Assembly Language Version

Assembly Language Version

Intel could have made their assembly language exactly identical to our program in plain English but they have abbreviated a lot of symbols to avoid unnecessarily lengthy program when the meaning could be conveyed with less effort. For example Intel has named their move instruction “mov” instead of “move.” Similarly the Intel order of placing source and destination is opposite to what we have used in our English program, just a change of interpretation. So the Intel way of writing things is:

operation destination, source operation destination operation source
operation

The later three variations are for instructions that have one or both of their operands implied or they work on a single or no operand. An implied operand means that it is always in a particular register say the accumulator, and it need not be mentioned in the instruction. Now we attempt to write our program in actual assembly language of the iapx88.