公开(公告)号：DE69022752D1

公开(公告)日：1995-11-09

申请号：DE69022752

申请日：1990-02-12

Applicant: IBM

Inventor： LUMELSKY LEON ,  PEEVERS ALAN WESLEY

IPC: G06F3/16 ,  G06F3/048 ,  G06F3/14 ,  G09G5/00 ,  G09G5/12 ,  G09G5/397 ,  G09G5/399 ,  G09G1/16

公开(公告)号：DE69108442T2

公开(公告)日：1995-10-05

申请号：DE69108442

申请日：1991-04-15

Applicant: IBM

Inventor： LARKY STEVEN PHILIP ,  PEEVERS ALAN WESLEY ,  ST CLAIR JOE CHRISTOPHER

IPC: H04N1/407 ,  G06T5/00 ,  G09G5/14 ,  G09G5/39 ,  G09G5/393 ,  G09G1/16

公开(公告)号：ES2060684T3

公开(公告)日：1994-12-01

申请号：ES89106573

申请日：1989-04-13

Applicant: IBM

Inventor： GUPTA SATISH ,  LARKY STEVEN PHILIP ,  PEEVERS ALAN WESLEY ,  ST CLAIR JOE CHRISTOPHER

IPC: G09G1/02 ,  G06F3/153 ,  G06F12/08 ,  G06F12/10 ,  G09G5/00 ,  G09G5/14 ,  G09G5/36 ,  G09G5/39 ,  G09G1/16 ,  G09G1/00

Abstract: A display control means such as a virtual display adapter (110) allows the advanced functions of a display controller to be utilized in a large area of memory in addition to the normal use in display memory (120). This large area of memory includes system memory (130), and efficient access to this large area of memory is permitted for normal system use. The display controller also functions with non-contiguous and non-resident bitmaps. The flexibility of demand-paged virtual memory is utilized for display tasks, as display bitmaps may be written to the large area of memory as well as the display memory.