Table A-7. F1 Field; Table A-8. F2 Field - Lucent Technologies DSP1617 Information Manual

DSP1611/17/18/27/28/29 DIGITAL SIGNAL PROCESSOR
Instruction Encoding
A.2 Field Descriptions
F1 Field
F1 field specifies the multiply/ALU function.

Table A-7. F1 Field

F1 Operation
0000 aD = p
0001 aD = aS + p
0010
0011 aD = aS – p
0100 aD = p
0101 aD = aS + p
0110 nop
0111 aD = aS – p
1000 aD = aS | y
1001 aD = aS ^ y
1010 aS & y
1011 aS – y
1100 aD = y
1101 aD = aS + y
1110 aD = aS & y
1111 aD = aS – y
A-6
(continued)
p = x ∗ y
p = x ∗ y
p = x ∗ y
p = x ∗ y
F2 Field
F2 field specifies the special function to be performed.

Table A-8. F2 Field

F2 Operation
0000 aD = aS >> 1
0001 aD = aS << 1
0010 aD = aS >> 4
0011 aD = aS << 4
0100 aD = aS >> 8
0101 aD = aS << 8
0110 aD = aS >> 16
0111 aD = aS << 16
1000 aD = p
1001 aDh = aSh + 1
1010 aD = ~aS
1011 aD = rnd(aS)
1100 aD = y
1101 aD = aS + 1
1110 aD = aS
1111 aD = –aS
Information Manual
April 1998
Lucent Technologies Inc.