imm4ΒΆ
A positive integer_number. The value is truncated to 4 bits.
This operand is a mask which controls indexing mode for operands of subsequent instructions. Value 1 enables indexing and value 0 disables it.
Bit Meaning 0 Enables or disables src0 indexing. 1 Enables or disables src1 indexing. 2 Enables or disables src2 indexing. 3 Enables or disables dst indexing.