61 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
		
		
			
		
	
	
			61 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
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								# AArch64 SME allowed instruction decoding
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								#
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								#  Copyright (c) 2022 Linaro, Ltd
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								#
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								# This library is free software; you can redistribute it and/or
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								# modify it under the terms of the GNU Lesser General Public
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								# License as published by the Free Software Foundation; either
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								# version 2.1 of the License, or (at your option) any later version.
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								#
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								# This library is distributed in the hope that it will be useful,
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								# but WITHOUT ANY WARRANTY; without even the implied warranty of
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								# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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								# Lesser General Public License for more details.
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								#
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								# You should have received a copy of the GNU Lesser General Public
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								# License along with this library; if not, see <http://www.gnu.org/licenses/>.
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								#
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								# This file is processed by scripts/decodetree.py
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								#
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								# These patterns are taken from Appendix E1.1 of DDI0616 A.a,
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								# Arm Architecture Reference Manual Supplement,
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								# The Scalable Matrix Extension (SME), for Armv9-A
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								{
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								  [
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								    OK  0-00 1110 0000 0001 0010 11-- ---- ----   # SMOV W|Xd,Vn.B[0]
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								    OK  0-00 1110 0000 0010 0010 11-- ---- ----   # SMOV W|Xd,Vn.H[0]
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								    OK  0100 1110 0000 0100 0010 11-- ---- ----   # SMOV Xd,Vn.S[0]
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								    OK  0000 1110 0000 0001 0011 11-- ---- ----   # UMOV Wd,Vn.B[0]
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								    OK  0000 1110 0000 0010 0011 11-- ---- ----   # UMOV Wd,Vn.H[0]
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								    OK  0000 1110 0000 0100 0011 11-- ---- ----   # UMOV Wd,Vn.S[0]
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								    OK  0100 1110 0000 1000 0011 11-- ---- ----   # UMOV Xd,Vn.D[0]
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								  ]
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								  FAIL  0--0 111- ---- ---- ---- ---- ---- ----   # Advanced SIMD vector operations
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								}
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								{
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								  [
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								    OK  0101 1110 --1- ---- 11-1 11-- ---- ----   # FMULX/FRECPS/FRSQRTS (scalar)
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								    OK  0101 1110 -10- ---- 00-1 11-- ---- ----   # FMULX/FRECPS/FRSQRTS (scalar, FP16)
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								    OK  01-1 1110 1-10 0001 11-1 10-- ---- ----   # FRECPE/FRSQRTE/FRECPX (scalar)
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								    OK  01-1 1110 1111 1001 11-1 10-- ---- ----   # FRECPE/FRSQRTE/FRECPX (scalar, FP16)
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								  ]
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								  FAIL  01-1 111- ---- ---- ---- ---- ---- ----   # Advanced SIMD single-element operations
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								}
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								FAIL    0-00 110- ---- ---- ---- ---- ---- ----   # Advanced SIMD structure load/store
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								FAIL    1100 1110 ---- ---- ---- ---- ---- ----   # Advanced SIMD cryptography extensions
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								FAIL    0001 1110 0111 1110 0000 00-- ---- ----   # FJCVTZS
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								# These are the "avoidance of doubt" final table of Illegal Advanced SIMD instructions
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								# We don't actually need to include these, as the default is OK.
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								#       -001 111- ---- ---- ---- ---- ---- ----   # Scalar floating-point operations
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								#       --10 110- ---- ---- ---- ---- ---- ----   # Load/store pair of FP registers
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								#       --01 1100 ---- ---- ---- ---- ---- ----   # Load FP register (PC-relative literal)
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								#       --11 1100 --0- ---- ---- ---- ---- ----   # Load/store FP register (unscaled imm)
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								#       --11 1100 --1- ---- ---- ---- ---- --10   # Load/store FP register (register offset)
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								#       --11 1101 ---- ---- ---- ---- ---- ----   # Load/store FP register (scaled imm)
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