AutomationDirect DL205 - Page 341

DL205 User Manual, 4th Edition, Rev. D
5-117
Chapter 5: Standard RLL Instructions
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
Add Binary Top of Stack (ADDBS)
Add Binary Top of Stack instruction is a 32-bit instruction
that adds the binary value in the accumulator with the
binary value in the first level of the accumulator stack.
The result resides in the accumulator. The value in the
first level of the accumulator stack is removed, and all stack
values are moved up one level.
NOTE: Status flags are valid only until another instruction uses the same flag.
In the following example, when X1 is on, the value in V1400 and V1401 will be loaded into the
accumulator using the Load Double instruction. The value in V1420 and V1421 is loaded into
the accumulator using the Load Double instruction, pushing the value previously loaded in the
accumulator onto the accumulator stack. The binary value in the first level of the accumulator
stack is added with the binary value in the accumulator using the Add Stack instruction. The
value in the accumulator is copied to V1500 and V1501 using the Out Double instruction.




230
240
250-1
260
ADDBS
Discrete Bit Flags Description
SP63 On when the result of the instruction causes the value in the accumulator to be zero
SP66 On when the 16-bit addition instruction results in a carry
SP67 On when the 32-bit addition instruction results in a carry
SP70 On anytime the value in the accumulator is negative
SP73 On when a signed addition or subtraction results in a incorrect sign bit
LDD
V1400
X1 Load thevalue in V1400 and
V1401 into theaccumulator
LDD
V1420
Load thevalue in V1420 and
V1421 into theaccumulator
OUTD
V1500
Copy thevalue in the
accumulatortoV1500
and V1501
XXXXXXXXLevel 1
XXXXXXXXLevel 2
XXXXXXXXLevel 3
XXXXXXXXLevel 4
XXXXXXXXLevel 5
XXXXXXXXLevel 6
XXXXXXXXLevel 7
XXXXXXXXLevel 8
003A50C6Level 1
XXXXXXXX
Level 2
XXXXXXXXLevel 3
XXXXXXXX
Level 4
XXXXXXXXLevel 5
XXXXXXXX
Level 6
XXXXXXXXLevel 7
XXXXXXXX
Level 8
ADDBS
Addthe binaryvalue in the
accumulator withthe binary
valueinthe firstlevel of the
accumulatorstack
Acc.
V1400
50C6
003A 50C6
V1401
003A
Acc.
V1420
B 05F
0017 B 05F
V1421
0017
Accumulatorstack
after1st LDD
Accumulatorstack
after 2nd LDD
Acc.
0052 0 125
0052 0 125
Handheld Programmer Keystrokes
SHFT
ANDST
L
3
D
STR
$
SHFT
3
D
3
D
OUT
GX
SHFT
3
D
1
B
5
F
0
A
0
A
ENT
1
B
ENT
1
B
4
E
0
A
0
A
ENT
ENT
SHFT
ANDST
L
3
D
1
B
4
E
2
C
0
A
ENT
3
D
1
B
RST
S
3
D
0
A
DirectSOFT
DS Used
HPP Used