AutomationDirect DL205 - Page 321

DL205 User Manual, 4th Edition, Rev. D
5-97
Chapter 5: Standard RLL Instructions
1
2
3
4
5
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8
9
10
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A
B
C
D
Divide (DIV)
Divide is a 16-bit instruction that divides the BCD value
in the accumulator by a BCD value (Aaaa), which is either
a V-memory location or a 4-digit (max) constant. The first
part of the quotient resides in the accumulator, and the
remainder resides in the first stack location.
NOTE: The status flags are only valid until another instruction that uses the same flags is executed.
In the following example, when X1 is on, the value in V2000 will be loaded into the accumulator
using the Load instruction. The value in the accumulator will be divided by the value in V2006
using the Divide instruction. The value in the accumulator is copied to V2010 using the Out
instruction.
DIV
A aaa




230
240
250-1
260
Discrete Bit Flags Description
SP53 On when the value of the operand is larger than the accumulator can work with
SP63 On when the result of the instruction causes the value in the accumulator to be zero
SP70 On anytime the value in the accumulator is negative
SP75 On when a BCD instruction is executed and a NON-BCD number was encountered
Operand Data Type DL230 Range DL240 Range DL250-1 Range DL260 Range
A aaa aaa aaa aaa
V-memory V All (See page 3-53) All (See page 3-54) All (See page 3-55) All (See page 3-56)
Pointer P -
All V-memory
(See page 3-54)
All V-memory
(See page 3-55)
All V-memory
(See page 3-56)
Constant K 1-9999 1-9999 1-9999 1-9999
DirectSOFT
Handheld Programmer Keystrokes
LD
V2000
X1
Load the value in V2000 into
the lower 16 bits of the
accumulator
DIV
V2006
The value in the
accumulator is divided by
the value in V2006
OUT
V2010
Copy the value in the lower
16 bits of the accumulator to
V2010
V2010
5
(V2006)
(Accumulator)
0
5
V2000
000
100
000000
50
Acc.
100
The unused accumulator
bits are set to zero
0000000 0
First stack location contains
the remainder
STR
$
SHFT
ANDST
L
3
D
SHFT
3
D
8
I
AND
V
OUT
GX
SHFT
AND
V
2
C
0
A
1
B
0
A
ENT
1
B
ENT
2
C
0
A
0
A
0
A
ENT
2
C
0
A
0
A
ENT
6
G
÷
DS Used
HPP Used