Learning Zig + CPUs more good

A simple x86 dissasembler + 8086 simulator in Zig

Goal:
Learn more about Zig so I can compare it to Odin
Learn more about Assembly and how CPUs work in general in the process

Tools

• Zig 0.13 (https://ziglang.org/download/)
• NASM (converting .asm to binary)(https://www.nasm.us/pub/nasm/releasebuilds/2.16.03/macosx/)

Resources

• 8086 user manual - https://edge.edx.org/c4x/BITSPilani/EEE231/asset/8086_family_Users_Manual_1_.pdf (page 164 is instruction table)

Aknowledgements

I am building this as I am following along with the course by C. Muratori at https://www.computerenhance.com

TODO

Opcode patterns in 8086 arithmetic (https://www.computerenhance.com/p/opcode-patterns-in-8086-arithmetic)

• Check the byte/word stuff with immediate to register/memory on MOV. ADD/SUB behave different -[x] add -[x] subtract -[ ] compare -[ ] jump not zero