Logo
Home Study Material Contact Search
AI Chat FREE
  1. business
  2. accounting
  3. reg problem 3 (25 points) for the following progra

REG Problem 3 (25 points) For the following program code, calculate the machine code using...

80.2K

Verified Solution

Question

Accounting

image
REG Problem 3 (25 points) For the following program code, calculate the machine code using the given information and store in memory MOV CX, 9 Code Table: W-1| W-0 Here: MOV (DI), BL Immediate to register: 1011 w reg data INC DI AXI AL Reg/mem to mem/reg: opcode d w mod reg r/m CX CL DEC CX Increment register: 01000 reg DX DL JNZ Here Decrement register: 01001 reg BX BL Jump on non-zero: 01110101 (IP-inc8) SP AH Note: The memory contents start at 504; BP CH opcode for MOV is 100010. SI DH DI 0001 001 0101 011 100 101 110 110 Mod Mod = 11 Effective address calculation R/MW-0 W=1 R/M Mod 00 Mod -01 Mod-10 000 AL AX 000 (BX)+(SI) (BX)+(S1)+D8 (BX)+(S1)+D16 001 CL CX 001 (BX)+(DI) (BX)+(DI)+D8 (BX)+(DT)+D16 010 DL PX 010 (BP)+(SI) (BP)+(ST)+D8 (BP)+(SI)+D16 BL BX 011 (BP)+(DI) (BP)+(DI)+D8 (BP)+(DI)+D16 AH SP100 (SI) |(ST)+D8 (SI)+D16 CH BP 101 (DI) (DI)+D8 (DI)+D16 DH SI 110 Direct (BP)+D8 |(BP)+D16 111 BH DI ii KBX) (BX)+D8 (BX)+D16 00 Mode Memory Memory with 8-bit disp. Memory with 16-bit disp. Register 101 10 11 REG Problem 3 (25 points) For the following program code, calculate the machine code using the given information and store in memory MOV CX, 9 Code Table: W-1| W-0 Here: MOV (DI), BL Immediate to register: 1011 w reg data INC DI AXI AL Reg/mem to mem/reg: opcode d w mod reg r/m CX CL DEC CX Increment register: 01000 reg DX DL JNZ Here Decrement register: 01001 reg BX BL Jump on non-zero: 01110101 (IP-inc8) SP AH Note: The memory contents start at 504; BP CH opcode for MOV is 100010. SI DH DI 0001 001 0101 011 100 101 110 110 Mod Mod = 11 Effective address calculation R/MW-0 W=1 R/M Mod 00 Mod -01 Mod-10 000 AL AX 000 (BX)+(SI) (BX)+(S1)+D8 (BX)+(S1)+D16 001 CL CX 001 (BX)+(DI) (BX)+(DI)+D8 (BX)+(DT)+D16 010 DL PX 010 (BP)+(SI) (BP)+(ST)+D8 (BP)+(SI)+D16 BL BX 011 (BP)+(DI) (BP)+(DI)+D8 (BP)+(DI)+D16 AH SP100 (SI) |(ST)+D8 (SI)+D16 CH BP 101 (DI) (DI)+D8 (DI)+D16 DH SI 110 Direct (BP)+D8 |(BP)+D16 111 BH DI ii KBX) (BX)+D8 (BX)+D16 00 Mode Memory Memory with 8-bit disp. Memory with 16-bit disp. Register 101 10 11

Answer & Explanation Solved by verified expert
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students