On 31/3/23 05:39, Bernd Oppolzer wrote:
What code does the compiler generate when a long scalar such as
_Decimal128 is
passed by value?
The C compiler - at least - puts the long scalar in the reg1 list
where it uses more than 4 bytes.
"call by value" in my understanding means, that values are passed, not
addressed.
With the mainframe (or z/OS and CMS) linkage convention, this means,
that values
and not addresses are in the reg1 parameter list.
Maybe that's the case for legacy C programs but it certainly isn't for
XPLINK which uses a completely different linkage convention. As the
majority of our code is 64-bit XPLINK is mandatory.
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