Instruction of the Day: LA

You’ll need to master this instruction if you want to be an expert assembler programmer.  LA can be used to create an address (think pointer if you’re a C programmer) and place it in a register for further processing, or used to address other items in memory directly.  It is often used to load multiple base registers for larger programs.  Here’s the video that discusses it.

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Filed under IBM Mainframe Assembler

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