Get Virtual Interrupt State

Call With

AX = 0902H

Returns

Carry flag = clear (this function always succeeds)
AL = 0 if virtual interrupts are disabled
AL = 1 if virtual interrupts are enabled

Notes

• This function should be used in preference to the PUSHF instruction to examine the interrupt flag, because the PUSHF instruction returns the physical interrupt flag rather than the virtualized (per-client) interrupt flag. On some DPMI hosts, the physical interrupt flag will always be enabled, even when hardware interrupts are not being passed through to the client.