DL205 User Manual, 4th Edition, Rev. B
5–61
Chapter 5: Standard RLL Instructions - Accumulator/Stack Load and Output Data
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
Load Address (LDA)
The Load Address instruction is a 16-bit
instruction. It converts any octal value or address to
the HEX equivalent value and loads the HEX value
into the accumulator. This instruction is useful
when an address parameter is required since all
addresses for the DL205 system are in octal.
NOTE:
Two consecutive Load instructions will place the value of the first load instruction onto the
accumulator stack.
In the following example when X1 is on, the octal number 40400 will be converted to a HEX
4100 and loaded into the accumulator using the Load Address instruction. The value in the
lower 16 bits of the accumulator is copied to V2000 using the Out instruction.
O aaa
LDA
1
B
ENT
4
E
0
A
4
E
0
A
0
A
ENT
Handheld Programmer Keystrokes
Direct
SOF
T
LD
A
O
40400
X
1
L
oad The HE
X
e
quiv
alent to
the o
c
tal n
u
m
b
er
i
nto the
lo
w
er 1
6
bi
ts o
f
the
a
ccu
m
u
lator
OU
T
V2
000
C
o
p
y the
v
al
u
e
i
n lo
w
er 1
6
bi
ts o
f
the a
ccu
m
u
lator to
V2
000
V2
000
A
cc.
He
x
ade
ci
mal
4 1 0 0
4 1 0 0
0 0 0 0
4 1 0 0
Oc
tal
4 0 4 0 0
The
u
n
u
sed a
ccu
m
u
lator
bi
ts are set to
z
ero
S
T
R
$
S
H
F
T
AN
DS
T
L
3
D
0
A
OU
T
GX
S
H
F
T
AN
D
V
2
C
0
A
0
A
ENT
0
A
Operand Data
Type
DL230 Range
DL240 Range
DL250-1 Range
DL260 Range
aaa
aaa
aaa
aaa
Octal Address O
All V-memory
See Memory map
All V-memory
See Memory map
All V-memory
See Memory map
All V-memory
See Memory map
þ
þ
þ
þ
230
240
250-1
260
Discrete Bit Flags
Description
SP76
On when the value loaded into the accumulator by any instruction is zero.
DS
Used
HPP Used
