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48
All and
more about
Sharp
PC-1500
at
http:f/www.PC-1500.info
@
BVR
(Branch
It
V Reset)
If
V=O.
it jumps
by relati'e
address.
Ir
V=
I.
it
executes
the next
program
>tcp.
i\o
change
rnkes
place in
flag.~.
•
Formal
BVR+
i
BVR-
i
@
LOP
(LOoP)
If
borro"
is
not produced after subtracting -1- from
the
UL
register. the program
counter is
subtrac1cd by
the immed
iate
data.
then i1
j
umps to
relative
address
for next
program
exc-cu1ion.
If
1hcrc
is
b<>rrow.
(UL<OJ. it
proceeds to the
succeeding program
step.
No
change
takes place
in Oags.
•
F·orn1a
t
LO
P
i
(EX)
LOPS
1'
=
40051
1
UL
•
OSll
•
011cralion
UL-
1
-
UI.
!
O
:
I'
-
i
-
P
Borrow
=
I:
To
succeeding >tcp
'
.--
>
4000H
P
=
l,QOOH
~
U!.=04H
Wl"cn
Ul. ..:O
4003H
lOP
4004H
OSH
<00511
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not sale
this
PDF !!!
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