cidoca/alis

SEGA Master System emulator (SMS)

Alis (SEGA Master System emulator)

This is a port to SDL from a very old graduation conclusion project mine. The original version was written for Visual Studio and DirectX in 2002.

Alis is a SEGA Master System(SMS) emulator with a core engine written in 100% x86 assembly code, only the UI is written in C. All the assembly code was converted from MASM to NASM format and DirectX to SDL API.

The name "Alis" is a tribute to the main character from my favorite game, Phantasy Star.

Features

You can enjoy these features while playing:

• Save/Load - Save and load game state any time;
• Record/Play - Record and play user input from keyboard or joystick;
• CPU speed - Change CPU speed between 12% and 800%;
• Rewind - Back to past!!! You can rewind your game until the last thirty seconds;

Keys

There are support for keyboard and joysticks.

• F5-F8 - Save game in slots between 1 and 4;
• F9-F12 - Load game from slots between 1 and 4;
• SHIFT+[F5-F8] - Record user input in slots between 1 and 4;
• SHIFT+[F9-F12] - Play user input from slots between 1 and 4;
• MINUS(-) - Decreases CPU speed;
• EQUALS(=) - Increases CPU speed;
• BACKSPACE - Rewind game played;
• ESCAPE - Reset;
• SPACE - Pause;
• Z - Joystick 1 button 1;
• X - Joystick 1 button 2;
• UP,DOWN,LEFT,RIGHT - Joystick 1 directions;
• N - Joystick 2 button 1;
• M - Joystick 2 button 2;
• KEYPAD 1,2,3,5 - Joystick 2 directions;