Test 1 Solutions

Test 1 Solutions - EE3750 Test] Name @924" flag/g...

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Unformatted text preview: EE3750 Test] Name @924" flag/g #29” 6/26/03 Directions: This test contains 6 problems. You must work all of them. You have 60 minutes to complete this test. Do not spend excessive time on any one problem. Partial credit will be given for partial knowledge. Provide answers in indicated spaces where applicable. -— w > 13133750 Test] Name firzen Aaalfl’fim 6/26/03 Problem 1: Describe the actions performed by the CPU during the command MOV AX, [BP]? Do not forget to include the physical address generation and any modifications to registers or memory locations. (10 pts) My <- [fir/HEP] 5 2.. min! MMM’ {rm S‘Jotrfk 3g mm! “NW fifflfif MWM M 5,0 ’ "/4X flVCfW/J‘llt’fl MIX/Xi, Wflrfl' -—- MCI-wry unw/rngfig4 4/ Problem 2: Complete the following signed arithmetic operations and indicate the resultant state of the flags provided. (10 pts) 0100 1111 0010 1110 + @091 0101 0111 0010 CF 0 PF 0 m 1100 1101 1010 1110 + 1101 0101 0011 0110 IHOIOOOIOH'OOIOO EE3750 Testl Name (3425;, AMI/z! Zrcd 6/26/03 Problem 3: Provide the microcode for the following assembly operations: (10 pts) a) MOVBL,CL 5 pH . ,‘ IoomoMo Héml‘om 111ng;ny 01w MM [31,. (L (/14); f. 2/1”” 5 ‘ b) MOVAX, [D|+20h] . r (70379 IGOOIO/I/l OI/OOO/IOI 0010 (90003 d W 44M AX [DI] all}; ..___.__,___..__-.—_ _.__..__—._.____.___.__._..__ ‘ W EE3750 Test 1 6/26/03 Problem 4: What is the value of the array “result” LEA MOV GO: MOV ADD XLATB PUSH MOV MOV POP LOOP CODE RESULT Name (Era/en A 14/4" “6/ after the following code segment has run? (20 pts) BX, CODE CX, 6 AL, CL AL,CL ---—-—-) AL. MW} 12/ lb, 3’, i, 4/ "9 4452 rm /2 grey/‘1‘ BX BX, (x RESULT[BX-1],AL ——; (gt/2a! #0 rem/9‘ 5., 0 BX GO db ‘gotnidgmezrfslxg' db 6 dup(?) /‘ 5 A71 _—— --——’ w “I ’ —-——- flex!» 7 J, w——Tm EE3750Test1 Name if 4% MW?” 6/26/03 Problem 5: foo db 01h, 35h, 36h, 70h, 67h, 98h, 20h, 32h, 51h, 10h sum dw ? M4 Sfi/MpZ/hfi‘t MW 5X 9 may “,4pr 5%: M AX m” ()0; j 5 M/Aw 74¢ Wm may 51',fl } Mar/m 5am : may BL/ army [51] M Ma! fix; BX y fly add 51/ ‘2 5 MM“; sam g 4/5/1047 n I 00” 5' JP/jrf {elk/51 moV 5”“M/ A EE3750 Test 1 6/26/03 Problem 6: Write a segment of assembly code to accomplish the following tasks (in order): (30 pts) /5 /7 f a) Determine the length of the provided string by searching for the ‘$’ character. ’5' /,// b) Copy the entire string to the physical memory location 23000h. string db ‘you could'be at the beach right now$’ A solid/M I'm 13%, 5M}? y, [may 9L 0 ("may (1" _ . MW 6. 1 6’ jean/x: mw AL/[gx] J, j”! (5” (WW AL /t7£ / _ SS: fib/fi/Q IE dang (10/0! N” 441944 I 5‘ MC 0L Mai/mm (mm/m» xii” 447/ "8‘ /'/’IC ’ 7’5 1751/91 (If/1,. ./ Vim/g 57%ch '/,../ 'n Dr. (4' y’mze 00M: may Ax 32042911 / "54 ’ 'N/ / 1‘ fwd ff ' MW E5” AX f M x 02:” 2’ gay MW 01, MW J " [5 (74/ MW II, fifiis’fi?‘ Wrist; J; firm/m MW 61/01. 2‘ mmmr fir“ 0/40 [73/7 Mat/5‘6 J“ W 5y)?” ...
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This note was uploaded on 01/25/2012 for the course EE 3750 taught by Professor Desouza during the Fall '08 term at LSU.

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Test 1 Solutions - EE3750 Test] Name @924&amp;quot; flag/g...

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