t1mskc

Inverse Mask From Trailing Ones

T1MSKC r32, r/m32

Creates mask from trailing ones (~x | (x+1)).

Details

The Inverse Mask From Trailing Ones instruction creates mask from trailing ones (~x | (x+1)).

Pseudocode Operation

// Creates mask from trailing ones (~x | (x+1))

Example

T1MSKC eax, ebx

Encoding

Binary Layout
VEX
+0
opcode
+3
ModRM
+4
 
Format TBM
Opcode 8F ... 07
Extension TBM

Operands

  • dest
    32-bit general-purpose register (e.g. EAX)
  • src
    32-bit register or memory