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Explain difference between macro call and macro expansion.
Macro expansion: While a macro name is used along with a set of actual parameters this is replaced through a code generated from its body. Such code is termed as macro expansion. There are two kinds of expansions:
a. Lexical expansion
b. Semantic expansion
Lexical expansion: This means a replacement of character string by the other string during program generation. This is generally used to replace occurrences of formal parameters through corresponding actual ones.
Semantic Expansion: This implies generation of instructions build to the requirements of exact usage. This is characterized by the fact that various uses of a macro can lead to codes that differ in the number, opcodes and sequence of instructions.
The macro definition is located at the starting of the program is enclosed in between a macro header and macro end statement.
A macro statement consists of macro name and parameters
< macro name > { < parameters >}
Macro call: A macro is called through writing the macro name in the mnemonic field of an assembly statement.
What is pipelining? The overlapping of implementation of successive instructions is known as pipelining.
Unions allow the same area of memory to be accessed as different data types. The insurance example above would not work. Unions are useful (often in embedded programming) when i
TestManager has a wizard that you can use to copy or import test scripts and other test assets (Datapools) from one to another.
if the 6 is a and the b is 3 what is the c ?
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Q. Graphic symbol of S-R flip-flop? R-S Flip flop - Graphic symbol of S-R flip-flop is displayed in Fig below. It has 3 inputs S (set), R (reset) and C (for clock). Q(t+1) is
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How does the Applet update its window when information changes? Whenever an applet requires to update the information displayed in its window, this simply calls repaint ( ) way
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