/INSTRUCTION TEST - 1
/TAPE 1	.


*0
	0
	JMP 1
	0002
	0003
	0
	0000
HALT,	HLT
NOOP,	NOP
	0

	/CONSTANTS AND VARIABLES
*20
K0000,	0000
K0001,	0001
K0002,	0002
K0004,	0004
K0010,	0010
K0020,	0020
K0040,	0040
K0100,	0100
K0200,	0200
K0400,	0400
K1000,	1000
K2000,	2000
K4000,	4000
K7776,	7776
K7775,	7775
K7773,	7773
K7767,	7767
K7757,	7757
K7737,	7737
L7677,	7677
K7577,	7377
K7377,	7377
K6777,	6777
K5777,	5777
K3777,	3777
K7777,	7777
K5252,	5252
K2525,	2525
K6000,	6000
K7000,	7000
K7400,	7400
K7600,	7600
K7740,	7740
K7760,	7760
K7770,	7770
K7774,	7774
K0003,	0003
K0007,	0007
K0067,	0067
K0017,	0017
K0037,	0037
K0077,	0077
K0177,	0177
K0377,	0377
K0777,	0777
K1777,	1777
K7700,	7700

*144
/TAD,CLA,HLT,TEST
	START,	TAD K7777
	CLA
	HLT		/AC SHOULD=0
			/SET SR TO 7777, CONTINUE
/SKIP TEST
	SKP
	HLT		/SKP FAILED
/SZA TEST 1
	CLA
	SEA
	HLT		/SEA SHOULD HAVE SKIPPED
			/AC SHOULD EQUAL ZERO
	SNA
	SKP
	HLT		/SNA SHOULD NOT HAVE SKIPPED
			/AC SHOULD EQUAL ZERO
/SZA TEST 2
	CLA
	TAD K4000
	SEA
	SKP
	HLT		/SEA SHOULD NOT HAVE SKIPPED
			/AC SHOULD EQUAL 4000
	SNA
	HLT		/SNA SHOULD HAVE SKIPPED
			/AC SHOULD EQUAL 4000
/SZA TEST 3
	CLA
	TAD K2000
	SZA
	SKP
	HLT		/SZA SHOULD NOT HAVE SKIPPED
			/AC SHOULD EQUAL 2000
	SNA
	HLT		/SNA SHOULD HAVE SKIPPED
	NOP		/AC SHOULD EQUAL 2000
	NOP
	NOP

*200
/SZA TEST 4
	CLA
	TAD K1000
	SZA
	SKP
	HLT		/SZA SHOULD NOT HAVE SKIPPED
			/AC SHOULD EQUAL 1000
	SNA
	HLT		/SNA SHOULD NAVE SKIPPED
			/AC SHOULD EQUAL 10000
/SZA TEST 5
	CLA
	TAD K0400
	SZA
	SKP
	HLT		/SZA SHOULD NUT HAVE SKIPPED
			/AC SHOULD EQUAL 0400
	SNA
	HLT		/SNA SHOULD HAVE SKIPPED
			/AC SHOULD EQUAL 0400
/SZA TEST 6
	CLA
	TAD K0200
	SZA
	SKP
	HLT		/SZA SHOULD NOT HAVE SKIPPED
			/AC SHOULD EQUAL 0200
	SNA
	HLT		/SNA SHOULD HAVE SKIPPED
			/AC SHOULD EQUAL 0200
/SZA TEST 7
	CLA
	TAD K0100
	SZA
	SKP
	HLT		/SZA SHOULD NOT HAVE SKIPPED
			/AC SHOULD EQUAL 0100
	SNA
	HLT		/SNA SHOULD HAVE SKIPPED
			/AC SHOULD EQUAL 0100
/SEA TEST 8
	CLA
	TAD K0040
	SEA
	SKP
	HLT		/SEA SHOULD NOT HAVE SKIPPED
			/AC SHOULD EQUAL 0040
	SNA
	HLT		/SNA SHOULD HAVE SKIPPED
			/AC SHOULD EQUAL 0040
/SZA TEST 9
	CLA
	TAD K0020
	SZA
	SKP
	HLT		/SZA SHOULD NOT HAVE SKIPPED
			/AC SHOULD EQUAL 0020
	SNA
	HLT		/SNA SHOULD HAVE SKIPPED
			/AC SHOULD EQUAL 0020
/SEA TEST 10
	CLA
	TAD K0010
	SZA
	SKP
	HO		/SZA SHOULD NOT HAVE SKIPPED
			/AC SHOULD EQUAL 0010
	SNA
	HLT		/SNA SHOULD HAVE SKIPPED
			/AC SHOULD EQUAL 0010
/SZA TEST 11
	CLA
	TAD K0004
	SZA
	SKP
	HLT		/SZA SHOULD NOT HAVE SKIPPED
			/AC SHOULD EQUAL 0004
	SNA
	HLT		/SNA SHOULD HAVE SKIPPED
			/AC SHOULD EQUAL 0004
/SZA TEST 12
	CLA
	TAD K0002
	SZA
	SKP
	HIT		/SZA SHOULD NOT HAVE SKIPPED
			/AC SHOULD EQUAL 0002
	SNA
	HLT		/SNA SHOULD HAVE SKIPPED
			/AC SHOULD EQUAL 0002
/SZA TEST 13
	CLA
	TAD K0001

