Can u answer number 2 and 3 of part A Please I will rate you if answer is correct For the purpose of this lab, we are interested in using the ARC simulator to use:The console output port to display charactersThe keyboard input port to read characters1) Please provide comments for all instructions.2) What is the memory mapped address for the console output and keyboard input?3) Please identify the specific line of code that prints to console and reads thekeystroke.PART A - Output: Printing character to the displayThe memory addresses associated witheconsole output I/O device are:Oxffff0000 is the console (output) data portOxffff0004 is the console (output) status port where bit 7 is the ready flag (0: notready, 1: ready)Printing a character is achieved by:Checking the ready flag to see if device is ready for printing, i.e., check if the bit 7of the output status port is set to 1Storing the character to the output data port! Prints "Hello, world!\n" in the message area..begin1BASECOUT.equ Ox3fffcO.equ Ox0.equ Ox4!Starting point of the memory mapped region!Oxffff0000 Console Data Port!Oxffff0004 Console Status PortCOSTAT2048.orgadd%r0, %r0, %r2%r0, %r0, %r4sethi BASE, %r4addLoop:Id[%r2 + String], %r3 !Load next char into r3addcc %r3,%r0,%r3Endbe! stop if nullIdandcc %r1, Ox80, %r1beWait:[%r4+COSTAT]), %r1Wait%r3, [%r4+COUT] !Print to console%r2, 4, %r2Loopst!increment String offset (r2)addbaEnd:halt!A non-standard instruction to stop the simulator3000.org! The "Hellow, world!" stringString:Ох48, Ох65, 0хбс, Ох6с, 0х6fОx2с, Ох20, Ох77, Ох6f, Ох72Ох6с, Ох64, Ох21, 0х0а, 0.end

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Engineering

Computer Science

yaddresses associated D000 is the console (outp D004 is the console (outp

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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Question

Can u answer number 2 and 3 of part A

Please I will rate you if answer is correct

For the purpose of this lab, we are interested in using the ARC simulator to use:
The console output port to display characters
The keyboard input port to read characters
1) Please provide comments for all instructions.
2) What is the memory mapped address for the console output and keyboard input?
3) Please identify the specific line of code that prints to console and reads the
keystroke.
PART A - Output: Printing character to the display
The memory addresses associated wi
the
console output I/O device are:
Oxffff0000 is the console (output) data port
Oxffff0004 is the console (output) status port where bit 7 is the ready flag (0: not
ready, 1: ready)
Printing a character is achieved by:
Checking the ready flag to see if device is ready for printing, i.e., check if the bit 7
of the output status port is set to 1
Storing the character to the output data port
! Prints "Hello, world!\n" in the message area.
.begin
1
BASE
COUT
.equ Ox3fffcO
.equ Ox0
.equ Ox4
!Starting point of the memory mapped region
!Oxffff0000 Console Data Port
!Oxffff0004 Console Status Port
COSTAT
2048
.org
add
%r0, %r0, %r2
%r0, %r0, %r4
sethi BASE, %r4
add
Loop:
Id
[%r2 + String], %r3 !Load next char into r3
addcc %r3,%r0,%r3
End
be
! stop if null
Id
andcc %r1, Ox80, %r1
be
Wait:
[%r4+COSTAT]), %r1
Wait
%r3, [%r4+COUT] !Print to console
%r2, 4, %r2
Loop
st
!increment String offset (r2)
add
ba
End:
halt
!A non-standard instruction to stop the simulator
3000
.org
! The "Hellow, world!" string
String:
Ох48, Ох65, 0хбс, Ох6с, 0х6f
Оx2с, Ох20, Ох77, Ох6f, Ох72
Ох6с, Ох64, Ох21, 0х0а, 0
.end

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