROP
        00725A 1725           DW   SEMIS     ;   ;

The Meaning of the Dictionary Fields:

NFALFACFAPFA


Updated: 1st September 2022 by David Husband
© 2021 David Husband, a.k.a. Baremetal Engineer Extraordinaire
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