IBM Assembler Question:
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What is the use of TRT instruction and how it is working?

IBM Assembler Interview Question
IBM Assembler Interview Question

Answer:

for example we want to test if given variable is numeric we can do it by following code.

We can define a table with all FF execpt from 0 t0 9 00

Table1 DC 256c'ff'
org table1
dc 10c'00'

Now we can give
TRT var1,table1
BZ numeric

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