diff --git a/Cargo.lock b/Cargo.lock index fd50d29..24aae34 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2,93 +2,12 @@ # It is not intended for manual editing. version = 3 -[[package]] -name = "ahash" -version = "0.8.3" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "2c99f64d1e06488f620f932677e24bc6e2897582980441ae90a671415bd7ec2f" -dependencies = [ - "cfg-if", - "once_cell", - "version_check", -] - -[[package]] -name = "allocator-api2" -version = "0.2.16" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "0942ffc6dcaadf03badf6e6a2d0228460359d5e34b57ccdc720b7382dfbd5ec5" - -[[package]] -name = "ariadne" -version = "0.3.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "72fe02fc62033df9ba41cba57ee19acf5e742511a140c7dbc3a873e19a19a1bd" -dependencies = [ - "unicode-width", - "yansi", -] - -[[package]] -name = "beef" -version = "0.5.2" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "3a8241f3ebb85c056b509d4327ad0358fbbba6ffb340bf388f26350aeda225b1" - 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"ahash", - "allocator-api2", -] - -[[package]] -name = "hbasm" -version = "0.1.0" -dependencies = [ - "ariadne", - "bytemuck", - "hashbrown 0.14.0", - "hbbytecode", - "lasso", - "literify", - "logos", - "paste", -] - [[package]] name = "hbbytecode" version = "0.1.0" +dependencies = [ + "with_builtin_macros", +] [[package]] name = "hbvm" @@ -98,84 +17,17 @@ dependencies = [ ] [[package]] -name = "lasso" -version = "0.7.2" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "4644821e1c3d7a560fe13d842d13f587c07348a1a05d3a797152d41c90c56df2" -dependencies = [ - "ahash", - "hashbrown 0.13.2", -] - -[[package]] -name = "literify" +name = "hbxrt" version = "0.1.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "54e4d365df794ed78b4ce1061886f82eae7afa8e3a98ce4c4b0bfd0c777b1175" dependencies = [ - "litrs", - "proc-macro2", - "quote", + "hbvm", ] -[[package]] -name = "litrs" -version = "0.4.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "4f17c3668f3cc1132437cdadc93dab05e52d592f06948d3f64828430c36e4a70" -dependencies = [ - "proc-macro2", -] - -[[package]] -name = "logos" -version = "0.13.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c000ca4d908ff18ac99b93a062cb8958d331c3220719c52e77cb19cc6ac5d2c1" -dependencies = [ - "logos-derive", -] - -[[package]] -name = "logos-codegen" -version = "0.13.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "dc487311295e0002e452025d6b580b77bb17286de87b57138f3b5db711cded68" -dependencies = [ - "beef", - "fnv", - "proc-macro2", - "quote", - "regex-syntax", - "syn", -] - -[[package]] -name = "logos-derive" -version = "0.13.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "dbfc0d229f1f42d790440136d941afd806bc9e949e2bcb8faa813b0f00d1267e" -dependencies = [ - "logos-codegen", -] - -[[package]] -name = "once_cell" -version = "1.18.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d" - -[[package]] -name = "paste" -version = "1.0.14" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "de3145af08024dea9fa9914f381a17b8fc6034dfb00f3a84013f7ff43f29ed4c" - [[package]] name = "proc-macro2" -version = "1.0.66" +version = "1.0.67" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "18fb31db3f9bddb2ea821cde30a9f70117e3f119938b5ee630b7403aa6e2ead9" +checksum = "3d433d9f1a3e8c1263d9456598b16fec66f4acc9a74dacffd35c7bb09b3a1328" dependencies = [ "unicode-ident", ] @@ -189,17 +41,11 @@ dependencies = [ "proc-macro2", ] -[[package]] -name = "regex-syntax" -version = "0.6.29" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1" - [[package]] name = "syn" -version = "2.0.29" +version = "1.0.109" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c324c494eba9d92503e6f1ef2e6df781e78f6a7705a0202d9801b198807d518a" +checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237" dependencies = [ "proc-macro2", "quote", @@ -208,24 +54,26 @@ dependencies = [ [[package]] name = "unicode-ident" -version = "1.0.11" +version = "1.0.12" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "301abaae475aa91687eb82514b328ab47a211a533026cb25fc3e519b86adfc3c" +checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b" [[package]] -name = "unicode-width" -version = "0.1.10" +name = "with_builtin_macros" +version = "0.0.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b" +checksum = "a59d55032495429b87f9d69954c6c8602e4d3f3e0a747a12dea6b0b23de685da" +dependencies = [ + "with_builtin_macros-proc_macros", +] [[package]] -name = "version_check" -version = "0.9.4" +name = "with_builtin_macros-proc_macros" +version = "0.0.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f" - -[[package]] -name = "yansi" -version = "0.5.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "09041cd90cf85f7f8b2df60c646f853b7f535ce68f85244eb6731cf89fa498ec" +checksum = "15bd7679c15e22924f53aee34d4e448c45b674feb6129689af88593e129f8f42" +dependencies = [ + "proc-macro2", + "quote", + "syn", +] diff --git a/Cargo.toml b/Cargo.toml index 1c77a26..a648dd7 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -1,3 +1,3 @@ [workspace] resolver = "2" -members = ["hbasm", "hbbytecode", "hbvm"] +members = ["hbbytecode", "hbvm", "hbxrt"] diff --git a/hbasm/Cargo.toml b/hbasm/Cargo.toml deleted file mode 100644 index bd9e98e..0000000 --- a/hbasm/Cargo.toml +++ /dev/null @@ -1,22 +0,0 @@ -[package] -name = "hbasm" -version = "0.1.0" -edition = "2021" - -[dependencies] -ariadne = "0.3" -bytemuck = "1.13" -hashbrown = "0.14" -hbbytecode = { path = "../hbbytecode" } -literify = "0.1" -paste = "1.0" - -[dependencies.lasso] -version = "0.7" -default-features = false -features = ["no-std"] - -[dependencies.logos] -version = "0.13" -default-features = false -features = ["export_derive"] diff --git a/hbasm/assets/add.hbasm b/hbasm/assets/add.hbasm deleted file mode 100644 index b21dc5a..0000000 --- a/hbasm/assets/add.hbasm +++ /dev/null @@ -1,12 +0,0 @@ --- Add two numbers --- A + B = C - --- r1 A -li r1, 2 --- r2 Result -li r2, 0 --- B = 4 -addi r2, r1, 4 - --- terminate execution -tx \ No newline at end of file diff --git a/hbasm/assets/celsius_converter.hbasm b/hbasm/assets/celsius_converter.hbasm deleted file mode 100644 index 46c6c48..0000000 --- a/hbasm/assets/celsius_converter.hbasm +++ /dev/null @@ -1,16 +0,0 @@ --- r1 will be the temp in fahrenheit --- r2 temp in celsius --- r3/r4/r5 will be used by constants - --- (f - 32) * 5 / 9 - -li r1, 100 - -li r3, 32 -li r4, 5 -li r5, 9 - -sub r2, r1, r3 -mul r2, r2, r4 -dir r2, r0, r2, r5 -tx \ No newline at end of file diff --git a/hbasm/assets/ecall.hbasm b/hbasm/assets/ecall.hbasm deleted file mode 100644 index 565655d..0000000 --- a/hbasm/assets/ecall.hbasm +++ /dev/null @@ -1,14 +0,0 @@ -li r255, 0 -ecall - -li r255, 1 -li r254, 1 -li r253, 100 -ecall - -li r255, 2 -li r254, 0 -li r253, 0 -ecall - -tx \ No newline at end of file diff --git a/hbasm/assets/inf_loop.hbasm b/hbasm/assets/inf_loop.hbasm deleted file mode 100644 index dc56a41..0000000 --- a/hbasm/assets/inf_loop.hbasm +++ /dev/null @@ -1,2 +0,0 @@ -L: - jal r0, r0, L \ No newline at end of file diff --git a/hbasm/assets/memory.hbasm b/hbasm/assets/memory.hbasm deleted file mode 100644 index 0a31145..0000000 --- a/hbasm/assets/memory.hbasm +++ /dev/null @@ -1,4 +0,0 @@ -li r20, 1010 -st r20, r24, 0, 1 -addi