a. Assuming the byte counter is set up appropriately, specify the number of bytes that are added by the program. b. Specify the memory locations where the result is stored. c. Identify the two errors in the program.
a. Assuming the byte counter is set up appropriately, specify the number of bytes that are added by the program. b. Specify the memory locations where the result is stored. c. Identify the two errors in the program.
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
Related questions
Question
In the given question in the picture replace XX as per your comfort, which results in a valid addres of 8085 microprocessor.
![The following program adds the number of bytes stored in memory locations start-
ing from XX00H and saves the result in memory. Read the program and answer
the questions given below.
;Set up HL as a data pointer
;Set up D as a byte counter
; and E as a Carry register
:Add byte
;If the result has no carry, do not
; increment Carry register
LX1 H,XX00H
LX1, D,0000H
NEXT: ADD M
JNC SKIP
INR E
SKIP: DCR D
;Update byte counter
;Go to next byte
JNZ NEXT
LXI H,XX90H
MOV M,A
INX H
MOV M,E
;Save the result
HLT
a. Assuming the byte counter is set up appropriately, specify the number of bytes
that are added by the program.
b. Specify the memory locations where the result is stored.
c. Identify the two errors in the program.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe8ed19e3-e2fb-438b-84d2-c89e7649f01f%2F258774bd-9012-421d-9265-c5b843590f42%2Fdbi5v7k_processed.png&w=3840&q=75)
Transcribed Image Text:The following program adds the number of bytes stored in memory locations start-
ing from XX00H and saves the result in memory. Read the program and answer
the questions given below.
;Set up HL as a data pointer
;Set up D as a byte counter
; and E as a Carry register
:Add byte
;If the result has no carry, do not
; increment Carry register
LX1 H,XX00H
LX1, D,0000H
NEXT: ADD M
JNC SKIP
INR E
SKIP: DCR D
;Update byte counter
;Go to next byte
JNZ NEXT
LXI H,XX90H
MOV M,A
INX H
MOV M,E
;Save the result
HLT
a. Assuming the byte counter is set up appropriately, specify the number of bytes
that are added by the program.
b. Specify the memory locations where the result is stored.
c. Identify the two errors in the program.
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