Acquiring and Viewing Disassembled Data
2–8
TMS 540 PowerPC 60X Microprocessor Support Instruction Manual
Table 2–4: Meaning of special characters in the display
Character or string displayed
Meaning
or m
The instruction was manually marked as a program fetch
****
Indicates there is insufficient data available for complete
disassembly of the instruction; the number of asterisks
indicates the width of the data that is unavailable. Each two
asterisks represent one byte.
-ā-ā-ā-ā-ā-ā-ā-
In the Address channel group, this indicates that the Data
group did not have information that could be disassembled
-ā-ā-ā-ā-ā-ā-ā-
In the HI_Data and LO_Data groups, this indicates that the
sequence does not contain valid data
-ā-ā-ā-ā-ā-ā-ā-
In the LO_Data group, indicates that the bus configuration is
32-Bits
-ā-
In the invalidate byte lanes, this indicates a Data Read or
Data Write transaction
-ā-ā-ā-ā-ā-ā-ā-
Indicates a flushed instruction when the microprocessor is
operating in 64-bit mode and only one of the instructions
fetched is executed
<Hex value>
In whole bytes that are not valid, indicates invalidated data;
the value for invalidated data is hexcadecimal
In Hardware display format, the disassembler displays certain cycle type labels in
parentheses.
If a single sequence has both an Address/Direct Store Access cycle and a Data
cycle, then a combination of cycle type labels described in Tables 2–5, 2–6, and
2–7 are displayed
.
For example, if Alternate Master Address and Alternate
Master Data are acquired in one sample, the disassembler would display the
cycle type label
( ALT ADDRS AND ALT DATA )
.
Table 2–5 shows cycle type labels for Address sequences, and gives a definition
of the cycle they represent.
Table 2–5: Cycle type labels for Address sequences and definitions
Cycle type label
Definition
( 60X_ADDRS )
Address cycle with selected PPC60X master
( 60X_ART_ADDRS )
Selected PPC60X Address retried
( ALT_ADDRS )
Alternate masters address
( INCOM_ADDRS )
Invalid selected PPC60X Address which is not associated with its
data
Hardware Display Format