r24, r0, 10 -tx \ No newline at end of file diff --git a/hbasm/assets/serial_driver.hbasm b/hbasm/assets/serial_driver.hbasm deleted file mode 100644 index 13bcb3a..0000000 --- a/hbasm/assets/serial_driver.hbasm +++ /dev/null @@ -1,18 +0,0 @@ -jmp r0, start -start: - jmp r0, init_serial_port - --- Uses r20 to set the port -init_serial_port: - add r20, r30, r10 - li r20, 00 - - -- outb(PORT + 1, 0x00); // Disable all interrupts - -- outb(PORT + 3, 0x80); // Enable DLAB (set baud rate divisor) - -- outb(PORT + 0, 0x03); // Set divisor to 3 (lo byte) 38400 baud - -- outb(PORT + 1, 0x00); // (hi byte) - -- outb(PORT + 3, 0x03); // 8 bits, no parity, one stop bit - -- outb(PORT + 2, 0xC7); // Enable FIFO, clear them, with 14-byte threshold - -- outb(PORT + 4, 0x0B); // IRQs enabled, RTS/DSR set - -- outb(PORT + 4, 0x1E); // Set in loopback mode, test the serial chip - -- outb(PORT + 0, 0xAE); // Test serial chip (send byte 0xAE and check if serial returns same byte) \ No newline at end of file diff --git a/hbasm/src/lib.rs b/hbasm/src/lib.rs deleted file mode 100644 index a3eb671..0000000 --- a/hbasm/src/lib.rs +++ /dev/null @@ -1,104 +0,0 @@ -//! Holey Bytes Assembler -//! -//! Some people claim: -//! > Write programs to handle text streams, because that is a universal interface. -//! -//! We at AbleCorp believe that nice programatic API is nicer than piping some text -//! into a program. It's less error-prone and faster. -//! -//! So this crate contains both assembleer with API for programs and a text assembler -//! for humans to write - -#![no_std] - -extern crate alloc; - -mod macros; - -use { - alloc::{vec, vec::Vec}, - hashbrown::HashSet, -}; - -/// Assembler -/// -/// - Opcode-generic, instruction-type-specific methods are named `i_param_` -/// - You likely won't need to use them, but they are here, just in case :) -/// - Instruction-specific methods are named `i_` -pub struct Assembler { - pub buf: Vec, - pub sub: HashSet, -} - -impl Default for Assembler { - fn default() -> Self { - Self { - buf: vec![0; 4], - sub: Default::default(), - } - } -} - -hbbytecode::invoke_with_def!(macros::text::gen_text); - -impl Assembler { - hbbytecode::invoke_with_def!(macros::asm::impl_asm); - - /// Append 12 zeroes (UN) at the end and add magic to the begining - /// - /// # HoleyBytes lore - /// - /// In reference HBVM implementation checks are done in - /// a separate phase before execution. - /// - /// This way execution will be much faster as they have to - /// be done only once. - /// - /// There was an issue. You cannot statically check register values and - /// `JAL` instruction could hop at the end of program to some byte, which - /// will be interpreted as some valid opcode and VM in attempt to decode - /// the instruction performed out-of-bounds read which leads to undefined behaviour. - /// - /// Several options were considered to overcome this, but inserting some data at - /// program's end which when executed would lead to undesired behaviour, though - /// not undefined behaviour. - /// - /// Newly created `UN` (as UNreachable) was chosen as - /// - It was a good idea to add some equivalent to `ud2` anyways - /// - It was chosen to be zero - /// - What if you somehow reached that code, it will appropriately bail :) - /// - (yes, originally `NOP` was considered) - /// - /// Why 12 bytes? That's the size of largest instruction parameter part. - pub fn finalise(&mut self) { - self.buf.extend([0; 12]); - self.buf[0..4].copy_from_slice(&0xAB1E0B_u32.to_le_bytes()); - } -} - -/// Immediate value -/// -/// # Implementor notice -/// It should insert exactly 8 bytes, otherwise output will be malformed. -/// This is not checked in any way -pub trait Imm { - /// Insert immediate value - fn insert(&self, asm: &mut Assembler); -} - -/// Implement immediate values -macro_rules! impl_imm_le_bytes { - ($($ty:ty),* $(,)?) => { - $( - impl Imm for $ty { - #[inline(always)] - fn insert(&self, asm: &mut Assembler) { - // Convert to little-endian bytes, insert. - asm.buf.extend(self.to_le_bytes()); - } - } - )* - }; -} - -impl_imm_le_bytes!(u64, i64, f64); diff --git a/hbasm/src/macros/asm.rs b/hbasm/src/macros/asm.rs deleted file mode 100644 index 98db69f..0000000 --- a/hbasm/src/macros/asm.rs +++ /dev/null @@ -1,89 +0,0 @@ -//! Macros to generate [`crate::Assembler`] - -/// Incremental token-tree muncher to implement specific instruction -/// functions based on generic function for instruction type -macro_rules! impl_asm_opcodes { - ( // End case - $generic:ident - ($($param_i:ident: $param_ty:ty),*) - => [] - ) => {}; - - ( - $generic:ident - ($($param_i:ident: $param_ty:ty),*) - => [$opcode:ident, $($rest:tt)*] - ) => { - // Instruction-specific function - paste::paste! { - #[inline(always)] - pub fn [](&mut self, $($param_i: $param_ty),*) { - self.$generic(hbbytecode::opcode::$opcode, $($param_i),*) - } - } - - // And recurse! - macros::asm::impl_asm_opcodes!( - $generic($($param_i: $param_ty),*) - => [$($rest)*] - ); - }; -} - -/// Numeric value insert -macro_rules! impl_asm_insert { - // Immediate - this is trait-based, - // the insertion is delegated to its implementation - ($self:expr, $id:ident, I) => { - Imm::insert(&$id, $self) - }; - - // Length - cannot be more than 2048 - ($self:expr, $id:ident, L) => {{ - assert!($id <= 2048); - $self.buf.extend($id.to_le_bytes()) - }}; - - // Other numbers, just insert their bytes, little endian - ($self:expr, $id:ident, $_:ident) => { - $self.buf.extend($id.to_le_bytes()) - }; -} - -/// Implement assembler -macro_rules! impl_asm { - ( - $( - $ityn:ident - ($($param_i:ident: $param_ty:ident),* $(,)?) - => [$($opcode:ident),* $(,)?], - )* - ) => { - paste::paste! { - $( - // Opcode-generic functions specific for instruction types - pub fn [](&mut self, opcode: u8, $($param_i: macros::asm::ident_map_ty!($param_ty)),*) { - self.buf.push(opcode); - $(macros::asm::impl_asm_insert!(self, $param_i, $param_ty);)* - } - - // Generate opcode-specific functions calling the opcode-generic ones - macros::asm::impl_asm_opcodes!( - []($($param_i: macros::asm::ident_map_ty!($param_ty)),*) - => [$($opcode,)*] - ); - )* - } - }; -} - -/// Map operand type to Rust type -#[rustfmt::skip] -macro_rules! ident_map_ty { - (R) => { u8 }; // Register is just u8 - (I) => { impl Imm }; // Immediate is anything implementing the trait - (L) => { u16 }; // Copy count - ($id:ident) => { $id }; // Anything else → identity map -} - -pub(crate) use {ident_map_ty, impl_asm, impl_asm_insert, impl_asm_opcodes}; diff --git a/hbasm/src/macros/mod.rs b/hbasm/src/macros/mod.rs deleted file mode 100644 index 509f6be..0000000 --- a/hbasm/src/macros/mod.rs +++ /dev/null @@ -1,6 +0,0 @@ -//! And here the land of macros begin. -//! -//! They do not bite, really. Have you seen what Yandros is writing? - -pub mod asm; -pub mod text; diff --git a/hbasm/src/macros/text.rs b/hbasm/src/macros/text.rs deleted file mode 100644 index 89b360b..0000000 --- a/hbasm/src/macros/text.rs +++ /dev/null @@ -1,293 +0,0 @@ -//! Macros to generate text-code assembler at [`crate::text`] -// Refering in module which generates a module to that module — is that even legal? :D - -/// Generate text code based assembler -macro_rules! gen_text { - ( - $( - $ityn:ident - ($($param_i:ident: $param_ty:ident),* $(,)?) - => [$($opcode:ident),* $(,)?], - )* - ) => { - /// # Text assembler - /// Text assembler generated simply calls methods in the [`crate::Assembler`] type. - /// - /// # Syntax - /// ```text - /// instruction op1, op2, … - /// … - /// ``` - /// - Opcode names are lowercase - /// - Registers are prefixed with `r` followed by number - /// - Operands are separated by `,` - /// - Instructions are separated by either line feed or `;` (αυτό δεν είναι ερωτηματικό!) - /// - Labels are defined by their names followed by colon `label:` - /// - Labels are referenced simply by their names - /// - Immediates are numbers, can be negative, floats are not yet supported - pub mod text { - use { - crate::{ - Assembler, - macros::text::*, - }, - hashbrown::HashMap, - lasso::{Key, Rodeo, Spur}, - logos::{Lexer, Logos, Span}, - }; - - paste::paste!