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January 21, 2022, 06:56:52 am


Use of ePSXe before 2.0 is highly discouraged. Mednafen/RetroArch is recommended for playing/testing, pSX is recommended for debugging.

Hacked pSX 1.13 (to manually set fps)

Started by Xifanie, May 27, 2010, 12:50:26 pm



Hacked psxrel 1.13 (set fps)

- Download the hacked pSX 1.13
- Hex edit the new fps you want at 0x00105F08 (set by default at 120FPS)
- Make sure frame skipping is enabled: File/Configuration/Graphics/Frame Skipping

  You can set the fps very high, but it will still slow down on effects; whoever,
  AI decisions and unit movement will be completed much faster.
  You can also change the fps during gameplay with a memory editor at address
  psxrel.exe+105F08. Remember it is a float type.

  0x00105F08 : Float (4 bytes)

Just a few examples
 60fps: 00007042
 80fps: 0000A042
 90fps: 0000B442
120fps: 0000F042
150fps: 00001643
180fps: 00003443
200fps: 00004843
240fps: 00007043
300fps: 00009643
360fps: 0000B443
400fps: 0000C843
  • Modding version: PSX
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Anything is possible as long as it is within the hardware's limits. (ie. disc space, RAM, Video RAM, processor, etc.)
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<Raijinili> remember that? it was awful


About time!!

Hacking on pSX seemed so slow, because it had no way to change the FPS(as far as i know, changing it affected nothing)



I ran into this strange bug today....  and it seems to be happening only in fullscreen mode. This only occurs when running the normal pSX (no debugger). Once upon loading a save game into the world map, the game throttles at full speed....   This is not suppose to happen right?  Even turning off Frameskip does not solve this. I was recording a video that would required the game running at normal speed.


I remember I was trying to get this to work for some time now. For some reason, it just wouldn't work. Last night, I figured out why. It was rather embarassingly simple. Just turn off Vsync. Oh well.


Wait, just turn off Vsync and it will work? Awesome. Now I don't have to wait ages for the game to load and get to hacking quicker.
  • Modding version: Other/Unknown


wow I just started using psxfin over epsxe just because some mods kept freezing for me on epsxe. I was already hating not being able to increase fps so I'm so glad I saw this post! What a QoL improvement!