Category:MMIX: Difference between revisions

:''MMIX is a machine that operates primarily on 64-bit words. It has 256 general-purpose 64-bit registers that each can hold either fixed-point or floating-point numbers. Most instructions have the 4-byte form `OP‘OP X Y Z'Z’, where each of OP, X, Y, and Z is a single 8-bit byte. For example, if OP is the code for ADD the meaning is ``X“X=Y+Z''Z”; i.e., ``Set“Set register X to the contents of register Y plus the contents of register Z.''” The 256 possible OP codes fall into a dozen or so easily remembered categories.''