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