Inverse Assemblers For The Logic Analyzer; The State Trace Specification; Figure 4-16 . State Listing With Disassembled Data List - HP 1630A Operating And Programming Manual

Model 1630A/D/G
State Measurements
INVERSE ASSEMBLERS FOR THE LOGIC ANALYZER
Inverse assemblers display the data from the target system on the logic analyzer screen in mnemonics similar
to those of the microprocessor in the target system . Figure 4-16 is a state listing after the data from the system
used for examples in this manual has been disassembled with the 8085 Inverse Assembler.
State Listing --__--________________________________ __________ .
Label> RDDR 8085 Mnemonic
Base >
D
TIME+0600 ..
6 memory . . read .
4 memory read
D
TIME+000D
6 memory read
4 memory read
D
TIME+0001)
6 memory read
4 memory read
D
TIME+0001)
6 memory read
4 memory read
opfch 0.0.'a
opfch 2.000 -.
ps
memrd
2_000 Ps
memrd 1 . 400 'ps
opfch 1 .520
ps
opfch 2 .000 us
memrd 2 .000 Ws
memrd 1 .460 us
opfch
1 .520 ps
opfch 22 .000 us
memrd 2 .000 us
memrd 1 .480 has
opfch 1 .520 pe
opfch 2 .000 ms
memrd 2.000 ps
memrd 1 .480 ps
Figure 4-16 . State Listing With Disassembled Data List
The inverse assembler file automatically sets up the State [Assignment] Format Specification and, in some
inverse assemblers, the State [User Base] Format Specification .
When an inverse assembler has been loaded into internal storage, it is automatically reloaded upon power-up
of the analyzer . The message "Inverse assembler loaded" will be displayed on the System [Configuration]
Specification menu at power-up . Refer to Appendix D for information about loading and storing inverse
assemblers .
Inverse assemblers are available, for many of the widely-used microprocessors, on minicassette or floppy
disc . Refer to the appropriate appendix included in this manual for information on using an HP 82161A Digital
Cassette Drive or an HP 9121 D/S Flexible Disc Drive with the 1630A/D/G.
Most of the inverse assemblers available for use with the 1630A/D/G come in versions for HP 10269A/B
Interface Module and for direct connection with individual probe connections . Refer to the operating note
supplied with each inverse assembler for instructions about connections to the logic analyzer .
THE STATE TRACE SPECIFICATION
The Trace Specification determines where the logic analyzer starts a trace and what kind of information is
collected in the trace . The logic analyzer can take [Single] or [Continuous] traces, [Compare] lists before
storing a data, or perform [Overview] performance analysis measurements .
1 . Press TRACE. The default State Trace Specification menu is shown in figure 4-17 . In the default mode,
the analyzer will take a single trace starting at the first occurrence of any state of the target system . All
states thereafter will be stored until 1024 states are captured . The analyzer then automatically displays
the stored trace .
4- 1 5
+0000* TIME +0001) OCR
+0001* TIME - +000E
JNS
+0002 TIME +000F
+0003
TIME +0010
+0004* TIME +0000 OCR
+0005* TIME +000E JNFF
+0006 TIME +000F
® TIME +0010
+0008* TIME +0001) OCR
+0009* TIME +000E JN2
+0010 TIME +000F
+0011 TIME +0010
+0012* TIME
+0001) OCR
+0013* TIME +000E JNFF
+0014
TIME +000F
+0015
TIME +0010