udf

Undefined Instruction

UDF #<imm>

Permanently undefined instruction (generates Undefined Instruction exception).

Details

The Undefined Instruction instruction permanently undefined instruction (generates Undefined Instruction exception).

Pseudocode Operation

// Permanently undefined instruction (generates Undefined Instruction exception)

Example

UDF #16

Encoding

Binary Layout
111001111111
imm12
1111
imm4
 
Format System
Opcode 0xE7F000F0
Extension A32 (Base)

Operands

  • imm
    ID