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Re: [avr-libc-dev] Can pgmspace.h __LPM_xxx__ macros become inline fn's?


From: Theodore A. Roth
Subject: Re: [avr-libc-dev] Can pgmspace.h __LPM_xxx__ macros become inline fn's?
Date: Thu, 30 Sep 2004 14:01:32 -0700 (PDT)

On Thu, 30 Sep 2004, Bill Somerville wrote:

> Is there any reason why the LPM macros in avr/pgmspace.h cannot be
> reimplemented as inline functions?
>
> E.g.:
>
> __inline__
> uint8_t
> __LPM_classic__( uint16_t addr )
> {
>    uint8_t result;
>    __asm__
>         (
>                "lpm" "\n\t"
>                "mov %0, r0" "\n\t"
>                : "=r" (result)
>                : "z" (addr)
>                : "r0"
>                );
>    return result;
> }
>
> This avoids warnings in C with -pedantic compiler switch, makes the code
> leagal in C++ (it is an error with -pedantic switch in C++).
>
> Bill Somerville

I forget to ask in my previous reply:

Bill, are you willing to generate a patch against latest cvs and submit
it to the list?

---
Ted Roth
PGP Key ID: 0x18F846E9
Jabber ID: address@hidden




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