ocr: THE KEYBOARD The C128 keyboard is an advance over the standard C64 keyboard. In 64 mode, only the standard 66 keys are accessible. in128 mode, 24 extra keys are available. They are the separate CURSOR keys, the HELP key, addi- tional FUNCTION keys, an ALPHA-LOCK key, the 40/80 key and a NUMERIC KEYPAD. These addi- tional keys are strobed by the VIC chip or are tied to dedicated 8502 or MMU I/O lines. Keyboard operations are controlled by the 6526 I/O device at location U1. 13 19 15 20 21 22 23 INST # % DEL 3 5 7 9 1 HELP ESC ALT 12 RETURN W R V 8 CRSR A D G J CTRL 5 10 f8 e & CLR LINE f7 A 6 8 ...
