Bug in mov to/from control register

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CandyMan

Joined: 04 Sep 2009
Posts: 346
Location: film "CandyMan" directed through Bernard Rose OR Candy Shop

CandyMan

Code:

        use32
        mov     eax,cr8         ;\ fasm 1.73.22 generates the same code
        mov     eax,cr9         ;/
        mov     cr8,eax         ;\ same as above
        mov     cr9,eax         ;/

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02 Mar 2020, 21:23

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8016
Location: Kraków, Poland

Tomasz Grysztar

Probably CR9 should not be allowed at all here. Looking at recent AMD manuals I see that only CR8 has ever been documented for F0-prefixed variant.

02 Mar 2020, 21:38

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