.SH SYNOPSIS
.nf
.B #include <sys/vm86.h>
-.PP
+.P
.BI "int vm86old(struct vm86_struct *" info );
.BI "int vm86(unsigned long " fn ", struct vm86plus_struct *" v86 );
.fi
.I struct vm86_struct
was changed
in 1.1.8 and 1.1.9.
-.PP
+.P
These calls cause the process to enter VM86 mode (virtual-8086 in Intel
literature), and are used by
.BR dosemu .
-.PP
+.P
VM86 mode is an emulation of real mode within a protected mode task.
.SH RETURN VALUE
On success, zero is returned.