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Labeled USING domains HLASM General Information GC26-4943-06 |
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You can specify the same base register or registers in any number of labeled USING instructions. However, unlike ordinary USING instructions, as long as all the labeled USINGs have unique labels, the assembler considers the domains of all the labeled USINGs to be active and their labels can be used as qualifiers. With ordinary USINGs, when you specify the same base register in a subsequent USING instruction, the domain of the prior USING is ended. The domain of a labeled USING instruction continues until the end
of a source module, except when:
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Copyright IBM Corporation 1990, 2014
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