RISC vs. CISC processors?

[lebevti]

for what types of applications is each type of processor used and why?

are PIC's a kind of RISC processor?

are RISC processors phasing out CISC processors?

what are the strenghts and weaknesses of each?

Thanks.

 

[Ian Rogers]

Read this... https://www.hitequest.com/Kiss/risc_cisc.htm

 

[Pommie]

Who cares, they both work. RISC is just at a simpler level that compilers make complex.

Mike.

 

[Wond3rboy]

Hi. Heres it also lined up properly, a comparison by stanford.

https://www-cs-faculty.stanford.edu/~eroberts/courses/soco/projects/2000-01/risc/risccisc/

PS: Lolz! Mike. There should be a like button for that reply.

 

[3v0]

Read this... https://www.hitequest.com/Kiss/risc_cisc.htm

And the two lines from that link that makes the rest nearly pointless is

RISC and CISC architectures are becoming more and more alike. Many of today's RISC chips support just as many instructions as yesterday's CISC chips.

The CISC vs RISC thing really only made sense at the bleeding edge of processing speed. With fewer and less complex instructions you could clock the RISC CPU faster, and with luck, overcome the need for more instructions, in theory out preforming the slower more complex RISC machine.

 

[be80be]

3v0 you may want to change this part

slower more complex RISC machine

To this

slower more complex CISC machine

 

[Mr RB]

I always wanted to build a super-reduced instruction set micro. It appeals to my sense of "minimalism".

All a micro really needs are two instructions;
* bit test, if bit set/clear goto X
* bit set/clear
(assuming the bit test and bit set/clear can be applied to both RAM and port pins)

Everything else can be done with those two instructions...