.title Ovres .ident *X07* ;+ ; **-Ovres-Overlay run-time system work area symbols ; ; Version X07 ; ; Wayne E. Baisley April 16, 1982 ; ; This module defines various symbols for the overlay run-time work area. ; The work area is located in the $$OVDT psect and is structured as follows : ; ; +-------------------------------+ ; 0 | Overlay Load LUN | n.ovly ; +-------------------------------+ ; 2 | Address of First Segment Desc | n.stbl ; +-------------------------------+ ; 4 | Overlay Load | n.iost ; +--- I/O ---+ ; 6 | Status Block | ; +-------------------------------+ ; 10 | Overlay Load Error Subroutine | n.aler ; +-------------------------------+ ; 12 | Segment Descriptor Size | n.szsg ; +-------------------------------+ ; 14 | Load and Map Segment Routine | n.rdsg ; +-------------------------------+ ; 16 | Unmap Segment(s) Routine | n.mrks ; +-------------------------------+ ; 20 | Total Number Of Task Segments | n.segs ; +-------------------------------+ ; 22 | Top Address Of Segment Stack | n.root ; +-------------------------------+ ; 24 | Segment Stack Pointer | n.stpt ; +-------------------------------+ ;- .psect $$ovrs,abs n.ovly==.+0 n.stbl==.+2 n.iost==.+4 n.aler==.+10 n.szsg==.+12 n.rdsg==.+14 n.mrks==.+16 n.segs==.+20 n.root==.+22 n.stpt==.+24 .end