Freescale-semiconductor Microcontrollers Uživatelský manuál Strana 830

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Debugger Engine Commands
Debugger Commands
830
Microcontrollers Debugger Manual
Example:
DEFINE test = 1
...
UNDEF test
When the test variable is no longer needed in a command program, it can be
undefined and removed from the list of symbols. After UNDEF test, the test
variable can no longer be used without (re)defining it.
NOTE See also examples of the DEFINE command.
Examples:
The value of an existing symbol can be changed by applying the DEFINE
command again. In this case, the previous value is replaced and lost. It is not put on
a stack. Then when UNDEF is applied to the symbol, it no longer exists, even if the
value of the symbol has been replaced several times:
in>DEFINE apple 0
in>LS
apple 0x0 (0) // apple is equal to 0
in>DEFINE apple = apple + 1
in>LS
apple 0x1 (1) // apple is equal to 1
in>DEFINE apple = apple + 1
in>LS
apple 0x2 (2) // apple is equal to 2
in>UNDEF apple
in>LS
// apple no longer exists
In the next example, we assume that the FIBO.ABS sample is loaded. At the
beginning, no user symbol is defined:
in>UNDEF *
in>LS
User Symbols: // there is no user symbol
Application Symbols: // symbols of the loaded
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