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re-arrange modules, add "plug-in" system so instructions can be defined in multiple crates

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Ondřej Hruška 4 years ago
parent 547beed847
commit f015104b95
Signed by untrusted user: MightyPork
GPG Key ID: 2C5FD5035250423D
45 changed files with 984 additions and 843 deletions
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  1. 73
      Cargo.lock
  2. 6
      Cargo.toml
  3. 11
      asm/Cargo.toml
  4. 19
      asm/src/parse/parse_cond.rs
  5. 516
      asm/src/parse/parse_op.rs
  6. 22
      asm/src/parse/parse_routines.rs
  7. 11
      crsn/Cargo.toml
  8. 0
      crsn/src/asm/data/literal.rs
  9. 2
      crsn/src/asm/data/mask.rs
  10. 2
      crsn/src/asm/data/mod.rs
  11. 2
      crsn/src/asm/data/reg.rs
  12. 6
      crsn/src/asm/error.rs
  13. 3
      crsn/src/asm/instr/cond.rs
  14. 8
      crsn/src/asm/instr/flatten.rs
  15. 6
      crsn/src/asm/instr/mod.rs
  16. 53
      crsn/src/asm/instr/op.rs
  17. 17
      crsn/src/asm/mod.rs
  18. 15
      crsn/src/asm/parse/mod.rs
  19. 20
      crsn/src/asm/parse/parse_cond.rs
  20. 8
      crsn/src/asm/parse/parse_data.rs
  21. 17
      crsn/src/asm/parse/parse_instr.rs
  22. 109
      crsn/src/asm/parse/parse_op.rs
  23. 23
      crsn/src/asm/parse/parse_routines.rs
  24. 2
      crsn/src/asm/parse/sexp_expect.rs
  25. 0
      crsn/src/asm/patches/mod.rs
  26. 0
      crsn/src/asm/patches/sexp_is_a.rs
  27. 0
      crsn/src/asm/patches/try_remove.rs
  28. 8
      crsn/src/lib.rs
  29. 131
      crsn/src/runtime/exec/mod.rs
  30. 7
      crsn/src/runtime/fault.rs
  31. 9
      crsn/src/runtime/frame.rs
  32. 4
      crsn/src/runtime/frame/status.rs
  33. 6
      crsn/src/runtime/mlock.rs
  34. 3
      crsn/src/runtime/mod.rs
  35. 7
      crsn/src/runtime/program.rs
  36. 11
      crsn/src/runtime/run_thread.rs
  37. 2
      crsn/src/runtime/span.rs
  38. 0
      crsn/src/runtime/sparse.rs
  39. 7
      crsn_arith/Cargo.toml
  40. 28
      crsn_arith/src/defs.rs
  41. 166
      crsn_arith/src/exec.rs
  42. 6
      crsn_arith/src/lib.rs
  43. 452
      crsn_arith/src/parse.rs
  44. 16
      launcher/Cargo.toml
  45. 13
      launcher/src/main.rs

73
Cargo.lock generated
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@ -6,15 +6,6 @@ version = "1.0.32"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6b602bfe940d21c130f3895acd65221e8a61270debe89d628b9cb4e3ccb8569b" checksum = "6b602bfe940d21c130f3895acd65221e8a61270debe89d628b9cb4e3ccb8569b"
[[package]]
name = "asm"
version = "0.1.0"
dependencies = [
"anyhow",
"sexp",
"thiserror",
]
[[package]] [[package]]
name = "atty" name = "atty"
version = "0.2.14" version = "0.2.14"
@ -65,13 +56,48 @@ name = "crsn"
version = "0.1.0" version = "0.1.0"
dependencies = [ dependencies = [
"anyhow", "anyhow",
"asm", "dyn-clonable",
"log", "log",
"runtime", "num-traits",
"simple_logger", "sexp",
"thiserror", "thiserror",
] ]
[[package]]
name = "crsn_arith"
version = "0.1.0"
dependencies = [
"crsn",
"num-traits",
]
[[package]]
name = "dyn-clonable"
version = "0.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4e9232f0e607a262ceb9bd5141a3dfb3e4db6994b31989bbfd845878cba59fd4"
dependencies = [
"dyn-clonable-impl",
"dyn-clone",
]
[[package]]
name = "dyn-clonable-impl"
version = "0.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "558e40ea573c374cf53507fd240b7ee2f5477df7cfebdb97323ec61c719399c5"
dependencies = [
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "dyn-clone"
version = "1.0.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4c53dc3a653e0f64081026e4bf048d48fec9fce90c66e8326ca7292df0ff2d82"
[[package]] [[package]]
name = "hermit-abi" name = "hermit-abi"
version = "0.1.16" version = "0.1.16"
@ -81,6 +107,18 @@ dependencies = [
"libc", "libc",
] ]
[[package]]
name = "launcher"
version = "0.1.0"
dependencies = [
"anyhow",
"crsn",
"crsn_arith",
"log",
"simple_logger",
"thiserror",
]
[[package]] [[package]]
name = "lazy_static" name = "lazy_static"
version = "1.4.0" version = "1.4.0"
@ -139,17 +177,6 @@ dependencies = [
"proc-macro2", "proc-macro2",
] ]
[[package]]
name = "runtime"
version = "0.1.0"
dependencies = [
"anyhow",
"asm",
"log",
"num-traits",
"thiserror",
]
[[package]] [[package]]
name = "sexp" name = "sexp"
version = "1.1.4" version = "1.1.4"

6
Cargo.toml
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@ -1,6 +1,6 @@
[workspace] [workspace]
members = [ members = [
"asm", "launcher",
"runtime", "crsn",
"crsn" "crsn_arith",
] ]

11
asm/Cargo.toml
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@ -1,11 +0,0 @@
[package]
name = "asm"
version = "0.1.0"
authors = ["Ondřej Hruška <ondra@ondrovo.com>"]
edition = "2018"
publish = false
[dependencies]
sexp = "1.1.4"
thiserror = "1.0.20"
anyhow = "1.0.32"

19
asm/src/parse/parse_cond.rs
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@ -1,19 +0,0 @@
use sexp::Sexp;
use crate::error::Error;
use crate::instr::{Cond, Instr, cond};
use crate::parse::parse_instr::parse_instructions;
use crate::parse::sexp_expect::{expect_list, expect_string_atom};
use crate::patches::TryRemove;
pub fn parse_cond_branch(tok: Sexp) -> Result<(Cond, Vec<Instr>), Error> {
let mut list = expect_list(Some(tok), false)?;
let kw = expect_string_atom(list.try_remove(0))?;
if !kw.ends_with('?') {
return Err(Error::Parse(format!("Condition must end with '?': {}", kw).into()));
}
Ok((cond::parse_cond(&kw)?, parse_instructions(list)?))
}

