Hotkey Sequences

Certain key sequences are processed directly by the code that emulates a hardware keyboard controller (outside of Int 09h). These sequences are provided for display control:

• [ON][+] Increase display contrast.
• [ON][-] Decrease display contrast.
• [ON][*] Shading Technique.
• [ON][/] Invert Color.
• [ON][=] Annunciator Control (3 states: Left, Right, Disabled).
• [MENU] [Arrows] Window movement.
• [ZOOM] Cycle Zoom State (Text video modes only).