HP 64783A, User Manual

Page: 61 / 816

Step 14: See the setup of the MMU
•
Choose Display
→
MMU Translations
•
Or, using the command line, enter the following command:
display mmu_translations
The above commands let you see the present setup of the MMU. The MMU was
set up by the demo program when you first started it.
Logical Address Physical Address Attributes
000000000..000007fff 000000000..000007fff@a S W
000008000..00000ffff 000008000..00000ffff@a W
000010000..000017fff 0ffff0000..0ffff7fff@a W
000018000..00001bfff 0ffff8000..0ffffbfff@a
00001c000..00001ffff 0ffffc000..0ffffffff@a S
0ff000000..0ffffffff 0ff000000..0ffffffff@a TT
Note that the first and second ranges of logical addresses are translated 1:1 to their
physical addresses. The third, fourth, and fifth ranges of logical addresses are
translated to different physical addresses. The last range of logical addresses is
translated 1:1 to its corresponding range of physical addresses.
The "TT" attribute beside the last range of physical addresses indicates that it is
transparently translated by one of the transparent translation registers. The
emulation monitor occupies the first part of the last address range.
The transparent translation registers were used to provide a 1:1 translation for the
monitor because they are much easier to use. The demo program could have
created an appropriate entry in the MMU tables to provide the required translation
for the emulation monitor.
Chapter 1: Getting Started
Step 14: See the setup of the MMU
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