Texas Instruments TMS320C6000 Series Reference Manual page 201

ABSDP
Double-Precision Floating-Point Absolute Value
Syntax
Opcode
31 29 28 27
creg z dst
3 5
Description
Execution
Pipeline
4-16
ABSDP (.unit) src2 , dst
.unit = .S1 or .S2
Opcode map field used...
src2
dst
23 22 18 17
src2
5
The absolute value of src2 is placed in dst . The 64-bit double-precision oper-
and is read in one cycle by using the src2 port for the 32 MSBs and the src1
port for the 32 LSBs.
if (cond) abs( src2 )
else nop
The absolute value of src2 is determined as follows:
1) If src2 w 0, then src2
2) If src2 t 0, then –src2
Notes:
1) If scr2 is SNaN, NaN_out is placed in dst and the INVAL and NAN2 bits
are set.
2) If src2 is QNaN, NaN_out is placed in dst and the NAN2 bit is set.
3) If src2 is denormalized, +0 is placed in dst and the INEX and DEN2 bits
are set.
4) If src2 is +infinity or –infinity, +infinity is placed in dst and the INFO bit is
set.
Pipeline
Stage E1
Read src2_l
src2_h
dst_l
Written
Unit in use .S
For operand type...
dp
dp
13 12 11
rsv x
1 0 1 1 0 0
5 6
dst
dst
dst
E2
dst_h
Unit
.S1, .S2
6 5 4 3 2 1 0
s p
1 0 0 0