Suppose that EAX = 00001000H, EBX = 00002000H, and DS = 0010H .Determine the addresses accessed...
Suppose that EAX = 00001000H, EBX = 00002000H, and DS = 0010H .Determine the addresses accessed by the following instructions, assuming real mode operation:
(a) MOV DH,[EBX+4*EAX+1000H]
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Suppose that EAX = 00001000H, EBX = 00002000H, and DS = 0010H
.Determine the addresses accessed...
5. Assume DS-1000, CS- 800, Ax-3412H, and BX-0200H. For the following x86 assembly code: MOV [BX...
5. Assume DS-1000, CS- 800, Ax-3412H, and BX-0200H. For the following x86 assembly code: MOV [BX +1000H], AX a) Translate the assembly code to machine code (in Hex). The opcode of MOV instruction is 100010. b) Show the values of AX, BX, and new values in memory, if there are, in the following figure c) (10 points) AFTER executing the instruction. (5 points) What is the memory address accessed by the instruction, assuming real mode operation? Show it in the...
1. Assume that you are given values in eax, ebx, ecx. Write an assembly code that...
1. Assume that you are given values in eax, ebx, ecx. Write an assembly code that does the following: eax = (ecx + edx ) - (eax + ebx) 2. Write a piece of code that copies the number inside al to ch. Example: Assume that Initially eax = 0x15DBCB19. At the end of your code ecx = 0x00001900. Your code must be as efficient as possible. 3. You are given eax = 0x5. Write one line of code in...
1. If DS-1000H, BX-0200H, SI-O2H, the contents of Memory units10200H 10205H are respectively 10H, 2AH, 3CH,...
1. If DS-1000H, BX-0200H, SI-O2H, the contents of Memory units10200H 10205H are respectively 10H, 2AH, 3CH, 46H 59H、6BH. What is the contents of the AX Register after each of the following instructions is executed? (1)MOV AX, 0200H (3)MOV AX, BX (5)MOV AX, [BX+SI (2) MOV AX, [200H (4) MOV AX, 3BXI (6) MOV AX, 2[BX+SI] 2, If DS 1000H, ES-2000H, SS-3500H, SI-00AOH, DI-0024H, BX-01 00H, BP-0200H. The Offset Address of the variable named VAL in the data segment is 0030H...
27. For lO computer interface function outb(0xB6, 0x43), which register to hold Ox43? (a) AL (c) DX (d) AX (b) BL 28. Suppose memory variable j is 32-bit. After executing the following instructio...
27. For lO computer interface function outb(0xB6, 0x43), which register to hold Ox43? (a) AL (c) DX (d) AX (b) BL 28. Suppose memory variable j is 32-bit. After executing the following instructions int j 0X20AB int *Ptr asmi MOV EAX, Ptr; MOV EBX, [EAX] ADD EBX, 1; Which of the following statements is true? (b) EBX hold 0x20AC in hexadecimal (d) EAX hold 0x20AC in hexadecimal (a) EBX hold 0x20AB in hexadecimal (c) EAX hold Ox20AB in hexadecimal 29....
Assume that BX, SI, and DI contain the following value: (BX) = 0200H (SI) = 8124H...
Assume that BX, SI, and DI contain the following value: (BX) = 0200H (SI) = 8124H (DI) =FF78H, (DS)=0000H The memory locations contain the following values: mem(1200H) = 82ABH mem(0200H) = 3CD6H mem(8324H) = 1AB4H and that label ALPHA has the following value with address 1000H: ALPHA 1200H For each of the following instructions (executed separately), specify the addressing mode used, write the expression for effective address EA in register transfer language, calculate it, and give the result of operation....
Q 2. Assuming a 32-bit operating environment, identify the mode of each operand in the following...
Q 2. Assuming a 32-bit operating environment, identify the mode of each operand in the following instructions. (Note: There are two operands in each instruction; identify both modes.) For a memory operand, specify whether it is direct memory mode or register indirect memory mode. Assume that the instructions are in a program also containing the code. .DATA value DWORD ? char BYTE *1. mov value, 100 2. movecx, value 3. mov ah, Oah *4. moveax, (esi] 5. mov [ebx], ecx...
(4 marks) Suppose that a program does read operations on the following memory addresses (e.g., with...
