RDSVL

Read multiple of Streaming SVE vector register size to scalar register

Multiply the Streaming SVE vector register size in bytes by an immediate in the range -32 to 31 and place the result in the 64-bit destination general-purpose register.

This instruction does not require the PE to be in Streaming SVE mode.

SME
(FEAT_SME)

313029282726252423222120191817161514131211109876543210
000001001011111101011imm6Rd

RDSVL <Xd>, #<imm>

if !IsFeatureImplemented(FEAT_SME) then UNDEFINED; constant integer d = UInt(Rd); constant integer imm = SInt(imm6);

Assembler Symbols

<Xd>

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

<imm>

Is the signed immediate operand, in the range -32 to 31, encoded in the "imm6" field.

Operation

CheckSMEEnabled(); constant integer SVL = CurrentSVL; constant integer len = imm * (SVL DIV 8); X[d, 64] = len<63:0>;

Operational information

If PSTATE.DIT is 1:


Internal version only: aarchmrs v2024-03_relA, pseudocode v2024-03_rel, sve v2024-03_rel ; Build timestamp: 2024-03-26T09:45

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