Advantages of an Assembly Language
i. The symbolic programming of assembly language is
easier to write, understand and saves a lot of time and effort of the
programmer because it is easier to correct errors and modify program
instructions.
ii. Assembly language has the same efficiency of
execution as the machine language because there is one-to-one relationship
between assembly language program and its corresponding machine language
program.
iii. Assembly language allows the use of symbolic
operand which overcome the setback caused by the use of absolute addressing in
machine language.
iv. Assembly language can express very low-level
program accessing machine dependent registers and input/output.
v. Availability of macro instructions for
subprogram facilities.
Problems of an Assembly Language
i. Assembly language is machine dependent i.e.
program written for one computer might not run in other computers with
different hardware configuration.
ii. No symbolic names for memory locations, thus
there is need to keep track of the exact memory location where a piece of data
is stored.
iii. Code must be heavily documented because it is
very difficult to figure out what a program does by reading the code and also
when there is need to modify the code.
iv. Assembly language lacks high-level conveniences
such as variables and functions.
v. It denied the use of complex mathematical
functions and useful controls structures.
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