What is the Design of single pass assembler?

Answer 1

Single Pass Assembler A single pass assembler scans the program only once and creates the equivalent binary program. The assembler substitute all of the symbolic instruction with machine code in one pass. Advantages

Every source statement needs to be processed once.

Disadvantages

We cannot use any forward reference in our program. Forward Reference

Forward reference means; reference to an instruction which has not yet been encountered by the assembler. In order to handle forward reference, the program needs to be scanned twice. In other words a two pass assembler is needed.

Answer 2

The Flowchart of a single pass assembler is the symbolic representation of the steps that converts source code into the machine code using single pass assembler.

A single pass assembler is easy to design one can understand its working easily with the help of it flowchart. Flowchart is just like the algorithm, but contains different boxes for different purposes.

Answer 3

A flowchart is used in writing a program and offers a practical way to show how a program works to an outsider. A two-pass assembler can be used in designing the flowchart by first placing all of the variables in a chart, and secondly by filling in the gaps with numeric addresses.

Answer 4

A hammer, one pass and you're done