| 摘要 |
Calling a linear access window at a predetermined fixed address allows accessing of a data block in an on-chip memory of a microprocessor. Hardware concatenation of a page number held in a start address register with an indicated offset produces the needed complete address without the need of an adder. In the process, the hardware checks that the indicated address falls within a predetermined address space. If the address exceeds the predetermined address space, during concatenation the hardware substitutes the lowest page number in the predetermined address space for the current page number in the start address register, effectively wrapping the address space without the need for software checking and intervention.
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