(literify::literify! { - /// Assembly token - #[derive(Clone, Copy, Debug, PartialEq, Eq, Logos)] - #[logos(extras = Rodeo)] - #[logos(skip r"[ \t\t]+")] - #[logos(skip r"-- .*")] - pub enum Token { - $($(#[token(~([<$opcode:lower>]), |_| hbbytecode::opcode::[<$opcode:upper>])])*)* - Opcode(u8), - - #[regex("[0-9]+", |l| l.slice().parse().ok())] - #[regex( - "-[0-9]+", - |lexer| { - Some(u64::from_ne_bytes(lexer.slice().parse::().ok()?.to_ne_bytes())) - }, - )] Integer(u64), - - #[regex( - "r[0-9]+", - |lexer| match lexer.slice()[1..].parse() { - Ok(n) => Some(n), - _ => None - }, - )] Register(u8), - - #[regex( - r"\p{XID_Start}\p{XID_Continue}*:", - |lexer| lexer.extras.get_or_intern(&lexer.slice()[..lexer.slice().len() - 1]), - )] Label(Spur), - - #[regex( - r"\p{XID_Start}\p{XID_Continue}*", - |lexer| lexer.extras.get_or_intern(lexer.slice()), - )] Symbol(Spur), - - #[token("\n")] - #[token(";")] ISep, - #[token(",")] PSep, - } - }); - - /// Type of error - #[derive(Copy, Clone, Debug, PartialEq, Eq)] - pub enum ErrorKind { - UnexpectedToken, - InvalidToken, - UnexpectedEnd, - InvalidSymbol, - } - - /// Text assembly error - #[derive(Clone, Debug, PartialEq, Eq)] - pub struct Error { - pub kind: ErrorKind, - pub span: Span, - } - - /// Parse code and insert instructions - pub fn assemble(asm: &mut Assembler, code: &str) -> Result<(), Error> { - pub struct TextAsm<'a> { - asm: &'a mut Assembler, - lexer: Lexer<'a, Token>, - symloc: HashMap, - } - - impl<'a> TextAsm<'a> { - fn next(&mut self) -> Result { - match self.lexer.next() { - Some(Ok(t)) => Ok(t), - Some(Err(())) => Err(ErrorKind::InvalidToken), - None => Err(ErrorKind::UnexpectedEnd), - } - } - - #[inline(always)] - fn run(&mut self) -> Result<(), ErrorKind> { - loop { - match self.lexer.next() { - // Got an opcode - Some(Ok(Token::Opcode(op))) => { - match op { - // Special-cased - hbbytecode::opcode::BRC => { - param_extract_itm!( - self, - p0: R, - p1: R, - p2: u8 - ); - - self.asm.i_param_bbb(op, p0, p1, p2); - }, - - // Take all the opcodes and match them to their corresponding functions - $( - #[allow(unreachable_patterns)] - $(hbbytecode::opcode::$opcode)|* => paste::paste!({ - param_extract_itm!(self, $($param_i: $param_ty),*); - self.asm.[](op, $($param_i),*); - }), - )* - - // Already matched in Logos, should not be able to obtain - // invalid opcode. - _ => unreachable!(), - } - } - // Insert label to table - Some(Ok(Token::Label(lbl))) => { - self.symloc.insert(lbl, self.asm.buf.len()); - } - // Instruction separator (LF, ;) - Some(Ok(Token::ISep)) => (), - Some(Ok(_)) => return Err(ErrorKind::UnexpectedToken), - Some(Err(())) => return Err(ErrorKind::InvalidToken), - None => return Ok(()), - } - } - } - } - - let mut asm = TextAsm { - asm, - lexer: Token::lexer(code), - symloc: HashMap::default(), - }; - - asm.run() - .map_err(|kind| Error { kind, span: asm.lexer.span() })?; - - // Walk table and substitute labels - // for their addresses - for &loc in &asm.asm.sub { - // Extract indices from the code and get addresses from table - let val = asm.symloc - .get( - &Spur::try_from_usize(bytemuck::pod_read_unaligned::( - &asm.asm.buf[loc..loc + core::mem::size_of::()]) as _ - ).unwrap() - ) - .ok_or(Error { kind: ErrorKind::InvalidSymbol, span: 0..0 })? - .to_le_bytes(); - - // New address - asm.asm.buf[loc..] - .iter_mut() - .zip(val) - .for_each(|(dst, src)| *dst = src); - } - - Ok(()) - } - - // Fun fact: this is a little hack - // It may slow the things a little bit down, but - // it made the macro to be made pretty nice. - // - // If you have any idea how to get rid of this, - // contributions are welcome :) - // I *likely* won't try anymore. - enum InternalImm { - Const(u64), - Named(Spur), - } - - impl $crate::Imm for InternalImm { - #[inline] - fn insert(&self, asm: &mut Assembler) { - match self { - // Constant immediate, just put it in - Self::Const(a) => a.insert(asm), - // Label - Self::Named(a) => { - // Insert to the sub table that substitution will be - // requested - asm.sub.insert(asm.buf.len()); - // Insert value from interner in place - asm.buf.extend((a.into_usize() as u64).to_le_bytes()); - }, - } - } - } - } - }; -} - -/// Extract item by pattern, otherwise return [`ErrorKind::UnexpectedToken`] -macro_rules! extract_pat { - ($self:expr, $pat:pat) => { - let $pat = $self.next()? - else { return Err(ErrorKind::UnexpectedToken) }; - }; -} - -/// Generate extract macro -macro_rules! gen_extract { - // Integer types have same body - ($($int:ident),* $(,)?) => { - /// Extract operand from code - macro_rules! extract { - // Register (require prefixing with r) - ($self:expr, R, $id:ident) => { - extract_pat!($self, Token::Register($id)); - }; - - ($self:expr, L, $id:ident) => { - extract_pat!($self, Token::Integer($id)); - if $id > 2048 { - return Err(ErrorKind::InvalidToken); - } - - let $id = u16::try_from($id).unwrap(); - }; - - // Immediate - ($self:expr, I, $id:ident) => { - let $id = match $self.next()? { - // Either straight up integer - Token::Integer(a) => InternalImm::Const(a), - // …or a label - Token::Symbol(a) => InternalImm::Named(a), - _ => return Err(ErrorKind::UnexpectedToken), - }; - }; - - // Get $int, if not fitting, the token is claimed invalid - $(($self:expr, $int, $id:ident) => { - extract_pat!($self, Token::Integer($id)); - let $id = $int::try_from($id).map_err(|_| ErrorKind::InvalidToken)?; - });*; - } - }; -} - -gen_extract!(u8, u16, u32); - -/// Parameter extract incremental token-tree muncher -/// -/// What else would it mean? -macro_rules! param_extract_itm { - ($self:expr, $($id:ident: $ty:ident)? $(, $($tt:tt)*)?) => { - // Extract pattern - $(extract!($self, $ty, $id);)? - $( - // Require operand separator - extract_pat!($self, Token::PSep); - // And go to the next (recursive) - // …munch munch… yummy token trees. - param_extract_itm!