Pass One: Read the source code and build the symbol table. Pass Two: Read the source code again and generate the object code. Both passes do pretty much the same things; parsing, tokenizing, processing expressions, etc. The difference is that in pass one you do not know "a priori" what the type, offset, and size of objects are that you have not yet encountered, so you must do the assembly in two passes. You can assemble in one pass if you constrain the coder to define symbols before they are referenced.
i found this link which had about 50 Q&A's.. the best so far.. has got all the required explanation..
http://ptucse.loremate.com/sp/node/3
by-bloodlife88
by H A N D
what is chopper explain its working principle
There is no definite term "assembler" in compilation process. It is more like "compiler" and "linker". Assembler usually refers to a compiler of machine language: http://en.wikipedia.org/wiki/Assembly_language So you probably mean difference between compiler and linker? Lets say you have a 3 module program, and it uses a 3rd party library, then the compiler will just compile each of your modules (separately) into binary pieces, which have "unclosed" references to abovementioned library and other 2 modules. After u have 3 binary pieces comes in "linker" it attaches those "unclosed" (or unlinked) links to other modules and library, therefore giving you working program file (.exe file for example). Really hard to say that without a schema or something like that:) Hope this answer helped you.
construction of DC generator
The difference between a program flow chart and a system flowchart is that a program flowchart is for a single program. A system flowchart is designed for an entire system with each box representing a process.
explain the working of ic engine cooloing systems
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. AdvantagesEvery source statement needs to be processed once.DisadvantagesWe cannot use any forward reference in our program. Forward ReferenceForward 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.
example of a organisation you have been working for or familiar with
explain cro construction and working
1. Explain the working principle of a milling machine?
describe motherboard and its working
Working, working and working.
working of blue tooth
explain how good working relationships can be developed with team members
Explain the workin principle of uln and its abbreviation
working of a lead acid battery
recoupment of short working
Explain the significance of letter of credit in international marketing?