Miracle: Sega Master System emulator

Miracle is a Javascript Sega Master System emulator that runs totally inside your browser.
Use the cursor keys and Z/Y and X to control the emulator. P is the pause button, R resets.
There's a built-in debugger; hit Backspace to bring it up.
000011 22 33 44 55LD A,(HL)
AF: 0000
BC: 0000
DE: 0000
HL: 0000
IX: 0000
IY: 0000

SP: 0000
PC: 0000

Open ROM file:

Or select a game:



a Sega Master System emulator in Javascript

By Matt Godbolt

Based on JSSpeccy by Matt Westcott

..which in turn is based on Fuse by Philip Kendall et al. Icons from Nuvola by David Vignoni.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.