516
asm/src/parse/parse_op.rs
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@ -1,516 +0,0 @@
use sexp::Sexp;
use crate::data::{Rd, Wr};
use crate::data::literal::{Label, RoutineName};
use crate::error::Error;
use crate::instr::{HLOp, Op};
use crate::instr::cond::parse_cond;
use crate::parse::parse_data::{parse_label, parse_rd, parse_wr};
use crate::parse::sexp_expect::expect_string_atom;
pub fn parse_op(keyword: &str, far: bool, mut arg_tokens: impl ExactSizeIterator<Item=Sexp> + Clone) -> Result<HLOp, Error> {
Ok(match keyword {
"j" => {
let dest = parse_label(arg_tokens.next())?;
if far {
HLOp::L(Op::FarJump(dest))
} else {
HLOp::Jump(dest)
}
}
"call" => {
let dest = RoutineName(expect_string_atom(arg_tokens.next())?);
let mut args = vec![];
for t in arg_tokens {
args.push(parse_rd(Some(t))?);
}
HLOp::L(Op::Call(dest, args))
}
"ret" => {
let mut args = vec![];
for t in arg_tokens {
args.push(parse_rd(Some(t))?);
}
HLOp::L(Op::Ret(args))
}
"routine" => {
let dest = RoutineName(expect_string_atom(arg_tokens.next())?);
HLOp::L(Op::Routine(dest))
}
"s" => {
HLOp::L(Op::Skip(parse_rd(arg_tokens.next())?))
}
"sif" => {
let cond = parse_cond(&expect_string_atom(arg_tokens.next())?)?;
let offs = parse_rd(arg_tokens.next())?;
HLOp::L(Op::SkipIf(cond, offs))
}
"jif" => {
let cond = parse_cond(&expect_string_atom(arg_tokens.next())?)?;
let dest = parse_label(arg_tokens.next())?;
HLOp::JumpIf(cond, dest)
}
"barrier" => {
HLOp::L(Op::Barrier(match arg_tokens.next() {
None => None,
Some(s) => Some(expect_string_atom(Some(s))?.into()),
}))
}
"fault" => {
HLOp::L(Op::Fault(match arg_tokens.next() {
None => None,
Some(s) => Some(expect_string_atom(Some(s))?.into()),
}))
}
"ld" => {
HLOp::L(Op::Move {
dst: parse_wr(arg_tokens.next())?,
src: parse_rd(arg_tokens.next())?,
})
}
"cmp" => {
HLOp::L(Op::Compare {
a: parse_rd(arg_tokens.next())?,
b: parse_rd(arg_tokens.next())?,
})
}
"tst" => {
let arg = parse_rd(arg_tokens.next())?;
HLOp::L(Op::Test { a: arg })
}
"inc" => {
let dst = parse_wr(arg_tokens.next())?;
HLOp::L(Op::Add {
dst,
a: dst.as_rd(),
b: Rd::immediate(1),
})
}
"dec" => {
let dst = parse_wr(arg_tokens.next())?;
HLOp::L(Op::Sub {
dst,
a: dst.as_rd(),
b: Rd::immediate(1),
})
}
"add" => {
HLOp::L(match arg_tokens.len() {
3 => {
Op::Add {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
b: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Add {
dst,
a: dst.as_rd(),
b: parse_rd(arg_tokens.next())?,
}
}
_ => {
return Err(Error::Parse("Add requires 2 or 3 arguments".into()));
}
})
}
"sub" => {
HLOp::L(match arg_tokens.len() {
3 => {
Op::Sub {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
b: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Sub {
dst,
a: dst.as_rd(),
b: parse_rd(arg_tokens.next())?,
}
}
_ => {
return Err(Error::Parse("Sub requires 2 or 3 arguments".into()));
}
})
}
"mul" => {
HLOp::L(match arg_tokens.len() {
3 => {
Op::Mul {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
b: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Mul {
dst,
a: dst.as_rd(),
b: parse_rd(arg_tokens.next())?,
}
}
_ => {
return Err(Error::Parse("Mul requires 2 or 3 arguments".into()));
}
})
}
"divr" => {
HLOp::L(match arg_tokens.len() {
3 => {
let dst = parse_wr(arg_tokens.next())?;
let rem = parse_wr(arg_tokens.next())?;
let div = parse_rd(arg_tokens.next())?;
Op::Div {
dst,
rem,
a: dst.as_rd(),
div,
}
}
4 => {
Op::Div {
dst: parse_wr(arg_tokens.next())?,
rem: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
div: parse_rd(arg_tokens.next())?,
}
}
_ => {
return Err(Error::Parse("DivR requires 3 or 4 arguments".into()));
}
})
}
"div" => {
HLOp::L(match arg_tokens.len() {
3 => {
Op::Div {
dst: parse_wr(arg_tokens.next())?,
rem: Wr::discard(),
a: parse_rd(arg_tokens.next())?,
div: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
let div = parse_rd(arg_tokens.next())?;
Op::Div {
dst,
rem: Wr::discard(),
a: dst.as_rd(),
div,
}
}
_ => {
return Err(Error::Parse("Div requires 2 or 3 arguments".into()));
}
})
}
"mod" => {
HLOp::L(match arg_tokens.len() {
3 => {
Op::Mod {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
div: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
let div = parse_rd(arg_tokens.next())?;
Op::Mod {
dst,
a: dst.as_rd(),
div,
}
}
_ => {
return Err(Error::Parse("Mod requires 2 or 3 arguments".into()));
}
})
}
"and" => {
HLOp::L(match arg_tokens.len() {
3 => {
Op::And {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
b: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
Op::And {
dst,
a: dst.as_rd(),
b: parse_rd(arg_tokens.next())?,
}
}
_ => {
return Err(Error::Parse("And requires 2 or 3 arguments".into()));
}
})
}
"or" => {
HLOp::L(match arg_tokens.len() {
3 => {
Op::Or {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
b: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Or {
dst,
a: dst.as_rd(),
b: parse_rd(arg_tokens.next())?,
}
}
_ => {
return Err(Error::Parse("Or requires 2 or 3 arguments".into()));
}
})
}
"xor" => {
HLOp::L(match arg_tokens.len() {
3 => {
Op::Xor {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
b: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Xor {
dst,
a: dst.as_rd(),
b: parse_rd(arg_tokens.next())?,
}
}
_ => {
return Err(Error::Parse("Xor requires 2 or 3 arguments".into()));
}
})
}
"cpl" => {
HLOp::L(match arg_tokens.len() {
2 => {
Op::Cpl {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
}
}
1 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Cpl {
dst,
a: dst.as_rd(),
}
}
_ => {
return Err(Error::Parse("Cpl requires 1 or 2 arguments".into()));
}
})
}
"rol" => {
HLOp::L(match arg_tokens.len() {
3 => {
Op::Rol {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
n: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Rol {
dst,
a: dst.as_rd(),
n: parse_rd(arg_tokens.next())?,
}
}
1 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Rol {
dst,
a: dst.as_rd(),
n: Rd::immediate(1),
}
}
_ => {
return Err(Error::Parse("Rol requires 1, 2 or 3 arguments".into()));
}
})
}
"ror" => {
HLOp::L(match arg_tokens.len() {
3 => {
Op::Ror {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
n: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Ror {
dst,
a: dst.as_rd(),
n: parse_rd(arg_tokens.next())?,
}
}
1 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Ror {
dst,
a: dst.as_rd(),
n: Rd::immediate(1),
}
}
_ => {
return Err(Error::Parse("Ror requires 1, 2 or 3 arguments".into()));
}
})
}
"lsl" | "asl" => {
HLOp::L(match arg_tokens.len() {
3 => {
Op::Lsl {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
n: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Lsl {
dst,
a: dst.as_rd(),
n: parse_rd(arg_tokens.next())?,
}
}
1 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Lsl {
dst,
a: dst.as_rd(),
n: Rd::immediate(1),
}
}
_ => {
return Err(Error::Parse("Lsl requires 1, 2 or 3 arguments".into()));
}
})
}
"lsr" => {
HLOp::L(match arg_tokens.len() {
3 => {
Op::Lsr {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
n: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Lsr {
dst,
a: dst.as_rd(),
n: parse_rd(arg_tokens.next())?,
}
}
1 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Lsr {
dst,
a: dst.as_rd(),
n: Rd::immediate(1),
}
}
_ => {
return Err(Error::Parse("Lsr requires 1, 2 or 3 arguments".into()));
}
})
}
"asr" => {
HLOp::L(match arg_tokens.len() {
3 => {
Op::Asr {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
n: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Asr {
dst,
a: dst.as_rd(),
n: parse_rd(arg_tokens.next())?,
}
}
1 => {
let dst = parse_wr(arg_tokens.next())?;
Op::Asr {
dst,
a: dst.as_rd(),
n: Rd::immediate(1),
}
}
_ => {
return Err(Error::Parse("Asr requires 1, 2 or 3 arguments".into()));
}
})
}
other => {
if let Some(label) = other.strip_prefix(':') {
let label = Label::Named(label.to_string());
if far {
HLOp::L(Op::FarLabel(label))
} else {
HLOp::Label(label)
}
} else {
return Err(Error::Parse(format!("Unknown instruction: {}", other).into()));
}
}
})
}

