Comment Re:So how long until linux/psx2 is out? (Score 1) 218
P.S. the Dreamcast has an MMU because WinCE wants a MMU, and Sega wanted WinCE, in case it took off. That's why it can run a relitavly normal NetBSD or Linux port (I don't know of a Linux port, there was a BSD port of some sort).
Oh come now. At least part of the reason that the Dreamcast has an MMU is that there is no SH-4 part shipping without one. Hitachi is targeting SH-4 to WinCE with or without Sega. You buy an SH4, you get an MMU.
Microprocessor reports says about EE: While the Emotion Engine is not cheap, neither is it wimpy. It's based on a superscalar MIPS R4000 core, but it has a new set of 128-bit integer SIMD instructions. At its target frequency of 300 MHz, it packs a floating-point punch of 6.2 GFLOPS, three times that of Intel's 500-MHz Pentium III with SSE and 15 times that of a Celeron-400 (which lacks SSE). With the Emotion Engine pumping out 75 million polygons per second and the rendering chip drawing polygons at 2.4 billion pixels per second, the new PlayStation will have real-time graphics that rival the computer-generated animation in movies like Toy Story.
Interestingly it doesn't specifically state that EE has an MMU, but it's rather hard to believe that Sony would ship PS2 without an MMU - since we're being led to believe that PS2 is supposed to be much more than just a game platform anyway.
It is interesting that the MPR report says that EE is "based on" an R4000 core, rather than just saying it's executing an extended MIPS instruction set. If it is based on a R4000 core, it becomes much harder to believe that EE doesn't have an MMU built in.
Oh come now. At least part of the reason that the Dreamcast has an MMU is that there is no SH-4 part shipping without one. Hitachi is targeting SH-4 to WinCE with or without Sega. You buy an SH4, you get an MMU.
Microprocessor reports says about EE: While the Emotion Engine is not cheap, neither is it wimpy. It's based on a superscalar MIPS R4000 core, but it has a new set of 128-bit integer SIMD instructions. At its target frequency of 300 MHz, it packs a floating-point punch of 6.2 GFLOPS, three times that of Intel's 500-MHz Pentium III with SSE and 15 times that of a Celeron-400 (which lacks SSE). With the Emotion Engine pumping out 75 million polygons per second and the rendering chip drawing polygons at 2.4 billion pixels per second, the new PlayStation will have real-time graphics that rival the computer-generated animation in movies like Toy Story.
Interestingly it doesn't specifically state that EE has an MMU, but it's rather hard to believe that Sony would ship PS2 without an MMU - since we're being led to believe that PS2 is supposed to be much more than just a game platform anyway.
It is interesting that the MPR report says that EE is "based on" an R4000 core, rather than just saying it's executing an extended MIPS instruction set. If it is based on a R4000 core, it becomes much harder to believe that EE doesn't have an MMU built in.
