src/codegen/fasm.rs

@@ -8,12 +8,19 @@ macro_rules! fasm_codegen {
 	fasm_codegen($exprs, true)
     };
 
-    (function: $exprs:expr) => {
+    (fun: $exprs:expr) => {
 	fasm_codegen($exprs, false)
     }
 }
 
+pub fn temp(counter: u64) -> String {
+    format!("tmp{:?}", counter)
+}
+
 pub fn fasm_codegen(exprs: &Vec<Expr>, not_a_function: bool) -> String {
+    // A counter for how many temporary variables have been created. This is used to create new ones. The new ones will be called tmp1, tmp2, etc.
+    let mut tmp_counter: u64 = 0;
+    
     // Define asm_func, used for functions.
     let mut asm_func = String::new();
     // Define asm_data, used for variables.
@@ -159,6 +166,7 @@ pub fn fasm_codegen(exprs: &Vec<Expr>, not_a_function: bool) -> String {
 	    Expr::Breakpoint       => {
 		// Write the interrupt for a debugger breakpoint.
 		asm_start.push_str("\tint3\n");
+		asm_start.push_str("\txor rax, rax\n");
 	    },
 
 	    // Return something from a function.
@@ -166,7 +174,8 @@ pub fn fasm_codegen(exprs: &Vec<Expr>, not_a_function: bool) -> String {
 		// Do the operation that should later be returned.
 		asm_start.push_str(fasm_codegen!(fun: &e).as_str());
 		// Move the return value to rbp + 8.
-		// [rbp + 8] ← return_value
+		asm_start.push_str("mov [rbp + 8], rax");
+		// 8(%rbp) ← return_value
 	    },
 
 	    // A function defenition.
@@ -174,7 +183,7 @@ pub fn fasm_codegen(exprs: &Vec<Expr>, not_a_function: bool) -> String {
 		// In x86-64 assembly, a function is defined as <function_name>:. Push this to the `asm_func`.
                 asm_func.push_str(format!("{}:\n", e.name).as_str());
 		// Call the function itself specifying that you are defining a function, and push the returned value to `asm_func`.
-	        asm_func.push_str(fasm_codegen!(function: &e.contents).as_str());
+	        asm_func.push_str(fasm_codegen!(fun: &e.contents).as_str());
 		// Use the ret instruction to return from the procedure.
                 asm_func.push_str("\tret\n");
             },
@@ -204,13 +213,15 @@ pub fn fasm_codegen(exprs: &Vec<Expr>, not_a_function: bool) -> String {
                 asm_func.push_str("\tret\n");
 
 	    }
+	    
 	    _ => unsafe {
 		// Write some data I randomly typed to your memory because don't going around playing with something that I haven't implemented yet.
 		let mut ptr = 0x00 as *mut f64;
 		::std::ptr::write(ptr, 124010240120401240.12410240124120401240);
 	    },
 	}
-        
+
+	
     }
     
 

src/parse/ast.rs

@@ -1,3 +1,5 @@
+use std::rc::Rc;
+
 #[derive(Debug)]
 pub enum Expr<'a> {
     MathExpr(Math<'a>),
@@ -78,24 +80,11 @@ pub struct ParamReference {
 // CONDITIONS
 
 #[derive(Debug)]
-<<<<<<< HEAD
 pub struct IfCondition<'a> {
     pub left: Expr<'a>,
     pub right: Expr<'a>,
     pub cond: COND_OP,
     pub action: Vec<Expr<'a>>
-=======
-pub struct IfStatement<'a> {
-    pub condition: Condition<'a>,
-    pub if_true: Vec<Expr<'a>>,
-}
-
-#[derive(Debug)]
-pub struct Condition<'a> {
-    pub left: Value<'a>,
-    pub right: Value<'a>,
-    pub between: COND_OP,
->>>>>>> parent of 2f942d3 (Added if statements, and made `Expr::Return` work.)
 }
 
 #[derive(Debug)]