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Bi tp K Thut Vi X L S2. Hn np:9/10/2014 Ngi lm bi: Ngi chm bi:H v tn: H v tn: Lp: MSSV: Lp: MSSV:

Nhm: Nhm:im:

1. Bi tp v cc ch a ch (7 im) Gi thit rng DS=0200H, BX=01235H, DI=0400H,SS=2000H, BP=1000H.Hy xc nh s thay i ca cc thanh ghi v nh trong chui

Lnh imti a

Tr li im

MOV AX, 1234H 1

MOV [1234H],AL 1

MOV [BX], AX 1

MOV [BP+DI], AH 1

DEC BX 1

MOV DX, [BX] 1

MOV DX, [BP] 1

2. Bi tp v m ho lnh (4 im)

a. Chuyn t m my 8B07H sang assembly (2 im) b. Chuyn t m my 8B9E004CH sang assembly (2 im)

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Bi tp K Thut Vi X L S2. Hn np:9/10/2014

3. Cho: AX=5678H, BX=1234H, CX=1807H, DS=0ABCDH, ( 15 im) SS=0ABCEH, SP=0FFH

Xc nh gi tr cc thanh ghi v gi tr ca cc nh lin quan sau tnglnh:

Lnh i mti a

Tr li i m

PUSH AX 1

PUSH BX 1

MOV AX, BX 1

ADD AL,2 1

SHL AL,2 1

SHR AL,3 1

MUL BL 1

MOV AH,CL 1

XOR BX, AX 1

MOV [BX+2],AX 1

OR CX, AX 1

AND CX, BX 1

NEG CX 1

POP BX 1

POP AX 1

4. c sch tham kho, internet tm hiu: (4 im) a. So snh 2 lnhINC AX v ADD AX,1 v thi gian thc hin, kch thc m

lnh, kt qu tnh ton. (2 im) b. Tm hiu xem lnh LEA CX,[BX][DI] thc hin cng vic g. Cho BX=1234h,

DI=2000h. (2 im)