HP 10314D User Manual page 31

Noted
HP 103140
To point to the first byte of a code fetch and to indicate the size of the
opcode, do the following:
1. Identify a line on the display that you know contains the first byte
of an instruction fetch.
2. Roll
this
line to the top of the listing.
The cursor location is not the top of the listing. In figure 2-5, line 1 is
the top of the listing.
3. Select the "Invasm" field at the top of the display. A pop-up
will
appear with the following choices:
Size 16 Byte 0
Size 16 Byte 1
Size 16 Byte 2
Size 16 Byte 3
Size 32 Byte 0
Size 32 Byte 1
Size 32 Byte 2
Size 32 Byte 3
4. Select the field in this pop-up that describes which byte of the
captured state contains the first byte of the code fetch and what
kind of object code is being executed by the microprocessor (Size
16 or 32 for Intel's 16- or 32-bit microprocessor families).
The listing
will
inverse assemble from the top line down. Any data
before
this
screen is left unchanged. Rolling the screen up
will
inverse
assemble the lines as they appear on the bottom of the screen.
If
you
jump to another area of the screen by entering a new line number, you
must re-synchronize the inverse assembler by repeating the above steps.
Each time you inverse assemble a block of memory, the analyzer
will
keep that block in the inverse assembled condition. You can inverse
assemble several different blocks in the analyzer memory, but the
activity between those blocks
will
not be inverse assembled.
80386DX Preprocessor Interface
Analyzing the Intel 80386DX
2-9