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ALBS
Suhani Singhal - ss4925 Brennan Wallace - bgw2119
LLVM OCaml + = Steep learning curve
+Arrays +Structs +Printing +Casting
2000+ LOC 100+ commits 88 test cases MicroC++
ALBS Suhani Singhal - ss4925 Brennan Wallace - bgw2119 Steep - - PowerPoint PPT Presentation
ALBS Suhani Singhal - ss4925 Brennan Wallace - bgw2119 Steep - - PowerPoint PPT Presentation
ALBS Suhani Singhal - ss4925 Brennan Wallace - bgw2119 Steep learning curve LLVM OCaml = + 2000+ LOC 88 test cases MicroC++ 100+ commits +Arrays +Structs +Printing +Casting Features Arrays Multiline Comments
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Features
- Procedural
- Functions
- Data Types
○ Mutable ○ Static typing ○ Primitives ■ Integers ■ Floats ■ Characters ■ Booleans ■ Void
{ : int} main = [ print("Hello World!"); rtn 0; ]
- Arrays
- Structs
- Operators
○ Binary ○ Unary
- Multiline Comments
- Implicit casting
- I/O functions
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Program Global vars Functions Structs
AST
Datatype Name Formals Locals Body vars Name
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Program file .sb extension Scanner File to Tokens Paser Tokens to AST Codegen AST to LLVM Semantic Checker Checks AST
Compiler Architecture
LLVM code .ll extension
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Arrays I/O
flt[] array; array = new flt[2]; array[0] = 2.3; array[1] = 5.2; print(arr[0]);
Implicit casting
int i; int j; i = 2; j = i + ‘a’; chr c; while(c != '\r'){ c = getchar(); print(c); }
Datatypes
int i; chr c; bln b; flt f;
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{int flt bln : chr} helloWorld = i f b [ if(b){ print(“Hello”); print(f); } rtn ‘a’; ] {flt[] bln : chr} helloWorld = f_arr b [ if(b){ print(“Hello”); print(f_arr[0]); } rtn ‘a’; ]
Structs Functions
struct Person[ int age; flt weight; chr gender; ] {:int}main = [ struct Person p; p.age = 20; p.gender = ‘f’; p.weight = 120.5; rtn 0; ]
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Demo Time
Credits: Prof. Stephen Edwards, Jacob Graff