Re: [cc65] sizof zp registers

From: Ullrich von Bassewitz <uz1musoftware.de>
Date: 2011-07-19 19:10:43
Hi!

On Mon, Jul 18, 2011 at 04:50:39AM -0400, Greg King wrote:
> The "Usage" lines are wrong.  The callee always is responsible for
> preserving any _important_ data in the locations that it borrows.

I'm not sure from where you got this impression. It is wrong. There are places
where an implementation of a library routine doesn't save a zero page location
marked as "caller saved", but that's not a general rule but just an
optimization. For an assembler programmer, the information in the Wiki is
correct, even when calling C functions.

Regards


        Uz


-- 
Ullrich von Bassewitz                                  uz@musoftware.de
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Received on Tue Jul 19 19:10:59 2011

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