发明名称 |
Loading page register with page value in branch instruction for as fast access to memory extension as in-page access |
摘要 |
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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申请公布号 |
US5974498(A) |
申请公布日期 |
1999.10.26 |
申请号 |
US19960719040 |
申请日期 |
1996.09.24 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
HOPKINS, HARLAND GLENN |
分类号 |
G06F9/30;G06F9/32;(IPC1-7):G06F9/32 |
主分类号 |
G06F9/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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