SIC/XE Machine

Description

This is a series of projects for the System Programmig course in the Department of Computer Science and Engineering at Sogang University, Seoul, South Korea.

The result is an implementation of SIC/XE Machine with features such as shell environment, assembler and linking loader.

Specification

• Allocated virtual memory: 1 MB

Features

• [ OK ] Shell environment
• [ OK ] Assembler (pass1, pass2)
• [ OK ] Modification record (Relocation)
• [ OK ] Linking loader (pass1, pass2)
• [ OK ] Basic execution

Allowed Commands

• h[elp] : show list and format of commands.
• d[ir] : show list of entries in current directory.
• q[uit] : exit system.
• hi[story] : show list of valid commands entered during current session.
• du[mp] [start, end] : print content of virtual memory.
• e[dit] address, value : change value at designated memory address.
• f[ill] start, end, value : batch fill an interval in address with a value.
• reset : set whole memory to 0x00.
• opcode mnemonic : lookup for the code of the opcode mnemonic.
• opcodelist : show opcode list stored in hash table.
• assemble filename : assemble specified source file to create list file and object file.
• type filename : print the content of a file on screen.
• symbol : show the symbol table of the latest successfully assembled file.
• progaddr address : set program's starting address
• loader object_filename [object_filename] : perfrom linking loader process of object files
• run : execute program from starting address
• bp [address / "clear"] : show, set or clear break points

About the Developer

Inho Kim,

Undergraduate student of Dept. of Computer Science and Engineering,

Sogang University,

Seoul, South Korea