10-4
BajaPPC-750: Monitor
c$
Change text from the cursor to the end of the line.
d
Delete. Use additional commands with
d
to delete words or
groups of words, as shown below.
dw or dW
Delete a word after the cursor (capital W ignores punctuation).
de or dE
Delete to the end of a word (capital E ignores punctuation).
db or dB
Delete the word before the cursor (capital B ignores punctuation).
d$
Delete text from the cursor to the end of the line.
10.1.4 PowerPC Debugger
The PowerPC debugger allows the operator to probe memory-mapped devices. It
features simple commands that execute without requiring a stack or memory.
The debugger starts automatically if the internal diagnostics discover an error.
Also, the operator may force the debugger to start by pressing the ‘d’ key before
resetting the board. The debugger may be called from the monitor command line
by using the
Debugger
command (although the
q
command is not functional in
this case).
The following commands are available in the debugger:
?
Display a list of available commands.
r
[b l] address
Read a byte
[b]
or 32-bit long word
[l]
from an
address
.
w
[b l] address data
Write a byte
[b]
or 32-bit long word
[l]
to an
address
.
d
address
Display a 256-byte block of data beginning at
address
. After
this command, additional blocks may be displayed by press-
ing return.
f
data address size
Fill a block of
size
bytes with the byte
data
starting at
address
.
t
start end
Perform a memory test from the
start
address to the
end
address. This is a rotating bit test on the block of memory. It
writes 0x00000001 to the first 32-bit data value, 0x00000002
to the second, 0x00000004 to the third, and so on, until all
addresses are written. It then reads the block of memory to
verify that the data was written correctly. Next, it writes a sec-
ond pattern starting with data values 0x00000002,
0x00000004, etc. and verifies the data in the same way. In all,
the test writes 32 patterns to the block of memory. If errors
are detected, only the first 18 are displayed. The pattern test
repeats with a rotating zero this time, rather than a one. And
Содержание BajaPPC-750
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