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Answer based on microprocessor 8086 (10) LEA BX, CX 7. Suppose that (AX)-4AOBH, the content of...
Answer based on microprocessor 8086
(10) LEA BX, CX 7. Suppose that (AX)-4AOBH, the content of [1020H] storage unit is 260FH. Try to determine the results of the following instructions. (1) MOV AX, 1020H (AX) (2) XCHG AX, [1020H) ; (AX) (3) MOV AX, [1020H) ;(AX)=- (4) LEA AX, [1020H) ; (AX) 10. Suppose the size of the stack segment is 256 bytes. The starting address of the stack is 1250: 0000H, assuming there are 5 word-sized data in the...
Need help on Assembly language 1.Solve the following conditions: A. Suppose AL contains 11001011 and CF...
Need help on Assembly language 1.Solve the following conditions: A. Suppose AL contains 11001011 and CF = 1. Give the new contents of AL after each of the following instructions is executed. Assume the above initial conditions for each part of this question. a. SHL AL,1 b. SHR AL,1 c. ROL AL,2 d. ROR AL,3 e. SAR AL,2 f. RCL AL,1 g. RCR AL,3 B. Suppose EAX contain ABCDH. Show the contents of BX and CX after...
(1) Computer hosts usually have two addresses, an Internet Protocol (IP) address and an Ethernet Media...
(1) Computer hosts usually have two addresses, an Internet Protocol (IP) address and an Ethernet Media Access Control (MAC) address. For the benefit of humans, the IP address is normally represented as a dotted decimal notation, such as 192.168.10.2. Each of the decimal octets in the address or a mask can be converted to 8 binary bits. Remember that the computer only understands binary bits. If all 4 octets were converted to binary, how many bits would there be? (2)...
5. Assume DS-1000, CS- 800, Ax-3412H, and BX-0200H. For the following x86 assembly code: MOV [BX +1000H], AX a) Translate the assembly code to machine code (in Hex). The opcode of MOV instruction is 100010. b) Show the values of AX, BX, and new values in memory, if there are, in the following figure c) (10 points) AFTER executing the instruction. (5 points) What is the memory address accessed by the instruction, assuming real mode operation? Show it in the...
1. If DS-1000H, BX-0200H, SI-O2H, the contents of Memory units10200H 10205H are respectively 10H, 2AH, 3CH, 46H 59H、6BH. What is the contents of the AX Register after each of the following instructions is executed? (1)MOV AX, 0200H (3)MOV AX, BX (5)MOV AX, [BX+SI (2) MOV AX, [200H (4) MOV AX, 3BXI (6) MOV AX, 2[BX+SI] 2, If DS 1000H, ES-2000H, SS-3500H, SI-00AOH, DI-0024H, BX-01 00H, BP-0200H. The Offset Address of the variable named VAL in the data segment is 0030H...
27. For lO computer interface function outb(0xB6, 0x43), which register to hold Ox43? (a) AL (c) DX (d) AX (b) BL 28. Suppose memory variable j is 32-bit. After executing the following instructions int j 0X20AB int *Ptr asmi MOV EAX, Ptr; MOV EBX, [EAX] ADD EBX, 1; Which of the following statements is true? (b) EBX hold 0x20AC in hexadecimal (d) EAX hold 0x20AC in hexadecimal (a) EBX hold 0x20AB in hexadecimal (c) EAX hold Ox20AB in hexadecimal 29....
Q 2. Assuming a 32-bit operating environment, identify the mode of each operand in the following instructions. (Note: There are two operands in each instruction; identify both modes.) For a memory operand, specify whether it is direct memory mode or register indirect memory mode. Assume that the instructions are in a program also containing the code. .DATA value DWORD ? char BYTE *1. mov value, 100 2. movecx, value 3. mov ah, Oah *4. moveax, (esi] 5. mov [ebx], ecx...
Answer based on microprocessor 8086
(10) LEA BX, CX 7. Suppose that (AX)-4AOBH, the content of [1020H] storage unit is 260FH. Try to determine the results of the following instructions. (1) MOV AX, 1020H (AX) (2) XCHG AX, [1020H) ; (AX) (3) MOV AX, [1020H) ;(AX)=- (4) LEA AX, [1020H) ; (AX) 10. Suppose the size of the stack segment is 256 bytes. The starting address of the stack is 1250: 0000H, assuming there are 5 word-sized data in the...
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