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|
||||
version = "0.0.3"
|
||||
|
|
|
|||
|
|
@ -1,3 +1,3 @@
|
|||
[workspace]
|
||||
resolver = "2"
|
||||
members = ["hbbytecode", "hbvm", "hbxrt", "xtask"]
|
||||
members = ["hbasm", "hbbytecode", "hbvm", "hbxrt", "xtask"]
|
||||
|
|
|
|||
|
|
@ -0,0 +1,12 @@
|
|||
[package]
|
||||
name = "hbasm"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
[dependencies]
|
||||
paste = "1.0"
|
||||
with_builtin_macros = "0.0.3"
|
||||
|
||||
[dependencies.mlua]
|
||||
version = "0.9"
|
||||
features = ["luajit52", "macros", "vendored"]
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
li8(r1, 60)
|
||||
li8(r2, 69)
|
||||
eca()
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
label "label" -- set named label
|
||||
local a = label {} -- unassigned label
|
||||
|
||||
jmp16("label")
|
||||
a:here() -- assign label
|
||||
jmp16(a)
|
||||
|
||||
addi8(r3, r4, 5)
|
||||
|
|
@ -0,0 +1,53 @@
|
|||
use mlua::prelude::*;
|
||||
|
||||
#[derive(Clone, Debug, Default, FromLua)]
|
||||
pub struct ArrayList<T>(pub Vec<T>);
|
||||
impl<T> LuaUserData for ArrayList<T>
|
||||
where
|
||||
T: for<'lua> FromLua<'lua> + for<'lua> IntoLua<'lua> + Clone + std::fmt::Debug,
|
||||
{
|
||||
fn add_methods<'lua, M: LuaUserDataMethods<'lua, Self>>(methods: &mut M) {
|
||||
methods.add_meta_method(
|
||||
LuaMetaMethod::Index,
|
||||
|lua, this, index: LuaInteger| match this.0.get(
|
||||
(index as usize)
|
||||
.checked_sub(1)
|
||||
.ok_or_else(|| mlua::Error::runtime("Invalid index: 0"))?,
|
||||
) {
|
||||
Some(i) => i.clone().into_lua(lua),
|
||||
None => Ok(LuaValue::Nil),
|
||||
},
|
||||
);
|
||||
|
||||
methods.add_meta_method_mut(
|
||||
LuaMetaMethod::NewIndex,
|
||||
|_, this, (index, val): (LuaInteger, T)| match this.0.get_mut(
|
||||
(index as usize)
|
||||
.checked_sub(1)
|
||||
.ok_or_else(|| mlua::Error::runtime("Invalid index: 0"))?,
|
||||
) {
|
||||
Some(x) => {
|
||||
*x = val;
|
||||
Ok(())
|
||||
}
|
||||
None => Err(mlua::Error::runtime(format!(
|
||||
"Index out of bounds: length = {}, index = {index}",
|
||||
this.0.len()
|
||||
))),
|
||||
},
|
||||
);
|
||||
|
||||
methods.add_meta_method(LuaMetaMethod::Len, |_, this, ()| Ok(this.0.len()));
|
||||
methods.add_meta_method(LuaMetaMethod::ToString, |_, this, ()| {
|
||||
Ok(format!("{this:?}"))
|
||||
});
|
||||
methods.add_method_mut("push", |_, this, val: T| {
|
||||
this.0.push(val);
|
||||
Ok(())
|
||||
});
|
||||
methods.add_method_mut("pop", |lua, this, ()| match this.0.pop() {
|
||||
Some(val) => val.into_lua(lua),
|
||||
None => Ok(LuaValue::Nil),
|
||||
});
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,194 @@
|
|||
use {
|
||||
crate::arraylist::ArrayList,
|
||||
mlua::{prelude::*, Result, Scope},
|
||||
};
|
||||
|
||||
mod opsty {
|
||||
pub type R = i8;
|
||||
pub type B = i8;
|
||||
pub type H = i16;
|
||||
pub type W = i32;
|
||||
pub type D = i64;
|
||||
pub type A = i64;
|
||||
pub type O<'lua> = super::LuaValue<'lua>;
|
||||
pub type P<'lua> = super::LuaValue<'lua>;
|
||||
}
|
||||
|
||||
macro_rules! gen_insert {
|
||||
($($plain:ident),* $(,)?) => {
|
||||
macro_rules! insert {
|
||||
$(
|
||||
($label:expr, $lua:expr, $symrt:expr, $code:expr, $plain) => {
|
||||
$code.0.extend($label.to_le_bytes());
|
||||
};
|
||||
)*
|
||||
|
||||
($label:expr, $lua:expr, $symrt:expr, $code:expr, O) => {
|
||||
insert_label_ref::<4>(
|
||||
$label,
|
||||
$lua,
|
||||
&$symrt,
|
||||
&mut $code.0,
|
||||
)?;
|
||||
};
|
||||
|
||||
($label:expr, $lua:expr, $symrt:expr, $code:expr, P) => {
|
||||
insert_label_ref::<2>(
|
||||
$label,
|
||||
$lua,
|
||||
&$symrt,
|
||||
&mut $code.0,
|
||||
)?;
|
||||
};
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
gen_insert!(R, B, H, W, D, A);
|
||||
|
||||
macro_rules! generic_ins {
|
||||
{
|
||||
($lua:expr, $scope:expr);
|
||||
$($name:ident($($param_i:ident : $param_ty:ident),*);)*
|
||||
} => {{
|
||||
let lua = $lua;
|
||||
let scope = $scope;
|
||||
|
||||
let code = $lua.globals()
|
||||
.get::<_, LuaTable>("_CODE")?
