section 7 - Index of

word is optional, it is so indicated. The values which can be assumed by each of thevariables in the various instruction fields are shown under the instruction field'sheading. Note that the symbols used in decoding the various opcode fields of aninstruction are completely arbitrary. Furthermore, the opcode symbols used inone instruction are completely independent of the opcode symbols used in a differentinstruction.7. Timing: The number of oscillator clock cycles required for each instruction syntax isgiven. This information provides the user a basis for comparison of the executiontimes of the various instructions in oscillator clock cycles. Refer to Table A-1 andSection A.8 for a complete explanation of instruction timing, including the meaningof the symbols "aio", "ap" , "ax", "ay", "axy", "ea", "jx", "mv", "mvb", "mvc", "mvm","mvp", "rx", "wio", "wp", "wx", and ''wy''.8. Memory: The number of program memory words required for each instruction syntaxis given. This information provides the user a basis for comparison of the numberof program memory locations required for each of the various instructions in 24-bit program memory words. Refer to Table A-1 and Section A.8 for a completeexplanation of instruction memory requirements, including the meaning of the symbols"ea" and "mv".A.3 NOTATIONEach instruction description contains symbols used to abbreviate certain operands andoperations. Table A-1 lists the symbols used and their respective meanings. Dependingon the context, registers refer to either the register itself or the contents of the register.