($self, $($tt)*); - )? - }; -} - -pub(crate) use {extract, extract_pat, gen_text, param_extract_itm}; diff --git a/hbasm/src/main.rs b/hbasm/src/main.rs deleted file mode 100644 index 8ce4f57..0000000 --- a/hbasm/src/main.rs +++ /dev/null @@ -1,56 +0,0 @@ -use std::io::Write; - -use hbasm::Assembler; - -use { - ariadne::{ColorGenerator, Label, Report, ReportKind, Source}, - std::{ - error::Error, - io::{stdin, Read}, - }, -}; - -fn main() -> Result<(), Box> { - let mut code = String::new(); - stdin().read_to_string(&mut code)?; - - let mut assembler = Assembler::default(); - if let Err(e) = hbasm::text::assemble(&mut assembler, &code) { - let mut colors = ColorGenerator::new(); - - let e_code = match e.kind { - hbasm::text::ErrorKind::UnexpectedToken => 1, - hbasm::text::ErrorKind::InvalidToken => 2, - hbasm::text::ErrorKind::UnexpectedEnd => 3, - hbasm::text::ErrorKind::InvalidSymbol => 4, - }; - let message = match e.kind { - hbasm::text::ErrorKind::UnexpectedToken => "This token is not expected!", - hbasm::text::ErrorKind::InvalidToken => "The token is not valid!", - hbasm::text::ErrorKind::UnexpectedEnd => { - "The assembler reached the end of input unexpectedly!" - } - hbasm::text::ErrorKind::InvalidSymbol => { - "This referenced symbol doesn't have a corresponding label!" - } - }; - let a = colors.next(); - - Report::build(ReportKind::Error, "engine_internal", e.span.clone().start) - .with_code(e_code) - .with_message(format!("{:?}", e.kind)) - .with_label( - Label::new(("engine_internal", e.span)) - .with_message(message) - .with_color(a), - ) - .finish() - .eprint(("engine_internal", Source::from(&code))) - .unwrap(); - } else { - assembler.finalise(); - std::io::stdout().lock().write_all(&assembler.buf).unwrap(); - } - - Ok(()) -} diff --git a/hbbytecode/Cargo.toml b/hbbytecode/Cargo.toml index fa9f970..ecfb1db 100644 --- a/hbbytecode/Cargo.toml +++ b/hbbytecode/Cargo.toml @@ -1,6 +1,7 @@ [package] name = "hbbytecode" version = "0.1.0" -edition = "2021" +edition = "2018" [dependencies] +with_builtin_macros = "0.0.3" diff --git a/hbbytecode/hbbytecode.h b/hbbytecode/hbbytecode.h index d59e002..5ede044 100644 --- a/hbbytecode/hbbytecode.h +++ b/hbbytecode/hbbytecode.h @@ -18,10 +18,11 @@ enum hbbc_Opcode: uint8_t { hbbc_Op_CMP , hbbc_Op_CMPU , hbbc_Op_DIR , hbbc_Op_NEG , hbbc_Op_NOT , hbbc_Op_ADDI , hbbc_Op_MULI , hbbc_Op_ANDI , hbbc_Op_ORI , hbbc_Op_XORI , hbbc_Op_SLI , hbbc_Op_SRI , hbbc_Op_SRSI , hbbc_Op_CMPI , hbbc_Op_CMPUI , hbbc_Op_CP , hbbc_Op_SWA , hbbc_Op_LI , - hbbc_Op_LD , hbbc_Op_ST , hbbc_Op_BMC , hbbc_Op_BRC , hbbc_Op_JMP , hbbc_Op_JAL , - hbbc_Op_JEQ , hbbc_Op_JNE , hbbc_Op_JLT , hbbc_Op_JGT , hbbc_Op_JLTU , hbbc_Op_JGTU , - hbbc_Op_ECALL , hbbc_Op_ADDF , hbbc_Op_SUBF , hbbc_Op_MULF , hbbc_Op_DIRF , hbbc_Op_FMAF , - hbbc_Op_NEGF , hbbc_Op_ITF , hbbc_Op_FTI , hbbc_Op_ADDFI , hbbc_Op_MULFI , + hhbc_Op_LRA , hbbc_Op_LD , hbbc_Op_ST , hbbc_Op_LDR , hhbc_Op_STR , hbbc_Op_BMC , + hbbc_Op_BRC , hbbc_Op_JMP , hbbc_Op_JMPR , hbbc_Op_JAL , hbbc_Op_JALR , hbbc_Op_JEQ , + hbbc_Op_JNE , hbbc_Op_JLT , hbbc_Op_JGT , hbbc_Op_JLTU , hbbc_Op_JGTU , hbbc_Op_ECALL , + hbbc_Op_ADDF , hbbc_Op_SUBF , hbbc_Op_MULF , hbbc_Op_DIRF , hbbc_Op_FMAF , hbbc_Op_NEGF , + hbbc_Op_ITF , hbbc_Op_FTI , hbbc_Op_ADDFI , hbbc_Op_MULFI , } typedef hbbc_Opcode; static_assert(sizeof(hbbc_Opcode) == 1); @@ -42,6 +43,12 @@ struct hbbc_ParamBBDH typedef hbbc_ParamBBDH; static_assert(sizeof(hbbc_ParamBBDH) == 96 / 8); +struct hbbc_ParamBBWH + { uint8_t _0; uint8_t _1; uint32_t _2; uint16_t _3; } + typedef hbbc_ParamBBWH; + static_assert(sizeof(hbbc_ParamBBWH) == 64 / 8); + + struct hbbc_ParamBBD { uint8_t _0; uint8_t _1; uint64_t _2; } typedef hbbc_ParamBBD; diff --git a/hbbytecode/instructions.in b/hbbytecode/instructions.in new file mode 100644 index 0000000..f9edb07 --- /dev/null +++ b/hbbytecode/instructions.in @@ -0,0 +1,64 @@ +// OPCODE, MNEMONIC, TYPE, DOC; + + 0, UN, N, "Cause an unreachable code trap" ; + 1, TX, N, "Termiante execution" ; + 2, NOP, N, "Do nothing" ; + + 3, ADD, RRR, "Addition" ; + 4, SUB, RRR, "Subtraction" ; + 5, MUL, RRR, "Multiplication" ; + 6, AND, RRR, "Bitand" ; + 7, OR, RRR, "Bitor" ; + 8, XOR, RRR, "Bitxor" ; + 9, SL, RRR, "Unsigned left bitshift" ; +10, SR, RRR, "Unsigned right bitshift" ; +11, SRS, RRR, "Signed right bitshift" ; +12, CMP, RRR, "Signed comparsion" ; +13, CMPU, RRR, "Unsigned comparsion" ; +14, DIR, RRRR, "Merged divide-remainder" ; +15, NOT, RR, "Logical negation" ; +16, ADDI, RRD, "Addition with immediate" ; +17, MULI, RRD, "Multiplication with immediate" ; +18, ANDI, RRD, "Bitand with immediate" ; +19, ORI, RRD, "Bitor with immediate" ; +20, XORI, RRD, "Bitxor with immediate" ; +21, SLI, RRW, "Unsigned left bitshift with immedidate"; +22, SRI, RRW, "Unsigned right bitshift with immediate"; +23, SRSI, RRW, "Signed right bitshift with immediate" ; +24, CMPI, RRD, "Signed compare with immediate" ; +25, CMPUI, RRD, "Unsigned compare with immediate" ; + +26, CP, RR, "Copy register" ; +27, SWA, RR, "Swap registers" ; +28, LI, RD, "Load immediate" ; +29, LRA, RRO, "Load relative address" ; +30, LD, RRAH, "Load from absolute address" ; +31, ST, RRAH, "Store to absolute address" ; +32, LDR, RROH, "Load from relative address" ; +33, STR, RROH, "Store to absolute address" ; +34, BMC, RRH, "Copy block of memory" ; +35, BRC, RRB, "Copy register block" ; + +36, JMP, A, "Absolute jump" ; +37, JMPR, O, "Relative jump" ; +38, JAL, RRA, "Linking absolute jump" ; +39, JALR, RRO, "Linking relative jump" ; +40, JEQ, RRP, "Branch on equal" ; +41, JNE, RRP, "Branch on nonequal" ; +42, JLT, RRP, "Branch on lesser-than (signed)" ; +43, JGT, RRP, "Branch on greater-than (signed)" ; +44, JLTU, RRP, "Branch on lesser-than (unsigned)" ; +45, JGTU, RRP, "Branch on greater-than (unsigned)" ; +46, ECALL, N, "Issue ecall trap" ; + +47, ADDF, RRR, "Floating addition" ; +48, SUBF, RRR, "Floating subtraction" ; +49, MULF, RRR, "Floating multiply" ; +50, DIRF, RRRR, "Merged floating divide-remainder" ; +51, FMAF, RRRR, "Fused floating multiply-add" ; +52, NEGF, RR, "Floating sign negation" ; +53, ITF, RR, "Int to float" ; +54, FTI, RR, "Float to int" ; + +55, ADDFI, RRD, "Floating addition with immediate" ; +56, MULFI, RRD, "Floating multiplication with immediate"; diff --git a/hbbytecode/src/gen_valider.rs b/hbbytecode/src/gen_valider.rs deleted file mode 100644 index e047aa6..0000000 --- a/hbbytecode/src/gen_valider.rs +++ /dev/null @@ -1,175 +0,0 @@ -//! Generate HoleyBytes code validator - -macro_rules! gen_valider { - ( - $( - $ityn:ident - ($($param_i:ident: $param_ty:ident),* $(,)?) - => [$($opcode:ident),* $(,)?], - )* - ) => { - #[allow(unreachable_code)] - pub mod valider { - //! Validate if program is sound to execute - - /// Program validation error kind - #[derive(Clone, Copy, Debug, PartialEq, Eq)] - pub enum ErrorKind { - /// Unknown opcode - InvalidInstruction, - /// VM doesn't implement this valid opcode - Unimplemented, - /// Attempted to copy over register boundary - RegisterArrayOverflow, - /// Program is not validly terminated - InvalidEnd, - /// Program misses magic - MissingMagic - } - - /// Error - #[derive(Clone, Copy, Debug, PartialEq, Eq)] - pub struct Error { - /// Kind - pub kind: ErrorKind, - /// Location in bytecode - pub index: usize, - } - - /// Perform bytecode validation. If it passes, the program should be - /// sound to execute. - pub fn validate(mut program: &[u8]) -> Result<(), Error> { - // Validate magic - if program.get(0..4) != Some(&0xAB1E0B_u32.to_le_bytes()) { - return Err(Error { - kind: ErrorKind::MissingMagic, - index: 0, - }); - } - - // Program has to end with 12 zeroes, if there is less than - // 12 bytes, program is invalid. - if program.len() < 12 { - return Err(Error { - kind: ErrorKind::InvalidEnd, - index: 0, - }); - } - - // Verify that program ends with 12 zeroes - for (index, item) in program.iter().enumerate().skip(program.len() - 12) { - if *item != 0 { - return Err(Error { - kind: ErrorKind::InvalidEnd, - index, - }); - } - } - - let start = program; - program = &program[4..]; - loop { - use crate::opcode::*; - program = match program { - // End of program - [] => return Ok(()), - - // Memory load/store cannot go out-of-bounds register array - // B B D1 D2 D3 D4 D5 D6 D7 D8 H1 H2 - [LD..