Omron FQM1-CM001, FQM1-MMA21, FQM1-MMP21 operation manual Programming, Appendix A, Operand

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

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