|
||||
.get::<_, LuaAnyUserData>("text")?;
|
||||
|
||||
let symrt = $lua.globals()
|
||||
.get::<_, LuaTable>("_SYM_REPLS")?;
|
||||
|
||||
lua.globals().set(
|
||||
"_GENERIC",
|
||||
lua.create_table_from([$((
|
||||
stringify!($name),
|
||||
#[allow(unused)]
|
||||
{
|
||||
let code = code.clone();
|
||||
let symrt = symrt.clone();
|
||||
scope.create_function_mut(move |lua, (opcode, $($param_i),*): (u8, $(opsty::$param_ty),*)| {
|
||||
let mut code = code.borrow_mut::<ArrayList<u8>>()?;
|
||||
code.0.push(opcode);
|
||||
$(insert!($param_i, lua, symrt, code, $param_ty);)*
|
||||
Ok(())
|
||||
})?
|
||||
}
|
||||
)),*])?
|
||||
)?;
|
||||
}};
|
||||
}
|
||||
|
||||
macro_rules! ins {
|
||||
{
|
||||
$lua:expr;
|
||||
{$($opcode:expr, $mnemonic:ident, $ty:ident, $_doc:literal;)*}
|
||||
} => {{
|
||||
use std::fmt::Write;
|
||||
|
||||
let lua = $lua;
|
||||
let mut code = String::new();
|
||||
|
||||
$({
|
||||
paste::paste! {
|
||||
let name = match stringify!([<$mnemonic:lower>]) {
|
||||
"and" => "and_",
|
||||
"or" => "or_",
|
||||
"not" => "not_",
|
||||
name => name,
|
||||
};
|
||||
}
|
||||
|
||||
writeln!(
|
||||
code,
|
||||
"function {name}(...) _GENERIC.{ty}({opcode}, ...) end",
|
||||
ty = stringify!($ty).to_lowercase(),
|
||||
opcode = $opcode,
|
||||
).unwrap();
|
||||
|
||||
})*
|
||||
|
||||
lua.load(code).exec()?;
|
||||
}};
|
||||
}
|
||||
|
||||
pub fn setup<'lua, 'scope>(lua: &'lua Lua, scope: &Scope<'lua, 'scope>) -> Result<()>
|
||||
where
|
||||
'lua: 'scope,
|
||||
{
|
||||
generic_ins! {
|
||||
(lua, scope);
|
||||
rr (o0: R, o1: R);
|
||||
rrr (o0: R, o1: R, o2: R);
|
||||
rrrr(o0: R, o1: R, o2: R, o3: R);
|
||||
rrb (o0: R, o1: R, o2: B);
|
||||
rrh (o0: R, o1: R, o2: H);
|
||||
rrw (o0: R, o1: R, o2: W);
|
||||
rrd (o0: R, o1: R, o2: D);
|
||||
rb (o0: R, o1: B);
|
||||
rh (o0: R, o1: H);
|
||||
rw (o0: R, o1: W);
|
||||
rd (o0: R, o1: D);
|
||||
rrah(o0: R, o1: R, o2: A, o3: H);
|
||||
rroh(o0: R, o1: R, o2: O, o3: H);
|
||||
rrph(o0: R, o1: R, o2: P, o3: H);
|
||||
rro (o0: R, o1: R, o2: O);
|
||||
rrp (o0: R, o1: R, r2: P);
|
||||
o (o0: O);
|
||||
p (o0: P);
|
||||
n ();
|
||||
}
|
||||
|
||||
with_builtin_macros::with_builtin! {
|
||||
let $spec = include_from_root!("../hbbytecode/instructions.in") in {
|
||||
ins!(lua; { $spec });
|
||||
}
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn insert_label_ref<const SIZE: usize>(
|
||||
label: LuaValue,
|
||||
lua: &Lua,
|
||||
symrt: &LuaTable,
|
||||
code: &mut Vec<u8>,
|
||||
) -> Result<()> {
|
||||
match label {
|
||||
LuaValue::Integer(offset) => {
|
||||
if match SIZE {
|
||||
