Write a piece of code to find the number of odd integers in an array of size 1024 byte stored at addresses starting at 21000H, store the result in location 51000H. Write a piece of code that exchanges a block of 256 bytes stored at locations starting at 34000H with another block starting at 36000H. • By using XCHG instruction. • By using MOV instruction. *Write an ALP to find the 2's complement of a block of 100 bytes starting at 53000H and store the result in

Write a piece of code to find the number of odd integers in an array of size 1024 byte stored at addresses starting at 21000H, store the result in location 51000H. Write a piece of code that exchanges a block of 256 bytes stored at locations starting at 34000H with another block starting at 36000H. • By using XCHG instruction. • By using MOV instruction. *Write an ALP to find the 2's complement of a block of 100 bytes starting at 53000H and store the result in

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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H.W: < Write a piece of code to find the number of odd integers in an array of size 1024 byte stored at addresses starting at 21000H, store the result in location 51000H. < Write a piece of code that exchanges a block of 256 bytes stored at locations starting at 34000H with another block starting at 36000H. e By using XCHG instruction. * By using MOV instruction. < Write an ALP to find the 2’s complement of a block of 100 bytes starting at 53000H and store the result in < Write an ALP to find the minimum value of a byte from a block of 256 bytes starting at 53000H. Store the result at 56000H. < Write an ALP to find the sum of the following series: Sum=1+2+3 +4+..ccccienrienviinsaneiescsens +100
:- We will be implementing a new instruction within the MIPS architecture. New instruction will decrement a Variable stored in a memory location and store the decremented value in a register (Rt). This new instruction will be called DECR. Its usage and interpretation is Usage: DECR Offset(4*Rs),Rt Interpretation: Reg[Rt]= Mem[4*Rs+Offset] - 1 Which blocks are used and which control signals are generated for this instruction. How would the Instruction code fields look like ? Do we need to add an extra hardware logic, explain ? (You may draw a simplified datapath flow)
5. Let the content of register $t1 represent a 2's complement number N. Write a MIPS code fragment such that the register $t2 stores the absolute value of N. In other words, register $t2 has a copy of register $t1 if N is positive, and $t2 should hold the negative of N, if N is negative.
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In this programming activity, you will be writing an LC-3 assembly program that will examine a given 16- bit value stored in a given memory location. Your program should count the number of 1s that occur in the given value. HINT: You can examine each bit of a given value by shifting the value by one bit to the left repeatedly and looking at the resulting value of MSB (sign bit). Your program should assume that the initial bit pattern is in memory location labeled PATTERN. Your program should count the number of 1s in PATTERN and store the count in memory location labeled NUM_ONES. Your program should start at memory location x3100. Example: If PATTERN contains the bit pattern 1111 0000 0000 1111 (XF0OF), then your program should store 8 into NUM_ONES. You will need to demonstrate the correct execution of your program by using the LC-3 Simulator.
1- Write an assembly program to search the data byte 5A in ten memory locations starting at address (3500). If you find the data HLT the program. 2- Write an assembly program to find 1's complement for even bytes and 2's complement for odd bytes stored in memory locations between (5000-500F) (note: don't use NOT and NEG instructions). 3- Write an assembly program to invert bit-3 and 5 of only the positive numbers in 5 memory locations started at address (200). 4- Writ an assembly program to reset the bit-0 and bit-7 and set bit-4 and bit-2 of each byte in five memory locations starting at 5000:100 5- Write an assembly program to check bit-0 in 8 memory locations, count how many times is 0 and how many times 1 is.
8. Write assembly program to perform the addition of two 32 bits binary numbers 235DA7COH and 09FFAC00H Store the results on memory offset location(12D8H). Solution: MOV DX, 235D H MOV CX, A7C0H MOV BX, 09FF H MOV AX, ACOOH ADD CX, AX ADC DX, BX MOV [12D8H], CX MOV [12DAH], DX Otrue false
8. Write assembly program to perform the addition of two 32 bits binary numbers 235DA7C0H and 09FFAC00H Store the results on memory offset location (12D8H). Solution: MOV DX, 235D H MOV CX, A7C0H MOV BX, 09FF H MOV AX, ACOOH ADD CX, AX ADC DX, BX MOV [12D8H], CX MOV [12DAH], DX Otrue false
8086Mp memory is logically divided into segments, the size of each segment is: 1Mbyte 64Kbyte 128Kbyte 2Kbyte 10Kbyte 32Кbyte 1Kbyte Let CS=5A71H, IP=BF6CH. What is the name of the memory segment given in the following figure AFTER executing the instruction (CALL [BX+DI] )? if IPnew=8C23H. * BF H 6F80BH 6C H 6F80AH Extra segment Stack segment Code segment Data segment
Write a program to add the following five data bytes stored in memory locations starting from XX60H, and display the sum. (The sum does not generate a carry. Use register pair DE as a memory pointer to transfer a byte from memory into a register.) Data(H) 1A, 32, 4F, 12, 27 In program use suitable to replace XX.