Re: Assembler Macros

Sven Pran wrote:
> "SkippyPB"
> ..................
>> As a way of clarification, the Macro I listed was one I used on a
>> 360/370 system and just happened to be still residing in my "toolbox".
>> Under 360/370 Assembler, the TIME macro places the address of the
>> current date in register 1.  Which means the MVC instruction would
>> work as I described.
> 
> To clarify further:
> 
> The TIME macro has since been extended with a huge amount of
> optional parameters.
> 
> Unless I am very much mistaken you get exactly the same result
> today as you got 40 years ago by just coding TIME without any
> arguments. (Anything else would be contrary to IBM policy which
> has always been very strict on source compatibility across
> releases).
> 
> The alternative presentation modes come when you add arguments
> in your macro call.

In OS/360, as of 1966, TIME with no operand was equivalent to TIME DEC, 
and returned 00yyddds (it is not clear whether s was F or C) as the 
/content/ of R1.
-- 
John W. Kennedy
"...when you're trying to build a house of cards, the last thing you 
should do is blow hard and wave your hands like a madman."
   --  Rupert Goodwins