Azu wrote:

revolution wrote:

If you are generating a PE file then you will only see a reduction in size if it passes a page boundary (512B). And your code will fail if you try to access into the next VM page.

Code:

format PE ...
...
mov [any_data],eax ;CRASH: the data has not been paged into your memory or you overwrite the following page of data
.data
string1 db 'Hello world!',0  ;13 bytes forces a new 512 byte section in file
some_data = $ ;Okay if you have less than 4083 bytes used at runtime
any_data = $+4096 ;error at runtime, the data was not reserved!    

What's that have to do with wsprintf?

Ermm, nothing whatsoever. But why do you drag in a post from [url=https://board.flatassembler.net/topic.php?p=93865#93865]another thread[/ur] and paste it here as if to say I posted it here? Very bad manners!

It isn't a new calling standard, it's just how the vararg function, wsprintf, should use stdcall.. so that code is smaller, and all the Windows functions will use the same standard.

Same reason you put words in my mouth that I never said, which is even worse manners.

Before you ask for a friggin link.. page 7, this thread.

Azu wrote:

It isn't a new calling standard, it's just how the vararg function, wsprintf, should use stdcall.. so that code is smaller, and all the Windows functions will use the same standard.

that does not make the limitations it imposes any less cumbersome.

you messed up your PoC here
pop ecx
pusha
pop edi
pop esi

pushad pushes all registers onto stack, what you pop off won't be function arguments but old registers. (see: killing usefullness of stack)

Pop the vararg registers off the stack as you need them (when you find %s in the format string)    

Azu wrote:

Same reason you put words in my mouth that I never said, which is even worse manners.

Before you ask for a friggin link.. page 7, this thread.

I never put words in your mouth. Sorry, you are just not being sensible.

You are already making a branch, just put the arg in that, problem solved. Now lemme sleep :<

Azu wrote:

You are already making a branch, just put the arg in that, problem solved. Now lemme sleep :<

No, I don't, I have used the result of SETcc as an index for a string table where both fmt strings are stored.

And your PoC should at least not crash, otherwise you are proposing something you don't even know if it could really work (which don't forget the point that will be seriously slower than simple cdecl if we consider your spoken proposal)

Have a good night.

You're only two posts in that page, genius.

Azu wrote:

You're only two posts in that page, genius.

Hmm, well I count three, 1, no quotation, 2, no quotation, 3, where I do quote you.. Which one please?

Code:

Pop the vararg registers off the stack as you need them (when you find %s in the format string)    

Happy now? Now let me sleep already

You know what I mean. The first two. Now fuck off.

See? I can do it too, jackass.

Azu wrote:

See? I can do it too, jackass.

Do what? Insult people?