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Atari coding BBS
030 dcache pre-fetch |
Posted by: earx
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Apr,20.2005-14:15
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i was wondering if anyone knows how much cycles the instruction:
move.w (a0),dn
will stall when there's a data cache miss on 68030? i reckon the 030 tries to pre-fetch a complete long into dcache, so 2 words are read from the st ram, while it should only be 1? does this mean there is a 4 cycle stall?
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