CODEWITHSUNDEEP
x86eflags
ella
ella

Reputation: 11

set only zero flag in assembly, not affecting other flags

I need to set the zero flag in assembly but it shouldn't change any other flags. so I was thinking to do pushf, pop it to eax but I have no idea how to give the flag reg it's new value. all I can think of :

pushf
pop eax,
or eax , 000..1..00 // set the location of zf to 1

and from here I have no idea what to do.

Upvotes: 0

Views: 629

Answers (1)

Sep Roland
Sep Roland

Reputation: 39306

Simplest solution not involving any other register:

pushf
or dword [esp],64  ;bit[6] has ZF
popf

Upvotes: 1

Related Questions