=ST, reg, _, _, _, _, _, _, _, _, _, count_0, count_1, ..] - if usize::from(*reg) * 8 - + usize::from(u16::from_le_bytes([*count_0, *count_1])) - > 2048 => - { - return Err(Error { - kind: ErrorKind::RegisterArrayOverflow, - index: (program.as_ptr() as usize) - (start.as_ptr() as usize), - }); - } - - // Block register copy cannot go out-of-bounds register array - [BRC, src, dst, count, ..] - if src.checked_add(*count).is_none() - || dst.checked_add(*count).is_none() => - { - return Err(Error { - kind: ErrorKind::RegisterArrayOverflow, - index: (program.as_ptr() as usize) - (start.as_ptr() as usize), - }); - } - - $( - $crate::gen_valider::inst_chk!( - rest, $ityn, $($opcode),* - ) - )|* => rest, - - // The plebs - _ => { - return Err(Error { - kind: ErrorKind::InvalidInstruction, - index: (program.as_ptr() as usize) - (start.as_ptr() as usize), - }) - } - } - } - } - } - }; -} - -/// Generate instruction check pattern -macro_rules! inst_chk { - // Sadly this has hardcoded instruction types, - // as I cannot generate parts of patterns+ - - ($rest:ident, bbbb, $($opcode:ident),*) => { - // B B B B - [$($opcode)|*, _, _, _, _, $rest @ ..] - }; - - ($rest:ident, bbb, $($opcode:ident),*) => { - // B B B - [$($opcode)|*, _, _, _, $rest @ ..] - }; - - ($rest:ident, bbdh, $($opcode:ident),*) => { - // B B D1 D2 D3 D4 D5 D6 D7 D8 H1 H2 - [$($opcode)|*, _, _, _, _, _, _, _, _, _, _, _, _, $rest @ ..] - }; - - ($rest:ident, bbd, $($opcode:ident),*) => { - // B B D1 D2 D3 D4 D5 D6 D7 D8 - [$($opcode)|*, _, _, _, _, _, _, _, _, _, _, $rest @ ..] - }; - - ($rest:ident, bbw, $($opcode:ident),*) => { - // B B W1 W2 W3 W4 - [$($opcode)|*, _, _, _, _, _, _, $rest @ ..] - }; - - ($rest:ident, bb, $($opcode:ident),*) => { - // B B - [$($opcode)|*, _, _, $rest @ ..] - }; - - ($rest:ident, bd, $($opcode:ident),*) => { - // B D1 D2 D3 D4 D5 D6 D7 D8 - [$($opcode)|*, _, _, _, _, _, _, _, _, _, $rest @ ..] - }; - - ($rest:ident, d, $($opcode:ident),*) => { - // D1 D2 D3 D4 D5 D6 D7 D8 - [$($opcode)|*, _, _, _, _, _, _, _, _, $rest @ ..] - }; - - ($rest:ident, n, $($opcode:ident),*) => { - [$($opcode)|*, $rest @ ..] - }; - - ($_0:ident, $($_1:ident),*) => { - compile_error!("Invalid instruction type"); - } -} - -pub(crate) use {gen_valider, inst_chk}; diff --git a/hbbytecode/src/lib.rs b/hbbytecode/src/lib.rs index 6e63b95..06414f8 100644 --- a/hbbytecode/src/lib.rs +++ b/hbbytecode/src/lib.rs @@ -1,165 +1,91 @@ #![no_std] -mod gen_valider; +pub type OpR = u8; -macro_rules! constmod { - ($vis:vis $mname:ident($repr:ty) { - $(#![doc = $mdoc:literal])? - $($cname:ident = $val:expr $(,$doc:literal)?;)* - }) => { - $(#[doc = $mdoc])? - $vis mod $mname { +pub type OpA = u64; +pub type OpO = u32; +pub type OpP = u16; + +pub type OpB = u8; +pub type OpH = u16; +pub type OpW = u32; +pub type OpD = u64; + +/// # Safety +/// Has to be valid to be decoded from bytecode. +pub unsafe trait BytecodeItem {} +macro_rules! define_items { + ($($name:ident ($($item:ident),* $(,)?)),* $(,)?) => { + $( + #[repr(packed)] + pub struct $name($(pub $item),*); + unsafe impl BytecodeItem for $name {} + )* + }; +} + +define_items! { + OpsRR (OpR, OpR ), + OpsRRR (OpR, OpR, OpR ), + OpsRRRR (OpR, OpR, OpR, OpR), + OpsRRB (OpR, OpR, OpB ), + OpsRRH (OpR, OpR, OpH ), + OpsRRW (OpR, OpR, OpW ), + OpsRD (OpR, OpD ), + OpsRRD (OpR, OpR, OpD ), + OpsRRAH (OpR, OpR, OpA, OpH), + OpsRROH (OpR, OpR, OpO, OpH), + OpsRRO (OpR, OpR, OpO ), + OpsRRP (OpR, OpR, OpP ), +} + +unsafe impl BytecodeItem for OpA {} +unsafe impl BytecodeItem for OpB {} +unsafe impl BytecodeItem for OpO {} +unsafe impl BytecodeItem for () {} + +::with_builtin_macros::with_builtin! { + let $spec = include_from_root!("instructions.in") in { + /// Invoke macro with bytecode definition + /// + /// # Format + /// ```text + /// Opcode, Mnemonic, Type, Docstring; + /// ``` + /// + /// # Type + /// ```text + /// Types consist of letters meaning a single field + /// | Type | Size (B) | Meaning | + /// |:-----|:---------|:------------------------| + /// | N | 0 | Empty | + /// | R | 1 | Register | + /// | A | 8 | Absolute address | + /// | O | 4 | Relative address offset | + /// | P | 2 | Relative address offset | + /// | B | 1 | Immediate | + /// | H | 2 | Immediate | + /// | W | 4 | Immediate | + /// | D | 8 | Immediate | + /// ``` + #[macro_export] + macro_rules! invoke_with_def { + ($macro:path) => { + $macro! { $spec } + }; + } + } +} + +macro_rules! gen_opcodes { + ($($opcode:expr, $mnemonic:ident, $_ty:ident, $doc:literal;)*) => { + pub mod opcode { $( - $(#[doc = $doc])? - pub const $cname: $repr = $val; + #[doc = $doc] + pub const $mnemonic: u8 = $opcode; )* } }; } -#[allow(rustdoc::invalid_rust_codeblocks)] -/// Invoke macro with bytecode definition -/// # Input syntax -/// ```no_run -/// macro!( -/// INSTRUCTION_TYPE(p0: TYPE, p1: TYPE, …) -/// => [INSTRUCTION_A, INSTRUCTION_B, …], -/// … -/// ); -/// ``` -/// - Instruction type determines opcode-generic, instruction-type-specific -/// function. Name: `i_param_INSTRUCTION_TYPE` -/// - Per-instructions there will be generated opcode-specific functions calling the generic ones -/// - Operand types -/// - R: Register (u8) -/// - I: Immediate -/// - L: Memory load / store size (u16) -/// - Other types are identity-mapped -/// -/// # BRC special-case -/// BRC's 3rd operand is plain byte, not a register. Encoding is the same, but for some cases it may matter. -/// -/// Please, if you distinguish in your API between byte and register, special case this one. -/// -/// Sorry for that :( -#[macro_export] -macro_rules! invoke_with_def { - ($macro:path) => { - $macro!( - bbbb(p0: R, p1: R, p2: R, p3: R) - => [DIR, DIRF, FMAF], - bbb(p0: R, p1: R, p2: R) - => [ADD, SUB, MUL, AND, OR, XOR, SL, SR, SRS, CMP, CMPU, BRC, ADDF, SUBF, MULF], - bbdh(p0: R, p1: R, p2: I, p3: L) - => [LD, ST], - bbd(p0: R, p1: R, p2: I) - => [ADDI, MULI, ANDI, ORI, XORI, CMPI, CMPUI, BMC, JAL, JEQ, JNE, JLT, JGT, JLTU, - JGTU, ADDFI, MULFI], - bbw(p0: R, p1: R, p2: u32) - => [SLI, SRI, SRSI], - bb(p0: R, p1: R) - => [NEG, NOT, CP, SWA, NEGF, ITF, FTI], - bd(p0: R, p1: I) - => [LI], - d(p0: I) - => [JMP], - n() - => [UN, TX, NOP, ECALL], - ); - }; -} - -invoke_with_def!(gen_valider::gen_valider); - -constmod!(pub opcode(u8) { - //! Opcode constant module - - UN = 0, "N; Raises a trap"; - TX = 1, "N; Terminate execution"; - NOP = 2, "N; Do nothing"; - - ADD = 3, "BBB; #0 ← #1 + #2"; - SUB = 4, "BBB; #0 ← #1 - #2"; - MUL = 5, "BBB; #0 ← #1 × #2"; - AND = 6, "BBB; #0 ← #1 & #2"; - OR = 7, "BBB; #0 ← #1 | #2"; - XOR = 8, "BBB; #0 ← #1 ^ #2"; - SL = 9, "BBB; #0 ← #1 « #2"; - SR = 10, "BBB; #0 ← #1 » #2"; - SRS = 11, "BBB; #0 ← #1 » #2 (signed)"; - CMP = 12, "BBB; #0 ← #1 <=> #2"; - CMPU = 13, "BBB; #0 ← #1 <=> #2 (unsigned)"; - DIR = 14, "BBBB; #0 ← #2 / #3, #1 ← #2 % #3"; - NEG = 15, "BB; #0 ← -#1"; - NOT = 16, "BB; #0 ← !