22
asm/src/parse/parse_routines.rs
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@ -1,22 +0,0 @@
use sexp::Sexp;
use crate::data::literal::RoutineName;
use crate::error::Error;
use crate::instr::Routine;
use crate::parse::parse_instr::parse_instructions;
use crate::parse::sexp_expect::{expect_list, expect_string_atom};
use crate::patches::TryRemove;
pub fn parse_routines(routines: Vec<Sexp>) -> Result<Vec<Routine>, Error> {
let mut parsed = vec![];
for rt in routines {
let mut def = expect_list(Some(rt), false)?;
let name = expect_string_atom(def.try_remove(0))?;
let body = parse_instructions(def)?;
parsed.push(Routine {
name: RoutineName(name),
body,
})
}
Ok(parsed)
}

11
crsn/Cargo.toml
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@ -3,13 +3,12 @@ name = "crsn"
version = "0.1.0" version = "0.1.0"
authors = ["Ondřej Hruška <ondra@ondrovo.com>"] authors = ["Ondřej Hruška <ondra@ondrovo.com>"]
edition = "2018" edition = "2018"
publish = false
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies] [dependencies]
asm = { path = "../asm" } sexp = "1.1.4"
runtime = { path = "../runtime" }
simple_logger = "1.9.0"
log = "0.4.11"
thiserror = "1.0.20" thiserror = "1.0.20"
anyhow = "1.0.32" anyhow = "1.0.32"
dyn-clonable = "0.9.0"
log = "0.4.11"
num-traits = "0.2.12"

0
asm/src/data/literal.rs → crsn/src/asm/data/literal.rs
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2
asm/src/data/mask.rs → crsn/src/asm/data/mask.rs
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@ -1,6 +1,6 @@
//! Mask applied to a data source or destination //! Mask applied to a data source or destination
use crate::error::AsmError; use crate::asm::error::AsmError;
/// Bit mask to apply to a value /// Bit mask to apply to a value
#[derive(Debug, Clone, Copy, Eq, PartialEq)] #[derive(Debug, Clone, Copy, Eq, PartialEq)]

2
asm/src/data/mod.rs → crsn/src/asm/data/mod.rs
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@ -6,7 +6,7 @@ use literal::Addr;
pub use mask::Mask; pub use mask::Mask;
pub use reg::Register; pub use reg::Register;
use crate::data::literal::{as_signed, Value}; use crate::asm::data::literal::{as_signed, Value};
use super::error::AsmError; use super::error::AsmError;

2
asm/src/data/reg.rs → crsn/src/asm/data/reg.rs
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@ -1,6 +1,6 @@
use std::fmt::{self, Display, Formatter}; use std::fmt::{self, Display, Formatter};
use crate::error::Error; use crate::asm::error::Error;
/// Register name /// Register name
#[derive(Debug, Clone, Copy, Eq, PartialEq)] #[derive(Debug, Clone, Copy, Eq, PartialEq)]

6
asm/src/error.rs → crsn/src/asm/error.rs
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@ -2,9 +2,9 @@ use std::borrow::Cow;
use thiserror::Error; use thiserror::Error;
use crate::data::{Mask, Register}; use crate::asm::data::{Mask, Register};
use crate::data::literal::Label; use crate::asm::data::literal::Label;
use crate::instr::Cond; use crate::asm::instr::Cond;
/// csn_asm unified error type /// csn_asm unified error type
#[derive(Error, Debug)] #[derive(Error, Debug)]

3
asm/src/instr/cond.rs → crsn/src/asm/instr/cond.rs
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@ -1,6 +1,7 @@
use std::fmt::{self, Display, Formatter}; use std::fmt::{self, Display, Formatter};
use std::ops::Not; use std::ops::Not;
use crate::error::Error;
use crate::asm::error::Error;
/// Condition flag /// Condition flag
#[derive(Clone, Copy, Debug, Eq, PartialEq, Hash)] #[derive(Clone, Copy, Debug, Eq, PartialEq, Hash)]

8
asm/src/instr/flatten.rs → crsn/src/asm/instr/flatten.rs
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@ -1,10 +1,10 @@
use std::collections::HashMap; use std::collections::HashMap;
use std::sync::atomic::AtomicU32; use std::sync::atomic::AtomicU32;
use crate::data::{Rd, SrcDisp}; use crate::asm::data::{Rd, SrcDisp};
use crate::data::literal::{Label, Value}; use crate::asm::data::literal::{Label, Value};
use crate::error::{AsmError, Error}; use crate::asm::error::{AsmError, Error};
use crate::instr::{Cond, HLOp, Instr, Op, Routine}; use crate::asm::instr::{Cond, HLOp, Instr, Op, Routine};
/// A trait for something that can turn into multiple instructions /// A trait for something that can turn into multiple instructions
pub trait Flatten { pub trait Flatten {

6
asm/src/instr/mod.rs → crsn/src/asm/instr/mod.rs
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@ -4,14 +4,14 @@ pub use flatten::lower;
pub use op::HLOp; pub use op::HLOp;
pub use op::Op; pub use op::Op;
use crate::data::literal::RoutineName; use crate::asm::data::literal::RoutineName;
mod op; pub mod op;
pub mod cond; pub mod cond;
mod flatten; mod flatten;
/// A higher-level instruction /// A higher-level instruction
#[derive(Debug, Clone, Eq, PartialEq)] #[derive(Debug, Clone)]
pub struct Instr { pub struct Instr {
pub op: HLOp, pub op: HLOp,
pub branches: Option<Vec<(Cond, Vec<Instr>)>>, pub branches: Option<Vec<(Cond, Vec<Instr>)>>,

53
asm/src/instr/op.rs → crsn/src/asm/instr/op.rs
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@ -1,13 +1,22 @@
use crate::data::{ use std::fmt::Debug;
use dyn_clonable::*;
use sexp::Sexp;
use crate::asm::data::{
literal::DebugMsg, literal::Label, literal::DebugMsg, literal::Label,
literal::RoutineName, literal::RoutineName,
Rd, Rd,
Wr, Wr,
}; };
use crate::instr::Cond; use crate::asm::error::Error;
use crate::asm::instr::Cond;
use crate::runtime::fault::Fault;
use crate::runtime::frame::{CallStack, StackFrame};
use crate::runtime::program::Program;
/// A higher level simple opration /// A higher level simple opration
#[derive(Clone, Debug, Eq, PartialEq)] #[derive(Clone, Debug)]
pub enum HLOp { pub enum HLOp {
/// Mark a jump target. /// Mark a jump target.
Label(Label), Label(Label),
@ -20,7 +29,7 @@ pub enum HLOp {
} }
/// A low level instruction /// A low level instruction
#[derive(Clone, Debug, Eq, PartialEq)] #[derive(Clone, Debug)]
pub enum Op { pub enum Op {
/// Do nothing /// Do nothing
Nop, Nop,
@ -45,32 +54,14 @@ pub enum Op {
Barrier(Option<DebugMsg>), Barrier(Option<DebugMsg>),
/// Generate a run-time fault with a debugger message /// Generate a run-time fault with a debugger message
Fault(Option<DebugMsg>), Fault(Option<DebugMsg>),
/// Copy value
Move { dst: Wr, src: Rd }, Move { dst: Wr, src: Rd },
Test { a: Rd }, /// Store runtime status to a register
Compare { a: Rd, b: Rd },
StoreStatus { dst: Wr }, StoreStatus { dst: Wr },
/// Load runtime status from a register
LoadStatus { src: Rd }, LoadStatus { src: Rd },
Add { dst: Wr, a: Rd, b: Rd }, Extension(Box<dyn OpTrait>),
Sub { dst: Wr, a: Rd, b: Rd },
Mul { dst: Wr, a: Rd, b: Rd },
Div { dst: Wr, rem: Wr, a: Rd, div: Rd },
// "Mod" is functionally equivalent to "Div" with the result discarded,
// but status flags are updated by the remainder
Mod { dst: Wr, a: Rd, div: Rd },
And { dst: Wr, a: Rd, b: Rd },
Or { dst: Wr, a: Rd, b: Rd },
Xor { dst: Wr, a: Rd, b: Rd },
Cpl { dst: Wr, a: Rd },
Rol { dst: Wr, a: Rd, n: Rd },
// Rotate (with wrap-around)
Ror { dst: Wr, a: Rd, n: Rd },
Lsl { dst: Wr, a: Rd, n: Rd },
// Shift
Lsr { dst: Wr, a: Rd, n: Rd },
Asr { dst: Wr, a: Rd, n: Rd },
} }
/// Make "into" work /// Make "into" work
@ -79,3 +70,13 @@ impl From<Op> for HLOp {
HLOp::L(op) HLOp::L(op)
} }
} }
#[clonable]
pub trait OpTrait: Clone + Debug + Send + 'static {
fn execute(&self, program: &Program, call_stack: &mut CallStack, frame: &mut StackFrame) -> Result<(), Fault>;
}
#[clonable]
pub trait OpParser: Clone + Debug + Send + 'static {
fn parse_op(&self, keyword: &str, far: bool, arg_tokens: Vec<Sexp>) -> Result<Box<dyn OpTrait>, Error>;
}