2 => i16::try_from(offset).map(|o| code.extend(o.to_le_bytes())),
|
||||
4 => i32::try_from(offset).map(|o| code.extend(o.to_le_bytes())),
|
||||
s => {
|
||||
return Err(mlua::Error::runtime(format!(
|
||||
"Invalid offset size (expected 2 or 4 bytes, got {s})"
|
||||
)));
|
||||
}
|
||||
}
|
||||
.is_err()
|
||||
{
|
||||
return Err(mlua::Error::runtime("Failed to cast offset"));
|
||||
}
|
||||
return Ok(());
|
||||
}
|
||||
LuaValue::UserData(ud) => {
|
||||
symrt.set(
|
||||
code.len() + 1,
|
||||
lua.create_table_from([("label", ud.get("id")?), ("size", SIZE)])?,
|
||||
)?;
|
||||
code.extend([0; SIZE]);
|
||||
}
|
||||
LuaValue::String(_) => {
|
||||
symrt.set(
|
||||
code.len() + 1,
|
||||
lua.create_table_from([("label", label), ("size", SIZE.into_lua(lua)?)])?,
|
||||
)?;
|
||||
code.extend([0; SIZE]);
|
||||
}
|
||||
_ => return Err(mlua::Error::runtime("Invalid label type")),
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
|
@ -0,0 +1,91 @@
|
|||
use {
|
||||
crate::{arraylist::ArrayList, Labels},
|
||||
mlua::{Result, prelude::*},
|
||||
};
|
||||
|
||||
#[derive(Clone, Copy, Debug, PartialEq, Eq, FromLua)]
|
||||
pub struct UnassignedLabel(pub usize);
|
||||
impl LuaUserData for UnassignedLabel {
|
||||
fn add_fields<'lua, F: LuaUserDataFields<'lua, Self>>(fields: &mut F) {
|
||||
fields.add_field_method_get("id", |_, this| Ok(this.0));
|
||||
}
|
||||
|
||||
fn add_methods<'lua, M: LuaUserDataMethods<'lua, Self>>(methods: &mut M) {
|
||||
methods.add_method("here", |lua, this, ()| {
|
||||
match lua
|
||||
.globals()
|
||||
.get::<_, LuaUserDataRefMut<Labels>>("_LABELS")?
|
||||
.0
|
||||
.get_mut(
|
||||
this.0
|
||||
.checked_sub(1)
|
||||
.ok_or_else(|| mlua::Error::runtime("Invalid label"))?,
|
||||
) {
|
||||
Some(entry) => {
|
||||
*entry = Some(
|
||||
lua.globals()
|
||||
.get::<_, LuaTable>("_CODE")?
|
||||
.get::<_, LuaUserDataRef<ArrayList<u8>>>("text")?
|
||||
.0
|
||||
.len(),
|
||||
);
|
||||
|
||||
Ok(())
|
||||
}
|
||||
None => Err(mlua::Error::runtime("Invalid label")),
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy, Debug, PartialEq, Eq, FromLua)]
|
||||
pub struct Label(pub usize);
|
||||
impl LuaUserData for Label {
|
||||
fn add_fields<'lua, F: LuaUserDataFields<'lua, Self>>(fields: &mut F) {
|
||||
fields.add_field_method_get("id", |_, this| Ok(this.0));
|
||||
}
|
||||
}
|
||||
|
||||
pub fn label<'lua>(lua: &'lua Lua, val: LuaValue<'lua>) -> Result<LuaValue<'lua>> {
|
||||
let globals = lua.globals();
|
||||
let mut labels = globals.get::<_, LuaUserDataRefMut<Labels>>("_LABELS")?;
|
||||
|
||||
let code_ix = globals
|
||||
.get::<_, LuaTable>("_CODE")?
