auxv

cpuinfolocationbitDescriptionnotes
fpHWCAP1 << 0Convert between fp32 and fp16Probably required for all Armv8 and later
asimdHWCAP1 << 1Advanced SIMDProbably required for all Armv8 and later
evtstrmHWCAP1 << 2Event stream
aesHWCAP1 << 3AES crypto instructions
pmullHWCAP1 << 4Polynomial multiply instructionsProbably related to crypto graphic
sha1HWCAP1 << 5Compute SHA1 hash
sha2HWCAP1 << 6Compute SHA2 hash
crc32HWCAP1 << 7Compute CRC32 hash
atomicsHWCAP1 << 8Atomic load/store instructionshttps://cpufun.substack.com/p/atomics-in-aarch64
fphpHWCAP1 << 9Instruction to directly compute in half
asimdhpHWCAP1 << 10Instruction to directly compute in half in vector
cpuidHWCAP1 << 11
asimdrdmHWCAP1 << 12Instruction SQRDMULH supportedSigned saturating Rounding Doubling Multiply returning High half https://developer.arm.com/documentation/ddi0596/2021-12/SIMD-FP-Instructions/SQRDMLAH--vector---Signed-Saturating-Rounding-Doubling-Multiply-Accumulate-returning-High-Half--vector--?lang=en
jscvtHWCAP1 << 13Instruction specially for Javasciprthttps://qiita.com/mod_poppo/items/66663d9a05790579b5e4
fcmaHWCAP1 << 14
lrcpcHWCAP1 << 15
dcpopHWCAP1 << 16
sha3HWCAP1 << 17
sm3HWCAP1 << 18
sm4HWCAP1 << 19
asimddpHWCAP1 << 20Compute dot product of four int8 and add up in int32Mainly for DL usage
sha512HWCAP1 << 21Compute SHA512 hash
sveHWCAP1 << 22Scalable Vector Engine
asimdfhmHWCAP1 << 23
ditHWCAP1 << 24
uscatHWCAP1 << 25
ilrcpcHWCAP1 << 26
flagmHWCAP1 << 27
ssbsHWCAP1 << 28
sbHWCAP1 << 29
pacaHWCAP1 << 30
pacgHWCAP1 << 31
dcpodpHWCAP21 << 0
sve2HWCAP21 << 1Scalable Vector Engine2
sveaesHWCAP21 << 2
svepmullHWCAP21 << 3
svebitpermHWCAP21 << 4
svesha3HWCAP21 << 5
svesm4HWCAP21 << 6
flagm2HWCAP21 << 7
frintHWCAP21 << 8
svei8mmHWCAP21 << 9
svef32mmHWCAP21 << 10
svef64mmHWCAP21 << 11
svebf16HWCAP21 << 12
i8mmHWCAP21 << 13
bf16HWCAP21 << 14Instructions that treats bf16
dghHWCAP21 << 15
rngHWCAP21 << 16
btiHWCAP21 << 17
mteHWCAP21 << 18
ecvHWCAP21 << 19
afpHWCAP21 << 20
rpresHWCAP21 << 21
mte3HWCAP21 << 22
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Last-modified: 2022-07-04 (月) 22:11:19