Fix units used in page table address calculation

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2908 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2010-09-01 21:28:14 +00:00
parent cd9c48384b
commit 51c9dcb290

View File

@ -361,10 +361,17 @@ On-Demand Paging
...
The locked region is initially unmapped. But the data region and page table
regions must be mapped in a similar manner.
regions must be mapped in a similar manner. Those
data offset = ((0x00094000 >> 10) << 2) = 0x00000940
L1 offset = ((0x0009c000 >> 10) << 2) = 0x000009c0
Data:
Virtual address = 0x11094000 Offset = 0x00064000
Physical address = 0x1104c000
L2 offset = ((0x00094000 >> 10) << 2) = 0x00000940
Page table:
Virtual address = 0x1109c000 Offset = 0x0009c000
Physical address = 0x11054000
L2 offset = ((0x0009c000 >> 10) << 2) = 0x000009c0
Build Sequence:
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