17
asm/src/lib.rs → crsn/src/asm/mod.rs
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@ -1,4 +1,5 @@
use crate::instr::{lower, Op}; use crate::asm::instr::{lower, Op};
use crate::asm::instr::op::OpParser;
pub mod data; pub mod data;
pub mod error; pub mod error;
@ -7,8 +8,8 @@ pub mod parse;
pub mod patches; pub mod patches;
/// Parse a program from string and assemble a low level instruction sequence from it. /// Parse a program from string and assemble a low level instruction sequence from it.
pub fn assemble(source: &str) -> Result<Vec<Op>, error::Error> { pub fn assemble(source: &str, parsers: &[Box<dyn OpParser>]) -> Result<Vec<Op>, error::Error> {
let parsed = parse::parse(source)?; let parsed = parse::parse(source, parsers)?;
Ok(lower(parsed)?) Ok(lower(parsed)?)
} }
@ -16,11 +17,11 @@ pub fn assemble(source: &str) -> Result<Vec<Op>, error::Error> {
mod tests { mod tests {
use std::sync::atomic::AtomicU32; use std::sync::atomic::AtomicU32;
use crate::data::{DstDisp, Rd, Register, SrcDisp, Wr}; use crate::asm::data::{DstDisp, Rd, Register, SrcDisp, Wr};
use crate::data::literal::{Addr, Label}; use crate::asm::data::literal::{Addr, Label};
use crate::instr::{Flatten, HLOp, Instr, lower, Op}; use crate::asm::instr::{Flatten, HLOp, Instr, lower, Op};
use crate::instr::Cond; use crate::asm::instr::Cond;
use crate::parse::{parse, parse_instructions}; use crate::asm::parse::{parse, parse_instructions};
#[test] #[test]
fn test_parse_empty() { fn test_parse_empty() {

15
asm/src/parse/mod.rs → crsn/src/asm/parse/mod.rs
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@ -3,21 +3,22 @@ use std::sync::atomic::AtomicU32;
pub use parse_instr::parse_instructions; pub use parse_instr::parse_instructions;
use parse_routines::parse_routines; use parse_routines::parse_routines;
use crate::error::Error; use crate::asm::error::Error;
use crate::instr::{Flatten, HLOp, Routine}; use crate::asm::instr::{Flatten, HLOp, Routine};
use crate::parse::sexp_expect::expect_list; use crate::asm::instr::op::OpParser;
use crate::asm::parse::sexp_expect::expect_list;
mod parse_cond; mod parse_cond;
mod parse_instr; mod parse_instr;
mod parse_data; pub mod parse_data;
mod parse_routines; mod parse_routines;
mod sexp_expect; pub mod sexp_expect;
mod parse_op; mod parse_op;
pub fn parse(source: &str) -> Result<Vec<HLOp>, Error> { pub fn parse(source: &str, parsers: &[Box<dyn OpParser>]) -> Result<Vec<HLOp>, Error> {
let root = sexp::parse(source)?; let root = sexp::parse(source)?;
let subs: Vec<Routine> = parse_routines(expect_list(Some(root), true)?)?; let subs: Vec<Routine> = parse_routines(expect_list(Some(root), true)?, parsers)?;
let mut combined = vec![]; let mut combined = vec![];
let label_num = AtomicU32::new(0); let label_num = AtomicU32::new(0);

20
crsn/src/asm/parse/parse_cond.rs
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@ -0,0 +1,20 @@
use sexp::Sexp;
use crate::asm::error::Error;
use crate::asm::instr::{Cond, cond, Instr};
use crate::asm::instr::op::OpParser;
use crate::asm::parse::parse_instr::parse_instructions;
use crate::asm::parse::sexp_expect::{expect_list, expect_string_atom};
use crate::asm::patches::TryRemove;
pub fn parse_cond_branch(tok: Sexp, parsers: &[Box<dyn OpParser>]) -> Result<(Cond, Vec<Instr>), Error> {
let mut list = expect_list(Some(tok), false)?;
let kw = expect_string_atom(list.try_remove(0))?;
if !kw.ends_with('?') {
return Err(Error::Parse(format!("Condition must end with '?': {}", kw).into()));
}
Ok((cond::parse_cond(&kw)?, parse_instructions(list, parsers)?))
}

8
asm/src/parse/parse_data.rs → crsn/src/asm/parse/parse_data.rs
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@ -2,10 +2,10 @@ use std::convert::TryFrom;
use sexp::{Atom, Sexp}; use sexp::{Atom, Sexp};
use crate::data::{DataDisp, DstDisp, Rd, reg, SrcDisp, Wr}; use crate::asm::data::{DataDisp, DstDisp, Rd, reg, SrcDisp, Wr};
use crate::data::literal::{Addr, Label}; use crate::asm::data::literal::{Addr, Label};
use crate::error::Error; use crate::asm::error::Error;
use crate::parse::sexp_expect::expect_string_atom; use crate::asm::parse::sexp_expect::expect_string_atom;
/// Parse a label /// Parse a label
pub fn parse_label(name: Option<Sexp>) -> Result<Label, Error> { pub fn parse_label(name: Option<Sexp>) -> Result<Label, Error> {

17
asm/src/parse/parse_instr.rs → crsn/src/asm/parse/parse_instr.rs
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@ -1,14 +1,15 @@
use sexp::Sexp; use sexp::Sexp;
use crate::error::Error; use crate::asm::error::Error;
use crate::instr::Instr; use crate::asm::instr::Instr;
use crate::parse::parse_cond::parse_cond_branch; use crate::asm::instr::op::OpParser;
use crate::parse::sexp_expect::{expect_list, expect_string_atom}; use crate::asm::parse::parse_cond::parse_cond_branch;
use crate::patches::SexpIsA; use crate::asm::parse::sexp_expect::{expect_list, expect_string_atom};
use crate::asm::patches::SexpIsA;
use super::parse_op::parse_op; use super::parse_op::parse_op;
pub fn parse_instructions(instrs: Vec<Sexp>) -> Result<Vec<Instr>, Error> { pub fn parse_instructions(instrs: Vec<Sexp>, parsers: &[Box<dyn OpParser>]) -> Result<Vec<Instr>, Error> {
let mut parsed = vec![]; let mut parsed = vec![];
for expr in instrs { for expr in instrs {
let tokens = expect_list(Some(expr), false)?; let tokens = expect_list(Some(expr), false)?;
@ -32,7 +33,7 @@ pub fn parse_instructions(instrs: Vec<Sexp>) -> Result<Vec<Instr>, Error> {
let branches = { let branches = {
let mut branches = vec![]; let mut branches = vec![];
for t in branch_tokens { for t in branch_tokens {
branches.push(parse_cond_branch(t)?); branches.push(parse_cond_branch(t, parsers)?);
} }
if branches.is_empty() { if branches.is_empty() {
None None
@ -42,7 +43,7 @@ pub fn parse_instructions(instrs: Vec<Sexp>) -> Result<Vec<Instr>, Error> {
}; };
parsed.push(Instr { parsed.push(Instr {
op: parse_op(name.as_str(), far, arg_tokens.into_iter())?, op: parse_op(name.as_str(), far, arg_tokens, parsers)?,
branches, branches,
}); });
} }

