On Tuesday, 13 January 2015 at 00:05:31 UTC, Walter Bright wrote:
On 1/12/2015 3:17 PM, deadalnix wrote:
On Monday, 12 January 2015 at 22:17:57 UTC, Walter Bright
wrote:
Yes, it does. Returning an int in EAX now becomes returning a
pair [EAX,EDX].
It is not that big of a deal, EDX is a trash register anyway
if memory serve,
but then, it become very bad when it do not fit in register
anymore.
Returning a slice, for example, already consumes EAX and EDX.
Adding an error code pushes that into returning via a pointer
to a stack temporary.
Also, there's the code needed to load the value into EDX in the
first place.
It adds up.
Quoting myself:
it become very bad when it do not fit in register anymore.
So we agree :)
