Motorola MVME166IG/D2 - Manual (Page 97)

Set Environment to Bug/Operating System
MVME166IG/D2 A-5
A
Network Autoboot Configuration Parameters Pointer
(NVRAM) 00000000 This is the address where the
network interface configuration
parameters are to be
saved/retained in NVRAM;
these parameters are the
necessary parameters to perform
an unattended network boot.
Memory Search Starting Address 00000000 Where the Bug begins to search
for a work page (a 64KB block of
memory) to use for vector table,
stack, and variables. This must
be a multiple of the debugger
work page, modulo $10000
(64KB). In a multi-166
environment, each MVME166
board could be set to start its
work page at a unique address
to allow multiple debuggers to
operate simultaneously.
Memory Search Ending Address 02000000 Top limit of the Bug’s search for
a work page. If a contiguous
block of memory, 64KB in size, is
not found in the range specified
by Memory Search Starting
Address and Memory Search
Ending Address parameters,
then the bug will place its work
page in the onboard static RAM
on the MVME166. Default
Memory Search Ending Address
is the calculated size of local
memory.
Memory Search Increment Size 00010000 This multi-CPU feature is used
to offset the location of the Bug
work page. This must be a
multiple of the debugger work
page, modulo $10000 (64KB).
Typically, Memory Search
Increment Size is the product of
CPU number and size of the Bug
work page. Example: first CPU
$0 (0 x $10000), second CPU
$10000 (1 x $10000), etc.
Table A-1. ENV Command Parameters (Continued)
ENV Parameter and Options Default Meaning of Default