	SKP
	HLT		/SZA SHOULD NOT HAVE SKIPPED
			/AC SHOULD EQUAL 0001
	SNA
	HLT		/$NA SHOULD HAVE SKIPPED
			/AC SHOULD EQUAL 0001
/SPA TEST 1
	CLA
	TAD K3777
	SPA
	HLT		/SPA SHOULD HAVE SKIPPED
			/AC SHOULD EQUAL 3777
/SPA TEST 2
	CLA
	TAD K4000
	SPA
	SKP
	NLT		/SPA SHOULD NOT HAVE SKIPPED
			/AC SHOULD EQUAL 4000
/SMA TEST 1
	CLA
	TAD K3777
	SMA
	SKP
	HLT		/SMA SHOULD NOT HAVE SKIPPED
			/AC SHOULD EQUAL 3777
/SMA TEST 2
	CLA
	TAD K4000
	SMA
	HLT		/SMA SHOULD HAVE SKIPPED
			/AC SHOULD EQUAL 4000
/CMA TEST 1
	CLA
	TAD K7777
	CMA
	SZA
	HLT		/CMA DID NOT COMPLEMENT AC
			/AC SHOULD EQUAL 0000
/CMA - TAD TEST 1
	CLA
	TAD K2525
	CMA
	SNA
	HLT		/TAD OR CMA ERROR
			/AC SHOULD EQUAL 5252
	TAD K2525
	CMA
	SZA
	HLT		/TAD OR CMA ERROR
			/AC SHOULD EQUAL 0000
/CMA - TAD TEST 2
	CLA
	TAD K5252
	CMA
	SNA
	HLT		/TAD OR CMA ERROR
			/AC SHOULD EQUAL 2525
	TAD K5252
	CMA
	SZA
	HLT		/TAD OR CMA ERROR
			/AC SHOULD EQUAL 0000
/CMA - TAD TEST 3
	CLA
	TAD K1171
	CMA
	SZA
	HLT		/TAD OR CMA ERROR
			/AC SHOULD EQUAL 0000
/IAC TEST 1
	CLA
	IAC
	SZA
	SKP
	HLT		/I4C DID NOT INCREMENT
			/AC SHOULD EQUL 0001
/IAC TEST 2
	CLA
	TAD K7777
	IAC
	SZA
	HLT		/IAC 010 NOT INCREMENT
			/AC SHOULD EQUAL 0000
	NOP
	NOP
*400
/IAC TEST 3
	CLA
	TAD K7774
	IAC
	IAC
	IAC
	IAC
	SZA
	HLT		/IAC NOT INCREMENTING
			/AC SHOULD EQUAL 0040
/SZL TEST 1
	CLA
	CLL		/CLEAR LINK
	RAL		/CLEAR LINK SAFETY
	SZL
	HLT		/SZL SHOULD HAVE SKIPPED
			/LINK SHOULD EQUAL ZERO
/SZL TEST 2
	CLA
	CLL		/CLEAR LINK
	CML		/COMPLEMENT LINK
	TAD K4000
	RAL		/SET LINK SAFETY
	SZL
	SKP
	HLT		/SZL SHOULD NUT HAVE SKIPPED
			/LINK SHOULD EQUAL ONE
/SNL TEST 1
	CLA
	CLL		/CLEAR LINK
	RAL		/CLEAR LINK SAFETY
	SNL
	SKP
	HLT		/SNL SHOULD NOT HAVE SKIPPED
			/LINK SHOULD EQUAL ZERO
/SNL TEST 2
	CLA
	CLL		/CLEAR LINK
	CML		/COMPLEMENT LINK
	TAD K4000
	PAL		/SET LINK SAFETY
	SNL
	HLT		/SNL SHOULD HAVE SKIPPED
			/LINK SHOULD EQUAL ONE

