Language Differences

All of the assembly language statements supported by release 6 of the IBM High Level Assembler are compatibly supported by the Tachyon 390 Cross Assembler and Tachyon z/Assembler, except for the following:


The ACONTROL COMPAT(CASE) and COMPAT(SYSLIST) options are not supported.


The MHELP instruction is accepted, but not all of the options produce exactly the same output as those supported by the IBM assemblers.


The statement following a REPRO instruction is not assigned its own statement number, but is instead treated as a continuation of the REPRO statement.

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Last modified on September 14, 2008