PIC单片机常用指令(国外英文资料).doc

PIC单片机常用指令(国外英文资料) The PIC 8 bit machine has three levels, with the corresponding set of instructions. The basic PIC series chips have a total of 33 instructions, each with a 12-digit length. The intermediate PIC chip has 35 instructions, Each instruction is 14 words long; The advanced PIC series has a total of 58 instructions, each of which is 16 words long. Its instructions are backwards compatible. Here the author on PIC 8-bit MCU assembly language instructions the composition and the function of symbols in reading relevant books and materials for beginners started quickly. One, PIC assembles language instruction format The PIC series microcontroller assembly language instruction is the same as the McS-51 single-chip machine assembly language, and each assembly language instruction consists of four parts, which are written in the following format: Operation number 1, operation number 2, operation number 1 annotation Instructions format specification is as follows: the space between the four parts of isolation, spacing can be 1 or more, to ensure that cross assemble, PCS to identify the instructions. The number 1 is the same as the McS-51 single chip, which represents the symbolic address of the command. When the program is compiled, the specific value of the instruction memory address is assigned. A symbol is used in assembly language An address (that is, a label) is easy to view and modify, especially for the representation of an instruction transfer address. The label is an optional option in the instruction format, which is only required to be referenced by other statements. in In case of no label, the instruction mnemonic must hold one or more Spaces before writing the instruction mnemonic. The instruction mnemonic cannot occupy the location of the label, otherwise the mnemonic will be compiled The program is mismanaged by the label. Written symbols, the provisions of the first character must be a letter or half Angle underline -, behind it you can talk with