Can you explain assembly code for the switch statement?
Still cant understand what the assembly code for the switch statement is doing, any help would be great. thanks.
What does a switch statement do in C?
A switch statement allows a variable to be tested for equality against a list of values. Each value is called a case, and the variable being switched on is checked for each switch case.
What is the case of C switch stack overflow?
It has to check first before jumping otherwise, the program would miserably crash. If you had sparse values (like, 23, 9233, 91238, and not 1, 2, 3…), the compiler would not generate such a table, and compare each value.
How to write assembly language in x86-switch?
Below is the assembly language code, which will be followed with my interpretation of it. I basically just need to use the jump table and fill in the case names.
A switch statement allows a variable to be tested for equality against a list of values. Each value is called a case, and the variable being switched on is checked for each switch case.
It has to check first before jumping otherwise, the program would miserably crash. If you had sparse values (like, 23, 9233, 91238, and not 1, 2, 3…), the compiler would not generate such a table, and compare each value.
Why is C switch similar to if.else ladder?
Because in case of less number of cases, the code is pretty similar to that generated for if…else ladder, but when number of cases increases, this unusual-looking implementation is seen. Thanks in advance.
How is the value separated in a switch statement?
Each alternative begins with the particular value, or list of values (see below), that the control variable may match and which will cause the control to goto the corresponding sequence of statements. The value (or list/range of values) is usually separated from the corresponding statement sequence by a colon or by an implication arrow.