A Gameboy emulator written in Rust

RustGameboy

. . Can use the terminal as an output device.

Usage

cargo run --release "PATH_TO_BIOS" "PATH_TO_ROM"

Working

System memory map

Core instruction set

Pixel-processing unit

Background rendering

Sprite rendering

Interrupts

Input

TODO

Sound

Memory Banking

Timing

The emulator will not run in Debug mode because Rust errors on unsigned integer arithmetic over/underflow. This can be alleviated using the Wrapping struct but requires explicit wrapping of every literal value. wrapping_add and wrapping_sub could be used on every instruction, but neither solution leads to readable code and I would prefer a solution that leaves the base logic understandable.

unresolved import `clap::Clap`

hey cool project. Currently it doesn't compile.

error[E0432]: unresolved import clap::Clap --> src/main.rs:24:25 | 24 | use clap::{AppSettings, Clap}; | ^^^^ no Clap in the root

error: cannot determine resolution for the derive macro Clap --> src/main.rs:28:10 | 28 | #[derive(Clap)] | ^^^^ | = note: import resolution is stuck, try simplifying macro imports

error: cannot find attribute clap in this scope --> src/main.rs:29:3 | 29 | #[clap(version = "1.0", author = "Blake Loring clap is in scope, but it is a crate, not an attribute

error: cannot find attribute clap in this scope --> src/main.rs:30:3 | 30 | #[clap(setting = AppSettings::ColoredHelp)] | ^^^^ | = note: clap is in scope, but it is a crate, not an attribute

error: cannot find attribute clap in this scope --> src/main.rs:33:5 | 33 | #[clap(short, long)] | ^^^^ | = note: clap is in scope, but it is a crate, not an attribute

error: cannot find attribute clap in this scope --> src/main.rs:35:5 | 35 | #[clap(short, long)] | ^^^^ | = note: clap is in scope, but it is a crate, not an attribute

error: cannot find attribute clap in this scope --> src/main.rs:37:5 | 37 | #[clap(short, long)] | ^^^^ | = note: clap is in scope, but it is a crate, not an attribute

error: cannot find attribute clap in this scope --> src/main.rs:39:5 | 39 | #[clap(long)] | ^^^^ | = note: clap is in scope, but it is a crate, not an attribute

error: cannot find attribute clap in this scope --> src/main.rs:41:5 | 41 | #[clap(long)] | ^^^^ | = note: clap is in scope, but it is a crate, not an attribute

error: cannot find attribute clap in this scope --> src/main.rs:43:5 | 43 | #[clap(short, long)] | ^^^^ | = note: clap is in scope, but it is a crate, not an attribute

error: cannot find attribute clap in this scope --> src/main.rs:45:5 | 45 | #[clap(short, long)] | ^^^^ | = note: clap is in scope, but it is a crate, not an attribute

error: cannot find attribute clap in this scope --> src/main.rs:47:5 | 47 | #[clap(long, default_value = "4")] | ^^^^ | = note: clap is in scope, but it is a crate, not an attribute

warning: unused import: AppSettings --> src/main.rs:24:12 | 24 | use clap::{AppSettings, Clap}; | ^^^^^^^^^^^ | = note: #[warn(unused_imports)] on by default

error[E0599]: no function or associated item named parse found for struct Opts in the current scope --> src/main.rs:53:26 | 31 | struct Opts { | ----------- function or associated item parse not found for this ... 53 | let opts: Opts = Opts::parse(); | ^^^^^ function or associated item not found in Opts | = help: items from traits can only be used if the trait is implemented and in scope = note: the following trait defines an item parse, perhaps you need to implement it: candidate #1: Parser

warning: unused import: Write --> src/terminal.rs:12:29 | 12 | use std::io::{self, stdout, Write}; | ^^^^^

Some errors have detailed explanations: E0432, E0599. For more information about an error, try rustc --explain E0432. warning: gb_int (bin "gb_int") generated 2 warnings error: failed to compile gb_int v0.1.0 (https://github.com/jawline/Mimic.git#9c1ff27d), intermediate artifacts can be found at /tmp/cargo-installzK8Jhy

Caused by: could not compile gb_int due to 13 previous errors; 2 warnings emitted

If it makes any difference i am installing by:

cargo install --git https://github.com/jawline/Mimic.git