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Atari coding BBS
| Re: jmp on the 030 |
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Posted by: mikro
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Apr,03.2014-08:36
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>So if I place the rout_table directly after the jmp-instruction, what will that do to the i-cache? I remember something about 16 byte cache blocks or so.
What is your concern? Basically, on plain Falcon030 it will do "nothing" to the cache as the burst mode is disabled, so the i-cache is filled by 4-byte blocks, not by 16-byte lines.
On CT2 though, yes, if the jump table isn't aligned on the next cache line boundary, it will pollute the i-cache easily.
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