quiz1sol

0 notethatdobodywhilecondisnotthesameaswhilecondbody

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Unformatted text preview: $0, Loop Here the same variable names are used in c code as that of corresponding registers in assembler v0 = 0; do { v0 = v0 + a0 & 1; a0 = a0 >> 1; } while (a0!=0); Note that “do{body} while(cond)” is not the same as “while(cond){body}”! (b) (5 points) Briefly explain in English what the code does Counts the number of 1’s in register $a0, i.e. “population count” (c) (5 points) Assuming 32‐bit MIPS architecture what is the maximum and the minimum number of instructions (i.e. dynamic count) which can be executed by this code? Minimum is when value of register $a0 is 0, i.e. 1 + 4*1 = 5 Maximum is when value of the mos...
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This note was uploaded on 07/08/2013 for the course ECE 154A taught by Professor Strukov during the Fall '12 term at UCSB.

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