re: Re: A89: the a68k assembler and how it makes machine code

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re: Re: A89: the a68k assembler and how it makes machine code


where do you get this manual?  (thanks for the info dude!)


> ** Original Subject: Re: A89: the a68k assembler and how it makes machine code
> ** Original Sender: Olle Hedman <oh@hem.passagen.se>
> ** Original Date: Tue, 09 Nov 1999 05:53:47 +0100

> ** Original Message follows... 

>
> more like the latter.
> 
> If you look in your manual you can get free from motorola, you can find exactly
> what codes all the instructions have. The assembler has a table like this
> (sortof) and find the word "rts" , looks in his big table and sees that rts is
> equal to $4E75, and then put $4E75 in that position in the resulting binary.
> 
> //Olle
> 
> mxpxfifws@yahoo.com wrote:
> > 
> > I don't really get that.  Where does it come up with the $4E75?  Is it an algorythm or 
does it
> > have all the code in the program and it just pulls it out of its butt?  Thanks for responding!
> > 
> > > ** Original Subject: Re: A89: the a68k assembler and how it makes machine code
> > > ** Original Sender: Andrew Magness <AndrewM@ev1.net>
> > > ** Original Date: Mon, 08 Nov 1999 22:43:07 -0800
> > 
> > > ** Original Message follows...
> > 
> > >
> > > It knows the hex equate of the code you assemble...
> > >
> > > I.E.
> > >
> > > the compiler knows that
> > >
> > > RTS = $4E75
> > >
> > > so whenever the compiler comes to an rts in the code it replaces $4E75 for
> > > rts.
> > > and so on until all the code is assembled...
> > >
> > > get it?
> > >
> > >
> > >
> > > At 10:38 PM 11/8/99 -0600, you wrote:
> > > >
> > > >Ok, I'm not very new at assembly language (been programming for a year
> > > now), but I still
> > > >don't understand how an assembler works.  How does it change all the code
> > > you put in to
> > > >machine code.  In fact, how does it calculate all the hex code?  If
> > > someone could explain all
> > > >this or just give me a website to visit, I would be greatly appreciative.
> > > Thanks!
> > > >Bryan
> > > >
> > > >
> > > >
> > > >Download NeoPlanet at http://www.neoplanet.com
> > > >
> > > >
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> > > >
> > > >
> > >
> > 
> > >** --------- End Original Message ----------- **
> > 
> > >
> > 
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>** --------- End Original Message ----------- **

> 



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