|
||||
.get::<_, LuaUserDataRefMut<ArrayList<u8>>>("text")?
|
||||
.0
|
||||
.len();
|
||||
|
||||
match val {
|
||||
LuaValue::Table(_) => {
|
||||
labels.0.push(None);
|
||||
Ok(LuaValue::UserData(
|
||||
lua.create_userdata(UnassignedLabel(labels.0.len()))?,
|
||||
))
|
||||
}
|
||||
LuaValue::String(str) => {
|
||||
labels.0.push(Some(code_ix + 1));
|
||||
globals
|
||||
.get::<_, LuaTable>("_SYM_TABLE")?
|
||||
.set(str, labels.0.len())?;
|
||||
|
||||
Ok(LuaValue::UserData(
|
||||
lua.create_userdata(Label(labels.0.len()))?,
|
||||
))
|
||||
}
|
||||
LuaNil => {
|
||||
labels.0.push(Some(code_ix + 1));
|
||||
Ok(LuaValue::UserData(
|
||||
lua.create_userdata(Label(labels.0.len()))?,
|
||||
))
|
||||
}
|
||||
_ => Err(mlua::Error::BadArgument {
|
||||
to: Some("label".into()),
|
||||
pos: 1,
|
||||
name: None,
|
||||
cause: std::sync::Arc::new(mlua::Error::runtime(
|
||||
"Unsupported type (nil and string are only supported)",
|
||||
)),
|
||||
}),
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,44 @@
|
|||
use mlua::prelude::*;
|
||||
|
||||
pub fn link(
|
||||
symrt: LuaTable,
|
||||
symtab: LuaTable,
|
||||
labels: &[Option<usize>],
|
||||
code: &mut [u8],
|
||||
out: &mut impl std::io::Write,
|
||||
) -> mlua::Result<()> {
|
||||
for item in symrt.pairs::<usize, LuaTable>() {
|
||||
let (loc, val) = item?;
|
||||
let size: usize = val.get("size")?;
|
||||
let dest = labels
|
||||
.get(
|
||||
match val.get::<_, LuaValue>("label")? {
|
||||
LuaValue::Integer(i) => i,
|
||||
LuaValue::String(s) => symtab.get(s)?,
|
||||
_ => {
|
||||
return Err(mlua::Error::runtime(
|
||||
"Invalid symbol type (int or string expected)",
|
||||
))
|
||||
}
|
||||
} as usize
|
||||
- 1,
|
||||
)
|
||||
.copied()
|
||||
.flatten()
|
||||
.ok_or_else(|| mlua::Error::runtime("Invalid label"))?;
|
||||
|
||||
let loc = loc - 1;
|
||||
let dest = dest - 1;
|
||||
|
||||
let offset = dest.wrapping_sub(loc);
|
||||
match size {
|
||||
4 => code[loc..loc + size].copy_from_slice(&(offset as u32).to_le_bytes()),
|
||||
2 => code[loc..loc + size].copy_from_slice(&(offset as u16).to_le_bytes()),
|
||||
_ => return Err(mlua::Error::runtime("Invalid symbol")),
|
||||
}
|
||||
}
|
||||
|
||||
dbg!(&code);
|
||||
out.write_all(code)?;
|
||||
Ok(())
|
||||
}
|
||||
|
|
@ -0,0 +1,54 @@
|
|||
mod arraylist;
|
||||
mod ins;
|
||||
mod label;
|
||||
mod linker;
|
||||
|
||||
use {arraylist::ArrayList, mlua::{Result, prelude::*}, std::io::Read};
|
||||
|
||||
pub type Labels = ArrayList<Option<usize>>;
|
||||
|
||||
fn main() -> Result<()> {
|
||||
let mut code = vec![];
|
||||
std::io::stdin().read_to_end(&mut code)?;
|
||||
|
||||
let lua = Lua::new();
|
||||
lua.scope(|scope| {
|
||||
// Global values
|
||||
let globals = lua.globals();
|
||||
globals.set(
|
||||
"_CODE",
|
||||
lua.create_table_from([
|
||||
("text", ArrayList::<u8>::default()),
|
||||
("data", ArrayList::<u8>::default()),
|
||||
])?,
|
||||
)?;
|
||||
|
||||
globals.set("_LABELS", Labels::default())?;
|
||||
globals.set("_SYM_TABLE", lua.create_table()?)?;
|
||||
globals.set("_SYM_REPLS", lua.create_table()?)?;
|
||||
|
||||
// Functions
|
||||
globals.set("label", lua.create_function(label::label)?)?;
|
||||
ins::setup(&lua, scope)?;
|
||||
|
||||
// Register symbols
|
||||
for n in 0..255 {
|
||||
globals.set(format!("r{n}"), n)?;
|
||||
}
|
||||
|
||||
lua.load(code).exec()?;
|
||||
|
||||
linker::link(
|
||||
globals.get("_SYM_REPLS")?,
|
||||
globals.get("_SYM_TABLE")?,
|
||||
&globals.get::<_, Labels>("_LABELS")?.0,
|
||||
&mut globals
|
||||
.get::<_, LuaTable>("_CODE")?
