Index

CSETM

Conditional Set Mask sets all bits of the destination register to 1 if the condition is TRUE, and otherwise sets all bits to 0.

This is an alias of CSINV. This means:

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
sf 1 0 1 1 0 1 0 1 0 0 1 1 1 1 1 != 111x 0 0 1 1 1 1 1 Rd
op Rm cond o2 Rn

32-bit (sf == 0)

CSETM <Wd>, <cond>

is equivalent to

CSINV <Wd>, WZR, WZR, invert(<cond>)

and is always the preferred disassembly.

64-bit (sf == 1)

CSETM <Xd>, <cond>

is equivalent to

CSINV <Xd>, XZR, XZR, invert(<cond>)

and is always the preferred disassembly.

Assembler Symbols

<Wd>

Is the 32-bit name of the general-purpose destination register, encoded in the "Rd" field.
<Xd>

Is the 64-bit name of the general-purpose destination register, encoded in the "Rd" field.
<cond>

Is one of the standard conditions, excluding AL and NV, encoded in the "cond" field with its least significant bit inverted.

Operation

The description of CSINV gives the operational pseudocode for this instruction.

Operational information

If PSTATE.DIT is 1: