[ARCHIVE/2003] Marcel II: 2D platform game

• 2D platform GAME ENGINE written in PURE ASSEMBLY,
• ARCHIVAL code created mainly between December 2002 and January 2003,
• gameplay video is available on youtube,
• legacy 16-bit code for DOS,
• 7528 bytes of code,
• a lot of NAIVE CODE - don't repeat it,
• example showing that just write something in assembly DOES NOT MAKE IT FAST,
• released as PUBLIC DOMAIN - use for any purpose.

Main features:

• MPU-401 driver for music,
• player for standard MIDI files using CLOCK INTERRUPT (IRQ8) for time synchronization,
• SB16 driver in DMA mode for sound,
• track KEYBOARD STATE in buffer updated when keyboard interrupt (IRQ9) arrived,
• LEVEL EDITOR written in C,
• macroassembler-like PREPROCESSOR written in qbasic.