109
crsn/src/asm/parse/parse_op.rs
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@ -0,0 +1,109 @@
use sexp::Sexp;
use crate::asm::data::literal::{Label, RoutineName};
use crate::asm::error::{AsmError, Error};
use crate::asm::instr::{HLOp, Op};
use crate::asm::instr::cond::parse_cond;
use crate::asm::instr::op::OpParser;
use crate::asm::parse::parse_data::{parse_label, parse_rd, parse_wr};
use crate::asm::parse::sexp_expect::expect_string_atom;
pub fn parse_op(keyword: &str, far: bool, arg_tokens_slice: Vec<Sexp>, parsers: &[Box<dyn OpParser>]) -> Result<HLOp, Error> {
let mut arg_tokens = arg_tokens_slice.clone().into_iter();
Ok(match keyword {
"j" => {
let dest = parse_label(arg_tokens.next())?;
if far {
HLOp::L(Op::FarJump(dest))
} else {
HLOp::Jump(dest)
}
}
"call" => {
let dest = RoutineName(expect_string_atom(arg_tokens.next())?);
let mut args = vec![];
for t in arg_tokens {
args.push(parse_rd(Some(t))?);
}
HLOp::L(Op::Call(dest, args))
}
"ret" => {
let mut args = vec![];
for t in arg_tokens {
args.push(parse_rd(Some(t))?);
}
HLOp::L(Op::Ret(args))
}
"routine" => {
let dest = RoutineName(expect_string_atom(arg_tokens.next())?);
HLOp::L(Op::Routine(dest))
}
"s" => {
HLOp::L(Op::Skip(parse_rd(arg_tokens.next())?))
}
"sif" => {
let cond = parse_cond(&expect_string_atom(arg_tokens.next())?)?;
let offs = parse_rd(arg_tokens.next())?;
HLOp::L(Op::SkipIf(cond, offs))
}
"jif" => {
let cond = parse_cond(&expect_string_atom(arg_tokens.next())?)?;
let dest = parse_label(arg_tokens.next())?;
HLOp::JumpIf(cond, dest)
}
"barrier" => {
HLOp::L(Op::Barrier(match arg_tokens.next() {
None => None,
Some(s) => Some(expect_string_atom(Some(s))?.into()),
}))
}
"fault" => {
HLOp::L(Op::Fault(match arg_tokens.next() {
None => None,
Some(s) => Some(expect_string_atom(Some(s))?.into()),
}))
}
"ld" => {
HLOp::L(Op::Move {
dst: parse_wr(arg_tokens.next())?,
src: parse_rd(arg_tokens.next())?,
})
}
other => {
if let Some(label) = other.strip_prefix(':') {
let label = Label::Named(label.to_string());
if far {
HLOp::L(Op::FarLabel(label))
} else {
HLOp::Label(label)
}
} else {
for p in parsers {
match p.parse_op(keyword, far, arg_tokens_slice.clone()) {
Ok(op) => return Ok(HLOp::L(Op::Extension(op))),
Err(Error::Asm(AsmError::UnknownInstruction)) => {
/* ok, try another */
}
Err(other) => {
return Err(other);
}
}
}
return Err(Error::Parse(format!("Unknown instruction: {}", other).into()));
}
}
})
}

23
crsn/src/asm/parse/parse_routines.rs
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@ -0,0 +1,23 @@
use sexp::Sexp;
use crate::asm::data::literal::RoutineName;
use crate::asm::error::Error;
use crate::asm::instr::op::OpParser;
use crate::asm::instr::Routine;
use crate::asm::parse::parse_instr::parse_instructions;
use crate::asm::parse::sexp_expect::{expect_list, expect_string_atom};
use crate::asm::patches::TryRemove;
pub fn parse_routines(routines: Vec<Sexp>, parsers: &[Box<dyn OpParser>]) -> Result<Vec<Routine>, Error> {
let mut parsed = vec![];
for rt in routines {
let mut def = expect_list(Some(rt), false)?;
let name = expect_string_atom(def.try_remove(0))?;
let body = parse_instructions(def, parsers)?;
parsed.push(Routine {
name: RoutineName(name),
body,
})
}
Ok(parsed)
}

2
asm/src/parse/sexp_expect.rs → crsn/src/asm/parse/sexp_expect.rs
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@ -1,6 +1,6 @@
use sexp::{Atom, Sexp}; use sexp::{Atom, Sexp};
use crate::error::Error; use crate::asm::error::Error;
pub fn expect_list(expr: Option<Sexp>, allow_empty: bool) -> Result<Vec<Sexp>, Error> { pub fn expect_list(expr: Option<Sexp>, allow_empty: bool) -> Result<Vec<Sexp>, Error> {
if let Some(expr) = expr { if let Some(expr) = expr {

0
asm/src/patches/mod.rs → crsn/src/asm/patches/mod.rs
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0
asm/src/patches/sexp_is_a.rs → crsn/src/asm/patches/sexp_is_a.rs
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0
asm/src/patches/try_remove.rs → crsn/src/asm/patches/try_remove.rs
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8
crsn/src/lib.rs
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@ -0,0 +1,8 @@
#[macro_use]
extern crate log;
pub use sexp;
pub mod asm;
pub mod runtime;

131
crsn/src/runtime/exec/mod.rs
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@ -0,0 +1,131 @@
use crate::asm::data::literal::Addr;
use crate::asm::instr::Op;
use crate::runtime::fault::Fault;
use crate::runtime::frame::StackFrame;
use crate::runtime::run_thread::RunThread;
pub type CyclesSpent = usize;
pub struct EvalRes {
pub cycles: u8,
pub advance: i64,
}
impl RunThread {
// TODO unit tests
pub fn eval_op(&mut self) -> Result<EvalRes, Fault> {
let mut cycles = 1;
let mut advance = 1;
let frame = &mut self.frame;
let op = self.program.read(frame.pc);
debug!("------------------------");
debug!("{} | {:?}", frame.pc, op);
/* Operations can be given different execution times when run in slow mode. */
/* Presently, all that do anything use 1 cycle. */
match op {
Op::Nop => {}
Op::FarLabel(_) | Op::Routine(_) => {
/* this is nop, but without any cost - just markers */
cycles = 0;
}
Op::Barrier(msg) => {
return Err(Fault::Barrier {
msg: msg.clone().unwrap_or_else(|| "No msg".into())
});
}
Op::Fault(msg) => {
return Err(Fault::FaultInstr {
msg: msg.clone().unwrap_or_else(|| "No msg".into())
});
}
Op::FarJump(name) => {
debug!("Far jump to {}", name);
match self.program.find_far_label(name) {
Ok(pos) => {
debug!("label is at {}", pos);
self.frame.pc = pos;
}
Err(e) => {
return Err(e);
}
}
}
Op::Call(name, args) => {
debug!("Call routine {}", name);
match self.program.find_routine(name) {
Ok(pos) => {
debug!("routine is at {}", pos);
let mut values = Vec::with_capacity(args.len());
for arg in args {
values.push(self.frame.read(*arg)?);
}
let mut frame2 = StackFrame::new(pos, &values);
std::mem::swap(&mut self.frame, &mut frame2);
self.call_stack.push(frame2);
advance = 0;
}
Err(e) => {
return Err(e);
}
}
}
Op::Ret(retvals) => {
match self.call_stack.pop() {
Some(previous) => {
let mut values = Vec::with_capacity(retvals.len());
for arg in retvals {
values.push(frame.read(*arg)?);
}
*frame = previous;
frame.set_retvals(&values);
advance = 1; // advance past the call
}
None => {
return Err(Fault::CallStackUnderflow);
}
}
}
Op::Skip(val) => {
let steps = frame.read(*val)?;
advance = i64::from_ne_bytes(steps.to_ne_bytes());
self.program.validate_jump(frame.pc, Addr((frame.pc.0 as i64 + advance) as u64))?;
}
Op::SkipIf(cond, val) => {
if frame.status.test(*cond) {
let steps = frame.read(*val)?;
advance = i64::from_ne_bytes(steps.to_ne_bytes());
self.program.validate_jump(frame.pc, Addr((frame.pc.0 as i64 + advance) as u64))?;
}
}
Op::Move { dst, src } => {
frame.status.clear();
let val = frame.read(*src)?;
frame.status.update(val);
frame.write(*dst, val)?;
}
Op::Extension(xop) => {
xop.execute(&self.program, &mut self.call_stack, frame)?;
}
Op::StoreStatus { dst } => {
let packed = frame.status.store();
frame.write(*dst, packed)?;
}
Op::LoadStatus { src } => {
let x = frame.read(*src)?;
frame.status.load(x);
}
}
Ok(EvalRes {
cycles,
advance,
})
}
}

