HiSMS is a little bit different Sega Master System emulator.
The original Master System screen image is composed by 8x8 pixels, 16 colors sub-images called tiles.
The goal of this emulator is to replace these tiles by 32x32 pixels, 32 bits colors (alpha) images, resulting in a screen resolution of 1024x768 pixels.HiSMS uses Direct3D 7. Its recommendable 256MB of RAM, a X86 MMX processor and a 32MB 3D video card to play