HW1 answers

HW1 answers - srl $t0, $t0, 31 # isolate sign for answer...

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CSE/EEE 230 HW1 Answers 1. 3 points each 1. C1980000 a. 3247964160 b. -1047003136 c. -19 2. 40E06666 a. 1088448102 b. 1088448102 c. 7.0125 3. C0000000 a. 3221225472 b. -1073741824 c. -2.0 2. 3 point each a. 45454550514800 b. FFFFFF19 c. 40080000 d. 37D1B717 e. 00000000 f. C4606000 3. 10 points Subu $t3, $t5, $t7 Slt $t2, $t5, $t7 Add $t2, $t6, $t2 Sub $t2, $t4, $t2 4. 15 points srl $t0, $s0, 31 # isolate sign srl $t1, $s1, 31 # isolate sign beq $t0, $0, else # if => 0, go to next bne $t2, $0, else # if < 0, go to next ori $t0, $0, 1 # first was less j end # finished else: beq $t1, $t2, else2 # if signs match go to next and $t0, $0, $0 # second was less j end # finished else2: sub $t0, $s0, $s1 # subtract to find difference
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Unformatted text preview: srl $t0, $t0, 31 # isolate sign for answer end: 5. 30 points-7 = 11111001 10 = 00001010 a. Addition 11111001 00001010 00000011 b. Subtraction 11111001 00001010 11101111 c. 1010 11111001 00000000 0101 11110010 00000000 0010 11100100 11110010 0001 11001000 10111010 0000 10010000 10111010 d. 0000 10100000 00000111 0000 01010000 00000111 0000 00101000 00000111 0000 00010100 00000111 0000 00001010 00000111 0000 00000101 00000111 Answer is 0 r -7 Remember dividend = quotient * divisor + remainder-7 = 0 * 10 + -7 Note that division is done with 7 as a positive number....
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This note was uploaded on 04/03/2008 for the course CSE 230 taught by Professor Calliss during the Spring '08 term at ASU.

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HW1 answers - srl $t0, $t0, 31 # isolate sign for answer...

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