zxq5/damn_simple_architecture
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IT WORKS HELL YEAH.

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zxq5
2025-06-18 22:53:01 +01:00
parent 1210b19333
commit e281bc2d1d
26 changed files with 715 additions and 188 deletions
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assembler/src/expand.rs
+43 -11
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@@ -29,7 +29,14 @@ fn try_expand(
match node.opcode() {
Opcode::Push => expand_push(node.clone(), result)?,
Opcode::Pop => expand_pop(node.clone(), result)?,
Opcode::Ldb | Opcode::Ldh | Opcode::Ldw => expand_ldx(node.clone(), result)?,
Opcode::Ldb
| Opcode::Ldbs
| Opcode::Ldh
| Opcode::Ldhs
| Opcode::Ldw
| Opcode::Stb
| Opcode::Sth
| Opcode::Stw => expand_ldx(node.clone(), result)?,
Opcode::Lwi => expand_lwi(node.clone(), result)?,
Opcode::Resb | Opcode::Resh | Opcode::Resw => expand_resx(node.clone(), result)?,
Opcode::Db | Opcode::Dh | Opcode::Dw => expand_dx(node.clone(), result)?,
@@ -43,8 +50,20 @@ fn expand_push(current: Node, nodes: &mut Vec<Node>) -> Result<(), AssembleError
let reg = expect_type!(current.arg(0).unwrap(), Register)?;
nodes.extend(vec![
node!(label, Opcode::Iadd, reg.clone(), Token::Immediate(4)),
node!(None, Opcode::Stw, reg, Token::Register(Register::Spr)),
node!(
label,
Opcode::Iadd,
reg.clone(),
Token::Immediate(4),
reg.clone()
),
node!(
None,
Opcode::Stw,
reg,
Token::Register(Register::Spr),
Token::Immediate(0)
),
]);
Ok(())
@@ -55,8 +74,20 @@ fn expand_pop(current: Node, nodes: &mut Vec<Node>) -> Result<(), AssembleError>
let reg = expect_type!(current.arg(0).unwrap(), Register)?;
nodes.extend(vec![
node!(label, Opcode::Isub, reg.clone(), Token::Immediate(4)),
node!(None, Opcode::Ldw, reg, Token::Register(Register::Spr)),
node!(
label,
Opcode::Isub,
reg.clone(),
Token::Immediate(4),
reg.clone()
),
node!(
None,
Opcode::Ldw,
reg,
Token::Register(Register::Spr),
Token::Immediate(0)
),
]);
Ok(())
@@ -65,24 +96,25 @@ fn expand_pop(current: Node, nodes: &mut Vec<Node>) -> Result<(), AssembleError>
fn expand_ldx(current: Node, nodes: &mut Vec<Node>) -> Result<(), AssembleError> {
let opcode = current.opcode();
let name = expect_type!(current.arg(0).unwrap(), Symbol)?;
let reg = expect_type!(current.arg(2).unwrap(), Register)?;
let reg = expect_type!(current.arg(1).unwrap(), Register)?;
let offset = expect_type!(current.arg(2).unwrap(), Immediate)?;
nodes.extend(vec![
node!(current.label(), Opcode::Lli, name.clone(), reg.clone()),
node!(None, Opcode::Lui, name.clone(), reg.clone()),
node!(None, opcode, reg.clone(), Token::Immediate(0), reg),
node!(None, opcode, reg.clone(), reg, offset),
]);
Ok(())
}
fn expand_lwi(current: Node, nodes: &mut Vec<Node>) -> Result<(), AssembleError> {
let reg = expect_type!(current.arg(0).unwrap(), Register)?;
let name = expect_type!(current.arg(1).unwrap(), Symbol)?;
let val = expect_type!(current.arg(0).unwrap(), Symbol, Immediate)?;
let reg = expect_type!(current.arg(1).unwrap(), Register)?;
nodes.extend(vec![
node!(current.label(), Opcode::Lli, name.clone(), reg.clone()),
node!(None, Opcode::Lui, name.clone(), reg.clone()),
node!(current.label(), Opcode::Lli, val.clone(), reg.clone()),
node!(None, Opcode::Lui, val.clone(), reg.clone()),
]);
Ok(())