Cheat Engine

[wb185_]

So I'm extremely new to cheat engine and trying to self teach myself I guess. I've watched a youtube video or 2 but they don't do much to help me in this situation.

So I coded this here:
[ENABLE]
//code from here to '[DISABLE]' will be used to enable the cheat
alloc(newmem,2048,"MHUR.exe"+3922A5D)
label(returnhere)
label(originalcode)
label(exit fov minfov maxfov)
registersymbol(fov minfov maxfov)

newmem: //this is allocated memory, you have read,write,execute access
//place your code here

originalcode:


comiss xmm0,[minfov]
jl exit
comiss xmm0,[maxfov]
jg exit
movss xmm0,[fov]

exit:
movss xmm0,[rcx+14]
jmp returnhere

fov:
dd (float)110
minfov:
dd (float)70
maxfov:
dd (float)110


"MHUR.exe"+3922A5D:
jmp newmem


returnhere:




[DISABLE]
//code from here till the end of the code will be used to disable the cheat
dealloc(newmem)
"MHUR.exe"+3922A5D:
db F3 0F 11 41 14
//movss [rcx+14],xmm0

I found an FOV value in a game called My Hero Ultra Rumble and have since been trying to figure out how to increase my Field of View in the game without it glitching out my screen and turning it black. If I just simply change the FOV value, the second my FOV changes the screen glitches out. I've been trying to make it so the game can change FOV values without everything going to shit but I haven't been able to figure it out. Any tips or pointers?[/code]

[ParkourPenguin]

comiss and similar instructions set the ZF and CF flags according to the result of the comparison. The OF and SF flags are always set to 0. Use above / below mnemonics instead of greater / less: i.e. `jb` instead of `jl` and `ja` instead of `jg`

What's stored in xmm0 before the injection point? If the original code `movss xmm0,[rcx+14]` is what initializes xmm0, then ordering the comparisons before that instruction effectively makes them read uninitialized memory, meaning they're useless at best.

Try right clicking the original instruction in the disassembler (top half of memory view) and see what other addresses that instruction accesses. Maybe you're changing more than you want.

Or maybe other instructions access that address and it would be better to change the value at [rcx+14] instead of just the value being read from it.

[wb185_]