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Atari coding BBS
| Re: PC addressing mode |
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Posted by: ggn
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Apr,15.2013-22:35
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bxx instructions are PC-relative by definition (if you take a look at the generated opcodes it'll be clear).
Anyway, a cheap-but-not-so-elegant solution for the other two instructions is:
lea clip_RRR_05(pc),a6
move.w d0,(a6)
subq.w #1,(a6)
yep, wastes a register but at least it works :).
(another nastier solution would be to do the relocation yourself after copying the code someplace else, but that depends on how small you want to make your code or how many cycles you want to save).
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[All messages in this thread] [Start new thread]
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Topic
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Posted by
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Date
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PC addressing mode
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Sallafranque/Thadoss
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Apr,15.2013-21:42
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Re: PC addressing mode
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ggn
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Apr,15.2013-22:35
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Re: PC addressing mode
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Sallafranque/Thadoss
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Apr,15.2013-22:46
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Re: PC addressing mode
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ggn
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Apr,15.2013-23:10
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Re: PC addressing mode
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Sallafranque/Thadoss
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Apr,15.2013-23:36
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Re: PC addressing mode
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Sallafranque/Thadoss
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Apr,15.2013-23:07
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Re: PC addressing mode
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mikro
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Apr,16.2013-02:47
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Re: PC addressing mode
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Defjam
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Apr,17.2013-17:43
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Re: PC addressing mode
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Sallafranque/Thadoss
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Apr,19.2013-00:21
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Re: PC addressing mode
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Mr. Styckx
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Apr,19.2013-14:27
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Re: PC addressing mode
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Defjam
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Apr,19.2013-18:35
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Re: PC addressing mode
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dml
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May,29.2013-00:25
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Re: PC addressing mode
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evil
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May,29.2013-14:54
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Re: PC addressing mode
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Cyprian
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Jun,01.2013-16:17
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Re: PC addressing mode
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evil
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Jun,01.2013-20:00
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What's the anti-troll code?
That's your personal code to be able to add comments and messages on the dhs.nu site.
Don't have a code or forgot it? Fix it here.
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