ChessTASM

University project (2nd bachelor): Chess game in Assembly language (TASM)

Report included.

Run the program

In DosBox, simply run the CHESS command to start the game.

Features

• FIDE allowed movement restriction
  • Castling (not compliant with FIDE rules, also allowed after initial Rook move)
  • En passant
• Scenario loading
• Game saving
• Timers (default. 10 min) with turn indicator
  • Can be increased with 5min periods
• Pawn promotion (promotable to Queen, Bishop, Knight, Rook)

Auxiliary files

In the auxiliary/folder, some useful scripts can be found.

• Script bitmap_generator/stringtobitmap.c with executable stb
  • Use this to convert a raw string of ones and zeroes into a bitmap. Chess piece images are bitonal (1-bit encoded), where a 0 pixel means transparent and a 1 pixels an unspecified colour (this allows for multiple colour variants of the same shape). Note that the bitmaps only contain the sequential bits of the image; no size information is stored!
• Script font_generator/generate_ascii_bitmap.c with executable gen_font
  • In order to generate a font that can be used by the program, we need a bitmap that contains the entire font. Starting with a folder containing a bitmap of all the wanted ASCII-characters, this script converts all those bitmaps into 1 font bitmap. When $S$ is the size (in bytes) of a single-character bitmap and $C$ the value of a decimal ASCII-value. A bitmap with the name C.bin will then be encoded into the large bitmap starting at position $S*C$.

Not yet implemented (and probably never will be)

• Checkmate detection (explicitly killing the King is necessary to win)
• Colour palette picker