7
runtime/src/fault.rs → crsn/src/runtime/fault.rs
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@ -1,10 +1,7 @@
use thiserror::Error; use thiserror::Error;
// use super::span::MemorySpan; use crate::asm::data::literal::{DebugMsg, Label, RoutineName};
// use crate::run_thread::ThreadToken; use crate::asm::data::Register;
// use crate::mlock::ClaimId;
use asm::data::literal::{DebugMsg, Label, RoutineName};
use asm::data::Register;
#[derive(Error, Debug)] #[derive(Error, Debug)]
pub enum Fault { pub enum Fault {

9
runtime/src/frame.rs → crsn/src/runtime/frame.rs
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@ -1,13 +1,16 @@
use asm::data::{DstDisp, Rd, Register, SrcDisp, Wr};
use asm::data::literal::{Addr, Value};
use status::StatusFlags; use status::StatusFlags;
use crate::fault::Fault; use crate::asm::data::{DstDisp, Rd, Register, SrcDisp, Wr};
use crate::asm::data::literal::{Addr, Value};
use super::fault::Fault;
mod status; mod status;
pub const REG_COUNT: usize = 8; pub const REG_COUNT: usize = 8;
pub type CallStack = Vec<StackFrame>;
#[derive(Default, Clone, Debug)] #[derive(Default, Clone, Debug)]
pub struct StackFrame { pub struct StackFrame {
/// Program counter, address of the executed instruction /// Program counter, address of the executed instruction

4
runtime/src/frame/status.rs → crsn/src/runtime/frame/status.rs
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@ -1,8 +1,8 @@
use std::fmt::{Display, Formatter}; use std::fmt::{Display, Formatter};
use std::fmt; use std::fmt;
use asm::data::literal::{is_negative, is_positive, Value}; use crate::asm::data::literal::{is_negative, is_positive, Value};
use asm::instr::Cond; use crate::asm::instr::Cond;
#[derive(Default, Clone, Debug)] #[derive(Default, Clone, Debug)]
pub struct StatusFlags { pub struct StatusFlags {

6
runtime/src/mlock.rs → crsn/src/runtime/mlock.rs
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@ -2,9 +2,9 @@ use std::fmt;
use std::fmt::Formatter; use std::fmt::Formatter;
use std::sync::atomic::{AtomicU32, Ordering}; use std::sync::atomic::{AtomicU32, Ordering};
use crate::fault::Fault; use crate::runtime::fault::Fault;
use crate::run_thread::ThreadToken; use crate::runtime::run_thread::ThreadToken;
use crate::span::MemorySpan; use crate::runtime::span::MemorySpan;
/// Records memory claims and protects from illegal access /// Records memory claims and protects from illegal access
#[derive(Debug, Default)] #[derive(Debug, Default)]

3
runtime/src/lib.rs → crsn/src/runtime/mod.rs
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@ -1,6 +1,3 @@
#[macro_use]
extern crate log;
pub mod run_thread; pub mod run_thread;
// pub mod mlock; // pub mod mlock;
// pub mod sparse; // pub mod sparse;

7
runtime/src/program.rs → crsn/src/runtime/program.rs
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@ -1,9 +1,8 @@
use std::collections::HashMap; use std::collections::HashMap;
use asm::data::literal::{Addr, Label, RoutineName}; use crate::asm::data::literal::{Addr, Label, RoutineName};
use asm::instr::Op; use crate::asm::instr::Op;
use crate::runtime::fault::Fault;
use crate::fault::Fault;
#[derive(Clone, Debug)] #[derive(Clone, Debug)]
pub struct Program { pub struct Program {

11
runtime/src/run_thread.rs → crsn/src/runtime/run_thread.rs
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@ -1,11 +1,10 @@
use std::thread::JoinHandle; use std::thread::JoinHandle;
use std::time::Duration; use std::time::Duration;
use asm::data::literal::Addr; use crate::asm::data::literal::Addr;
use crate::runtime::exec::EvalRes;
use crate::exec::EvalRes; use crate::runtime::frame::{CallStack, StackFrame};
use crate::frame::StackFrame; use crate::runtime::program::Program;
use crate::program::Program;
const CYCLE_TIME: Duration = Duration::from_millis(0); const CYCLE_TIME: Duration = Duration::from_millis(0);
//const CYCLE_TIME : Duration = Duration::from_millis(100); //const CYCLE_TIME : Duration = Duration::from_millis(100);
@ -19,7 +18,7 @@ pub struct RunThread {
/// Active stack frame /// Active stack frame
pub frame: StackFrame, pub frame: StackFrame,
/// Call stack /// Call stack
pub call_stack: Vec<StackFrame>, pub call_stack: CallStack,
/// Program to run /// Program to run
pub program: Program, pub program: Program,
} }

2
runtime/src/span.rs → crsn/src/runtime/span.rs
Unescape View File

@ -1,4 +1,4 @@
use asm::data::literal::Addr; use crate::asm::data::literal::Addr;
#[derive(Debug, Clone, Copy)] #[derive(Debug, Clone, Copy)]
pub struct MemorySpan { pub struct MemorySpan {

0
runtime/src/sparse.rs → crsn/src/runtime/sparse.rs
Unescape View File

7
runtime/Cargo.toml → crsn_arith/Cargo.toml
Unescape View File

@ -1,5 +1,5 @@
[package] [package]
name = "runtime" name = "crsn_arith"
version = "0.1.0" version = "0.1.0"
authors = ["Ondřej Hruška <ondra@ondrovo.com>"] authors = ["Ondřej Hruška <ondra@ondrovo.com>"]
edition = "2018" edition = "2018"
@ -7,8 +7,5 @@ edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies] [dependencies]
asm = { path = "../asm" } crsn = { path = "../crsn" }
thiserror = "1.0.20"
anyhow = "1.0.32"
log = "0.4.11"
num-traits = "0.2.12" num-traits = "0.2.12"

28
crsn_arith/src/defs.rs
Unescape View File

@ -0,0 +1,28 @@
use crsn::asm::data::{Rd, Wr};
/// A low level instruction
#[derive(Clone, Debug, Eq, PartialEq)]
pub enum ArithOp {
Test { a: Rd },
Compare { a: Rd, b: Rd },
Add { dst: Wr, a: Rd, b: Rd },
Sub { dst: Wr, a: Rd, b: Rd },
Mul { dst: Wr, a: Rd, b: Rd },
Div { dst: Wr, rem: Wr, a: Rd, div: Rd },
// "Mod" is functionally equivalent to "Div" with the result discarded,
// but status flags are updated by the remainder
Mod { dst: Wr, a: Rd, div: Rd },
And { dst: Wr, a: Rd, b: Rd },
Or { dst: Wr, a: Rd, b: Rd },
Xor { dst: Wr, a: Rd, b: Rd },
Cpl { dst: Wr, a: Rd },
Rol { dst: Wr, a: Rd, n: Rd },
// Rotate (with wrap-around)
Ror { dst: Wr, a: Rd, n: Rd },
Lsl { dst: Wr, a: Rd, n: Rd },
// Shift
Lsr { dst: Wr, a: Rd, n: Rd },
Asr { dst: Wr, a: Rd, n: Rd },
}

