nam85: An 8-bit computer based on the Intel 8085 ISA

This computer was based on the Intel 8085 ISA. Currently it can support most of the 8085 instructions.

You can compile an 8085 program using an 8085 assembler and run it on this computer. Load up a program to program.bin, then simulate the computer using the gtkwave file.

Simulation

Documentation

Check out doc.md to about how the computer works and how each instructions were implemented

Toolchain

• Apio
• GTKWave
• Icarus Verilog
• Intel 8085 assembler

References

• Intel 8080/8085 opcode table - octal version
• Intel 8080 assembly programming manual
• Intel 8080 opcode table
• Inside the Intel 8085 Register File
• Reverse-engineering the 8085's ALU and its hidden registers
• The 8085's register file reverse engineered