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Does anyone know this RCP doc from SGI???

Gonetz

Plugin Developer (GlideN64)
This is kind of presentation. Can be useful for people, who want to know technical details about RCP. I did not see it before, but it does not have anything new for me either.
 
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rogerhanin2002

New member
ok thanks for your answer

about a GFX plugin point of view, I think it's useless to.
The interesting thing is perhaps the RSP spec:
RSP (2 parts): a scalar processor (SIMD like i think)
and a 8 stage pipeline vector processor with 32 x 128 bits registers

but it certainly more a post for MESS/MAME forum.

I've just post the link cause i've never seen it before in any site about N64 (hard or soft) developement.
 

Gonetz

Plugin Developer (GlideN64)
It's useless for devs - the information contains only general overview.
Devs know all these specs and much more beside that - RSP plugin emulates all instructions of this chip. But for common users this document can be very useful to learn about abilities of the hardware.
 

angrylion

New member
The vector unit handles SIMD instructions, the scalar unit implements a subset of the conventional MIPS instruction set.
 
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rogerhanin2002

New member
@angrylion
i don't want to be rude and i want to trust you but at page 6 of this presentation, they say about RSP:

♦ MIPS RISC Scalar/Instruction Processor
♦ 8 unit Parallel Vector Processor

so i understand it as it is the scalar unit that handle SIMD instructions.
but i must be wrong i you certify me that this is the invert situation.

at time i'm writing i'm understanding that the "/instruction" note must mean only
MIPS instruction compatible.
so, as i trust you, you answered to another question i had about who handle SIMD instructions. Thank you.


@all
the other point (i must double check) is the twenty two 128 bit vector registers.
I've never seen it in any N64 doc. But again i must be wrong.
that's the only two points that trouble me in this doc, and sure this is a brief description doc, too vague to be interesting for coding.


EDIT: my bad, i'd read again the Michael Tedder's doc.
there are all answers to my question.
sorry for having waste your time.

must read before asking question.
must read before asking question.
must read before asking question.
must read before asking question.
...
...
 
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