Sharp CE-150 - Page 289

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2-4-9. Subroutine jump instructions
® SJP (Subrou tine J umP)
·r hc conten ts o ft he pro gr arn counter. \v hi ch sho\v the next progra n1 Cx('tutingaddrcss.
are sto
re d in the stack pointer. then th e co ntrol j um p~ to the subroutine ad dr ess
represented
by i and j of t he 16 - bi t immediate data.
No change
takes place in O ag:;.
• Fornlat
S.IP i.J
(EX) SJP E OH . OOH
•Op eration
Pl. - (S)
s - 1
PH - (S)
S - 1
i - · PH
i- Pl.
4003H is stored i r~ Ule stack po i nt e r- by
th P. execution ot STP in struction and
jllmps to lhe subroul;ne of EOO OH.
W it h the ATN i nst ruc t io n of the
s
ub routi ne , the co nt rol returns to 400 3H
10 n ~s um e previous p rogr am exec ut ion.
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