x86-64.net

Zhaoxin

Century Avenue (Shijidadao)

Zhaoxin Century Avenue (Shijidadao) (2023) supports x86-64-v3.

x86-64 level
x86-64-v3
Vendor
Zhaoxin
First products
2023
Products
KX-7000 and KH-50000
Segments
desktopmobileserver
GCC target
-march=shijidadao

Product lines

The product lines built on Century Avenue (Shijidadao), with the market segment the vendor sells each in and the sockets or soldered (BGA) packages its processors come in. Each socket links to the vendor page that states it.
Product lineSegmentSocketSource
KX-7000desktopLGA, FCBGAzhaoxin.com
KX-7000mobileFCBGAzhaoxin.com
KH-50000serverLGAzhaoxin.com

Why not x86-64-v4?

Century Avenue (Shijidadao) lacks AVX512BW, AVX512CD, AVX512DQ, AVX512F and AVX512VL, all of which x86-64-v4 requires.

Feature checklist

Features required by each x86-64 level and whether Century Avenue (Shijidadao) has them. OSFXSR and OSXSAVE are set by the operating system; the table checks the hardware features they depend on.
FeatureCentury Avenue (Shijidadao)Enumerated byLinux flag
x86-64-v1
CMOVYesCPUID.01H:EDX[15]cmov
CX8YesCPUID.01H:EDX[8]cx8
FPUYesCPUID.01H:EDX[0]fpu
FXSRYesCPUID.01H:EDX[24]fxsr
MMXYesCPUID.01H:EDX[23]mmx
OSFXSR via FXSRYesCPUID.01H:EDX[24]fxsr
SCEYesCPUID.80000001H:EDX[11]syscall
SSEYesCPUID.01H:EDX[25]sse
SSE2YesCPUID.01H:EDX[26]sse2
x86-64-v2
CMPXCHG16BYesCPUID.01H:ECX[13]cx16
LAHF-SAHFYesCPUID.80000001H:ECX[0]lahf_lm
POPCNTYesCPUID.01H:ECX[23]popcnt
SSE3YesCPUID.01H:ECX[0]pni
SSE4.1YesCPUID.01H:ECX[19]sse4_1
SSE4.2YesCPUID.01H:ECX[20]sse4_2
SSSE3YesCPUID.01H:ECX[9]ssse3
x86-64-v3
AVXYesCPUID.01H:ECX[28]avx
AVX2YesCPUID.(EAX=07H,ECX=0):EBX[5]avx2
BMI1YesCPUID.(EAX=07H,ECX=0):EBX[3]bmi1
BMI2YesCPUID.(EAX=07H,ECX=0):EBX[8]bmi2
F16CYesCPUID.01H:ECX[29]f16c
FMAYesCPUID.01H:ECX[12]fma
LZCNTYesCPUID.80000001H:ECX[5]abm
MOVBEYesCPUID.01H:ECX[22]movbe
OSXSAVE via XSAVEYesCPUID.01H:ECX[26]xsave
x86-64-v4
AVX512FNoCPUID.(EAX=07H,ECX=0):EBX[16]avx512f
AVX512BWNoCPUID.(EAX=07H,ECX=0):EBX[30]avx512bw
AVX512CDNoCPUID.(EAX=07H,ECX=0):EBX[28]avx512cd
AVX512DQNoCPUID.(EAX=07H,ECX=0):EBX[17]avx512dq
AVX512VLNoCPUID.(EAX=07H,ECX=0):EBX[31]avx512vl

Other extensions

Notable extensions outside the x86-64 levels. Vendors sometimes disable these on individual models. Linked names lead to the extension's instructions.

Known vulnerabilities

The CVEs that the sources of the vulnerability list name as affecting Century Avenue (Shijidadao), in all of its models or in some of them.

Sources

  1. GCC -march=shijidadao (processor alias table)
  2. GCC common/config/i386/cpuinfo.h: Zhaoxin family 7 models from 6Bh are shijidadao
  3. Zhaoxin news: the KX-7000 series launched (December 12, 2023): The KX-7000 series uses Zhaoxin’s new “Century Avenue” (Shijidadao) core microarchitecture.
  4. Zhaoxin products: the architecture code name of each series: Gives the KX-7000 and KH-50000 series the code name Century Avenue (Shijidadao).