I am a bit confused about "pinsrd" example

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Zoltanmatey31

Joined: 10 Jan 2023
Posts: 20

Zoltanmatey31 25 Jan 2023, 19:55

pinsrd xmm4,eax,1 ; insert double word into second position

wouldn't this be 0 bitposition set to 1 therefore the first position gets to be overwritten?

25 Jan 2023, 19:55

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20563
Location: In your JS exploiting you and your system

revolution 25 Jan 2023, 20:24

The imm value is an index, not a bitmap.

25 Jan 2023, 20:24

Furs

Joined: 04 Mar 2016
Posts: 2607

Furs 26 Jan 2023, 14:24

Yeah, it inserts the contents of eax into xmm4 at DWORD index 1 (starts from zero).

26 Jan 2023, 14:24

Zoltanmatey31

Joined: 10 Jan 2023
Posts: 20

Zoltanmatey31 01 Feb 2023, 10:09

Thanks

01 Feb 2023, 10:09

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