README.md

SIC/XE ASSEMBLER

What is SIC/XE Machhine

• SIC Machine's extended Edition
• you can read article at SIC/XE on wikipedia

Function

• Control Section
• Addressing Mode (Flag bit)
  • Direct Addressing Mode
  • Indirect Addressing Mode
  • Simple Addressing Mode
  • Immediate Addressing Mode
  • Relative Addressing Mode
    • 1. Program Counter (PC Register)
    • 2. Base (Base Register)
• Extended Instruction (4 bit Instruction)

How it works :

Using two passes ...

• Pass one
  • Assign addresses to all statements in source code
  • Save values (addresses) assigned to labels for use in pass two
  • Process directives
• Pass two
  • Translate instructions
  • Convert labels to addresses
  • Generate values defined by BYTE and WORD
  • Process the directives not done in pass one
  • Write object code to output file

Compiling and running the program

For Windows

GCC compiler

gcc SicXEpass1.c -o SicXEpass1.exe
gcc SicXEpass2.c -o SicXEpass2.exe

For Linux/Mac

GCC compiler

gcc SicXEpass1.c -o SicXEpass1.o
gcc SicXEpass2.c -o SicXEpass2.o

Run Precompiled Binaries

For Windows

CMD

SicXEpass1.exe
SicXEpass2.exe

Powershell

&'.\SicXEpass1.exe'
&'.\SicXEpass2.exe'

For Linux/Mac

./SicXEpass1.o
./SicXEpass2.o