Texas Instruments MSP50C614 manual Endloop End Loop, Argument, it assumes n =1, BEGLOOP, Inte

Individual Instruction Descriptions

4.14.15 ENDLOOP					End Loop
Syntax
	[label]		name	#						Clock, clk			Word, w				With RPT, clk					Class
		ENDLOOP		[n]							1			1					N/R				9d
Execution			If (R4 ≥	0)
			decrement R4 by n (1 or 2)
			PC ⇐		first address after BEGLOOP
			else
			NOP
			PC ⇐ PC + 1
Flags Affected			None
Opcode
Instructions				16	15	14	13	12	11	10	9	8	7		6	5		4		3	2	1		0
ENDLOOP n				1	1	1	1	1	1	1	1	0	0		0	0		1		0	0	0		n
Description			This instruction marks the end of a loop defined by BEGLOOP. If register R4
			is not negative, R4 is decremented by n and the loop is executed again
			beginning with the first instruction after the BEGLOOP. If R4 is negative, a
			NOP instruction is executed and program exits the loop. Interrupts (queued by
			BEGLOOP) are processed according to their priority. This instruction results
			in an overhead of one instruction cycle per loop cycle compared to two
			instruction cycle if branching is used. If ENDLOOP is used without any
			argument, it assumes n =1.
See Also			BEGLOOP, INTE
Example 4.14.15.1			See Example 4.14.7.1 in BEGLOOP.

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