Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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- Suppose the register %rax contains 0x100, and the register %rbx contains 0x10. What value is stored in %rcx as a result of movq 2(%rax,%rbx,4), %rcx?arrow_forwardDesigning a mask for bit manipulation allows us to clear, set, invert, and extract the selected bits in the bit string. Applying bitwise operations AND, OR, XOR, NOT, SHL, SHR, ROL, and ROR allow us to pack and unpack bits in the bit string. In the following instructions below illustrates how bits are being "packed" and "unpacked" from/to the bit string to the 16-bits registers AX/BX, what would be the final bit string value loaded to the memory variable "unpackedData" from the 16-bit register BX?arrow_forwardPerform the following operations by converting the operands to 2’s complement binary numbers and then doing the addition or subtraction shown. Please show all work in binary, operating on 8-bit numbers. Is there an overflow?(a) 48 + 96(b) -45 - 28(c) -67 - (-41)arrow_forward
- can you please modify the code to calculate the exponent of a nember instead of incorrectly multiply: .ORIG x3000 ; Clear registers AND R0, R0, #0 AND R1, R1, #0 AND R2, R2, #0 ; Load x and y variables LD R0, VAR_X LD R1, VAR_Y ; Loop 1 iterates y times Loop1 ADD R2, R2, R0 ; Multiply R2 by R0 ; Loop 1 end ADD R1, R1, #-1 BRn EndLoop1 ; Loop 2 multiplies R0 by x Loop2 ADD R0, R0, #-1 ; Loop 2 end BRp Loop1 EndLoop1 ; Answer in R2 ; Store the result in memory address x8000 STI R2, PTR_OUT ; Halt the program HALT VAR_X .FILL x0003 VAR_Y .FILL x0004 PTR_OUT .FILL x8000 .ENDarrow_forwarda) The figure below shows a ROM which is used to implement the functions fı,f2,f3 and f4. АВС 2 1 0 3-to-8 decoder 0 1 23 4 5 6 7 fi f2 f3 f4 Deduce the truth table of functions f1,f2,f3 and f4 ABC |f1 f2 f3 f4 1 0 1 0 1 1 1 1 1 1 1 |11|1 b) Program the PAL shown in figure to implement the following logic functions Fl=ĀD+BC+BCD F2=ABCD+AC+BCD F1 F2arrow_forwardthe following operation: write the operand as 4-bit 2's complement binary numbers, perform the process shown, show all work in binary operating on 4-bit numbers, and • identify overflow if necessary 2 - 4arrow_forward
- d) FF + 01arrow_forwardThe following figure shows the four-bit Adder-Subtractor. Here A = 2(0010), B = 5 (0101) and M = 0. Select all the TRUE statements. a The circuit is working as an adder. b The circuit is working as a subtractor. c The output result S = 1100. d The output result S = 0111.arrow_forwardI get an error in LC3 assembly programming when i try to run this code. can someone explain how i can fix this and give me the solution to the fix. i will be very thankfullarrow_forward
- Designing a mask for bit manipulation allows us to clear, set, invert, and extract the selected bits in the bit string. Applying bitwise operations AND, OR, XOR, NOT, SHL, SHR, ROL, and ROR allow us to pack and unpack bits in the bit string. In the following instructions below illustrates how bits are being "packed" and "unpacked" from/to the bit string to the 16-bits registers AX/BX, what would be the final bit string value loaded to the memory variable "unpackedData" from the 16-bit register BX? MOV EAX, 0 MOV EBX, 0 MOV AX, 0X47E3 MOV packedData, AX MOV BX, packedData AND BX, 0XE000 ROL BX, 4 MOV unpackedData, BXarrow_forwardwhat is the binary result of 100 + 10 in a byte signed integer register? Is the binary value correct? Please explain your answer.arrow_forwarda) 1B48 + 39E1arrow_forward
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