It is posted in the correct thread. I wanted to show that compatibility on other platforms than original is not very good. So, playing PS1 games on PS2, PS3 consoles will affect the compatibility, 100% compatibility doesn't exist from my point of view.
Huh, I had no idea. Right now I've got my PAL PS2 hooked up to a CRT with component and it's working pretty well, so I guess I'll stick with that rather than fiddle around with a PS3 on a 720/1080p TV trying to get it to display 240p PS1 games through HDMI.
PS3 Test Kit. =) Region free and does an ok job of dealing with the interlace mode in early ps2 games. Just my opinion.
The PlayStation CPU is a soft core in an ASIC from LSI (ARM is probably the most famous example of a soft core in an ASIC), the MDEC was based on LSI's JPEG decoder soft core, I believe the serial and controller ports were likely based on existing code in LSI's library. I believe GTE and the bus interface was specific to the PlayStation, no idea about IRQ/DMA. They had to cut out some bits from the CPU and MDEC to make it fit. MDEC changed to RLE and the CPU lost the ability to use the scratchpad as data cache (the full version has that as a run time configurable option). When creating the IOP it's likely they took the exact same code, upgraded the DMA, added new peripherals and then baked it into a new ASIC. So it's not really emulating, AFAIK it's using most of the exact same HDL. I don't know why they switched away to LSI to use deckard, it might be that LSI saw that Sony would be switching away from them completely on the PS3 and decided to jack up the price. PS3 are fine for PS2 games, but PS1 games are run using a completely new software emulator & it's not great IIRC.
I haven't had too much problems on the ps1 front (I know it's pure emulation). I believe the emulator has also been updated a few times.
Yeah, I would stick with CRT for anything 240p. However, there are some options if you want to use an LCD display: According to the video from My Life in Gaming, the PS TV is a good option if you want to play original PS1 and PS2 titles over HDMI. Of course, you can't play the original discs; you would need to buy the titles digitally. A reverse compatible PS3 is another option since they can play PS1 and PS2 games pretty accurately. PS2 would be hardware based but I think PS1 is emulated. However, from what I've read, the silver bullet of 240p on an LCD is the OSSC (Open Source Scan Converter). That will allow you to play nearly all your 240p game consoles at high quality and minimal input lag on an LCD.
PS3 is region free anyway, or it's region-free for PS1/PS2? The latter would be pretty cool, I haven't yet managed to play my NTSC Chrono Cross... My PS3 fatty won't play Wipeout 3: Special Edition as it freezes as soon as you start the race - believe this to be an anti-copying measure.
No ps3 is not region free. Just ps3 games generally don't use region lock (just a small handful). PS2 & PS1 disc are still region locked on old BC PS3 systems. Test kits how ever are not region locked on ps2/ps1 disc. It's one of the perks for why I still own both a ps3 test kit and a bc launch ps3.
ps2 also has an optional texture filter that doesn't suck to smooth out graphics and can read the disc faster so shorter load times (also optional)