Compiler Design Neso Academy -

The Legend of the High-Level Kingdom

• Used in predictive parsing (LL parsing).
• FIRST(α) = set of terminals that can begin strings derived from α.
• FOLLOW(A) = set of terminals that can appear immediately to the right of A.

This is where the compiler acts as a linguist and a judge. It ensures the code follows the "grammar" of the language (using Context-Free Grammars) and verifies that the logic holds water—like ensuring you aren't trying to add a word to a number. The Intermediate Representation (IR):

int a = 10;

Code generation maps intermediate code to target machine instructions. Topics include instruction selection, register allocation (graph coloring approach), spilling, and calling conventions. NESO emphasizes practical strategies for generating efficient code on hypothetical or simplified machine models, illustrating register usage and instruction sequencing to minimize loads/stores. compiler design neso academy