HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens

                INT 15,89 - Switch Processor to Protected Mode

       AH = 89h
       BH = IRQ8 interrupt vector offset
       BL = IRQ0 interrupt vector offset
       CX = offset into protected mode CS to jump
       ES:SI = pointer to Global Descriptor Table (GDT)

       on return:
       CF = 0 if successful
          = 1 if error

       - switches 286 and 386 machines into protected mode to take
         advantage of advanced feature and extended memory
       - Global descriptor table must be setup before interrupt
       - normal BIOS functions are not available after the switch

Esc or Alt-X to exit int 15,89 Home/PgUp/PgDn/End ←↑↓→
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