Add assembler

pull/1/head
trivernis 5 years ago
commit 7f2e49e523

5
.gitignore vendored

@ -0,0 +1,5 @@
/target
**/*.rs.bk
.idea
*.asm
*.sbc

359
Cargo.lock generated

@ -0,0 +1,359 @@
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const T_NOP: u8 = 0x00;
const T_EXIT: u8 = 0x01;
const T_SET: u8 = 0x02;
const T_COPY: u8 = 0x03;
const T_LOAD: u8 = 0x04;
const T_CLEAR: u8 = 0x05;
const T_WRITE: u8 = 0x06;
const T_LABEL: u8 = 0x07;
const T_GOTO: u8 = 0x08;
const T_ADD: u8 = 0x10;
const T_SUB: u8 = 0x11;
const T_MUL: u8 = 0x12;
const T_DIV: u8 = 0x13;
const T_MOD: u8 = 0x14;
const T_LSH: u8 = 0x15;
const T_RSH: u8 = 0x16;
const T_JG: u8 = 0x20;
const T_JL: u8 = 0x21;
const T_JE: u8 = 0x22;
const T_PAUSE: u8 = 0xF0;
const T_CMD: u8 = 0xF1;
pub trait Token {
fn to_bytecode(&self) -> Vec<u8>;
}
pub struct NopToken;
impl Token for NopToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_NOP]
}
}
pub struct ExitToken {
pub register: u8,
}
impl Token for ExitToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_EXIT, self.register]
}
}
pub struct SetToken {
pub value: u8,
pub register: u8,
}
impl Token for SetToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_SET, self.value, self.register]
}
}
pub struct CopyToken {
pub register_1: u8,
pub register_2: u8,
}
impl Token for CopyToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_COPY, self.register_1, self.register_2]
}
}
pub struct LoadToken;
impl Token for LoadToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_LOAD]
}
}
pub struct ClearToken {
pub register: u8,
}
impl Token for ClearToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_CLEAR, self.register]
}
}
pub struct WriteToken;
impl Token for WriteToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_WRITE]
}
}
pub struct LabelToken;
impl Token for LabelToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_LABEL]
}
}
pub struct GotoToken;
impl Token for GotoToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_GOTO]
}
}
pub struct AddToken;
impl Token for AddToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_ADD]
}
}
pub struct SubToken;
impl Token for SubToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_SUB]
}
}
pub struct MulToken;
impl Token for MulToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_MUL]
}
}
pub struct DivToken;
impl Token for DivToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_DIV]
}
}
pub struct ModToken;
impl Token for ModToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_MOD]
}
}
pub struct LshToken;
impl Token for LshToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_LSH]
}
}
pub struct RshToken;
impl Token for RshToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_RSH]
}
}
pub struct JgToken;
impl Token for JgToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_JG]
}
}
pub struct JlToken;
impl Token for JlToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_JL]
}
}
pub struct JeToken;
impl Token for JeToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_JE]
}
}
pub struct PauseToken;
impl Token for PauseToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_PAUSE]
}
}
pub struct CmdToken;
impl Token for CmdToken {
fn to_bytecode(&self) -> Vec<u8> {
vec![T_CMD]
}
}

@ -0,0 +1,84 @@
use ledstrip_vm::asm_tokens;
use ledstrip_vm::asm_tokens::{
AddToken, ClearToken, CmdToken, CopyToken, DivToken, ExitToken, GotoToken, JeToken, JgToken,
JlToken, LabelToken, LoadToken, LshToken, ModToken, MulToken, PauseToken, RshToken, SetToken,
SubToken, Token, WriteToken,
};
use ledstrip_vm::registers::get_register_by_name;
use rayon::prelude::*;
use std::fs::{read_to_string, File};
use std::io;
use std::io::{BufRead, BufReader, BufWriter, Read, Write};
use structopt::StructOpt;
macro_rules! some_box {
($expr:expr) => {
Some(Box::new($expr))
};
}
#[derive(StructOpt, Debug)]
struct Opts {
#[structopt(short = "i", name = "input")]
input_file: String,
#[structopt(short = "o", name = "output")]
output_file: String,
}
fn main() -> io::Result<()> {
let opts: Opts = Opts::from_args();
let contents = read_to_string(opts.input_file)?;
let f = File::create(opts.output_file)?;
let mut writer = BufWriter::new(f);
contents
.lines()
.map(|line| get_token(line))
.filter_map(|token| Some(token?.to_bytecode()))
.for_each(|code| {
writer.write(&code);
});
Ok(())
}
fn get_token(line: &str) -> Option<Box<dyn Token>> {
let mut instr_parts = line.split_whitespace();
match instr_parts.next()? {
"exit" => Some(Box::new(ExitToken {
register: get_register_by_name(instr_parts.next()?)?,
})),
"set" => some_box!(SetToken {
value: instr_parts
.next()?
.parse::<u8>()
.expect("Failed to parse the value into a u8."),
register: get_register_by_name(instr_parts.next()?)?,
}),
"copy" => some_box!(CopyToken {
register_1: get_register_by_name(instr_parts.next()?)?,
register_2: get_register_by_name(instr_parts.next()?)?,
}),
"load" => some_box!(LoadToken),
"clear" => some_box!(ClearToken {
register: get_register_by_name(instr_parts.next()?)?,
}),
"write" => some_box!(WriteToken),
"label" => some_box!(LabelToken),
"goto" => some_box!(GotoToken),
"add" => some_box!(AddToken),
"sub" => some_box!(SubToken),
"mul" => some_box!(MulToken),
"div" => some_box!(DivToken),
"mod" => some_box!(ModToken),
"lsh" => some_box!(LshToken),
"rsh" => some_box!(RshToken),
"jg" => some_box!(JgToken),
"jl" => some_box!(JlToken),
"je" => some_box!(JeToken),
"pause" => some_box!(PauseToken),
"cmd" => some_box!(CmdToken),
_ => None,
}
}

@ -0,0 +1,2 @@
pub mod asm_tokens;
pub mod registers;

@ -0,0 +1,28 @@
pub const RCS: u8 = 0x01;
pub const RCR: u8 = 0x02;
pub const RCG: u8 = 0x03;
pub const RCB: u8 = 0x04;
pub const RCD: u8 = 0x05;
pub const RGP: u8 = 0x06;
pub const RGI: u8 = 0x07;
pub const RGO: u8 = 0x08;
pub const RGL: u8 = 0x09;
/// Maps a register name to the bytecode value
pub fn get_register_by_name(name: &str) -> Option<u8> {
let item = [
("rcs", RCS),
("rcr", RCR),
("rcg", RCG),
("rcb", RCB),
("rcd", RCD),
("rgp", RGP),
("rgi", RGI),
("rgo", RGO),
("rgl", RGL),
]
.iter()
.find(|(reg, bc)| *reg == name)?;
Some((*item).1)
}
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