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Bit Clear and Exclusive OR performs a bitwise AND of the 128-bit vector in a source SIMD&FP register and the complement of the vector in another source SIMD&FP register, then performs a bitwise exclusive OR of the resulting vector and the vector in a third source SIMD&FP register, and writes the result to the destination SIMD&FP register.
This instruction is implemented only when ARMv8.2-SHA is implemented.
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 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | Rm | 0 | Ra | Rn | Rd |
if !HaveSHA3Ext() then UNDEFINED;
integer d =() then UnallocatedEncoding();
integer d = UInt(Rd);
integer n = UInt(Rn);
integer m = UInt(Rm);
integer a = UInt(Ra);
<Vd> | Is the name of the SIMD&FP destination register, encoded in the "Rd" field. |
<Vn> | Is the name of the first SIMD&FP source register, encoded in the "Rn" field. |
<Vm> | Is the name of the second SIMD&FP source register, encoded in the "Rm" field. |
<Va> | Is the name of the third SIMD&FP source register, encoded in the "Ra" field. |
AArch64.CheckFPAdvSIMDEnabled(); bits(128) Vm = V[m]; bits(128) Vn = V[n]; bits(128) Va = V[a]; V[d] = Vn EOR (Vm AND NOT(Va));
If PSTATE.DIT is 1:
Internal version only: isa v30.25v29.05, AdvSIMD v27.01v26.0, pseudocode v85-xml-00bet8_rc3v35.3
; Build timestamp: 2018-09-13T132018-06-16T09:0445
Copyright © 2010-2018 ARM Limited or its affiliates. All rights reserved. This document is Non-Confidential.
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