US 6,983,439 B1
Unified placer infrastructure
James L. Saunders, Mountain View, Calif. (US); Krishnan Anandh, San Jose, Calif. (US); Guenter Stenz, Campbell, Calif. (US); Sudip K. Nag, San Jose, Calif. (US); and Jason H. Anderson, Toronto (Canada)
Assigned to Xilinx, Inc., San Jose, Calif. (US)
Filed on Oct. 29, 2002, as Appl. No. 10/283,638.
Claims priority of provisional application 60/403550, filed on Aug. 13, 2002.
Int. Cl. G06F 9/45 (2006.01)
U.S. Cl. 716—9 8 Claims
OG exemplary drawing
 
1. A method for placement of objects representing circuits, comprising:
generating a universal grid;
generating placer-movable objects;
generating packed grids responsive to the placer-movable objects;
placing the placer-movable objects in the universal grid and the packed grids;
obtaining a first set of constraints in a domain of the universal grid; and
translating the first set of constraints to a second set of constraints in a domain of the packed grids.