Power ISA™ Version 2.03 - Power.org

Version 2.03
7.3.4 SPE.Embedded Float Scalar Double Instructions
[Category: SPE.Embedded Float Scalar Double]
Floating-Point Double-Precision Absolute
Value
EVX-Form
Floating-Point Double-Precision Negative
Absolute Value
EVX-Form
efdabs
RT,RA
efdnabs
RT,RA
4 RT RA /// 740
0 6 11 16 21 31
4 RT RA /// 741
0 6 11 16 21 31
RT 0:63 0b0 || (RA) 1:63
The sign bit of register RA is set to 0 and the result is
placed in register RT.
Regardless of the value of register RA, no exceptions
are taken during the execution of this instruction.
Special Registers Altered:
None
RT 0:63 0b1 || (RA) 1:63
The sign bit of register RA is set to 1 and the result is
placed in register RT.
Regardless of the value of register RA, no exceptions
are taken during the execution of this instruction.
Special Registers Altered:
None
Floating-Point Double-Precision Negate
EVX-Form
efdneg
RT,RA
4 RT RA /// 742
0 6 11 16 21 31
RT 0:63 ¬(RA) 0 || (RA) 1:63
The sign bit of register RA is complemented and the
result is placed in register RT.
Regardless of the value of register RA, no exceptions
are taken during the execution of this instruction.
Special Registers Altered:
None
268
Power ISA -- Book I