Abssp (Absolute Value, Single-Precision Floating-Point) - Texas Instruments TMS320C67X Reference Manual

ABSSP
Absolute Value, Single-Precision Floating-Point
ABSSP
Syntax
Compatibility
Opcode
31 29 28 27
creg z dst
3 1 5
Description
Execution
3-42 Instruction Set
Absolute Value, Single-Precision Floating-Point
ABSSP (.unit) src2, dst
.unit = . S1 or .S2
C67x and C67x+ CPU
23 22 18
src2
5
Opcode map field used...
src2
dst
The absolute value in src2 is placed in dst.
if (cond) abs(src2) → dst
else nop
The absolute value of src2 is determined as follows:
1) If src2 w 0, then src2 → dst
2) If src2 t 0, then −src2 → dst
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.
17 13 12 11
0 0 0 0 0 x 1
1
For operand type...
xsp
sp
6 5 4 3
1 1 1 0 0 1 0 0 0 s p
Unit
.S1, .S2
SPRU733
2 1 0
1 1