boxeslkp.blogg.se - Pushf instruction crash

(Looking into handling key presses from /forum/viewtopic.I think my real problem is I don't completely understand the stack frame mechanism so I am looking to understand why the following code causes the program execution to resume at the end of the application.

So didn't actually need the flag thought it was a good safety net in-case it was needed.Īlso didn't know the try/except but still can't get the global cooldown so passing it now for in terms of handling player X,Y,Z and hopefully get a basic no-clip going with it.

If you do need to back up eflags, you don't need to restore them just to back them up again a few instructions down.

mov edx, looks like a ridiculous instruction regardless of whether or not ebp is being used as a stack frame pointer.

The above point is useless anyway since you're writing something else to edx right after it.

Use mov edx, instead of pop edx / push edx.

Actually look at the injection point and see what's necessary.

Are you absolutely certain you need to save eflags? Don't do it just because you can.

newSpeed initial value needs to be (double)0 and not (float)0.

newSpeed / newCooldown allocs need 8 bytes.

Doubles take up 8 bytes (64 bits), not 4.

Use a compiled language like C/C++ or at least a JIT-compiled language. If that engine works by interpreting bytecode, that's a horrific way of learning assembly. So far using an basic gamemaker rpg to learn more about scripting and how to assembly Is it the way I'm dealing with trying to compare or perhaps I found a bad pointer to search for?

So far the movement speed works 100% like I would expect it to however trying to get the cooldown and comparing right now is causing a instant crash and can't figure out why. Therefore it moves a 32 bits float value from xmm0 into the pointing valueĪobscanmodule(INJECT,gamemakerproject.exe,F2 0F 11 07 5F 5E 5D 5B 83 C4 08 C3 8B 06) // should be unique MOVSD - Move scalar double-precision floating-point value. So far using an basic gamemaker rpg to learn more about scripting and how to assembly, currently stuck on my first script when compare different stack areas. Posted: Mon 11:40 am Post subject: Need some help with an assembly crash.