#1"; - - ADDI = 17, "BBD; #0 ← #1 + imm #2"; - MULI = 18, "BBD; #0 ← #1 × imm #2"; - ANDI = 19, "BBD; #0 ← #1 & imm #2"; - ORI = 20, "BBD; #0 ← #1 | imm #2"; - XORI = 21, "BBD; #0 ← #1 ^ imm #2"; - SLI = 22, "BBW; #0 ← #1 « imm #2"; - SRI = 23, "BBW; #0 ← #1 » imm #2"; - SRSI = 24, "BBW; #0 ← #1 » imm #2 (signed)"; - CMPI = 25, "BBD; #0 ← #1 <=> imm #2"; - CMPUI = 26, "BBD; #0 ← #1 <=> imm #2 (unsigned)"; - - CP = 27, "BB; Copy #0 ← #1"; - SWA = 28, "BB; Swap #0 and #1"; - LI = 29, "BD; #0 ← imm #1"; - LD = 30, "BBDB; #0 ← [#1 + imm #3], imm #4 bytes, overflowing"; - ST = 31, "BBDB; [#1 + imm #3] ← #0, imm #4 bytes, overflowing"; - BMC = 32, "BBD; [#0] ← [#1], imm #2 bytes"; - BRC = 33, "BBB; #0 ← #1, imm #2 registers"; - - JMP = 34, "D; Unconditional, non-linking absolute jump"; - JAL = 35, "BD; Copy PC to #0 and unconditional jump [#1 + imm #2]"; - JEQ = 36, "BBD; if #0 = #1 → jump imm #2"; - JNE = 37, "BBD; if #0 ≠ #1 → jump imm #2"; - JLT = 38, "BBD; if #0 < #1 → jump imm #2"; - JGT = 39, "BBD; if #0 > #1 → jump imm #2"; - JLTU = 40, "BBD; if #0 < #1 → jump imm #2 (unsigned)"; - JGTU = 41, "BBD; if #0 > #1 → jump imm #2 (unsigned)"; - ECALL = 42, "N; Issue system call"; - - ADDF = 43, "BBB; #0 ← #1 +. #2"; - SUBF = 44, "BBB; #0 ← #1 -. #2"; - MULF = 45, "BBB; #0 ← #1 +. #2"; - DIRF = 46, "BBBB; #0 ← #2 / #3, #1 ← #2 % #3"; - FMAF = 47, "BBBB; #0 ← (#1 * #2) + #3"; - NEGF = 48, "BB; #0 ← -#1"; - ITF = 49, "BB; #0 ← #1 as float"; - FTI = 50, "BB; #0 ← #1 as int"; - - ADDFI = 51, "BBD; #0 ← #1 +. imm #2"; - MULFI = 52, "BBD; #0 ← #1 *. imm #2"; -}); - -#[repr(packed)] -pub struct ParamBBBB(pub u8, pub u8, pub u8, pub u8); -#[repr(packed)] -pub struct ParamBBB(pub u8, pub u8, pub u8); -#[repr(packed)] -pub struct ParamBBDH(pub u8, pub u8, pub u64, pub u16); -#[repr(packed)] -pub struct ParamBBD(pub u8, pub u8, pub u64); -#[repr(packed)] -pub struct ParamBBW(pub u8, pub u8, pub u32); -#[repr(packed)] -pub struct ParamBB(pub u8, pub u8); -#[repr(packed)] -pub struct ParamBD(pub u8, pub u64); - -/// # Safety -/// Has to be valid to be decoded from bytecode. -pub unsafe trait ProgramVal {} -unsafe impl ProgramVal for ParamBBBB {} -unsafe impl ProgramVal for ParamBBB {} -unsafe impl ProgramVal for ParamBBDH {} -unsafe impl ProgramVal for ParamBBD {} -unsafe impl ProgramVal for ParamBBW {} -unsafe impl ProgramVal for ParamBB {} -unsafe impl ProgramVal for ParamBD {} -unsafe impl ProgramVal for u64 {} -unsafe impl ProgramVal for u8 {} // Opcode -unsafe impl ProgramVal for () {} +invoke_with_def!(gen_opcodes); diff --git a/hbvm/src/lib.rs b/hbvm/src/lib.rs index 5da24b1..2c4391c 100644 --- a/hbvm/src/lib.rs +++ b/hbvm/src/lib.rs @@ -14,7 +14,7 @@ #![cfg_attr(feature = "nightly", feature(fn_align))] #![warn(missing_docs)] -use mem::{Memory, Address}; +use mem::{Address, Memory}; #[cfg(feature = "alloc")] extern crate alloc; @@ -23,8 +23,8 @@ pub mod mem; pub mod value; mod bmc; -mod vmrun; mod utils; +mod vmrun; use {bmc::BlockCopier, value::Value}; diff --git a/hbvm/src/main.rs b/hbvm/src/main.rs deleted file mode 100644 index d23e994..0000000 --- a/hbvm/src/main.rs +++ /dev/null @@ -1,83 +0,0 @@ -use hbvm::mem::Address; - -use { - hbbytecode::valider::validate, - hbvm::{ - mem::{ - softpaging::{paging::PageTable, HandlePageFault, PageSize, SoftPagedMem}, - MemoryAccessReason, - }, - Vm, - }, - std::io::{stdin, Read}, -}; - -fn main() -> Result<(), Box> { - let mut prog = vec![]; - stdin().read_to_end(&mut prog)?; - - if let Err(e) = validate(&prog) { - eprintln!("Program validation error: {e:?}"); - return Ok(()); - } else { - unsafe { - let mut vm = Vm::<_, 0>::new( - SoftPagedMem::<_, true> { - pf_handler: TestTrapHandler, - program: &prog, - root_pt: Box::into_raw(Default::default()), - icache: Default::default(), - }, - Address::new(4), - ); - let data = { - let ptr = std::alloc::alloc_zeroed(std::alloc::Layout::from_size_align_unchecked( - 4096, 4096, - )); - if ptr.is_null() { - panic!("Alloc error tbhl"); - } - ptr - }; - - vm.memory - .map( - data, - Address::new(8192), - hbvm::mem::softpaging::paging::Permission::Write, - PageSize::Size4K, - ) - .unwrap(); - - println!("Program interrupt: {:?}", vm.run()); - println!("{:?}", vm.registers); - - std::alloc::dealloc( - data, - std::alloc::Layout::from_size_align_unchecked(4096, 4096), - ); - vm.memory.unmap(Address::new(8192)).unwrap(); - let _ = Box::from_raw(vm.memory.root_pt); - } - } - Ok(()) -} - -pub fn time() -> u32 { - 9 -} - -#[derive(Default)] -struct TestTrapHandler; -impl HandlePageFault for TestTrapHandler { - fn page_fault( - &mut self, - _: MemoryAccessReason, - _: &mut PageTable, - _: Address, - _: PageSize, - _: *mut u8, - ) -> bool { - false - } -} diff --git a/hbvm/src/mem/addr.rs b/hbvm/src/mem/addr.rs index ea95ac7..0191417 100644 --- a/hbvm/src/mem/addr.rs +++ b/hbvm/src/mem/addr.rs @@ -23,6 +23,18 @@ impl Address { Self(self.0.saturating_sub(rhs.cast_u64())) } + /// Wrapping integer addition. Computes self + rhs, wrapping the numeric bounds. + #[inline] + pub fn wrapping_add(self, rhs: T) -> Self { + Self(self.0.wrapping_add(rhs.cast_u64())) + } + + /// Wrapping integer subtraction. Computes self + rhs, wrapping the numeric bounds. + #[inline] + pub fn wrapping_sub(self, rhs: T) -> Self { + Self(self.0.wrapping_sub(rhs.cast_u64())) + } + /// Cast or if smaller, truncate to [`usize`] pub fn truncate_usize(self) -> usize { self.0 as _ diff --git a/hbvm/src/mem/mod.rs b/hbvm/src/mem/mod.rs index bba5d13..f8d010d 100644 --- a/hbvm/src/mem/mod.rs +++ b/hbvm/src/mem/mod.rs @@ -2,11 +2,11 @@ pub mod softpaging; -mod addr; +pub(crate) mod addr; pub use addr::Address; -use {crate::utils::impl_display, hbbytecode::ProgramVal}; +use {crate::utils::impl_display, hbbytecode::BytecodeItem}; /// Load-store memory access pub trait Memory { @@ -36,13 +36,13 @@ pub trait Memory { /// /// # Safety /// - Data read have to be valid - unsafe fn prog_read(&mut self, addr: Address) -> Option; + unsafe fn prog_read(&mut self, addr: Address) -> Option; /// Read from program memory to exectue /// /// # Safety /// - You have to be really sure that these bytes are there, understand? - unsafe fn prog_read_unchecked(&mut self, addr: Address) -> T; + unsafe fn prog_read_unchecked(&mut self, addr: Address) -> T; } /// Unhandled load access trap diff --git a/hbvm/src/vmrun.rs b/hbvm/src/vmrun.rs index b0b79d1..76c2bb4 100644 --- a/hbvm/src/vmrun.rs +++ b/hbvm/src/vmrun.rs @@ -2,8 +2,6 @@ //! //! Have fun -use crate::mem::Address; - use { super::{ bmc::BlockCopier, @@ -11,9 +9,11 @@ use { value::{Value, ValueVariant}, Vm, VmRunError, VmRunOk, }, + crate::mem::{addr::AddressOp, Address}, core::{cmp::Ordering, mem::size_of, ops}, hbbytecode::{ - ParamBB, ParamBBB, ParamBBBB, ParamBBD, ParamBBDH, ParamBBW, ParamBD, ProgramVal, + BytecodeItem, OpA, OpO, OpsRD, OpsRR, OpsRRAH, OpsRRB, OpsRRD, OpsRRH, OpsRRO, OpsRROH, + OpsRRP, OpsRRR, OpsRRRR, OpsRRW, }, }; @@ -70,14 +70,14 @@ where XOR => self.binary_op::(ops::BitXor::bitxor), SL => self.binary_op(|l, r| u64::wrapping_shl(l, r