/CLL TEST 1
	CLA
	TAD K4000
	RAL		/SET LINK
	SNL
	JMP CLL11		/CANNOT SET LINK WITH RAL
			/TRY A CML
CLL1,	CLL
	SZL
	HLT		/CLL DID NOT CLEAR LINK
			/LINK SHOULD EQUAL ONE
	JMP .+5
CLL11,	CML		/SET LINK
	SNL
	HLT		/CANNOT SET LINK WITH
			/RAL OR CML, CANNOT
			/PERFORM CLL TEST 1
	JMP CLL1

/CML TEST 1
CMLT1,	CLL
	SZL
	HLT		/CLL DID NOT CLEAR LINK
	CML
	SNL
	HLT		/CML DID NOT SET LINK
	CML
	SZL
	HLT		/CML DID NOT RESET LINK
/CLA TEST 1 (OPERATE GROUP 2)
	CLA
	TAD K7777
	7600
	SZA
	HLT		/CLA (7600) DID NOT CLEAR AC
			/AC SHOULD EQUAL 0000
/OSR TEST 1
	CLA
	OSR
	CMA
	SEA
	HLT		/OSR DID NOT SET AC TO 7777
			/AC SHOULD=0

/NOP TEST 1 (OPERATE GROUP 1)

	CLA
	CLL		/AC AND LINK EQUAL ZERO
	7000		/TEST INSTRUCTION
	SNA
	SZL
	HLT		/NOP FAILURE
			/AC AND LINK SHOULD BE ZERO

/NOP TEST 2 (OPERATE GROUP 2)

	CLA
	CLL		/AC AND LINK EQUAL ZERO
	7400		/TEST INSTRUCTION
	SNA
	SZL
	HLT		/NOP FAILURE
			/AC AND LINK SHOULD BE ZERO
/TAD TEST 1
	CLA
	TAD K3777		/OPERAND 1
	TAD K4000		/OPERAND 2
	CMA
	S2A
	HO		/TAD ERROR
			/AC SHOULD EQUAL 0000
/TAD TEST 2
	CLA
	TAD K5777		/OPERAND 1
	TAD K2000		/OPERAND 2
	CMA
	SZA
	HLT		/TAD ERROR
			/AC SHOULD EQUAL 0000
/TAD TEST 3
	CLA
	TAD K6777		/OPERAND 1
	TAD K1000		/OPERAND 2
	CMA
	SZA
	HLT		/TAD ERROR
			/AC SHOULD EQUAL 0000
/TAD TEST 4
	CLA
	TAD K7377		/OPERAND 1
	TAD K0400		/OPERAND 2
	CMA
	SZA
	HLT		/TAD ERROR
			/AC SHOULD EQUAL 0000
/TAD TEST 5
	CLA
	TAD K7577		/OPERAND 1
	TAD K0200		/OPERAND 2
	CMA
	SZA
	HLT		/TAD ERROR
			/AC SHOULD EQUAL 0000

/TAD TEST 6
	CLA
	TAD K7677		/OPERAND 1
	TAD K0100		/OPERAND 2
	CMA
	SZA
	HLT		/TAD ERROR
			/AC SHOULD EQUAL 0000
/TAD TEST 7
	CLA
	TAD K7737		/OPERAND 1
	TAD K0040		/OPERAND 2
	CMA
	SZA
	HLT		/TAD ERROR
			/AC SHOULD EQUAL 0000
/TAD TEST 8
	CLA
	TAD K7757		/OPERAND 1
	TAD K0020		/OPERAND 2
	CMA
	SZA
	HLT		/TAD ERROR
			/AC SHOULD EQUAL 0000
	NOP
	NOP
*600
/TAD TEST 9
	CLA
	TAD K7767		/OPERAND 1
	TAD K0010		/OPERAND 2
	CMA
	SZA
	HLT		/TAD ERROR
			/AC SHOULD EQUAL 0000

