| 摘要 |
The present invention relates to a macro instruction set computer (MISC) architecture, which comprises main memory for storing system softwares of the computer, instructions, and user programs; first memory means for storing preparatory data for operations, intermediate results of operations and the final results of completed operations, and operating in stack form; second memory means for storing the break point address of subprograms and address for recovery of the break, point while returning from a call, and operating in stack form;a CPU comprises: address management means for the main memory means, for forming the address for accessing the main memory means; main memory means data port for receiving instructions and data from main memory means and writing data in the CPU into main memory means; control logic combinational decoding means for decoding instructions from main memory means and generating control signals controlling the operations of the computer; ALU means for performing arithmetic and logic operation functions; data path focus means; square rooting means operative to perform hardware square rooting operation directly; top of stack, next to the top of stack and the third one to the top of stack register means of the first memory means; top of stack register and instruction repeating execution control means of the second memory means; management means for the first memory means for performing operations of writing to and reading from the first memory means in response to micro-operation control signals generated by instruction decoding; management means for the second memory means for performing operations of writing to and reading from the second memory means in response to micro-operation control signals generated by instruction decoding; system clock signal and time control signal generating means; interrupt handling means; parallel data I/O port; and serial-parallel data converting I/O port. Micro-processors manufactured in accordance with the architecture employ the FORTH language as machine assembly language. Based on the unique self-extensibility of the FORTH language per se, the FORTH machine assembly language of the architecture of the present invention has more powerful capabilities over the prior art. <IMAGE> |
