How to convert a SIC machine ASSEMBLY SOURCE PROGRAM to OBJECT PROGRAM

Published: 01 March 2017
on channel: abhishek seth
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There are a set of rules to convert a sic machine ASSEMBLY SOURCE PROGRAM to OBJECT PROGRAM
Object program format contains three types of records:

⦁ Header record: Contains the program name, starting address and length.

⦁ Text record: Contains the machine code and data of the program.

⦁ End record: Marks the end of the object program and specifies the address in the program where execution is to begin.
Record format is as follows:


Header record:

Col. 1 H
Col.2-7 Program name
Col.8-13 Starting address of object program
Col.14-19 Length of object program in bytes

Text record:

Col.1 T
Col.2-7 Starting address for object code in this record
Col.8-9 Length of object code in this record in bytes
Col 10-69 Object code, represented in hexadecimal (2 columns per byte of object
code)

End record:

Col.1 E
Col.2-7 Address of first executable instruction in object program.



Video created by:- Abhishek Seth and Venkatesh Kumar


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