Do I have 32 bit or 64 bit?

[Nureo]

Hello there!

How can anybody knows (by using a command) if you have a 64 bit or 32 bit hardware?

I am not asking about the Operative System architecture, but the hardware.

Thank you all!

[jggimi]

Your dmes(8) reports cpu(4) probe output. Look for the keyword "LONG" among the CPU feature set.

[ocicat]

Originally Posted by Nureo

How can anybody knows (by using a command) if you have a 64 bit or 32 bit hardware?

$ dmesg | grep LONG

[Nureo]

Well.

$ dmesg | grep LONG
cpu0: FPU,V86 [...]

I assume that V86 is "64bit" architecture.

$ dmesg
[...]
pchb0 at pci0 dev 0 function 0 "AMD AMD64 14h Host" rev 0x00
[...]
pchb1 at pci0 dev 24 function 0 "AMD AMD64 14h Link Cfg" rev 0x43
pchb2 at pci0 dev 24 function 1 "AMD AMD64 14h Address Map" rev 0x00
pchb3 at pci0 dev 24 function 2 "AMD AMD64 14h DRAM Cfg" rev 0x00
km0 at pci0 dev 24 function 3 "AMD AMD64 14h Misc Cfg" rev 0x00
pchb4 at pci0 dev 24 function 4 "AMD AMD64 14h CPU Power" rev 0x00
pchb5 at pci0 dev 24 function 5 "AMD AMD64 14h Reserved" rev 0x00
pchb6 at pci0 dev 24 function 6 "AMD AMD64 14h NB Power" rev 0x00
pchb7 at pci0 dev 24 function 7 "AMD AMD64 14h Reserved" rev 0x00
[...]

I shorted the answer, but there it says "AMD AMD64", so it is 64bit.

[jggimi]

Originally Posted by Nureo

I assume that V86 is "64bit" architecture.

LONG is 64-bit architecture.

[scottro]

uname -m will also show the architecture on most Unix and Unix-like systems, including OpenBSD.

[Nureo]

But,

uname -m

is to know the architecture of Operative System, not the hardware.

I am right?

[ocicat]

Originally Posted by Nureo

I assume that V86 is "64bit" architecture.

No.

If "LONG" is found in the feature set of cpu0, then the Intel-like processor is capable of 64-bit instructions, & can potentially run OpenBSD's amd64 architecture. The fact that:

$ dmesg | grep LONG

...produced a match on cpu0 in the abbreviated output provided supports this claim. If you look towards the end of the matched line, you should find "LONG" listed.

If "LONG' is not in the processor's feature set, grep(4) will not display any output.

[ocicat]

Originally Posted by scottro

uname -m will also show the architecture on most Unix and Unix-like systems, including OpenBSD.

scottro, the original question was on the hardware capabilities, not on the operating system installed.

[scottro]

Ah, missed that, thanks.

[Nureo]

Hi! Here:

$ dmesg | grep LONG
cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,P GE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT ,NXE,MMXX,FFXSR,PAGE1GB,LONG,SSE3,MWAIT,SSSE3,CX16,POPCNT,LAHF,CMPLEG,SVM,EAPI CSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,IBS,SKINIT,WDT,IT SC

It supports 64bit!

Thank you everybody! Thank you ocicat!