Electrical computers and digital processing systems: memory – Addressing combined with specific memory configuration or... – Addressing extended or expanded memory
Patent
1996-09-24
1999-10-26
Kim, Kenneth S.
Electrical computers and digital processing systems: memory
Addressing combined with specific memory configuration or...
Addressing extended or expanded memory
G06F 932
Patent
active
059744987
ABSTRACT:
An improved microcomputer has a page register connected to a program counter in order to extend the program address range of the microcomputer. A page stack is connected to the pager register and operates in conjunction with an address stack. The page register is loaded from bits in the first word of a two word branch or call instruction in such a manner that no additional execution time is required nor are any additional instructions required to provide the extended address range. A predefined microprocessor ASIC cell is augmented by externally connecting a page register and an opcode decoder so that instruction memory address range can be expanded by paging without redesigning the microprocessor cell.
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Donaldson Richard L.
Kim Kenneth S.
Laws Gerald E.
Marshall, Jr. Robert D.
Texas Instruments Incorporated
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