as u32)), SR => self.binary_op(|l, r| u64::wrapping_shr(l, r as u32)), - SRS => self.binary_op(|l, r| i64::wrapping_shl(l, r as u32)), + SRS => self.binary_op(|l: u64, r| i64::wrapping_shl(l as i64, r as u32) as u64), CMP => { // Compare a0 <=> a1 // < → 0 // > → 1 // = → 2 - let ParamBBB(tg, a0, a1) = self.decode(); + let OpsRRR(tg, a0, a1) = self.decode(); self.write_reg( tg, self.read_reg(a0) @@ -89,7 +89,7 @@ where } CMPU => { // Unsigned comparsion - let ParamBBB(tg, a0, a1) = self.decode(); + let OpsRRR(tg, a0, a1) = self.decode(); self.write_reg( tg, self.read_reg(a0) @@ -101,23 +101,12 @@ where } NOT => { // Logical negation - let ParamBB(tg, a0) = self.decode(); + let OpsRR(tg, a0) = self.decode(); self.write_reg(tg, !self.read_reg(a0).cast::()); } - NEG => { - // Bitwise negation - let ParamBB(tg, a0) = self.decode(); - self.write_reg( - tg, - match self.read_reg(a0).cast::() { - 0 => 1_u64, - _ => 0, - }, - ); - } DIR => { // Fused Division-Remainder - let ParamBBBB(dt, rt, a0, a1) = self.decode(); + let OpsRRRR(dt, rt, a0, a1) = self.decode(); let a0 = self.read_reg(a0).cast::(); let a1 = self.read_reg(a1).cast::(); self.write_reg(dt, a0.checked_div(a1).unwrap_or(u64::MAX)); @@ -132,7 +121,7 @@ where SRI => self.binary_op_ims(u64::wrapping_shr), SRSI => self.binary_op_ims(i64::wrapping_shr), CMPI => { - let ParamBBD(tg, a0, imm) = self.decode(); + let OpsRRD(tg, a0, imm) = self.decode(); self.write_reg( tg, self.read_reg(a0) @@ -142,16 +131,16 @@ where ); } CMPUI => { - let ParamBBD(tg, a0, imm) = self.decode(); + let OpsRRD(tg, a0, imm) = self.decode(); self.write_reg(tg, self.read_reg(a0).cast::().cmp(&imm) as i64); } CP => { - let ParamBB(tg, a0) = self.decode(); + let OpsRR(tg, a0) = self.decode(); self.write_reg(tg, self.read_reg(a0)); } SWA => { // Swap registers - let ParamBB(r0, r1) = self.decode(); + let OpsRR(r0, r1) = self.decode(); match (r0, r1) { (0, 0) => (), (dst, 0) | (0, dst) => self.write_reg(dst, 0_u64), @@ -164,12 +153,16 @@ where } } LI => { - let ParamBD(tg, imm) = self.decode(); + let OpsRD(tg, imm) = self.decode(); self.write_reg(tg, imm); } + LRA => { + let OpsRRO(tg, reg, imm) = self.decode(); + self.write_reg(tg, self.rel_addr(reg, imm).get()); + } LD => { // Load. If loading more than register size, continue on adjecent registers - let ParamBBDH(dst, base, off, count) = self.decode(); + let OpsRRAH(dst, base, off, count) = self.decode(); let n: u8 = match dst { 0 => 1, _ => 0, @@ -181,29 +174,67 @@ where .as_mut_ptr() .add(usize::from(dst) + usize::from(n)) .cast(), - usize::from(count).saturating_sub(n.into()), + usize::from(count).wrapping_sub(n.into()), )?; } ST => { // Store. Same rules apply as to LD - let ParamBBDH(dst, base, off, count) = self.decode(); + let OpsRRAH(dst, base, off, count) = self.decode(); self.memory.store( self.ldst_addr_uber(dst, base, off, count, 0)?, self.registers.as_ptr().add(usize::from(dst)).cast(), count.into(), )?; } + LDR => { + let OpsRROH(dst, base, off, count) = self.decode(); + let n: u8 = match dst { + 0 => 1, + _ => 0, + }; + + self.memory.load( + self.ldst_addr_uber( + dst, + base, + u64::from(off).wrapping_add(self.pc.get()), + count, + n, + )?, + self.registers + .as_mut_ptr() + .add(usize::from(dst) + usize::from(n)) + .cast(), + usize::from(count).wrapping_sub(n.into()), + )?; + } + STR => { + let OpsRROH(dst, base, off, count) = self.decode(); + self.memory.store( + self.ldst_addr_uber( + dst, + base, + u64::from(off).wrapping_add(self.pc.get()), + count, + 0, + )?, + self.registers.as_ptr().add(usize::from(dst)).cast(), + count.into(), + )?; + } BMC => { + const INS_SIZE: usize = size_of::() + 1; + // Block memory copy match if let Some(copier) = &mut self.copier { // There is some copier, poll. copier.poll(&mut self.memory) } else { // There is none, make one! - let ParamBBD(src, dst, count) = self.decode(); + let OpsRRH(src, dst, count) = self.decode(); // So we are still on BMC on next cycle - self.pc -= size_of::() + 1; + self.pc -= INS_SIZE; self.copier = Some(BlockCopier::new( Address::new(self.read_reg(src).cast()), @@ -219,12 +250,12 @@ where // We are done, shift program counter core::task::Poll::Ready(Ok(())) => { self.copier = None; - self.pc += size_of::() + 1; + self.pc += INS_SIZE; } // Error, shift program counter (for consistency) // and yield error core::task::Poll::Ready(Err(e)) => { - self.pc += size_of::() + 1; + self.pc += INS_SIZE; return Err(e.into()); } // Not done yet, proceed to next cycle @@ -233,7 +264,7 @@ where } BRC => { // Block register copy - let ParamBBB(src, dst, count) = self.decode(); + let OpsRRB(src, dst, count) = self.decode(); if src.checked_add(count).is_none() || dst.checked_add(count).is_none() { return Err(VmRunError::RegOutOfBounds); } @@ -244,21 +275,25 @@ where usize::from(count), ); } - JMP => self.pc = Address::new(self.decode::()), + JMP => self.pc = Address::new(self.decode::()), + JMPR => self.pc = self.pc.wrapping_add(self.decode::()), JAL => { // Jump and link. Save PC after this instruction to // specified register and jump to reg + offset. - let ParamBBD(save, reg, offset) = self.decode(); + let OpsRRW(save, reg, offset) = self.decode(); self.write_reg(save, self.pc.get()); - self.pc = - Address::new(self.read_reg(reg).cast::().saturating_add(offset)); + self.pc = Address::new( + self.read_reg(reg).cast::().wrapping_add(offset.into()), + ); } // Conditional jumps, jump only to immediates JEQ => self.cond_jmp::(Ordering::Equal), JNE => { - let ParamBBD(a0, a1, jt) = self.decode(); + let OpsRRP(a0, a1, ja) = self.decode(); if self.read_reg(a0).cast::() != self.read_reg(a1).cast::() { - self.pc = Address::new(jt); + self.pc = Address::new( + ((self.pc.get() as i64).wrapping_add(ja as i64)) as u64, + ) } } JLT => self.cond_jmp::(Ordering::Less), @@ -278,14 +313,14 @@ where SUBF => self.binary_op::(ops::Sub::sub), MULF => self.binary_op::(ops::Mul::mul), DIRF => { - let ParamBBBB(dt, rt, a0, a1) = self.decode(); + let OpsRRRR(dt, rt, a0, a1) = self.decode(); let a0 = self.read_reg(a0).cast::(); let a1 = self.read_reg(a1).cast::(); self.write_reg(dt, a0 / a1); self.write_reg(rt, a0 % a1); } FMAF => { - let ParamBBBB(dt, a0, a1, a2) = self.decode(); + let OpsRRRR(dt, a0, a1, a2) = self.decode(); self.write_reg( dt, self.read_reg(a0).cast::() * self.read_reg(a1).cast::() @@ -293,15 +328,15 @@ where ); } NEGF => { - let ParamBB(dt, a0) = self.decode(); + let OpsRR(dt, a0) = self.decode(); self.write_reg(dt, -self.read_reg(a0).cast::()); } ITF => { - let ParamBB(dt, a0) = self.decode(); + let OpsRR(dt, a0) = self.decode(); self.write_reg(dt, self.read_reg(a0).cast::() as f64); } FTI => { - let ParamBB(dt, a0) = self.decode(); + let OpsRR(dt, a0) = self.decode(); self.write_reg(dt, self.read_reg(a0).cast::() as i64); } ADDFI => self.binary_op_imm::(ops::Add::add), @@ -321,7 +356,7 @@ where /// Decode instruction operands #[inline(always)] - unsafe fn decode(&mut self) -> T { + unsafe fn decode(&mut self) -> T { let pc1 = self.pc + 1_u64; let data = self.memory.prog_read_unchecked::(pc1 as _); self.pc += 1 + size_of::(); @@ -331,7 +366,7 @@ where /// Perform binary operating over two registers #[inline(always)] unsafe fn binary_op(&mut self, op: impl Fn(T, T) -> T) { - let