A complete game with sound- and animation effects written in assembly (MASD syntax) on and for the HP49 calculator / saturn processor.

(The source is in TYII.A, which is the only file required. Images within the repository are used for illustating this readme)

You can assemble the game by activating the builtin development library:

256 ATTACH

Then put TYII.A on the stack and press

→PRG

to build. It will replace itself with the binary you can play. Store that object like any other stack item. Retrieve like any other object to play.

This is a logic game, consisting of many levels. Levels can be bigger than the actual screen. The levels consist of a field with different types of stones placed onto it:

• regular stones showing a symbol
• moving stones showing an arrow
• wall stones
• rotation stones: make the moving stones change their direction

There are regular stones, and special stones that can move. Moving stones will stop on any other stone (or the border) in their way. They show their moving direction as an arrow.

Rotation stones will defer the way a moving stone moves. When a moving stone hits a rotation stone, it's direction changes.

Often, moving stones are blocked by regular stones on start. Once you make regular stones disappear, they (the moving stones) start moving and can complicate / change the logic you had in your mind ;)

Select any 3 same stones located in the shape of a rectangular triangle to make them disappear (like in the shape of the L within the logo you can see below).

When all regular AND moving stones have disappeared, the level is solved.

Only wall stones and rotation stones can be left.

• every dissolved triangle gives 5 points
• every completed level gives 100 points
• a bonus points countdown starts from 100 points and decreases every few seconds
• the faster you complete the level, the more points

Start Screen, Level 1-2

Level 3

Level 4-6

Level 7-8