Table A-9. F3 Field; Table A-10. I Field - Lucent Technologies DSP1617 Information Manual

Information Manual
April 1998
A.2 Field Descriptions
F3 Field
F3 field specifies the operation in an F3 ALU instruc-
tion.

Table A-9. F3 Field

F3
1000 aD = aS[h, l]
1001 aD = aS[h, l]
1010 aS[h, l]
1011 aS[h, l]
1101 aD = aS[h, l]
1110 aD = aS[h, l]
1111 aD = aS[h, l]
Note: h and l are not optional if an immediate operand (IM16) is
used.
Lucent Technologies Inc.
DSP1611/17/18/27/28/29 DIGITAL SIGNAL PROCESSOR
(continued)
Operation
| {aT, IM16, p}
^ {aT, IM16, p}
& {aT, IM16, p}
– {aT, IM16, p}
+ {aT, IM16, p}
& {aT, IM16, p}
– {aT, IM16, p}
I Field
I field specifies a register for short immediate data
move instructions.

Table A-10. I Field

I Register
00 r0 / j
01 r1 / k
10 r2 / rb
11 r3 / re
JA Field
12-bit jump address.
K Field
Number of times the N instructions in cache are to be
executed. Zero specifies use of value in cloop register.
N Field
Number of instructions to be loaded into the cache.
Zero implies redo operation.
Instruction Encoding
A-7