Sharp PC-1500 Technical Reference Manual page 38

All and more about Sharp PC-1500 at http://www.PC-1500.info
2-4-4. Transfer and search instructions
@ LOA
(LoaO Ace)
The
contents or the RI. register.RH register. o r the internal memory arc tr:rnsfcrrcd to
the accumulator.
Only
the
flag
Z
changes.
•Format
LDA
RL
L. DA RH
LL>A (Rrcg)
L.L>A li(Rreg)
I.DA
(ah)
I.DA #(a h)
(EX) LOA XL
• Operalion
[Operand ) -
A
F lag
Z
I:
when
(operandi
c
OOM
0:
when [opc rnndJ
¢
0011
XL= O O O I 0 0 0 0 Execute XL-
j
0 0 0 1 0 0 0 0
@
LOE (Load and Decrement)
A• 0 0 0
t
0 0 0 0
Z= O
T he contents of the externa l memo ry (R register) are
transfcr~d
to the accumulato r".
then .. I .. is decremented from R register.
Only the flag Z changes.
• Forntat
I.DE Rrcg
(EX) LOE Yreg
• Operation
(Rreg) - A
Rrcg - I - Rrcg
Flag
z
I: when ( Rrcg)
=
00 11
0: when (R rcg)
¥"-
0011
Conients
=
j
O I O t I O 0 O
l
• \ =
j
0 I 0 I 1 0 0
01
of
202.Ah .
Execute ·
~
Yrcg ~ 202 Ali ¥rog- 2029H
z-o
Do not sale this
PDF !!!
33