ParamBBB(tg, a0, a1) = self.decode(); + let OpsRRR(tg, a0, a1) = self.decode(); self.write_reg( tg, op(self.read_reg(a0).cast::(), self.read_reg(a1).cast::()), @@ -341,7 +376,7 @@ where /// Perform binary operation over register and immediate #[inline(always)] unsafe fn binary_op_imm(&mut self, op: impl Fn(T, T) -> T) { - let ParamBBD(tg, reg, imm) = self.decode(); + let OpsRRD(tg, reg, imm) = self.decode(); self.write_reg( tg, op(self.read_reg(reg).cast::(), Value::from(imm).cast::()), @@ -351,36 +386,44 @@ where /// Perform binary operation over register and shift immediate #[inline(always)] unsafe fn binary_op_ims(&mut self, op: impl Fn(T, u32) -> T) { - let ParamBBW(tg, reg, imm) = self.decode(); + let OpsRRW(tg, reg, imm) = self.decode(); self.write_reg(tg, op(self.read_reg(reg).cast::(), imm)); } - /// Jump at `#3` if ordering on `#0 <=> #1` is equal to expected + /// Compute address relative to program counter an register value + #[inline(always)] + fn rel_addr(&self, reg: u8, imm: impl AddressOp) -> Address { + self.pc + .wrapping_add(self.read_reg(reg).cast::()) + .wrapping_add(imm) + } + + /// Jump at `PC + #3` if ordering on `#0 <=> #1` is equal to expected #[inline(always)] unsafe fn cond_jmp(&mut self, expected: Ordering) { - let ParamBBD(a0, a1, ja) = self.decode(); + let OpsRRP(a0, a1, ja) = self.decode(); if self .read_reg(a0) .cast::() .cmp(&self.read_reg(a1).cast::()) == expected { - self.pc = Address::new(ja); + self.pc = Address::new(((self.pc.get() as i64).wrapping_add(ja as i64)) as u64); } } /// Read register #[inline(always)] - unsafe fn read_reg(&self, n: u8) -> Value { - *self.registers.get_unchecked(n as usize) + fn read_reg(&self, n: u8) -> Value { + unsafe { *self.registers.get_unchecked(n as usize) } } /// Write a register. /// Writing to register 0 is no-op. #[inline(always)] - unsafe fn write_reg(&mut self, n: u8, value: impl Into) { + fn write_reg(&mut self, n: u8, value: impl Into) { if n != 0 { - *self.registers.get_unchecked_mut(n as usize) = value.into(); + unsafe { *self.registers.get_unchecked_mut(n as usize) = value.into() }; } } diff --git a/hbxrt/Cargo.toml b/hbxrt/Cargo.toml new file mode 100644 index 0000000..d6b1792 --- /dev/null +++ b/hbxrt/Cargo.toml @@ -0,0 +1,7 @@ +[package] +name = "hbxrt" +version = "0.1.0" +edition = "2021" + +[dependencies] +hbvm.path = "../hbvm" diff --git a/hbxrt/src/main.rs b/hbxrt/src/main.rs new file mode 100644 index 0000000..8f5a021 --- /dev/null +++ b/hbxrt/src/main.rs @@ -0,0 +1,11 @@ +use std::io::{stdin, Read}; + +/// Holey Bytes Experimental Runtime + +fn main() -> Result<(), Box> { + let mut prog = vec![]; + stdin().read_to_end(&mut prog)?; + + eprintln!("WARNING! Bytecode valider has not been yet implemented and running program can lead to undefiend behaviour."); + Ok(()) +} diff --git a/spec.md b/spec.md index 6aee921..1fc7dd6 100644 --- a/spec.md +++ b/spec.md @@ -148,6 +148,12 @@ |:------:|:----:|:--------------:| | 29 | LI | Load immediate | +### Load relative address +- Type BBW +| Opcode | Name | Action | +|:------:|:----:|:-----------------------:| +| 30 | LRA | `#0 ← #1 + imm #2 + PC` | + ## Memory operations - Type BBDH - If loaded/store value exceeds one register size, continue accessing following registers @@ -155,8 +161,15 @@ ### Load / Store | Opcode | Name | Action | |:------:|:----:|:---------------------------------------:| -| 30 | LD | `#0 ← [#1 + imm #3], copy imm #4 bytes` | -| 31 | ST | `[#1 + imm #3] ← #0, copy imm #4 bytes` | +| 31 | LD | `#0 ← [#1 + imm #2], copy imm #3 bytes` | +| 32 | ST | `[#1 + imm #2] ← #0, copy imm #3 bytes` | + +### PC relative Load / Store +- Type BBDW +| Opcode | Name | Action | +|:------:|:----:|:--------------------------------------------:| +| 33 | LDR | `#0 ← [#1 + imm #2 + PC], copy imm #3 bytes` | +| 34 | STR | `[#1 + imm #2 + PC] ← #0, copy imm #3 bytes` | ## Block copy - Block copy source and target can overlap @@ -166,7 +179,7 @@ | Opcode | Name | Action | |:------:|:----:|:--------------------------------:| -| 32 | BMC | `[#1] ← [#0], copy imm #2 bytes` | +| 35 | BMC | `[#1] ← [#0], copy imm #2 bytes` | ### Register copy - Type BBB @@ -174,42 +187,44 @@ | Opcode | Name | Action | |:------:|:----:|:--------------------------------:| -| 33 | BRC | `#1 ← #0, copy imm #2 registers` | +| 36 | BRC | `#1 ← #0, copy imm #2 registers` | ## Control flow ### Unconditional jump - Type D -| Opcode | Name | Action | -|:------:|:----:|:-------------------------------:| -| 34 | JMP | Unconditional, non-linking jump | +| Opcode | Name | Action | +|:------:|:----:|:-------------------------------------------:| +| 37 | JMP | Unconditional, non-linking jump | +| 38 | JMPR | Jump at address relative to program counter | ### Unconditional linking jump - Type BBD -| Opcode | Name | Action | -|:------:|:----:|:--------------------------------------------------:| -| 35 | JAL | Save PC past JAL to `#0` and jump at `#1 + imm #2` | +| Opcode | Name | Action | +|:------:|:----:|:-------------------------------------------------------:| +| 39 | JAL | Save PC past JAL to `#0` and jump at `#1 + imm #2` | +| 40 | JALR | Save PC past JAL to `#0` and jump at `#1 + imm #2 + PC` | ### Conditional jumps -- Type BBD -- Jump at `imm #2` if `#0 #1` +- Type BBH +- Jump at `PC + imm #2` if `#0 #1` | Opcode | Name | Comparsion | |:------:|:----:|:------------:| -| 36 | JEQ | = | -| 37 | JNE | ≠ | -| 38 | JLT | < (signed) | -| 39 | JGT | > (signed) | -| 40 | JLTU | < (unsigned) | -| 41 | JGTU | > (unsigned) | +| 41 | JEQ | = | +| 42 | JNE | ≠ | +| 43 | JLT | < (signed) | +| 44 | JGT | > (signed) | +| 45 | JLTU | < (unsigned) | +| 46 | JGTU | > (unsigned) | ### Environment call - Type N | Opcode | Name | Action | |:------:|:-----:|:-------------------------------------:| -| 42 | ECALL | Cause an trap to the host environment | +| 47 | ECALL | Cause an trap to the host environment | ## Floating point operations - Type BBB @@ -217,29 +232,29 @@ | Opcode | Name | Action | |:------:|:----:|:--------------:| -| 43 | ADDF | Addition | -| 44 | SUBF | Subtraction | -| 45 | MULF | Multiplication | +| 48 | ADDF | Addition | +| 49 | SUBF | Subtraction | +| 50 | MULF | Multiplication | ### Division-remainder - Type BBBB | Opcode | Name | Action | |:------:|:----:|:-------------------------:| -| 46 | DIRF | Same as for integer `DIR` | +| 51 | DIRF | Same as for integer `DIR` | ### Fused Multiply-Add - Type BBBB | Opcode | Name | Action | |:------:|:----:|:---------------------:| -| 47 | FMAF | `#0 ← (#1 * #2) + #3` | +| 52 | FMAF | `#0 ← (#1 * #2) + #3` | ### Negation - Type BB | Opcode | Name | Action | |:------:|:----:|:----------:| -| 48 | NEGF | `#0 ← -#1` | +| 53 | NEGF | `#0 ← -#1` | ### Conversion - Type BB @@ -248,8 +263,8 @@ | Opcode | Name | Action | |:------:|:----:|:------------:| -| 49 | ITF | Int to Float | -| 50 | FTI | Float to Int | +| 54 | ITF | Int to Float | +| 55 | FTI | Float to Int | ## Floating point immediate operations - Type BBD @@ -257,8 +272,8 @@ | Opcode | Name | Action | |:------:|:-----:|:--------------:| -| 51 | ADDFI | Addition | -| 52 | MULFI | Multiplication | +| 56 | ADDFI | Addition | +| 57 | MULFI | Multiplication | # Registers - There is 255 registers + one zero register (with index 0)