(old) | htmldiff from- | (new) |
Bitwise bit Clear (vector, immediate). This instruction reads each vector element from the destination SIMD&FP register, performs a bitwise AND between each result and the complement of an immediate constant, places the result into a vector, and writes the vector to the destination SIMD&FP register.
Depending on the settings in the CPACR_EL1, CPTR_EL2, and CPTR_EL3 registers, and the current Security state and Exception level, an attempt to execute the instruction might be trapped.
Bitwise bit Clear (vector, immediate). This instruction reads each vector element from the destination SIMD&FP register, performs a bitwise AND between each result and the complement of an immediate constant, places the result into a vector, and writes the vector to the destination SIMD&FP register.
Depending on the settings in the CPACR_EL1, CPTR_EL2, and CPTR_EL3 registers, and the current Security state and Exception level, an attempt to execute the instruction might be trapped.
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 |
0 | Q | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | a | b | c | x | x | x | 1 | 0 | 1 | d | e | f | g | h | Rd | ||||
op | cmode |
integer rd = UInt(Rd); integer datasize = if Q == '1' then 128 else 64; bits(datasize) imm; bits(64) imm64; ImmediateOp operation; case cmode:op of when '0xx00' operation = ImmediateOp_MOVI; when '0xx01' operation = ImmediateOp_MVNI; when '0xx10' operation = ImmediateOp_ORR; when '0xx11' operation = ImmediateOp_BIC; when '10x00' operation = ImmediateOp_MOVI; when '10x01' operation = ImmediateOp_MVNI; when '10x10' operation = ImmediateOp_ORR; when '10x11' operation = ImmediateOp_BIC; when '110x0' operation = ImmediateOp_MOVI; when '110x1' operation = ImmediateOp_MVNI; when '1110x' operation = ImmediateOp_MOVI; when '11110' operation = ImmediateOp_MOVI; when '11111' // FMOV Dn,#imm is in main FP instruction set if Q == '0' then UNDEFINED; operation = ImmediateOp_MOVI; imm64 = AdvSIMDExpandImm(op, cmode, a:b:c:d:e:f:g:h); imm = Replicate(imm64, datasize DIV 64);
<Vd> | Is the name of the SIMD&FP register, encoded in the "Rd" field. |
<imm8> | Is an 8-bit immediate encoded in "a:b:c:d:e:f:g:h". |
<amount> |
For the 16-bit variant: is the shift amount
encoded in
cmode<1>:
| ||||||||||
| |||||||||||
For the 32-bit variant: is the shift amount
encoded in
cmode<2:1>:
| |||||||||||
|
CheckFPAdvSIMDEnabled64(); bits(datasize) operand; bits(datasize) result; case operation of when ImmediateOp_MOVI result = imm; when ImmediateOp_MVNI result = NOT(imm); when ImmediateOp_ORR operand = V[rd]; result = operand OR imm; when ImmediateOp_BIC operand = V[rd]; result = operand AND NOT(imm); V[rd] = result;
If PSTATE.DIT is 1:
Internal version only: isa v32.13v32.12, AdvSIMD v29.05v29.04, pseudocode v2020-12v2020-09_xml, sve v2020-12v2020-09_rc3
; Build timestamp: 2020-12-16T142020-11-18T17:1723
Copyright © 2010-2020 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.
(old) | htmldiff from- | (new) |