PSP SMS emulator V0.4

**djrobx** · June 28th, 2005, 20:51

Looking forward to the update, yoshihiro!

**zektor** · June 29th, 2005, 06:15

YES! I am extremely glad to hear you are actively working on the emulator. When I first heard of PSP emulation (that is emulators working on the PSP) I was so eager to see SMS emulation...more than anything. I'm very glad that the emulator does not exhibit certain glitches quite a few others do, such as the "shooting bases" glitch in Astro Warrior. It seems quite a few SMS emulators I have tested (between PC and Palm) exhibit that problem, which leads me to believe that the bad code had just been copied through various emulators. This emulator does not do that, and the compatibility rate is excellent! Surely Revive Zanoni!

**Simon82** · June 29th, 2005, 07:36

Originally Posted by Ziim

There is some slow down in games i have played. I think and overclock option would be nice.

And for those who dont like to overclock, ya dont have to.

Well.. I think that the PSP hardware can handle easily an emulator of a 3,5mhz Z80 8bit cpu. If there's some slowdown we have to wait that the emulators will be optimized to a lower level. There're so many emulators for less powerful hardwares like the GBA that with a 16mhz cpu can run all the games for this platform with Drsms.
Overclock is not the way I'd like to see emulators for this wonderful and powerful machine.

**djrobx** · June 29th, 2005, 07:59

Yes, but clocking to 333mhz is an easy fix that can be implemented quickly. Optimizing the SMS emulator down to the point where it runs *everything* at 222mhz may take a long time. NesterJ doesn't even run all NES games at 222mhz with full speed. The GBA emulator seems to be using tile based emulation, which is much faster but with major compatibility consequeces.

I'd enable a 333mhz option now, optimize later. I usually play plugged in anyway.

**Ziim** · June 29th, 2005, 08:41

3 Cheers for 333mhz!

**Simon82** · June 29th, 2005, 20:35

It's an easy way to discharge easily our battery with the possibility that you can "damage" in some way your psp. I don't think that battery was the only problem to convince sony to lock cpu frequency at 222 mhz.
I've seen fast video emulation with this emulator and already now we don't need overclocking.

**Ziim** · June 30th, 2005, 03:26

The postings on sony's forums state that the only reason the clock was lowered to 222mhz was battery life! Grand Theft Auto has been rumored at running 333mhz. And the soon to be released new battery from Sony, also rumered to last about 3 times longer than the current battery.

I love my PSP.

**Simon82** · June 30th, 2005, 07:42

Originally Posted by Ziim

The postings on sony's forums state that the only reason the clock was lowered to 222mhz was battery life! Grand Theft Auto has been rumored at running 333mhz. And the soon to be released new battery from Sony, also rumered to last about 3 times longer than the current battery.

I love my PSP.

Every console that has lower cpu frequency can run easily emulators of 8bit cpu. From the GBA to Saturn to GP32 to Ngage.
I love the work done from Yoshiiro but I think that for all programmers, overclock is not the way to solve speed problems. I think they should take 222mhz like a standard.