Assignment Itech 1000

19 May Assignment Itech 1000

ITEC 1000 Assignment #2

Total = 100 marks (Solutions);

· 5 marks file name and general format

Instructions:

· All questions are based on Englander — Chapters 6 & 7.

· Use a word processor (if you use a non-MS WORD compatible program, e.g., Pages, save as PDF or RTF).

· Both questions and answers must be appropriately formatted (including tables) and well presented with enough explanation.

· Be sure to name the file as your full name in the following format (lowercase), e.g., peggy_carter.docx

· Submit via the upload link provided at the course site any time before or by the deadline, March 26, 11 PM (sharp); late submissions will not be accepted.

· Apply the LMC instruction set below to answer relevant questions.

 

LMC Instruction Set Instruction

Mnemonic

Numeric Code

 

Load

LDA

5xx

 

Store

STO

3xx

 

Add

ADD

1xx

 

Subtract

SUB

2xx

 

Input

IN

901

 

Output

OUT

902

 

End

HLT

000

 

Branch/Jump

BR

6xx

 

Branch if   zero

BRZ

7xx

 

Branch if   zero or positive

BRP

8xx

 

Data storage

DAT

xxx

 

1. Trace the program below and summarize what the program does; not a step-by-step description of each instruction. [5 marks]

 

Address / Mailbox #

Assembly / Mnemonic

Numeric   Code

 

00

IN

901

 

01

STO 90

390

 

02

IN

901

 

03

STO 91

391

 

04

LDA 90

590

 

05

OUT

902