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   dsptl New Member

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   How can you multiply the content of register %o0 by 15 without calling .mul or ading %o0 to itself 15 times in Assembly?

    

   dsptl, Jul 1, 2009

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   xpi0t0s Mentor

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   Shift it left 4 times (equivalent to multiplying by 16) and subtract the original value.
   
   0x0012 << 4 = 0x0120
   0x0120-0x0012=0x010e=0x0012*0x000f

    

   Last edited: Jul 2, 2009

   xpi0t0s, Jul 2, 2009

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