PS2 BIOS question! (and NO, its NOT "Where can I get one?")

Goku7 · August 11th, 2002

Ok, we all know that the PS2 is backward compatible with PS1 games, because its supposed to have the old 32-bit PS1 CPU in it or something like that.

Anyway, I was wondering, if that's the case, would it be possible to have the PS2 BIOS actually interface and run emu's like ePSXe just like a PS1 BIOS would?

No, I'm not so stupid as to think that that would give ePSXe the ability to play PS2 games; I'm just curious as to how far that backward compatibility can be abused. It'd be an interesting experiment, nonetheless, seeing ePSXe running, say, FF9 using the PS2 BIOS.

And why, you ask? Just to see if we can. Why would we care if it does? So we could put those already-existing PS2 BIOS images that are floatin' around on the 'net to some use!

__________________
A 233Mhz CPU. Its not just slow, its a CURSE!!

**Shiori** · August 11th, 2002

No one even knows for sure if those dumps are real and not some dummy files.

SCPH-10000 is "supposed" to be 4 MB, yet the "SCPH-18000 BIOS" is as big as a PSX BIOS.

__________________
"...And when I finally meet you again, I want to ask you - have you found what you were looking for? Because that's what I felt you were doing, all these years. And I want to hear you answer, "Yes, I have, thank you for asking," and we'll be together again, until the end of our days..."

Goku7 · August 12th, 2002

Well, unfortunately I'm gonna be gone for the next two weeks, so I'm not gonna be able to test this theory out soon anyway. Let's just say my family picked a real lousy time for a vacation, and it's even interfering with my regristration for college.

So, if anyone does decide to try it out, or has information on whether or not it could work, I'll be looking forward to catching up on it two weeks from now.

__________________
A 233Mhz CPU. Its not just slow, its a CURSE!!

Omnicrash · August 12th, 2002

Nope, that wouldn't work, the ps2 has a separate chip for ps1 games.

__________________
yve_verstrepen@hotmail.com

**Bgnome** · August 12th, 2002

i have seen apps that will dump a ps2 bios but i havent tried them yet..
so i would assume that there would most likely be some real bios images out there..

__________________
May the Gnome™ be With You

**Shadow Lady** · August 13th, 2002

I tried and... didnt work :P

__________________

Main Rig: Pentium Dual-Core E2160 @ 2.8GHz -- 9600GT @ 715/1033MHz -- 4GB DDR2-667 4-4-4-12 -- Windows Server 2008 SP2
Collecting dust: AMD Athlon XP 2600+ -- ATI Radeon 9500 Pro -- SB Live 5.1 Digital -- 2.5GB DDR 2-2-2-5 Ram -- Windows 2003 server r2 SP1

MasterYoshidino · August 16th, 2002

from my knowledge
NO
the playstation 2 has two chips [i.e. two BIOSes]
one is the ps2 bios
and the other is just a hash of the BIOS thats on the PS-ONE [the compact version of PSX]

so there fore having a ps2 BIOS will not give you capability to play PSX games

__________________
If you like psx games and/or quake iii arena visit my site lol

here are my recommended ePSXe settings

Also known by the handle
[NaTTaS]Yoshi

Yoshi's version of the BFG10K is the RAILGUN!

MY SPECS
P4 1.8A @ 2.41 GHZ ; 256 DDR 333MHz
GeForce4 Ti4600 (300/650)
Via P4PB 400 Motherboard

August 11th, 2002	#1 (permalink)
Goku7 Diehard 3Dfx Fanboy! Join Date: Aug 2001 Location: Kicking Kuja's ass, all with the power of 3Dfx!! Posts: 544	PS2 BIOS question! (and NO, its NOT "Where can I get one?") Ok, we all know that the PS2 is backward compatible with PS1 games, because its supposed to have the old 32-bit PS1 CPU in it or something like that. Anyway, I was wondering, if that's the case, would it be possible to have the PS2 BIOS actually interface and run emu's like ePSXe just like a PS1 BIOS would? No, I'm not so stupid as to think that that would give ePSXe the ability to play PS2 games; I'm just curious as to how far that backward compatibility can be abused. It'd be an interesting experiment, nonetheless, seeing ePSXe running, say, FF9 using the PS2 BIOS. And why, you ask? Just to see if we can. Why would we care if it does? So we could put those already-existing PS2 BIOS images that are floatin' around on the 'net to some use! __________________ A 233Mhz CPU. Its not just slow, its a CURSE!!

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August 11th, 2002	#2 (permalink)
Shiori :3 Join Date: Aug 2001 Location: Seoul, South Korea Posts: 10,126	No one even knows for sure if those dumps are real and not some dummy files. SCPH-10000 is "supposed" to be 4 MB, yet the "SCPH-18000 BIOS" is as big as a PSX BIOS. __________________ "...And when I finally meet you again, I want to ask you - have you found what you were looking for? Because that's what I felt you were doing, all these years. And I want to hear you answer, "Yes, I have, thank you for asking," and we'll be together again, until the end of our days..."

August 12th, 2002	#3 (permalink)
Goku7 Diehard 3Dfx Fanboy! Join Date: Aug 2001 Location: Kicking Kuja's ass, all with the power of 3Dfx!! Posts: 544	Well, unfortunately I'm gonna be gone for the next two weeks, so I'm not gonna be able to test this theory out soon anyway. Let's just say my family picked a real lousy time for a vacation, and it's even interfering with my regristration for college. So, if anyone does decide to try it out, or has information on whether or not it could work, I'll be looking forward to catching up on it two weeks from now. __________________ A 233Mhz CPU. Its not just slow, its a CURSE!!

August 12th, 2002	#4 (permalink)
Omnicrash Registered User Join Date: Aug 2002 Posts: 7	Nope, that wouldn't work, the ps2 has a separate chip for ps1 games. __________________ yve_verstrepen@hotmail.com

August 12th, 2002	#5 (permalink)
Bgnome Who Da Gnome? Join Date: Apr 2001 Location: At Home Posts: 2,441	i have seen apps that will dump a ps2 bios but i havent tried them yet.. so i would assume that there would most likely be some real bios images out there.. __________________ May the Gnome™ be With You

August 13th, 2002	#6 (permalink)
Shadow Lady Advanced Newbie Join Date: Jul 2001 Location: Bogotá... not that it matters... Posts: 5,792	I tried and... didnt work :P __________________ Main Rig: Pentium Dual-Core E2160 @ 2.8GHz -- 9600GT @ 715/1033MHz -- 4GB DDR2-667 4-4-4-12 -- Windows Server 2008 SP2 Collecting dust: AMD Athlon XP 2600+ -- ATI Radeon 9500 Pro -- SB Live 5.1 Digital -- 2.5GB DDR 2-2-2-5 Ram -- Windows 2003 server r2 SP1

August 16th, 2002	#7 (permalink)
MasterYoshidino [NaTTaS]Member Join Date: Jul 2002 Location: San Diego, CA Posts: 122	from my knowledge NO the playstation 2 has two chips [i.e. two BIOSes] one is the ps2 bios and the other is just a hash of the BIOS thats on the PS-ONE [the compact version of PSX] so there fore having a ps2 BIOS will not give you capability to play PSX games __________________ If you like psx games and/or quake iii arena visit my site lol here are my recommended ePSXe settings Also known by the handle [NaTTaS]Yoshi Yoshi's version of the BFG10K is the RAILGUN! MY SPECS P4 1.8A @ 2.41 GHZ ; 256 DDR 333MHz GeForce4 Ti4600 (300/650) Via P4PB 400 Motherboard