[PATCH] CPU improvements

[Battler]

The patch is attached. It does the following:
- Adds a separate group for Socket 5 Pentiums, for use with Socket 5 boards such as the Advanced/EV;
- Adds a whole ton of new Pentium variants, mostly Pentium MMX OverDrives, but also a never publicly released (but development manufactures exist of it) Pentium 50 MHz CPU.

[SarahWalker]

Mostly okay, just a couple of comments :

- I don't understand the purpose of the overclocked 5x86 entries - the overclocked P75+ appears to be identical to the original, and the overclocked P75 appears pretty much the same.
- The Premiere/PCI board (the only socket 4 board currently emulated) doesn't support a 50MHz bus, so the 50 and 100 MHz CPUs should be removed.
- I couldn't find any evidence of the Overdrive MMX 150/50 existing; can you point me to a reference?

[Battler]

Well then just remove these CPU's from my patch, and it should be fine. :p

[SarahWalker]

Okay, merged to rev 417.

[banjosteve]

Hi there, the overdrive mmx 150/180 does exist http://www.cpu-world.com/CPUs/Pentium/I ... 3V150.html it's basicly designed for P75 on boards with overdrive sockets. so a doubled P75 = P150

[SarahWalker]

The chip you've linked to there is the 60 MHz bus version though, which is currently emulated.

[banjosteve]

my bad wrong link.. http://www.cpu-world.com/CPUs/Pentium/I ... 0X180.html its also talked about on the https://en.wikipedia.org/wiki/P5_(microarchitecture) under the overdrive section

[Battler]

Yes, I just noticed that the "Pentium OverDrive with MMX Technology" sections clearly lists the 150/50.

Edit: According to this site: http://www.motherboards.org/mobot/mothe ... %2BBatman/ , the Premiere/PCI only supports 60 MHz bus, so the 66 MHz bus CPU's should then be removed too.
The Premiere/PCI II, however, also supports the 50 MHz and 66 MHz buses and I have in progress emulation of it, just need to understand why it likes hanging, though it's probably the interface.

Edit #2: Ah wait, the Premiere/PCI II is Socket 5, then it's not useful for Socket 4 stuff.

[SarahWalker]

There are two variations of the Premiere/PCI. Batman only supports 60 MHz FSB, Batman's Revenge supports 66 MHz as well, plus has integrated I/O. PCem is aiming at the latter.