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Which 32-bit / 64-bit processor architecture has the simplest instruction set?

I feel very comfortable dealing with the 32-bit PowerPC build code, but I completely lost it, trying to understand the x86 code. Could any of the other common architectures such as ARM, MIPS, Sparc, etc., be simpler than the x86 instruction set?

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Well, most RISCs are very similar to each other, so if you know PPC well, then switching to ARM, MIPS or SPARC will be very fast. First I found out about SPARC, and then I was able to pick up a few minutes of MIPS and PPC.

What makes x86 so confusing is not really its assembler, but the design of the processor. People tend to depend:

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