(d) You are working on a redesign of a simple 16-bit computer which supports at most 64 kilobytes of memory. Currently, memory is word-addressed and all memory accesses load or store a 16-bit value. For example, LDA Ox6502 loads a 16-bit value from address 0x6502 into register A. The change is to support additionally 8-bit accesses, thanks to an expanded machine language (already designed by a colleague) which now supports instructions such as: LDAW Ox6502 LDAB Ox6502 ; load 16 bits from addr 6502 into A ; load 8 bits from addr 6502 into A Outline, at a high level, how you would bring about this change in the CPU design, and mentioning any difficulties you expect to encounter.

(d) You are working on a redesign of a simple 16-bit computer which supports at most 64 kilobytes of memory. Currently, memory is word-addressed and all memory accesses load or store a 16-bit value. For example, LDA Ox6502 loads a 16-bit value from address 0x6502 into register A. The change is to support additionally 8-bit accesses, thanks to an expanded machine language (already designed by a colleague) which now supports instructions such as: LDAW Ox6502 LDAB Ox6502 ; load 16 bits from addr 6502 into A ; load 8 bits from addr 6502 into A Outline, at a high level, how you would bring about this change in the CPU design, and mentioning any difficulties you expect to encounter.

Name: (d) You are working on a redesign of a simple 16-bit computer whichsu
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Description: (d) You are working on a redesign of a simple 16-bit computer whichsupports at most 64 kilobytes of memory. Currently, memory isword-addressed and all memory accesses load or store a 16-bitvalue. For example,LDA Ox6502loads a 16-bit value from addre

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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Q1- Write a program in assembly language for the 8085 microprocessor to send one byte of data located at the memory address (3000H) using SOD at a baud rate of 1200. Information: The 8085 processor operates at a frequency of 3.072 MHz. When sending the required byte, you must adhere to the following: The two high bits of the start bits must be sent, after that the data bits are sent, after that the low bit of the stop bit is sent. The following flowchart will help you. The solution must be integrated and include the calculation of the baud rate delay time Transmit Set up Character Bit Counter • Send Start Bit No Wait Bit Time Get Character in Accumulator Output Bit Using Do Wait Bit Time Rotate Next Bit in Do Decrement Bit Counter Is It Last Bit? Yes • Add Parity if Necessary Send Two Stop Bits Return (a)
Q1- Write a program in assembly language for the 8085 microprocessor to send one byte of data located at the memory address (3000H ) using SOD at a baud rate of 1200. Information: The 8085 processor operates at a frequency of 3.072 MHz . When sending the required byte, you must adhere to the following: The two high bits of the start bits(1 1) must be sent, after that the data bits are sent, after that the low bit of the stop bit (0) is sent. The following flowchart will help you. The solution must be integrated and include the calculation of the baudrate delay time
There is an application that requires the following hardware: an Intel 8031, a Program ROM of 8Kx8, a Data ROM of 4Kx8 for look-up tables and a Data RAMs of 8Kx8. The memory map of the design: Program ROM should start at address 0000H. Then, the Data ROM should come above the Program ROM. Finally the Data RAM must go to the top of the memory map. There should be no gaps between the memory addresses of the external ROMs. Calculate the address space of the ROMs and RAMs of your design.
There is an application that requires the following hardware: an Intel 8031, a Program ROM of 8Kx8, a Data ROM of 4Kx8 for look-up tables and a Data RAMs of 8Kx8. The memory map of the design: Program ROM should start at address 0000H. Then, the Data ROM should come above the Program ROM. Finally the Data RAM must go to the top of the memory map. There should be no gaps between the memory addresses of the external ROMs. Show the design’s address space on a memory map, starting with 0000H at the bottom and FFFFH at the top.
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Question 4: There is an application that requires the hardware: an Intel 8031, a Program ROM of 8Kx8, a Data ROM of 4Kx8 for look-up tables, TWO Data RAMs of 8Kx8. The memory map of the design should be: Program ROM should start at address 0000μ. Then, the Data ROM should come above the Program ROM. Finally the Data RAMs must go to the top of the memory map. There should be no gaps between the memory addresses of the external ROMs or RAMS. A. Using logic gates, draw the pin connections of the design. Label your diagram fully. B. Calculate the address space of the ROMs and RAMs of your design. C. Show the design's address space on a memory map, starting with 0000μ at the bottom and FFFFH at the top.