What is the minimum amount of instructions you need in a CPU

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psycopathicteen
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Joined: Wed May 19, 2010 6:12 pm

Re: What is the minimum amount of instructions you need in a

Post by psycopathicteen »

I wish there was a 16-bit RISC CPU that competed in price with the 65816. I think a RISC architecture with 8 16-bit registers and both a 16 bit data and address bus would've been pretty close to the 65816 in price. If you think about, the 65816 actually has 15 8-bit registers, just not arranged in the most orthogonal way.
lidnariq
Posts: 11432
Joined: Sun Apr 13, 2008 11:12 am

Re: What is the minimum amount of instructions you need in a

Post by lidnariq »

Look into the MSP430.

Admittedly, I don't think it ever saw a version that can operate from external memory, so it's pretty strictly a microcontroller instead of microprocessor.
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