Chapter 9 Instruction list
Manual System ADAM 821x
8-8
ADAM 8000 Manual CPU 821x – Rev 1.1
The values are analyzed or set by the instructions.
The status word is 16Bit wide.
Bit
Assignment
Description
0
/FC
First check bit*
1
RLO
Result of (previous) logic instruction
2 STA
Status*
3 OR
Or*
4 OS
Stored
overflow
5 OV
Overflow
6 CC0
Condition
code
7 CC1
Condition
code
8 BR
Binary
result
9 to 15
not used
-
*
Bit may not be analyzed with the instruction L STW in the user application, for the Bit isn't updated
during application run-time.
Addressing examples
Addressing example
Description
Immediate addressing
L +27
Load 16Bit integer constant "27" in ACCU1.
L L
#
-1
Load 32Bit integer constant "-1" in ACCU1.
L 2
#
1010101010101010 Load binary constant in ACCU1.
L DW
#
16
#
A0F0_BCFD
Load hexadecimal constant in ACCU1.
L 'End'
Load ASCII code in ACCU1.
L T
#
500ms
Load time value in ACCU1.
L C
#
100
Load counter value in ACCU1.
L B
#
(100,12)
Load constant as 2Byte.
L B
#
(100,12,50,8)
Load constant as 4Byte.
L P
#
10.0
Load area-internal pointer in ACCU1.
L P
#
E20.6
Load area-crossing pointer in ACCU1.
L -2.5
Load real number in ACCU1.
L D
#
1995-01-20
Load date.
L TOD
#
13:20:33.125
Load time-of-day.
Direct addressing
A I 0.0
AND operation of input bit 0.0
L IB 1
Load input byte 1 in ACCU1.
L IW 0
Load input word 0 in ACCU1.
L ID 0
Load input double word 0 in ACCU1.
Indirect addressing timer/counter
Status word
(16Bit)
