mirror of
https://github.com/shadlyd15/NesUEFI
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137 lines
4.8 KiB
Markdown
137 lines
4.8 KiB
Markdown
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# NesUEFI - A bootable NES Emulator running on UEFI
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**NesUEFI** is a **NES Emulator running without an operating system** directly on **Unified Extensible Firmware Interface (UEFI).** Simply place **NesUEFI** and nes roms in a pendrive and play. **NesUEFI file browser** will show the available roms. The core drivers (Graphics, File System, Keyboard, Timer) are written in c using **GNU-EFI** and the emulator part is a port of [LiteNES](https://github.com/NJU-ProjectN/LiteNES). Adafruit GFX Graphics Library is ported for GNU-EFI ecosystem in C for high level graphics operations and text rendering.
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# Compile NesUEFI
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## Requirements
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- **GNU-EFI** Library. Download it from [here](https://sourceforge.net/projects/gnu-efi/).
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- **gcc-3.0 or newer**
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- A version of **objcopy** that supports EFI applications
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- **qemu** (To run without real hardware)
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- **mtools** : Utilities to access MS-DOS disks from Linux (to run on qemu)
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- **OVMF** (To run on qemu)
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## Compile and install GNU-EFI Library
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Go to gnu-efi source folder
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```bash
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make
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make install
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```
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Here is a guide you can follow for more details on how to compile and install gnu-efi applications.
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## Compile NesUEFI
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Change the following macros in makefile to locate GNU-EFI **libraries** and **headers** installed on the previous step.
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```makefile
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INCDIR = /usr/local/include
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LIBDIR = /usr/local/lib
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EFILIB = /usr/local/lib
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```
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# NesUEFI on qemu :
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### Locate OVMF in Makefile:
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To run the compiled application in qemu we need OVMF for UEFI emulation. OVMF is a port of Intel's tianocore firmware to the qemu virtual machine.
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```makefile
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OVMF_DIR = ../OVMF
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```
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Change **OVMF_DIR** directory in the makefile.
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### Create Image
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Add your roms here in the makefile to write it to your image. For example : test_1.nes, test_2.nes
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```makefile
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mcopy -i $(IMAGE).img splash.bmp ::
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# Add your roms here
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mcopy -i $(IMAGE).img test_1.nes ::
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mcopy -i $(IMAGE).img test_2.nes ::
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```
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```bash
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make img
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```
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### Run
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```bash
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make run
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```
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# NesUEFI on real hardware
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**Do at your own risk. Under no circumstances shall the author be liable for any damage.**
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Technically NesUEFI should not mess with your system. But you should at least know what you are doing.
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- Format a pendrive with **FAT32** file system.
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- Create **/efi/boot/** folders in the pendrive
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- Rename **main.efi** to **bootx64.efi** for **64 bit** and **bootia32.efi** for **32 bit** application.
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- Copy **bootx64.efi** or **bootia32.efi** to boot folder.
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- For **64 bit** application the pendrive should look like this : **/efi/boot/bootx64.efi**
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- For **32 bit** application the pendrive should look like this : **/efi/boot/bootia32.efi**
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- Simply place your roms in the pendrive. **NesUEFI file browser** will show the available roms.
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# Demo on Real Hardware
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## Controls
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| NesUEFI Key | Keyboard Key |
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| ----------- | ----------- |
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| Up | W |
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| Down | S |
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| Left | A |
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| Right | D |
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| Select | U |
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| Start | I |
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| A | K |
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| B | J |
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| Reload | R |
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## Known Issues
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- Mappers are not implemented yet.
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- It does not support Audio emulation yet.
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- EFI only have a simple text input protocol. So it only recognizes input character but not keystroke. So key press and release events are emulated by holding down a key until a new key is pressed. Otherwise we can not emulate multi key press events.
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- Only single player is supported.
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## Tested Games
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Below games are currently tested on real hardware. But NesUEFI is not only limited to these games. It should technically run all the classic roms that use mapper 0. [Here](https://nesdir.github.io/mapper0.html) is a list of mapper 0 games.
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- [x] Super Mario Bros
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- [x] Popeye
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- [x] Yie Ar Kung-Fu
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- [x] Battle City
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- [x] Super Arabian
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- [x] Road Fighters
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- [x] 1942
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- [x] F1 Race
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## TODO
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- [x] Graphics
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- [x] Timer
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- [x] Keyboard
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- [x] File System
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- [x] File Browser
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- [x] Graphics Library
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- [ ] APU
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- [ ] Mappers
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- [ ] USB Keyboard Driver
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## Acknowledgements
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- https://wiki.osdev.org
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- https://wiki.osdev.org/Tutorials
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- https://wiki.osdev.org/UEFI
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- https://wiki.osdev.org/GNU-EFI
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- https://wiki.osdev.org/UEFI_App_Bare_Bones
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- https://wiki.osdev.org/Loading_files_under_UEFI
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- https://github.com/NJU-ProjectN/LiteNES
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- https://learn.adafruit.com/adafruit-gfx-graphics-library
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- https://edk2-devel.narkive.com/WhxSiG6I/edk2-directory-file-system-traversal-example
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- https://www.youtube.com/watch?v=mpPbKEeWIHU&list=PLxN4E629pPnJxCQCLy7E0SQY_zuumOVyZ
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- https://blog.fpmurphy.com/2015/08/display-bmp-details-and-image-in-uefi-shell.html#ixzz7SHLiufWS
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- https://unsplash.com/photos/UqRnUzV5pjQ
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- https://www.qmtpro.com/~nes
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## Screenshots
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# License
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Licensed under the [MIT](https://github.com/shadlyd15/NesUEFI/blob/master/LICENSE) License.
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