/TAD TEST 10
	CLA
	TAD K7773		/OPERAND 1
	TAD K0004		/OPERAND 2
	CMA
	SZA
	HO		/TAD ERROR
			/AC SHOULD EQUAL 0000
/TAD TEST 11
	CLA
	TAD K7775		/OPERAND 1
	TAD K0002		/OPERAND 2
	CMA
	SZA
	HLT		/TAD ERROR
/TAD TEST 12
	CLA
	TAD K7776		/OPERAND 1
	TAD K0001		/OPERAND 2
	CMA
	SZA
	HLT		/TAD ERROR
			/AC SHOULD EQUAL 0000
/TAD TEST 13
	CLA
	CLL
	TAD K4000		/OPERAND 1
	TAD K440		/OPERAND 2
	SZL
	SZA
	HLT		/TAD ERROR, AC SHOULD EQUAL 00d0
			/LINK SHOULD BE EQUAL ONE,
/TAD TEST 14
	CLA
	CLL
	TAD K6000		/OPERAND 1
	TAD K2000		/OPERAND 2
	SZL
	SZA
	HLT		/TAD ERROR, AO SHOULD EQUAL 0000
			/LINK SHOULD EQUAL ONE
/TAD TEST 15
	CLA
	CLL
	TAD K7000		/OPERAND 1
	TAD K1000		/OPERAND 2
	SZL	
	SZA
	HLT		/TAD ERROR, AC SHOULD' EQUAL 0000
			/LINK SHOULD EQUAL ONE
/TAD TEST 16
	CLA
	CLL
	TAD K7400		/OPERAND 1
	TAD K0400		/OPERAND 2
	SZL
	SZA
	HLT		/TAD ERROR, AC SHOULD EQUAL 0000
			/LINK SHOULD EQUAL ONE 
/TAD TEST 17
	CLA
	CLL
	TAD K7600		/OPERAND 1
	TAD K0200		/OPERAND 2
	SZL
	SZA
	HLT		/TAD ERROR, AC SHOULD EQUAL 0000
			/LINK SHOULD EQUAL ONE
/TAD TEST 18
	CLA
	CLL
	TAD K7700		/OPERAND 1
	TAD K0100		/OPERAND 2
	SZL
	SZA
	HLT		/TAD ERROR, AG SHOULD EQUAL 0000
			/LINK SHOULD ...EQUAL ONE
/TAD TEST 19
	CLA
	CLL
	TAD K7740		/OPERAND 1
	TAD K0040		/OPERAND 2
	SZL
	SZA
	HLT		/TAD ERROR, AC SHOULD EQUAL 0000
			/LINK SHOULD EQUAL ONE
/TAD TEST 20
	CLA
	CLL
	TAD K7760		/OPERAND 1
	TAD K0020		/OPERAND 2
	SZL
	SEA
	HLT		/TAD ERROR, AC SHOULD EQUAL 0000
			/LINK SHOULD EQUAL ONE
/TAD TEST 21
	CLA
	CLL
	TAD K7770		/OPERAND 1
	TAD K0010		/OPERAND 2
	SZL
	SZA		/TAD ERROR AC SHOULD EQUAL 0000
	HLT		/LINK SHOULD EQUAL ONE

/TAD TEST 22
	CLA
	CLL
	TAD K7774		/OPERAND 1
	TAD K5004		/OPERAND 2
	SAL
	SEA
	HLT		/TAD ERROR, AC SHOULD EQUAL 0000
			/LINK SHOULD EQUAL ONE
/TAD TEST 23
	CLA
	CLL
	TAD K7776		/OPERAND 1
	TAD K0002		/OPERAND 2
	SZL
	SZA
	HLT		/TAD ERROR, AC SHOULD EQUAL 0000
			/LINK SHQULD EQUAL ONE

