Did some work :p.

recursive
Goren Barak 2023-11-28 19:20:05 -05:00
parent 1016345107
commit fb098123d5
2 changed files with 18 additions and 18 deletions

View File

@ -8,19 +8,12 @@ macro_rules! fasm_codegen {
fasm_codegen($exprs, true)
};
(fun: $exprs:expr) => {
(function: $exprs:expr) => {
fasm_codegen($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.
@ -30,7 +23,7 @@ pub fn fasm_codegen(exprs: &Vec<Expr>, not_a_function: bool) -> String {
macro_rules! unwrap {
($item:expr) => {
asm_start.push_str(fasm_codegen!(fun: &vec![*$item.as_ref()]).as_str());-
asm_start.push_str(fasm_codegen!(fun: &vec![*$item.as_ref()]).as_str());
}
}
@ -166,7 +159,6 @@ 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.
@ -174,8 +166,7 @@ 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.
asm_start.push_str("mov [rbp + 8], rax");
// 8(%rbp) ← return_value
// [rbp + 8] ← return_value
},
// A function defenition.
@ -183,7 +174,7 @@ 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!(fun: &e.contents).as_str());
asm_func.push_str(fasm_codegen!(function: &e.contents).as_str());
// Use the ret instruction to return from the procedure.
asm_func.push_str("\tret\n");
},
@ -213,15 +204,13 @@ 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);
},
}
}

View File

@ -1,5 +1,3 @@
use std::rc::Rc;
#[derive(Debug)]
pub enum Expr<'a> {
MathExpr(Math<'a>),
@ -80,11 +78,24 @@ 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)]