Int 31/AX=FF01h

AX = FF01h
BL = interrupt number
ES:(E)DI -> real-mode register list (see #03148 at AX=0300h)

Return:
Register list updated

Note: CauseWay fills in the values for SS, SP, and FLAGS itself, and ignores the values specified for CS and IP

See Also: AX=0300h - AX=FF02h