int int86( int intr_num, union REGS *inregs, union REGS *outregs )
- prototype in dos.h - executes 8086 software interrupt specified by intr_num - copies register values from inregs into the registers - if CF is set, an error has occurred - preserves SP register so calls to INT 25 and INT 26 via this function don't require a stack adjustment - unique to DOS - see int86x() intdos() intdosx() intr() REGS