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Re: [avr-gcc-list] Re: Patch Fix PR35013, PR27192


From: Dave N6NZ
Subject: Re: [avr-gcc-list] Re: Patch Fix PR35013, PR27192
Date: Tue, 15 Apr 2008 21:22:07 -0700
User-agent: Thunderbird 1.5 (X11/20051201)


Andy H wrote:
<snip>
To fix is not simple. The following are ideas only - please add some more
<snip>

2) We could avoid using gs() and get function address as byte address + byte offset. This would require extra run-time code for function pointer calls (to divide by two). It is useful in that same pointers could be used to read bytes from program memory.
Doesn't this halve the reach of code pointers? So won't it break some code that presently works on 128K AVR's?

-dave




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