166
runtime/src/exec/mod.rs → crsn_arith/src/exec.rs
Unescape View File

@ -2,125 +2,22 @@ use std::ops::Rem;
use num_traits::PrimInt; use num_traits::PrimInt;
use asm::data::literal::Addr; use crsn::asm::instr::op::OpTrait;
use asm::instr::Op; use crsn::runtime::fault::Fault;
use crsn::runtime::frame::{CallStack, StackFrame};
use crsn::runtime::program::Program;
use crate::fault::Fault; use crate::defs::ArithOp;
use crate::frame::StackFrame;
use crate::run_thread::RunThread;
pub type CyclesSpent = usize; impl OpTrait for ArithOp {
fn execute(&self, _program: &Program, _call_stack: &mut CallStack, frame: &mut StackFrame) -> Result<(), Fault> {
pub struct EvalRes { match self {
pub cycles: u8, ArithOp::Test { a } => {
pub advance: i64,
}
impl RunThread {
// TODO unit tests
pub fn eval_op(&mut self) -> Result<EvalRes, Fault> {
let mut cycles = 1;
let mut advance = 1;
let mut frame = &mut self.frame;
let op = self.program.read(frame.pc);
debug!("------------------------");
debug!("{} | {:?}", frame.pc, op);
/* Operations can be given different execution times when run in slow mode. */
/* Presently, all that do anything use 1 cycle. */
match op {
Op::Nop => {}
Op::FarLabel(_) | Op::Routine(_) => {
/* this is nop, but without any cost - just markers */
cycles = 0;
}
Op::Barrier(msg) => {
return Err(Fault::Barrier {
msg: msg.clone().unwrap_or_else(|| "No msg".into())
});
}
Op::Fault(msg) => {
return Err(Fault::FaultInstr {
msg: msg.clone().unwrap_or_else(|| "No msg".into())
});
}
Op::FarJump(name) => {
debug!("Far jump to {}", name);
match self.program.find_far_label(name) {
Ok(pos) => {
debug!("label is at {}", pos);
self.frame.pc = pos;
}
Err(e) => {
return Err(e);
}
}
}
Op::Call(name, args) => {
debug!("Call routine {}", name);
match self.program.find_routine(name) {
Ok(pos) => {
debug!("routine is at {}", pos);
let mut values = Vec::with_capacity(args.len());
for arg in args {
values.push(self.frame.read(*arg)?);
}
let mut frame2 = StackFrame::new(pos, &values);
std::mem::swap(&mut self.frame, &mut frame2);
self.call_stack.push(frame2);
advance = 0;
}
Err(e) => {
return Err(e);
}
}
}
Op::Ret(retvals) => {
match self.call_stack.pop() {
Some(previous) => {
let mut values = Vec::with_capacity(retvals.len());
for arg in retvals {
values.push(frame.read(*arg)?);
}
*frame = previous;
frame.set_retvals(&values);
advance = 1; // advance past the call
}
None => {
return Err(Fault::CallStackUnderflow);
}
}
}
Op::Skip(val) => {
let steps = frame.read(*val)?;
advance = i64::from_ne_bytes(steps.to_ne_bytes());
self.program.validate_jump(frame.pc, Addr((frame.pc.0 as i64 + advance) as u64))?;
}
Op::SkipIf(cond, val) => {
if frame.status.test(*cond) {
let steps = frame.read(*val)?;
advance = i64::from_ne_bytes(steps.to_ne_bytes());
self.program.validate_jump(frame.pc, Addr((frame.pc.0 as i64 + advance) as u64))?;
}
}
Op::Move { dst, src } => {
frame.status.clear();
let val = frame.read(*src)?;
frame.status.update(val);
frame.write(*dst, val)?;
}
Op::Test { a } => {
frame.status.clear(); frame.status.clear();
let res = frame.read(*a)?; let res = frame.read(*a)?;
frame.status.update(res); frame.status.update(res);
} }
Op::Compare { a, b } => { ArithOp::Compare { a, b } => {
frame.status.clear(); frame.status.clear();
let x = frame.read(*a)?; let x = frame.read(*a)?;
let y = frame.read(*b)?; let y = frame.read(*b)?;
@ -132,7 +29,7 @@ impl RunThread {
frame.status.update(x); frame.status.update(x);
} }
} }
Op::Add { dst, a, b } => { ArithOp::Add { dst, a, b } => {
frame.status.clear(); frame.status.clear();
let x = frame.read(*a)?; let x = frame.read(*a)?;
let y = frame.read(*b)?; let y = frame.read(*b)?;
@ -145,7 +42,7 @@ impl RunThread {
frame.status.overflow = ov; frame.status.overflow = ov;
frame.write(*dst, res)?; frame.write(*dst, res)?;
} }
Op::Sub { dst, a, b } => { ArithOp::Sub { dst, a, b } => {
frame.status.clear(); frame.status.clear();
let x = frame.read(*a)?; let x = frame.read(*a)?;
let y = frame.read(*b)?; let y = frame.read(*b)?;
@ -158,7 +55,7 @@ impl RunThread {
frame.status.overflow = ov; frame.status.overflow = ov;
frame.write(*dst, res)?; frame.write(*dst, res)?;
} }
Op::Mul { dst, a, b } => { ArithOp::Mul { dst, a, b } => {
frame.status.clear(); frame.status.clear();
let x = frame.read(*a)?; let x = frame.read(*a)?;
let y = frame.read(*b)?; let y = frame.read(*b)?;
@ -171,7 +68,7 @@ impl RunThread {
frame.status.overflow = ov; frame.status.overflow = ov;
frame.write(*dst, res)?; frame.write(*dst, res)?;
} }
Op::Div { dst, rem, a, div } => { ArithOp::Div { dst, rem, a, div } => {
frame.status.clear(); frame.status.clear();
let x = frame.read(*a)?; let x = frame.read(*a)?;
let d = frame.read(*div)?; let d = frame.read(*div)?;
@ -189,7 +86,7 @@ impl RunThread {
frame.write(*rem, remainder)?; frame.write(*rem, remainder)?;
} }
} }
Op::Mod { dst, a, div } => { ArithOp::Mod { dst, a, div } => {
frame.status.clear(); frame.status.clear();
let x = frame.read(*a)?; let x = frame.read(*a)?;
let d = frame.read(*div)?; let d = frame.read(*div)?;
@ -206,7 +103,7 @@ impl RunThread {
frame.write(*dst, remainder)?; frame.write(*dst, remainder)?;
} }
} }
Op::And { dst, a, b } => { ArithOp::And { dst, a, b } => {
frame.status.clear(); frame.status.clear();
let x = frame.read(*a)?; let x = frame.read(*a)?;
let y = frame.read(*b)?; let y = frame.read(*b)?;
@ -214,7 +111,7 @@ impl RunThread {
frame.status.update(res); frame.status.update(res);
frame.write(*dst, res)?; frame.write(*dst, res)?;
} }
Op::Or { dst, a, b } => { ArithOp::Or { dst, a, b } => {
frame.status.clear(); frame.status.clear();
let x = frame.read(*a)?; let x = frame.read(*a)?;
let y = frame.read(*b)?; let y = frame.read(*b)?;
@ -222,7 +119,7 @@ impl RunThread {
frame.status.update(res); frame.status.update(res);
frame.write(*dst, res)?; frame.write(*dst, res)?;
} }
Op::Xor { dst, a, b } => { ArithOp::Xor { dst, a, b } => {
frame.status.clear(); frame.status.clear();
let x = frame.read(*a)?; let x = frame.read(*a)?;
let y = frame.read(*b)?; let y = frame.read(*b)?;
@ -230,14 +127,14 @@ impl RunThread {
frame.status.update(res); frame.status.update(res);
frame.write(*dst, res)?; frame.write(*dst, res)?;
} }
Op::Cpl { dst, a } => { ArithOp::Cpl { dst, a } => {
frame.status.clear(); frame.status.clear();
let x = frame.read(*a)?; let x = frame.read(*a)?;
let res = !x; let res = !x;
frame.status.update(res); frame.status.update(res);
frame.write(*dst, res)?; frame.write(*dst, res)?;
} }
Op::Rol { dst, a, n } => { ArithOp::Rol { dst, a, n } => {
frame.status.clear(); frame.status.clear();
let x = frame.read(*a)?; let x = frame.read(*a)?;
let y = frame.read(*n)?; let y = frame.read(*n)?;
@ -249,7 +146,7 @@ impl RunThread {
frame.write(*dst, res)?; frame.write(*dst, res)?;
} }
} }
Op::Ror { dst, a, n } => { ArithOp::Ror { dst, a, n } => {
frame.status.clear(); frame.status.clear();
let x = frame.read(*a)?; let x = frame.read(*a)?;
let y = frame.read(*n)?; let y = frame.read(*n)?;
@ -261,7 +158,7 @@ impl RunThread {
frame.write(*dst, res)?; frame.write(*dst, res)?;
} }
} }
Op::Lsl { dst, a, n } => { ArithOp::Lsl { dst, a, n } => {
frame.status.clear(); frame.status.clear();
let x = frame.read(*a)?; let x = frame.read(*a)?;
let y = frame.read(*n)?; let y = frame.read(*n)?;
@ -269,7 +166,7 @@ impl RunThread {
frame.status.update(res); frame.status.update(res);
frame.write(*dst, res)?; frame.write(*dst, res)?;
} }
Op::Lsr { dst, a, n } => { ArithOp::Lsr { dst, a, n } => {
frame.status.clear(); frame.status.clear();
let x = frame.read(*a)?; let x = frame.read(*a)?;
let y = frame.read(*n)?; let y = frame.read(*n)?;
@ -277,7 +174,7 @@ impl RunThread {
frame.status.update(res); frame.status.update(res);
frame.write(*dst, res)?; frame.write(*dst, res)?;
} }
Op::Asr { dst, a, n } => { ArithOp::Asr { dst, a, n } => {
frame.status.clear(); frame.status.clear();
let x = frame.read(*a)?; let x = frame.read(*a)?;
let y = frame.read(*n)?; let y = frame.read(*n)?;
@ -289,19 +186,10 @@ impl RunThread {
frame.write(*dst, res)?; frame.write(*dst, res)?;
} }
} }
Op::StoreStatus { dst } => {
let packed = frame.status.store();
frame.write(*dst, packed)?;
}
Op::LoadStatus { src } => {
let x = frame.read(*src)?;
frame.status.load(x);
}
} }
Ok(EvalRes { Ok(())
cycles,
advance,
})
} }
//
} }

