push byte

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VelcroMan

Joined: 14 Feb 2010
Posts: 7
Location: Sweden

VelcroMan 09 Oct 2010, 09:12

How do i push a single byte?
Something like:

Code:

push byte 0

Is it enough with:

Code:

push 0

Or do i need to specify the size somehow?

Last edited by VelcroMan on 09 Oct 2010, 09:29; edited 1 time in total

09 Oct 2010, 09:12

edemko

Joined: 18 Jul 2009
Posts: 549

edemko 09 Oct 2010, 09:17

http://board.flatassembler.net/topic.php?t=11696&start=9

09 Oct 2010, 09:17

VelcroMan

Joined: 14 Feb 2010
Posts: 7
Location: Sweden

VelcroMan 09 Oct 2010, 09:30

edemko wrote:

http://board.flatassembler.net/topic.php?t=11696&start=9

So this would "push" exactly a byte?

Code:

lea esp, [esp-1]
mov byte[esp], byte_value

09 Oct 2010, 09:30

ManOfSteel

Joined: 02 Feb 2005
Posts: 1154

ManOfSteel 09 Oct 2010, 09:34

Why would you want to do this in a 32-bit based architecture?

Clear the dword register or memory location and move your byte into it (or simply movzx), then push the dword into the stack.

09 Oct 2010, 09:34

DOS386

Joined: 08 Dec 2006
Posts: 1900

DOS386 14 Oct 2010, 03:23

FAQ: http://board.flatassembler.net/topic.php?t=6597

PS: today I moved 1'000'000'000 threads from Main into other subforums

14 Oct 2010, 03:23

edemko

Joined: 18 Jul 2009
Posts: 549

edemko 14 Oct 2010, 03:55

DOS386 wrote:

PS: today I moved 1'000'000'000 threads from Main into other subforums

14 Oct 2010, 03:55

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