Inventor
MACGREGOR DOUGLAS B
US22 patents
Patents
22 patentsUS4566063AJan 21, 1986
Data processor which can repeat the execution of instruction loops with minimal instruction fetches
MOTOROLA INC109 citations95
US4524415AJun 18, 1985
Virtual machine data processor
MOTOROLA INC100 citations95
US4750110AJun 7, 1988
Method and apparatus for executing an instruction contingent upon a condition present in another data processor
MOTOROLA INC35 citations92
US4731736AMar 15, 1988
Method and apparatus for coordinating execution of an instruction by a selected coprocessor
MOTOROLA INC25 citations92
US4729094AMar 1, 1988
Method and apparatus for coordinating execution of an instruction by a coprocessor
MOTOROLA INC39 citations92
US4715013ADec 22, 1987
Coprocessor instruction format
MOTOROLA INC44 citations92
US4493035AJan 8, 1985
Data processor version validation
MOTOROLA INC36 citations92
US4488228ADec 11, 1984
Virtual memory data processor
MOTOROLA INC29 citations92
US5021991AJun 4, 1991
Coprocessor instruction format
MOTOROLA INC21 citations81
US4729093AMar 1, 1988
Microcomputer which prioritizes instruction prefetch requests and data operand requests
MOTOROLA INC24 citations81
US4584666AApr 22, 1986
Method and apparatus for signed and unsigned bounds check
MOTOROLA INC22 citations78
US4649477AMar 10, 1987
Operand size mechanism for control simplification
MOTOROLA INC14 citations74
US4994961AFeb 19, 1991
Coprocessor instruction format
MOTOROLA INC9 citations73
US4914578AApr 3, 1990
Method and apparatus for interrupting a coprocessor
MOTOROLA INC16 citations73
US4887203ADec 12, 1989
Microcoded processor executing microroutines with a user specified starting microaddress
MOTOROLA INC13 citations73
US4763253AAug 9, 1988
Microcomputer with change of flow
MOTOROLA INC16 citations73
US4821231AApr 11, 1989
Method and apparatus for selectively evaluating an effective address for a coprocessor
MOTOROLA INC19 citations72
US4744049AMay 10, 1988
Microcode testing of a cache in a data processor
MOTOROLA INC8 citations71
US4698747AOct 6, 1987
Instruction address calculation unit for a microprocessor
MOTOROLA INC5 citations62
US4758978AJul 19, 1988
Method and apparatus for selectively evaluating an effective address for a coprocessor
MOTOROLA INC5 citations61
US4745574AMay 17, 1988
Microcode testing of PLA's in a data processor
MOTOROLA INC5 citations56
US4811274AMar 7, 1989
Method and apparatus for selectively evaluating an effective address for a coprocessor
MOTOROLA INC1 citations51