This repository contains source code for an example implementation of a SIC/XE assembler and simulator in Go.
SICer is in the process of a complete rewrite since I originally wrote it as a university course project as a way to learn Go, so it's probably full of bugs and bad design choices. The original code is available in the old branch.
- Registers
- Memory
- I/O devices
- All addressing modes
- Integer, floating point and bitwise arithmetic
- Jumps
- Load and store
- Define all available instructions
- Object code parser
- All 4 (5) instruction sets
- Timer for running instructions in sequence
- Automatic running (start, stop and step modes)
- System instructions
- Multi-processor architecture (concurrency)
- Dissassembler
- See memory contents during execution
- See register values during execution
- Detect halt
- Adjustable execution speed ("processor speed")
- Keyboard input
- Breakpoints and watches
- Interrupts
- Basic CLI interface
- Terminal UI using Bubble Tea
- GUI using gotk4
- Undo feature in step-by-step debugger (able to undo up to n operations)
- Graphical output (Virtual screen) - GUI mode only
- Parser for assembly code
- Symbol resolver
- Object code generator
- Compiler directives (START, END, ORG, EQU)
- Compiler base directives (BASE, NOBASE)
- LTORG compiler directive
- Full relocation support
- Control sections
- Macros
- Print intermediate code (LST) with comments
- Various compilter optimizations
- Calculate constants during assembly
- Remove dead code
- Link multiple object files into one
- Multiple control sections
- Adjustable linker settings
- Inspecting and reodering control sections/symbols
- Remove or keep symbols in the output file
- Install prerequisites
- Build the project
- Automatically:
make - Manually:
go build -v github.com/sic-xe/sicer
- Automatically:
- Run the program
- Run
./sicer - To get additional info run
./sicer -h
- Run
The project is licensed under the GNU GPLv3 license.