CSETM

Conditional set mask

This instruction sets all bits of the destination register to 1 if the condition is TRUE, and otherwise sets all bits to 0.

Encoding: Integer

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
	1	0	1	1	0	1	0	1	0	0	1	1	1	1	1	!= 111x				0	0	1	1	1	1	1
sf	op	S									Rm					cond					o2	Rn					Rd

32-bit (sf == 0)

CSETM <Wd>, <invcond>

Equivalent to: CSINV <Wd>, WZR, WZR, <cond>

64-bit (sf == 1)

CSETM <Xd>, <invcond>

Equivalent to: CSINV <Xd>, XZR, XZR, <cond>

Explanations

<Wd>: Is the 32-bit name of the general-purpose destination register, encoded in the "Rd" field.
<invcond>: <Xd>: Is the 64-bit name of the general-purpose destination register, encoded in the "Rd" field.

Operational Notes

If PSTATE.DIT is 1:

• The execution time of this instruction is independent of:
  • The values of the data supplied in any of its registers.
  • The values of the NZCV flags.
• The response of this instruction to asynchronous exceptions does not vary based on:
  • The values of the data supplied in any of its registers.
  • The values of the NZCV flags.