/TAD TEST 24
	CLA
	CLL
	TAD K7777		/OPERAND 1
	TAD K0001		/OPERAND 2	.
	SZL
	SZA
	HLT		/TAD ERROR, AC SHOULD EQUAL. 0000
			/LINK SHOULD EQUAL ONE
/TAD TEST 25
	CLA
	CLL
	CML
	TAD K4000		/OPERAND 1
	TAD K4000		/OPERAND 2
	SNL
	SZA
	HLT		/TAD ERROR, AC SHOULD EQUAL 0000
			/LINK SHOULD EQUAL ZERO
/TAD TEST 26
	CLA
	CLL
	TAD K3777		/OPERAND 1
	TAD K2000		/OPERAND 2
	TAD K2000		/OPERAND 4
	CMA
	SNL
	SZA
	HLT		/TAD ERROR, AC SHOULD EQUAL 0000
			/LINK SHOULD EQUAL ZERO
	NOP
	NOP
	NOP
*1000
		/TAD TEST 27
	CLA
	CLL
	TAD K0777		/OPERAND 1
	TAD 4000		/OPERAND 2
	TAD K1000		/OPERAND 3
	CMA
	SNL
	SZA		/TAD ERROR AC SHOULD EQUAL 0000
	HLT		/LINK SHOULD EQUAL ZERO
/TAD TEST 28
	CLA
	CLL
	TAD K6777		/OPERAND 1
	TAD K0400		/OPERAND 2
	TAD K0400		/OPERAND 3
	CMA
	SNL
	SZA
	HLT		/TAD ERROR, AC SHOULD EQUAL 0000
			/LINK SHOULD EQUAL ZERO
/TAD TEST 29
	CLA
	CLL
	TAD K7377		/OPERAND 1
	TAD K0000		/OPERAND 2
	TAD K0200		/OPERAND 3
	CMA
	SNL
	SZA
	HLT		/TAD ERROR, AC SOULD EQUAL 0000
			/LINK SHOULD EQUAL ZERO
/TAD TEST 30
	CLA
	CLL
	TAD K7577		/OPERAND 1
	TAD K0100		/OPERAND 2
	TAD K0100		/OPERAND 3
	CMA
	SNL
	SZA
	HLT		/TAD ERROR, AC SHOULD EQUAL 0000
			/LINK SHOULD EQUAL ZERO
/TAD TEST 31
	CLA
	CLL
	TAD K7677		/OPERAND 1
	TAD K0040		/OPERAND 2
	TAD 0040		/OPERAND 3
	CMA
	SNL
	SZA
	HLT		/TAD ERROR, AC SHOULD EQUAL 0000
			/LINK SHOULD EQUAL ZERO
/TAD TEST 32
	CLA
	CLL
	TAD K7737		/OPERAND 1
	TAD K0020		/OPERAND 2
	TAD K0020		/OPERAND 3
	CMA
	SNL
	SZA
	HLT		/TAD ERROR, AC SHOULD EQUAL 0000
			/LINK SHOULD EQUAL ZERO
/TAD TEST 33
	CLA
	CLL
	TAD K7757		/OPERAND 1
	TAD K0010		/OPERAND 2
	TAD K0010		/OPERAND 3
	CMA
	SNL
	SZA
	HLT		/TAD ERROR, AC SHOULD EQUAL 0000
			/LINK SHOULD EQUAL ZERO
/TAD TEST 34
	CLA
	CLL
	TAD K7767		/OPERAND 1
	TAD K0004		/OPERAND 2
	TAD K0004		/OPERAND 3
	CMA
	SNL
	SZA
	HLT		/TAD ERROR, AC SMOULD EQUAL 0000
			/LINK SHOULD EQUAL ZERO
/TAD TEST 35
	CLA
	CLL
	TAD K7773		/OPERAND 1
	TAD K0002		/OPERAND 2
	TAD K0002		/OPERAND 3
	CMA
	SNL
	SZA
	HLT		/TAD ERROR, AC SHOULD EQUAL 0000
			/LINK SHOULD EQUAL ZERO
/TAD TEST 36
	CLA
	CLL
	TAD K7775		/OPERAND 1
	TAD K0001		/OPERAND 2
	TAD K0001		/OPERAND 3
	CMA
	SNL
	SZL
	HLT		/TAD ERROR, AC SHOULD EQUAL 0000
			/LINK SHOULD EQUAL ZERO
/RAR TEST 1
	CLA
	CLL
	TAD K0001		/ROTATE PATTERN
	RAR
	SNL
	HLT		/RAR FAILED, LINK DROPPED A BIT
			/LINK SHOULD EQUAL A ONE
/RAR TEST 2
	CLA
	CLL
	TAD K0000		/ROTATE PATTERN
	RAR
	SZA
	HLT		/RAR FAILED, AC PICKED UP A BIT
			/A ONE IN AC EQUALS THE PICKED UP BIT
/RAR TEST 3
	CLA
	CLL
	TAD K0000		/ROTATE PATTERN
	RAR
	SZL
	HLT		/RAL, FAILED. LINK PICKED UP A BIT
			/LINK SHOULD EQUAL ZERO.

