SHA1SU0

SHA1 schedule update 0.

Advanced SIMD
(FEAT_SHA1)

313029282726252423222120191817161514131211109876543210
01011110000Rm001100RnRd
sizeopcode

SHA1SU0 <Vd>.4S, <Vn>.4S, <Vm>.4S

integer d = UInt(Rd); integer n = UInt(Rn); integer m = UInt(Rm); if !IsFeatureImplemented(FEAT_SHA1) then UNDEFINED;

Assembler Symbols

<Vd>

Is the name of the SIMD&FP source and destination register, encoded in the "Rd" field.

<Vn>

Is the name of the second SIMD&FP source register, encoded in the "Rn" field.

<Vm>

Is the name of the third SIMD&FP source register, encoded in the "Rm" field.

Operation

AArch64.CheckFPAdvSIMDEnabled(); bits(128) operand1 = V[d, 128]; bits(128) operand2 = V[n, 128]; bits(128) operand3 = V[m, 128]; bits(128) result; result = operand2<63:0>:operand1<127:64>; result = result EOR operand1 EOR operand3; V[d, 128] = result;

Operational information

If PSTATE.DIT is 1:


Internal version only: aarchmrs v2023-12_rel, pseudocode v2023-12_rel, sve v2023-12_rel ; Build timestamp: 2023-12-15T16:46

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