added breakpoint
This commit is contained in:
parent
d7c744bc77
commit
ba3455fcff
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@ -1,17 +1,5 @@
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use crate::parse::ast::*;
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pub fn parse_value(value: Value) -> String {
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match value {
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Value::Number(e) => {
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return e.to_string();
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},
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Value::Var(e) => {
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return e.name.to_string();
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}
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}
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}
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pub fn fasm_codegen(exprs: Vec<Expr>) -> String {
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let mut asm_text = String::new();
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let mut asm_data = String::new();
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@ -24,8 +12,8 @@ pub fn fasm_codegen(exprs: Vec<Expr>) -> String {
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for expr in exprs.iter() {
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match expr {
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Expr::MathExpr(e) => {
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asm_text.push_str(format!("\tmov r10, {}\n", parse_value(e.left)).as_str());
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asm_text.push_str(format!("\tmov r11, {}\n", parse_value(e.right)).as_str());
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asm_text.push_str(format!("\tmov r10, {}\n", e.left.unwrap()).as_str());
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asm_text.push_str(format!("\tmov r11, {}\n", e.right.unwrap()).as_str());
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match e.operator {
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// If the operator is addition.
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MathOperator::OP_ADD => {
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@ -65,52 +53,56 @@ pub fn fasm_codegen(exprs: Vec<Expr>) -> String {
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match i {
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0 => {
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// First parameter. Put in %rdi.
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asm_text.push_str(format!("\tmov rdi, {:?}\n", parse_value(p.value)).as_str());
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asm_text.push_str(format!("\tmov rdi, {}\n", p.value.unwrap()).as_str());
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},
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1 => {
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// Second parameter. Put in %rsi.
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asm_text.push_str(format!("\tmov rsi, {:?}\n", parse_value(p.value)).as_str());
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asm_text.push_str(format!("\tmov rsi, {}\n", p.value.unwrap()).as_str());
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},
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2 => {
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// Third parameter. Put in %rdx.
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asm_text.push_str(format!("\tmov rdx, {:?}\n", parse_value(p.value)).as_str());
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asm_text.push_str(format!("\tmov rdx, {}\n", p.value.unwrap()).as_str());
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},
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3 => {
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// Fourth parameter. Put in %rcx.
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asm_text.push_str(format!("\tmov rcx, {:?}\n", parse_value(p.value)).as_str());
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asm_text.push_str(format!("\tmov rcx, {}\n", p.value.unwrap()).as_str());
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},
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4 => {
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// Fifth parameter. Put in %r8.
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asm_text.push_str(format!("\tmov r8, {:?}\n", parse_value(p.value)).as_str());
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asm_text.push_str(format!("\tmov r8, {}\n", p.value.unwrap()).as_str());
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},
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5 => {
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// Sixth parameter. Put in %r9.
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asm_text.push_str(format!("\tmov r9, {:?}\n", parse_value(p.value)).as_str());
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asm_text.push_str(format!("\tmov r9, {}\n", p.value.unwrap()).as_str());
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},
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_ => {
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// Parameters after the sixth parameter are pushed to the stack.
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asm_text.push_str(format!("\tpush {:?}\n", parse_value(p.value)).as_str());
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asm_text.push_str(format!("\tpush {}\n", p.value.unwrap()).as_str());
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}
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}
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}
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asm_text.push_str(format!("call {:?}", e.name).as_str());
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asm_text.push_str(format!("call {}", e.name).as_str());
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},
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Expr::VarDefenition(e) => {
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asm_data.push_str(format!("\t{} db {:?}", e.name, parse_value(e.value)).as_str());
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asm_data.push_str(format!("\t{} dq {}", e.name, e.value.unwrap()).as_str());
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},
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Expr::VarReference(e) => {
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asm_text.push_str(e.name);
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},
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Expr::Breakpoint => {
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asm_text.push_str("\tint3\n");
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},
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_ => unimplemented!("sorry unimplemented"),
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}
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}
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@ -7,5 +7,5 @@ use crate::parse::ast::*;
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pub mod parse;
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fn main() {
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fasm_codegen(vec![Expr::VarDefenition(VarDefenition {name: "goren", value: Value::Number(10)}), Expr::MathExpr(Math { left: Value::Var(VarReference {name: "goren"}), right: Value::Number(4), operator: MathOperator::OP_DIV})]);
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fasm_codegen(vec![Expr::VarDefenition(VarDefenition {name: "goren", value: Value::Number(10)}), Expr::MathExpr(Math { left: Value::Var(VarReference { name: "goren"}), right: Value::Number(17), operator: MathOperator::OP_MOD}), Expr::Breakpoint]);
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}
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@ -5,6 +5,7 @@ pub enum Expr<'a> {
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FunDefenition(FunDefenition<'a>),
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VarDefenition(VarDefenition<'a>),
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VarReference(VarReference<'a>),
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Breakpoint
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}
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// MATH EXPRESSION
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@ -69,3 +70,17 @@ pub enum Value<'a> {
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Var(VarReference<'a>),
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Number(u64),
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}
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impl<'a> Value<'a> {
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pub fn unwrap(&self) -> String {
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match self {
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Value::Number(e) => {
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return e.to_string();
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},
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Value::Var(e) => {
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return format!("[{}]", e.name.to_string());
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}
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}
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}
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}
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