|
||||
.get::<_, LuaUserDataRefMut<ArrayList<u8>>>("text")?
|
||||
.0,
|
||||
&mut std::io::stdout(),
|
||||
)
|
||||
})?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
|
@ -39,6 +39,7 @@ define_items! {
|
|||
OpsRW (OpR, OpW ),
|
||||
OpsRD (OpR, OpD ),
|
||||
OpsRRD (OpR, OpR, OpD ),
|
||||
OpsRRA (OpR, OpR, OpA ),
|
||||
OpsRRAH (OpR, OpR, OpA, OpH),
|
||||
OpsRROH (OpR, OpR, OpO, OpH),
|
||||
OpsRRPH (OpR, OpR, OpP, OpH),
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@
|
|||
//!
|
||||
//! Have fun
|
||||
|
||||
use hbbytecode::RoundingMode;
|
||||
use hbbytecode::{OpsRRA, RoundingMode};
|
||||
|
||||
use crate::mem::addr::AddressOp;
|
||||
|
||||
|
|
@ -271,23 +271,29 @@ where
|
|||
usize::from(count),
|
||||
);
|
||||
}),
|
||||
JMP => handler!(self, |OpsO(off)| self.pc = self.pc.wrapping_add(off)),
|
||||
JAL => handler!(self, |OpsRRO(save, reg, offset)| {
|
||||
JMP => {
|
||||
let OpsO(off) = self.decode();
|
||||
self.pc = self.pc.wrapping_add(off);
|
||||
}
|
||||
JAL => {
|
||||
// Jump and link. Save PC after this instruction to
|
||||
// specified register and jump to reg + relative offset.
|
||||
let OpsRRO(save, reg, offset) = self.decode();
|
||||
|
||||
self.write_reg(save, self.pc.get());
|
||||
self.pc = self
|
||||
.pcrel(offset, 3)
|
||||
.wrapping_add(self.read_reg(reg).cast::<i64>());
|
||||
}),
|
||||
JALA => handler!(self, |OpsRRW(save, reg, offset)| {
|
||||
}
|
||||
JALA => {
|
||||
// Jump and link. Save PC after this instruction to
|
||||
// specified register and jump to reg
|
||||
let OpsRRA(save, reg, offset) = self.decode();
|
||||
|
||||
self.write_reg(save, self.pc.get());
|
||||
self.pc = Address::new(
|
||||
self.read_reg(reg).cast::<u64>().wrapping_add(offset.into()),
|
||||
);
|
||||
}),
|
||||
self.pc =
|
||||
Address::new(self.read_reg(reg).cast::<u64>().wrapping_add(offset));
|
||||
}
|
||||
// Conditional jumps, jump only to immediates
|
||||
JEQ => self.cond_jmp::<u64>(Ordering::Equal),
|
||||
JNE => handler!(self, |OpsRRP(a0, a1, ja)| {
|
||||
|
|
@ -385,7 +391,10 @@ where
|
|||
STR16 => handler!(self, |OpsRRPH(dst, base, off, count)| {
|
||||
self.store(dst, base, self.pcrel(off, 3).get(), count)?;
|
||||
}),
|
||||
JMP16 => handler!(self, |OpsP(off)| self.pc = self.pcrel(off, 1)),
|
||||
JMP16 => {
|
||||
let OpsP(off) = self.decode();
|
||||
self.pc = self.pcrel(off, 1);
|
||||
}
|
||||
op => return Err(VmRunError::InvalidOpcode(op)),
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue