Category: DOS extenders
Flags: available only in protected mode
INT 21 - Phar Lap 386/DOS-Extender - SET INT TO ALWAYS GAIN CNTRL IN PR. MODE AX = 2506h CL = interrupt number DS:EDX = CS:EIP of protected-mode interrupt handler Return: CF clear Notes: this function modifies both the real-mode low-memory interrupt vector table and the protected-mode Interrupt Descriptor Table (IDT) interrupts occurring in real mode are resignaled in protected mode this function is also supported by FlashTek X-32VM