OPCODE Keyword

The OPCODE parameter is an optional keyword parameter.

        OPCODE=0xnn,

where:

nn

is the expected one byte hex opcode to be found at the tracepoint address and TRCUST verifies the value with that in the module. The opcode of the instruction being traced must be the same as this value or an error message is issued and the tracepoint is rejected. This may be used to verify the opcode expected at the address specified by the TP parameter. This may be useful when using TP = @filename,linenum to ensure the requested instruction is traced.

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