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Class Information
Number: 712/247
Name: Electrical computers and digital processing systems: processing architectures and instruction processing (e.g., processors) > Processing control > Processing sequence control (i.e., microsequencing) > Multilevel microcontroller (e.g., dual-level control store)
Description: Subject matter including means or steps for sequencing microinstruction processing utilizing a multilevel (e.g., dual level) microcode (i.e., a first level microcode addresses and controls a retrieval of a second or subsequent level microcode.).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7376811 |
Method and apparatus for performing computations and operations on data using data steering |
May. 20, 2008 |
| 7254689 |
Decompression of block-sorted data |
Aug. 7, 2007 |
| 7103758 |
Microcontroller performing safe recovery from standby mode |
Sep. 5, 2006 |
| 7069419 |
Field programmable gate array and microcontroller system-on-a-chip |
Jun. 27, 2006 |
| 6957326 |
Methods and apparatuses for executing threads |
Oct. 18, 2005 |
| 6948005 |
Peripheral device for programmable controller |
Sep. 20, 2005 |
| 6850993 |
Peripheral device for programmable controller |
Feb. 1, 2005 |
| 6825843 |
Method and apparatus for loop and branch instructions in a programmable graphics pipeline |
Nov. 30, 2004 |
| 6745316 |
Data processing system |
Jun. 1, 2004 |
| 6715065 |
Micro program control method and apparatus thereof having branch instructions |
Mar. 30, 2004 |
| 6560698 |
Register change summary resource |
May. 6, 2003 |
| 6496926 |
Computer-implemented paramaterless language with exception handler |
Dec. 17, 2002 |
| 6466828 |
Device controller with intracontroller communication capability, conveying system using such controllers for controlling conveying sections and methods related thereto |
Oct. 15, 2002 |
| 6438680 |
Microprocessor |
Aug. 20, 2002 |
| 6341328 |
Method and apparatus for using multiple co-dependent DMA controllers to provide a single set of read and write commands |
Jan. 22, 2002 |
| 6308254 |
Processing instructions of an instruction set architecture by executing hierarchically organized snippets of atomic units of primitive operations |
Oct. 23, 2001 |
| 6263429 |
Dynamic microcode for embedded processors |
Jul. 17, 2001 |
| 6230264 |
Parameterless language in a machine for implementation thereof |
May. 8, 2001 |
| 6112296 |
Floating point stack manipulation using a register map and speculative top of stack values |
Aug. 29, 2000 |
| 6105125 |
High speed, scalable microcode based instruction decoder for processors using split microROM access, dynamic generic microinstructions, and microcode with predecoded instruction information |
Aug. 15, 2000 |
| 6067616 |
Branch prediction device with two levels of branch prediction cache |
May. 23, 2000 |
| 6058467 |
Standard cell, 4-cycle, 8-bit microcontroller |
May. 2, 2000 |
| 6035394 |
System for providing high performance speculative processing of complex load/store instructions by generating primitive instructions in the load/store unit and sequencer in parallel |
Mar. 7, 2000 |
| 6026489 |
Signal processor capable of executing microprograms with different step sizes |
Feb. 15, 2000 |
| 6018798 |
Floating point unit using a central window for storing instructions capable of executing multiple instructions in a single clock cycle |
Jan. 25, 2000 |
| 6016539 |
Datapath control logic for processors having instruction set architectures implemented with hierarchically organized primitive operations |
Jan. 18, 2000 |
| 5987602 |
Parameterless language in a machine for implementation thereof |
Nov. 16, 1999 |
| 5887151 |
Method and apparatus for performing a modified prefetch which sends a list identifying a plurality of data blocks |
Mar. 23, 1999 |
| 5634119 |
Computer processing unit employing a separate millicode branch history table |
May. 27, 1997 |
| 5530889 |
Hierarchical structure processor having at least one sub-sequencer for executing basic instructions of a macro instruction |
Jun. 25, 1996 |
| 5394558 |
Data processor having an execution unit controlled by an instruction decoder and a microprogram ROM |
Feb. 28, 1995 |
| 5241637 |
Data processor microsequencer having multiple microaddress sources and next microaddress source selection |
Aug. 31, 1993 |
| 5235686 |
Computer system having mixed macrocode and microcode |
Aug. 10, 1993 |
| 5101344 |
Data processor having split level control store |
Mar. 31, 1992 |
| 5034879 |
Programmable data path width in a programmable unit having plural levels of subinstruction sets |
Jul. 23, 1991 |
| 4975837 |
Programmable unit having plural levels of subinstruction sets where a portion of the lower level is embedded in the code stream of the upper level of the subinstruction sets |
Dec. 4, 1990 |
| 4928223 |
Floating point microprocessor with directable two level microinstructions |
May. 22, 1990 |
| 4901225 |
Processing apparatus with hierarchical structure for implementing a machine instruction |
Feb. 13, 1990 |
| 4901235 |
Data processing system having unique multilevel microcode architecture |
Feb. 13, 1990 |
| 4812970 |
Microprogram control system |
Mar. 14, 1989 |
| 4714991 |
Microprogram control apparatus having variable mapping between microinstruction control bits and generated control signals |
Dec. 22, 1987 |
| 4550369 |
Apparatus and method for processing macroinstructions and microinstructions |
Oct. 29, 1985 |
| 4484260 |
Stored-program control machine |
Nov. 20, 1984 |
| 4467415 |
High-speed microprogram control apparatus with decreased control storage requirements |
Aug. 21, 1984 |
| 4360869 |
Control store organization for a data processing system |
Nov. 23, 1982 |
| 4325121 |
Two-level control store for microprogrammed data processor |
Apr. 13, 1982 |
| 4307445 |
Microprogrammed control apparatus having a two-level control store for data processor |
Dec. 22, 1981 |
| 4251862 |
Control store organization in a microprogrammed data processing system |
Feb. 17, 1981 |
| 4159519 |
Template family interfacing structure for providing a sequence of microinstructions to a pipelined microprogrammable data processing system |
Jun. 26, 1979 |
| 4032895 |
Electronic data processing computer |
Jun. 28, 1977 |
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