;	PDP-11 TIMING PROGRAM
R0=%0
R1=%1
R2=%2
R3=%3
R4=%4
R5=%5
SP=%6
PC=%7
.=2000
START:	MOV	PC,SP
	TST	-(SP)
	HALT
	MOV	#4.,C2
LOOP1:	MOV	#25000.,C1
LOOP2:	MOV	#C,R0
	MOV	#B,R1
	MOV	A,C
	MOV	A+2,C+2
	MOV	A+4,C+4
	JSR	PC,@#TIMER
	DEC	C1
	BGT	LOOP2
	DEC	C2
	BGT	LOOP1
	HALT
	.WORD	240		;NOP INSTRUCTION
	BR	START
TIMER:	RTS	PC
A:	.WORD	0,0,0
B:	.WORD	0,0,0
C:	.WORD	0,0,0
C1:	.WORD	0
C2:	.WORD	0
	.END	START
                                                                                                                                                                                                       