Decimal Overflow (OF) Exponent Underflow (U) The destination field is too small to contain the result The result characteristic is less than zero in floating-
field in decimal operations. point addition, subtraction, multiplication, or division.
The operation is completed by ignoring the over-The operation is completed by making the result offlow information. The interruption may be masked by the operation a true zero. The interruption may be
psw bit 37. masked by psw bit 38.
The interruption-length code is 3. The instruction-length code is 1 or 2.
NAME MNEMONIC TYPEEXCEPTIONS CODE NAME MNEMONIC TYPE EXCEPTIONS CODE Add Decimal AP SS T,C P,A, D, DF FA Add Normalized Subtract Decimal SP SS T,C P,A, D, DF FB (Long) NADR RRF,C S,U,E,LS 2A
Zero and AddZAP SS T,C P,A, D, DF F8 Add Normalized
( Long) NAD RXF,CA,S,U,E,LS 6A
Decimal [)ivide(OK) Add Normalized
The quotient exceeds the specified data field.(Short) NAER RRF,C S,U,E,LS 3A
The operation is suppressed.
Add Normalized
(Short) NAE RXF,C A,S,U,E,LS 7A
The instruction-length code is 3.
Divide (Long) NDDR RRFS,U,E,FK 2D
NAME MNEMONIC TYPEEXCEPTIONS CODE Divide (Long) NDD RXF A,S,U,E,FK 6D
DivideDecimal DP SS T P,A,S,D, DK FD Divide (Short) NDER RRF S,U,E,FK 3D
Divide(Short) NDE RXF A,S,U,E,FK 7D
Exponent Overflow (E) Multiply (Long) NMDR RRFS,U,E 2C
The result characteristic exceeds 127 in floating-point
Multiply (Long) NMD RXFA,S,U,E 6C
addition, subtraction, multiplication, or division.
Multiply(Short) NMER RRF S,U,E 3C
Multiply(Short) NME RXF A,S,U,E 7C
The operation is terminated.Subtract Norm-
The instruction-length code is 1 or 2. alizcd (Long)NSDR RRF,C S,U,E,LS 2B
NAME MNEMONIC TYPE EXCEPTIONSCODE Subtract Norm-
Add Normalized
alized (Long)NSD RXF,C A,S,U,E,LS 6B
(Long) NADR RRF,CS,U,E,LS 2A Subtract Norm-
Add Normalized
alized(Short) NSER RRF,C S,U,E,LS 3B
(Long) NAD RXF,CA,S,U,E,LS 6A Subtract Norm-
Add Normalized
alizcd(Short) NSE RXF,C A,S,U,E,LS 7B
(Short) NAER RRF,C S,U,E,LS 3A
Add Normalized Significance (LS)
(Short) NAE RXF,C A,S,U,E,LS 7A
The result of a floating-point addition or subtraction
AddUnnorm- alized (Long) AWR RRF,C S, E,LS 2E
has an all-zero fraction.
Add UnnOIm-The operation is completed. The interruption may
alized (Long) AW RXF,CA,S, E,LS 6E
be masked by psw bit 39. The manner in which the
Add Unnorm-
alized(Short) AUR RRF,C S, E,LS 3E
operation is completed is determined by the mask bit.
AddUnnorm- The instruction-length code is 1 or 2.
alized(Short) AU RXF,C A,S, E,LS 7E
NAME MNEMONIC TYPEEXCEPTIONS CODE Divide (Long) NDDR RRF S,U,E,FK 2D
Add Normalized
Divide (Long) NDD RXFA,S,U,E,FK 6D
( Long) NADR RRF,CS,U,E,LS 2A
Divide(Short) NDER RRF S,U,E,FK 3D
Add Normalized
Divide(Short) NDE RXF A,S,U,E,FK 7D (Long) NAD RXF,C A,S,U,E,LS 6A
Multiply (Long) NMDR RRFS,U,E 2C Add Normalized
Multiply (Long) NMD RXFA,S,U,E 6C (Short) NAER RRF,C S,U,E,LS 3A
Multiply(Short) NMER RRF S,U,E 3C Add Normalized
Multiply(Short) NME RXF A,S,U,E 7C ( Short) NAE RXF,C A,S,U,E,LS 7A Subtract Norm- Add Unnorm-
alized (Long)NSDR RRF,C S,U,E,LS 2B
alizcd (Long) AWR RRF,CS, E,LS 2E Subtract Norm-
Add Unnonn-
alizcd (Long)NSD RXF,C A,S,U,E,LS 6B
alized (Long) AW RXF,CA,S, E,LS 6E Subtract Norm-
Add Unnonn-
alized(Short) NSER RRF,C S,U,E,LS 3B
alizcd(Short) AUR RRF,C S, E,LS 3E Subtract Norm-
Add Unnorm-
alizcd(Short) NSE RXF,C A,S,U,E,LS 7B
alizcd(Short) AU RXF,C A,S, E,LS 7E Subtract U nnorm- Subtract Norm-
alized (Long)SWR RRF,C S, E,LS 2F alizcd (Long) NSDR RRF,C S,U,E,LS 2B Subtract Unnorm- Subtract Norm-
alized (Long)SW RXF,C A,S, E,LS 6F alizcd (Long) NSD RXF,C A,S,U,E,LS 6D Subtract Un norm- Subtract Norm-
alized(Short) SUR RRF,C S, E,LS 3F alizcd (Short) NSER RRF,C S,U,E,LS 3B Subtract Unnorm- Subtract Norm-
alized(Short) SU RXF,C A,S, E,LS 7F aHzcd (Short) NSE RXF,C A,S,U,E,LS 7B
152
field in decimal operations. point addition, subtraction, multiplication, or division.
The operation is completed by ignoring the over-The operation is completed by making the result of
psw bit 37. masked by psw bit 38.
The interruption-length code is 3. The instruction-length code is 1 or 2.
NAME MNEMONIC TYPE
Zero and Add
( Long) NAD RXF,C
Decimal [)ivide
The quotient exceeds the specified data field.
The operation is suppressed.
Add Normalized
(
The instruction-length code is 3.
Divide (Long) NDDR RRF
NAME MNEMONIC TYPE
Divide
Divide
Exponent Overflow (E) Multiply (Long) NMDR RRF
The result characteristic exceeds 127 in floating-point
Multiply (Long) NMD RXF
addition, subtraction, multiplication, or division.
Multiply
Multiply
The operation is terminated.
The instruction-length code is 1 or 2. alizcd (Long)
NAME MNEMONIC TYPE EXCEPTIONS
Add Normalized
alized (Long)
(Long) NADR RRF,C
Add Normalized
alized
(Long) NAD RXF,C
Add Normalized
alizcd
(
Add Normalized Significance (LS)
(
The result of a floating-point addition or subtraction
Add
has an all-zero fraction.
Add UnnOIm-The operation is completed. The interruption may
alized (Long) AW RXF,C
be masked by psw bit 39. The manner in which the
Add Unnorm-
alized
operation is completed is determined by the mask bit.
Add
alized
NAME MNEMONIC TYPE
Add Normalized
Divide (Long) NDD RXF
( Long) NADR RRF,C
Divide
Add Normalized
Divide
Multiply (Long) NMDR RRF
Multiply (Long) NMD RXF
Multiply
Multiply
alized (Long)
alizcd (Long) AWR RRF,C
Add Unnonn-
alizcd (Long)
alized (Long) AW RXF,C
Add Unnonn-
alized
alizcd
Add Unnorm-
alizcd
alizcd
alized (Long)
alized (Long)
alized
alized
152