Dosit.How to handle interrupts with an ISaGRAF DOS target

Product : ISaGRAF V3

Date : 5-March-1996

File : Dosit.How to handle interrupts with an ISaGRAF DOS target.htm

Subject : How to handle interrupts with an ISaGRAF DOS target?

Keywords: Interrupt - DOS target - BIOS

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There is no particular constraint in developping interrupt routines

running with the MS-DOS ISaGRAF Kernel ISA.exe. The ISaGRAF kernel

just uses IRQ3 interrupt for serial communications. It does not use

the BIOS timer interrupt. You just have to take common precautions

in your interrupt code. Remember that DOS and BIOS interrupts are

generally not re-entrant.

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