intel8080

An emulator for the Intel 8080 microprocessor written in C++.

I have run this on multiple test suites; it passes some but not all of them completely. I'm unsure why despite hours of debugging. Feel free to contribute!

The header file intel8080.hpp is fairly well-documented. You should be able to figure out how to run the emulator from there (let me know if not). Of note:

• You can change and get the value of registers: cpu.A(), cpu.B(), cpu.C(), etc. as well as cpu.PC, cpu.SP.
• intel8080::cpu::step() executes the next instruction. If there is an interrupt waiting it runs that instead of the next instruction in memory.
• intel8080::cpu::interrupt() interrupts the CPU, but it does not actually run the interrupt vector; for that you must run step() afterwards.
• intel8080::cpu::getHalted() tells you whether the CPU is halted. This is important to check for; if you keep running step() while this returns true, it will simply do nothing.

It is your job to combine these and the other given functions in a way that will allow the CPU to run as you wish, either step-by-step or continuously (a loop is handy).

I may make improvements on this and provide code examples in the future. Again, feel free to contribute and thanks for reading.