Embedded Assembler And Linker

With the rapid development of computer and electronic technology, there are more and more embedded systems emerging in various fields. To meet the requirement of industrial control field, one company which is well known in international IT field designed an 8-bit embedded RISC micro-processor: X101.Hardware cannot run without the aid of software, assembler and linker is the key member of the software development environment for embedded system, therefore, the task of this paper is to build an assembler and linker generation system for X101.This paper made an investigation on the construction of software development environment for embedded system and made a good research on the rationale of assembler and linker, the binary file format for is investigated too. After a brief introduction of the architecture of X101, the paper described in detail the design and implementation of X101 assembler and linker, which make of the critical links in embedded system's software development tools chain. The main jobs we take in the project are described emphatically, such as: the supporting of half byte instruction system and the optimization of code size while linking.At the end of this paper, a summary of research on all aspects are give, along with hope of possible refine of further research.