Real time DRC assistance for manual layout editing

A computer readable storage medium having stored thereon in a non-transitory manner a plurality of software code portions for editing a region of an integrated circuit layout having a plurality of objects, wherein the software code portions, when executed by a processor, perform the steps of:

• moving a selected set of editing objects to a first updated starting position in the layout in response to a command indicating movement of the selected set of editing objects to a destination position in the layout;
• pre-calculating, in conjunction with the movement of the editing objects and prior to receiving any subsequent command indicating further movement of the editing objects, a first bound indicating a distance by which the editing objects can be moved from the first updated starting position in a first direction in the layout before violating design rules of a data set;
• and
• storing the first bound and displaying the editing objects in the first updated starting position in the layout.

A system for editing a region of an integrated circuit layout having a plurality of objects, the system comprising:

• a memory;
• and
• a data processor coupled to the memory, the data processor configured to:
• move a selected set of editing objects to a first updated starting position in the layout in response to a command indicating movement of the selected set of editing objects to a destination position in the layout;
• pre-calculate, in conjunction with the movement of the editing objects and prior to receiving any subsequent command indicating further movement of the editing objects, a first bound indicating a distance by which the editing objects can be moved from the first updated starting position in a first direction in the layout before violating design rules of a data set;
• and
• store the first bound and displaying the editing objects in the first updated starting position in the layout.

A method for editing a region of an integrated circuit layout having a plurality of objects, the method comprising:

• calculating a first bound indicating a distance by which a selected set of editing objects can be moved from a first starting position in a first direction in the layout before violating design rules of a data set;
• in response to a first command indicating movement of the editing objects from the first starting position to a first destination position in the layout, the first destination position being beyond the first bound in the first direction, moving the editing objects to a first intermediate position at which the position of the editing objects in the first direction is no farther than the first bound;
• and
• displaying the editing objects in the first intermediate position in the layout.

A computer readable storage medium having stored thereon in a non-transitory manner a plurality of software code portions for editing a region of an integrated circuit layout having a plurality of objects, wherein the software code portions, when executed by a processor, perform the steps of:

• calculating a first bound indicating a distance by which a selected set of editing objects can be moved from a first starting position in a first direction in the layout before violating design rules of a data set;
• in response to a first command indicating movement of the editing objects from the first starting position to a first destination position in the layout, the first destination position being beyond the first bound in the first direction, moving the editing objects to a first intermediate position at which the position of the editing objects in the first direction is no farther than the first bound;
• and
• displaying the editing objects in the first intermediate position in the layout.

A system for editing a region of an integrated circuit layout having a plurality of objects, the system comprising:

• a memory;
• a data processor coupled to the memory, the data processor configured to:
• calculate a first bound indicating a distance by which a selected set of editing objects can be moved from a first starting position in a first direction in the layout before violating design rules of a data set;
• in response to a first command indicating movement of the editing objects from the first starting position to a first destination position in the layout, the first destination position being beyond the first bound in the first direction, move the editing objects to a first intermediate position at which the position of the editing objects in the first direction is no farther than the first bound;
• and
• display the editing objects in the first intermediate position in the layout.

A method for editing a region of an integrated circuit layout having a plurality of objects, the method comprising:

• pre-calculating, in response to selection of a selected set of editing objects and prior to receiving any subsequent command indicating movement of the editing objects, a first bound indicating a distance by which the editing objects can be moved from a first starting position in a first direction in the layout before violating design rules of a data set;
• moving the selected set of editing objects to a first updated position in the layout in response to a first command indicating movement of the selected set of editing objects;
• and
• storing the first bound and displaying the editing objects in the first updated position in the layout.

A computer readable storage medium having stored thereon in a non-transitory manner a plurality of software code portions for editing a region of an integrated circuit layout having a plurality of objects, wherein the software code portions, when executed by a processor, perform the steps of:

• pre-calculating, in response to selection of a selected set of editing objects and prior to receiving any subsequent command indicating movement of the editing objects, a first bound indicating a distance by which the editing objects can be moved from a first starting position in a first direction in the layout before violating design rules of a data set;
• moving the selected set of editing objects to a first updated position in the layout in response to a first command indicating movement of the selected set of editing objects;
• and
• storing the first bound and displaying the editing objects in the first updated position in the layout.

A system for editing a region of an integrated circuit layout having a plurality of objects, the system comprising:

• a memory;
• and
• a data processor coupled to the memory, the data processor configured to:
• pre-calculate, in response to selection of a selected set of editing objects and prior to receiving any subsequent command indicating movement of the editing objects, a first bound indicating a distance by which the editing objects can be moved from a first starting position in a first direction in the layout before violating design rules of a data set;
• move the selected set of editing objects to a first updated position in the layout in response to a first command indicating movement of the selected set of editing objects;
• store the first bound and displaying the editing objects in the first updated position in the layout.

A method for editing a region of an integrated circuit layout having a plurality of objects, the method comprising:

• in response to a first command which selects a selected set of editing objects, and in dependence upon a type of the first command, calculating a speed ratio for each edge of each of the editing objects, the speed ratio for each particular one of the edges indicating a distance by which the particular edge is to move per unit of cursor movement distance indicated by a subsequent command indicating movement of the editing objects;
• in dependence upon the speed ratios, calculating a first bound indicating a distance by which the cursor can be moved from a first starting position in a first direction in the layout before any of the edges of the editing objects will violate design rules of a data set;
• in dependence upon the speed ratios, moving the selected set of editing objects to a first updated position in the layout in response to a command moving a cursor to indicate movement of the editing objects to a first destination position;
• and
• displaying the editing objects in the first updated position in the layout.

A computer readable storage medium having stored thereon in a non-transitory manner a plurality of software code portions for editing a region of an integrated circuit layout having a plurality of objects, wherein the software code portions, when executed by a processor, perform the steps of:

• in response to a first command which selects a selected set of editing objects, and in dependence upon a type of the first command, calculating a speed ratio for each edge of each of the editing objects, the speed ratio for each particular one of the edges indicating a distance by which the particular edge is to move per unit of cursor movement distance indicated by a subsequent command indicating movement of the editing objects;
• in dependence upon the speed ratios, calculating a first bound indicating a distance by which the cursor can be moved from a first starting position in a first direction in the layout before any of the edges of the editing objects will violate design rules of a data set;
• in dependence upon the speed ratios, moving the selected set of editing objects to a first updated position in the layout in response to a command moving a cursor to indicate movement of the editing objects to a first destination position;
• and
• displaying the editing objects in the first updated position in the layout.

A system for editing a region of an integrated circuit layout having a plurality of objects, the system comprising:

• a memory;
• and
• a data processor coupled to the memory, the data processor configured to:
• in response to a first command which selects a selected set of editing objects, and in dependence upon a type of the first command, calculate a speed ratio for each edge of each of the editing objects, the speed ratio for each particular one of the edges indicating a distance by which the particular edge is to move per unit of cursor movement distance indicated by a subsequent command indicating movement of the editing objects;
• in dependence upon the speed ratios, calculate a first bound indicating a distance by which the cursor can be moved from a first starting position in a first direction in the layout before any of the edges of the editing objects will violate design rules of a data set;
• in dependence upon the speed ratios, move the selected set of editing objects to a first updated position in the layout in response to a command moving a cursor to indicate movement of the editing objects to a first destination position;
• and
• display the editing objects in the first updated position in the layout.