Floating-point Move register without conversion. This instruction copies the floating-point value in the SIMD&FP source register to the SIMD&FP destination 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 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | ftype | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | Rn | Rd | |||||||||
| opc | |||||||||||||||||||||||||||||||
integer d = UInt(Rd); integer n = UInt(Rn); integer datasize; case ftype of when '00' datasize = 32; when '01' datasize = 64; when '10' UNDEFINED; when '11' if HaveFP16Ext() then datasize = 16; else UNDEFINED; FPUnaryOp fpop; case opc of when '00' fpop = FPUnaryOp_MOV; when '01' fpop = FPUnaryOp_ABS; when '10' fpop = FPUnaryOp_NEG; when '11' fpop = FPUnaryOp_SQRT;
| <Dd> |
Is the 64-bit name of the SIMD&FP destination register, encoded in the "Rd" field. |
| <Dn> |
Is the 64-bit name of the SIMD&FP source register, encoded in the "Rn" field. |
| <Hd> |
Is the 16-bit name of the SIMD&FP destination register, encoded in the "Rd" field. |
| <Hn> |
Is the 16-bit name of the SIMD&FP source register, encoded in the "Rn" field. |
| <Sd> |
Is the 32-bit name of the SIMD&FP destination register, encoded in the "Rd" field. |
| <Sn> |
Is the 32-bit name of the SIMD&FP source register, encoded in the "Rn" field. |
CheckFPAdvSIMDEnabled64(); bits(datasize) result; bits(datasize) operand = V[n]; case fpop of when FPUnaryOp_MOV result = operand; when FPUnaryOp_ABS result = FPAbs(operand); when FPUnaryOp_NEG result = FPNeg(operand); when FPUnaryOp_SQRT result = FPSqrt(operand, FPCR); V[d] = result;
Internal version only: isa v32.13, AdvSIMD v29.04, pseudocode morello-2022-01_rc2, capabilities morello-2022-01_rc2 ; Build timestamp: 2022-01-11T11:23
Copyright © 2010-2022 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.