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Re: [avr-gcc-list] ijmp usage

From: Marek Michalkiewicz
Subject: Re: [avr-gcc-list] ijmp usage
Date: Fri, 20 Dec 2002 21:15:56 +0100 (CET)

> Beware that my method will be broken if you want to IJMP into the upper
> 64K of a mega128.
> There should be a way for the compiler/assembler to deal with this, but I
> haven't discovered it yet. ;-)

There is - use pm_lo8(foo) and pm_hi8(foo) which return the low and
high byte of the word address of FOO (right shifted by 1).

        ldi r30,pm_lo8(foo)
        ldi r31,pm_hi8(foo)

Hope this helps,

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