Faster Littlejohn

[washo]

Hi all,
I was just wondering if it is possible to OC LJ0.4 to 166MHz to allow more speed (even if most of the games are already fullspeed).
I went on www.gp32world.co.uk to have a look at the overclocking parameters but I was not able to find any freq in the FXE...
It is possible?
BTW : The same question for all Rlyeh emu...

see you :lol:

 

[0-bake]

i would appreciate an oc version, because then you can have fullspeed with vsync=on

 

[Steve-O]

u can usually do it yourself cant you??? With a Hex Editor or what ever they call them....

 

[0-bake]

no, i cant. but if you can, maybe you can give us a "how to" or explain it quickly....
i haven't started coding for the gp yet, so i don't know anything about it.
(but i know, how to use a hex-editor and have basic experiences with c)

thanks

in the source of ljgp03 (gpmain.c) is the line

GpClockSpeedChange(67800000, 0x69032, 3);

i guess, here's the part, where you can set it to 166mhz, or what you like..
but i have absolutely no idea, how to set it to 166mhz, or even how to compile this bunch of files...(with devkitadv??)
a quick introduction for hex-editing the .fxe would be much easier, i guess...

 

[phoda]

Look here

 

[damaki]

Doesn't seem to be overclockable without source code. I decompressed the fxe to a gxb but I can't find the cpu frequency. It should be 133 MHz, but it cannot be found. Modifying the source code is the only solution so far.

 

[TandeM]

Perhaps it's running at 132MHz? Either way, the audio might get distorted (think SNES9xGP or GPEngine @ 166MHz) since LJGP wasn't intended to be overclocked.

 

[0-bake]

at least, i would like to give it a try....

with wich compiler/sdk is the source compiled? the sourcecode for version 0.3 is on yoyo's website, so it should be possible, shouldn't it?

and can, besides, someone tell me, how to change the clockspeed?
as already meantioned, it seems to be here

GpClockSpeedChange(67800000, 0x69032, 3);

what to edit to have it changed to 166?

 

[PinkSpider]

does it have to be as high as 166mhz? cause its already running at pretty much full speed (some slowdown)

 

[washo]

I think 166MHz would allow to play at fullspeed withVsync on (and maybe the sound filtering on HIGH)
Im not sure...:unsure:
But the 0.4 sources are not available : thats too bad : Even if someone manage to make it running faster it wont be with the last release...

see you :lol:

BTW : Has anyone heard from Yoyo recently? : He seems to be working a lot for the Zodiac but still no OSNES 0.3...

 

[CU_AMiGA]

How about using a HEX editor to get rid of double buffering in the emus to get rid of that bleeding split screen bug. Little John runs excellent the way it is really.

 

[damaki]

How about using a HEX editor to get rid of double buffering in the emus to get rid of that bleeding split screen bug. Little John runs excellent the way it is really.

Would be some kind of magic trick ... Hex editing is not really usable for heavy modifications

 

[EvilDragon]

yoyo's working on his projects for the Zodiac AND GP32 at the same time.
The source is very similar - improving the Z-Version also improves the GP32 version. And he HAS clarified that he DIDN'T abandon the GP32.

He just has a lot to do at the moment and very little time to spend on coding...

 

[diablo2]

has their been any news from rlyeh?

 

[Azure]

no, not in awhile.