/RAR TEST 4
	CLA
	CLL
	CML
	TAD K4004		/ROTATE PATTERN
	RAR
	SZL
	HLT		/RAR LINK PICKED UP A BIT
			/LINK SHOULD EQUAL ZERO
/RAR TEST 5
	CLA
	CLL
	CML
	TAD K7777		/ROTATE PATTERN
	RAR
	CMA
	SZA
	HLT		/RAR FAILED AU DROPPED A BIT
			/A ON C IN AC EQUALS THE DROPPED BIT
	NOP
	NOP
	NOP
	NOP
	NOP
*1200
/RAR TEST 6
	CLA
	CLL
	CML
	TAD K0000		/ROTATE PATTERN
	RAR
	TAD K5777
	CMA
	SNA
	SZL
	HLT		/RAR FAILED AC AND LINK
			/SHOULD EQUAL 0000
/RAR TEST 7
	CLA
	CLL
	TAD K4000		/ROTATE PATTERN
	RAR
	TAD K5777
	CMA
	SNA
	SZL
	HLT		/RAP FAILED AC AND LINK SHOULD
			/EQUAL 0000
/RAR TEST 8
	CLA
	CLL
	TAD K2000		/ROTATE PATTERN
	RAR
	TAD K6777
	CMA
	SNA
	SZL
	HLT		/RAR FAILED AC AND LINK SHOULD
			/EQUAL 0000
/RAR TEST 9
	CLA
	CLL
	TAD K1000		/ROTATE PATTERN
	RAR
	TAD K7377
	CMA
	SNZ
	SZL
	HLT		/RAR FAILED AC AND LINK SHOULD
			/EQUAL 0700
/RAR TEST 10
	CLA
	CLL
	TAD K0400		/ROTATE PATTERN
	RAR
	TAD K7577
	CMA
	SNA
	SZL
	HLT		/RAR FAILED AC AND LINK
			/SHOULD EQUAL 0000

/RAR TEST 11
	CLA
	CLL
	TAD K0200		/ROTATE PATTERN
	RAR
	TAD K7677
	CMA
	SNA
	SZL
	HLT		/RAR FAILED AC AND LINK
			/EQUAL 0000
/RAR TEST 12
	CLA
	CLL
	TAD K0100		/ROTATE PATTERN
	RAR
	TAD K7737
	CMA
	SNA
	SZL
	HLT		/RAR FAILED AC AND LINK
			/SHOULD EQUAL 0000
/RAR TEST 13
	CLA
	CLL
	TAD K0040		/ROTATE PATTERN
	RAR
	TAD K7757
	CMA
	SNA
	SZL
	HLT		/RAR FAILED AC AND LINK
			/SHOULD EQUAL 0000

PAUSE

/INSTRUCTION TEST 1
/TAPE 2
/RAR TEST 14
	CLA
	CLL
	TAD K0020		/ROTATE PATTERN
	RAR
	TAD K7767
	CMA
	SNA
	SZL
	HLT		/RAR FAILED AG AND LINK
			/SHOULD EQUAL 0000
/RAR TEST 15
	CLA
	CLL
	TAD K0010		/ROTATE PATTERN
	RAR
	TAD K7773
	CMA
	SNA
	SZL
	HLT		/RAR FAILED AC AND LINK
			/SHOULD EQUAL 0000
/RAR TEST 16
	CLA
	CLL
	TAD K0004		/ROTATE PATTERN
	RAR
	TAD K7775
	CMA
	SNA
	SZL
	HLT		/RAR FAILED AG AND LINK
			/SHOULD EQUAL 0000
/RAR TEST 17
	CLA
	CLL
	TAD K0002		/ROTATE PATTERN
	RAR
	TAD K7776
	CMA
	SNA
	SZL
	HLT		/RAR FAILED AG AND LINK
			/SHOULD EQUAL 0000