Download Reference Manual

STEP - Step Through DSP Program
Example 13-37. SAVE Command
save p:0..$ff x:0..$20 session1
Save all three memory maps to OMF file "session1.lod" of the current
default target DSP address. Prompt for required action if file already exists.
save s lunchbrk
Save the default ADS state to filename "lunchbrk.adm". Prompt for required
action if file already exists.
save dv1 s lunchbrk.e1 -o
Save the target DSP address 1 state to filename "lunchbrk.e1". Overwrite the
current file lunchbrk.e1 if it exists.
13.39 STEP - Step Through DSP Program
STEP [dev_list] [count] [LI(source lines)/IN(instructions)]
The STEP command allows the user to execute count instructions or C source lines before
displaying the enabled registers and memory blocks. This command gives the user a quick
way to specify execution of a number of instructions without having to set a breakpoint. It
is similar to the TRACE command except that display occurs only after the count number
of cycles or instructions have occurred.
Note that the address of the first instruction that is to be executed is in the OnCE Program
Address Bus Decode Register (OPABD). If the Program Counter is changed before a
TRACE or STEP command is issued, the address of the Program Counter Register points
to the instruction to be executed.
CAUTION
DSP5616x: When single stepping through a BRKcc instruction and the condition is true, the
instruction immediately following the BRKcc instruction will be displayed by the ADS but will not
be executed. Instead, the DSP will correctly execute the instruction at LA + 1. Single-stepping
Tcc, REPcc or REP instructions with initial loop counter equal to zero may cause incorrect DSP
operation.
The main difference between the TRACE and STEP commands is the OnCE port trace
counter is armed to trace one instruction in the Trace mode. The STEP command arms the
trace counter with the count instructions to be executed in real time before re-entering the
Debug mode of operation and displaying the enabled registers and memory.
13-46
Suite56 ADS Debugger User’s Manual
Motorola