I'm sure I'm not the only one to have encountered code where R0, R1, etc were not equated to the values they imply. Not often, but then once is more than enough!

Ray

On 4/30/2020 04:59, Jonathan Scott wrote (in part):
I do not think it needs explaining
when used any more than it should be necessary to explain any
other common convention, for example that R1 is a name with
value 1 conventionally used to refer to general register 1.

Jonathan Scott, HLASM
IBM Hursley, UK

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