Here is a list of controls for Microds/Brderbund's Prince of Persia.

cursor left/right - run
SHIFT - attack/get object
SHIFT+cursor left/right - move carefully
cursor up - grab platform
cursor down - crouch
cursor left/right+up - jump
cursor left/right+down - crawl

You can also use the joystick.

Other controls are:

ESC - pause
CTRL+R - quit game
CTRL+A - restart at beginning of current level
CTRL+S - turn sound on/off
CTRL+G - save game at beginning of current level
CTRL+L - load game (only works during title sequence)
SPACE - show time remaining

The high scores are saved to the disc.