MADS alignment issue

[rensoup]

 

I'm using the .align directive which works fine usually but not in this particular case:

 

As you can see the directive is at A28C and the string "does not align" should be at A300 like it says in the generated listing file.

 

However looking at it in the debugger, that's not the case: the directive just gets ignored.

 

I've even tried ORG which doesn't work either (works fine too usually)

 

using 2.0.8 b31 (switches in the pic)

[phaeron]

Normally, a change in ORG would cause the assembler to end the current segment and start a new one so the loader changes to a new address. You have DOS headers turned off (OPT H-), though, so it can't do this and just writes the segments back-to-back. If you want the assembler to insert bytes to fill the difference in addresses, you need to enable fill (OPT F+).

 

[rensoup]

1 hour ago, phaeron said:

Normally, a change in ORG would cause the assembler to end the current segment and start a new one so the loader changes to a new address. You have DOS headers turned off (OPT H-), though, so it can't do this and just writes the segments back-to-back. If you want the assembler to insert bytes to fill the difference in addresses, you need to enable fill (OPT F+).

 

 

Ah Thanks, I actually did .align $100,$ff and that did the same thing. OPT F+ is the better solution because I'm sure I've got a few other .align scattered.

 

(the listing is still inaccurate though)

Edited July 24, 2019 by rensoup

[Wrathchild]

Just checked some listings and looks like you'd use the address, not that you would like to align to the next page, e.g.
 

    opt h -
NO_QUOTE = 1
    
    org $4000
    icl 'charset40.s'
    icl 'mem4400.s'
    icl 'GameOver.s'

    .align $5000,0
    icl 'charset50.s'
    icl 'logos.s'

A alternative way to align to a page:

:(((*+$FF)&$FF00)-*)    dta 0

 

Edited July 24, 2019 by Wrathchild

[rensoup]

5 hours ago, Wrathchild said:

    .align $5000,0   

 icl 'charset50.s'   

 icl 'logos.s'

?

 

That doesn't seem right?  that would make .align really painful to use...

 

Thanks for the alternative!