Omron HOME SECURITY SYSTEM - MOTION SENSOR FQM1-MMA21 - Manual (Page 297)

274
Programming Appendix A
Operand Description Notation Application examples
Specifying
an indirect
address
using a reg-
ister Indirect
address
(No offset) The bit or word with the memory
address contained in IR
@ will be speci-
fied.
Specify ,IR @ to specify bits and words
for instruction operands.
,IR0
,IR1
LD ,IR0
Loads the bit with the memory address
in IR0.
MOV #0001 ,IR1
Stores #0001 in the word with the
memory address in IR1.
Constant
offset The bit or word with the memory
address in IR
@ + or – the constant is
specified.
Specify +/– constant ,IR @. Constant off-
sets range from –2048 to +2047 (deci-
mal). The offset is converted to binary
data when the instruction is executed.
+5,IR0
+31,IR1
LD +5 ,IR0
Loads the bit with the memory address
in IR0 + 5.
MOV #0001 +31 ,IR1
Stores #0001 in the word with the
memory address in IR1 + 31
Auto Incre-
ment The contents of IR @ is incremented by
+1 or +2 after referencing the value as
an memory address.
+1: Specify ,IR @+
+2: Specify ,IR @ + +
,IR0 ++
,IR1 +
LD ,IR0 ++
Increments the contents of IR0 by 2
after the bit with the memory address
in IR0 is loaded.
MOV #0001 ,IR1 +
Increments the contents of IR1 by 1
after #0001 is stored in the word with
the memory address in IR1.
Auto Dec-
rement The contents of IR @ is decremented by
–1 or –2 after referencing the value as
an memory address.
–1: Specify ,–IR @
–2: Specify ,– –IR @
,– –IR0
,–IR1
LD ,– –IR0
After decrementing the contents of IR0
by 2, the bit with the memory address
in IR0 is loaded.
MOV #0001 ,–IR1
After decrementing the contents of IR1
by 1, #0001 is stored in the word with
the memory address in IR1.
Data Operand Data form Symbol Range Application example
16-bit con-
stant All binary data or
a limited range of
binary data Unsigned binary # #0000 to #FFFF ---
Signed decimal ± –32768 to
+32767 ---
Unsigned deci-
mal & &0 to &65535 ---
All BCD data or a
limited range of
BCD data BCD # #0000 to #9999 ---
32-bit con-
stant All binary data or
a limited range of
binary data Unsigned binary # #00000000 to
#FFFFFFFF ---
Signed decimal ± –2147483648 to
+2147483647 ---
Unsigned deci-
mal & &0 to
&4294967295 ---
All BCD data or a
limited range of
BCD data BCD # #00000000 to
#99999999 ---