6
crsn_arith/src/lib.rs
Unescape View File

@ -0,0 +1,6 @@
pub use parse::ArithOpParser;
mod defs;
mod parse;
mod exec;

452
crsn_arith/src/parse.rs
Unescape View File

@ -0,0 +1,452 @@
use crsn::asm::data::{Rd, Wr};
use crsn::asm::error::{AsmError, Error};
use crsn::asm::instr::op::{OpParser, OpTrait};
use crsn::asm::parse::parse_data::{parse_rd, parse_wr};
use crsn::sexp::Sexp;
use crate::defs::ArithOp;
#[derive(Debug, Clone)]
pub struct ArithOpParser {
_internal: ()
}
impl ArithOpParser {
pub fn new() -> Box<dyn OpParser> {
Box::new(Self {
_internal: ()
})
}
}
impl OpParser for ArithOpParser {
fn parse_op(&self, keyword: &str, _far: bool, arg_tokens_sl: Vec<Sexp>) -> Result<Box<dyn OpTrait>, Error> {
let mut arg_tokens = arg_tokens_sl.into_iter();
Ok(Box::new(match keyword {
"cmp" => {
ArithOp::Compare {
a: parse_rd(arg_tokens.next())?,
b: parse_rd(arg_tokens.next())?,
}
}
"tst" => {
let arg = parse_rd(arg_tokens.next())?;
ArithOp::Test { a: arg }
}
"inc" => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Add {
dst,
a: dst.as_rd(),
b: Rd::immediate(1),
}
}
"dec" => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Sub {
dst,
a: dst.as_rd(),
b: Rd::immediate(1),
}
}
"add" => {
match arg_tokens.len() {
3 => {
ArithOp::Add {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
b: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Add {
dst,
a: dst.as_rd(),
b: parse_rd(arg_tokens.next())?,
}
}
_ => {
return Err(Error::Parse("Add requires 2 or 3 arguments".into()));
}
}
}
"sub" => {
match arg_tokens.len() {
3 => {
ArithOp::Sub {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
b: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Sub {
dst,
a: dst.as_rd(),
b: parse_rd(arg_tokens.next())?,
}
}
_ => {
return Err(Error::Parse("Sub requires 2 or 3 arguments".into()));
}
}
}
"mul" => {
match arg_tokens.len() {
3 => {
ArithOp::Mul {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
b: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Mul {
dst,
a: dst.as_rd(),
b: parse_rd(arg_tokens.next())?,
}
}
_ => {
return Err(Error::Parse("Mul requires 2 or 3 arguments".into()));
}
}
}
"divr" => {
match arg_tokens.len() {
3 => {
let dst = parse_wr(arg_tokens.next())?;
let rem = parse_wr(arg_tokens.next())?;
let div = parse_rd(arg_tokens.next())?;
ArithOp::Div {
dst,
rem,
a: dst.as_rd(),
div,
}
}
4 => {
ArithOp::Div {
dst: parse_wr(arg_tokens.next())?,
rem: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
div: parse_rd(arg_tokens.next())?,
}
}
_ => {
return Err(Error::Parse("DivR requires 3 or 4 arguments".into()));
}
}
}
"div" => {
match arg_tokens.len() {
3 => {
ArithOp::Div {
dst: parse_wr(arg_tokens.next())?,
rem: Wr::discard(),
a: parse_rd(arg_tokens.next())?,
div: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
let div = parse_rd(arg_tokens.next())?;
ArithOp::Div {
dst,
rem: Wr::discard(),
a: dst.as_rd(),
div,
}
}
_ => {
return Err(Error::Parse("Div requires 2 or 3 arguments".into()));
}
}
}
"mod" => {
match arg_tokens.len() {
3 => {
ArithOp::Mod {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
div: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
let div = parse_rd(arg_tokens.next())?;
ArithOp::Mod {
dst,
a: dst.as_rd(),
div,
}
}
_ => {
return Err(Error::Parse("Mod requires 2 or 3 arguments".into()));
}
}
}
"and" => {
match arg_tokens.len() {
3 => {
ArithOp::And {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
b: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::And {
dst,
a: dst.as_rd(),
b: parse_rd(arg_tokens.next())?,
}
}
_ => {
return Err(Error::Parse("And requires 2 or 3 arguments".into()));
}
}
}
"or" => {
match arg_tokens.len() {
3 => {
ArithOp::Or {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
b: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Or {
dst,
a: dst.as_rd(),
b: parse_rd(arg_tokens.next())?,
}
}
_ => {
return Err(Error::Parse("Or requires 2 or 3 arguments".into()));
}
}
}
"xor" => {
match arg_tokens.len() {
3 => {
ArithOp::Xor {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
b: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Xor {
dst,
a: dst.as_rd(),
b: parse_rd(arg_tokens.next())?,
}
}
_ => {
return Err(Error::Parse("Xor requires 2 or 3 arguments".into()));
}
}
}
"cpl" => {
match arg_tokens.len() {
2 => {
ArithOp::Cpl {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
}
}
1 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Cpl {
dst,
a: dst.as_rd(),
}
}
_ => {
return Err(Error::Parse("Cpl requires 1 or 2 arguments".into()));
}
}
}
"rol" => {
match arg_tokens.len() {
3 => {
ArithOp::Rol {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
n: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Rol {
dst,
a: dst.as_rd(),
n: parse_rd(arg_tokens.next())?,
}
}
1 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Rol {
dst,
a: dst.as_rd(),
n: Rd::immediate(1),
}
}
_ => {
return Err(Error::Parse("Rol requires 1, 2 or 3 arguments".into()));
}
}
}
"ror" => {
match arg_tokens.len() {
3 => {
ArithOp::Ror {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
n: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Ror {
dst,
a: dst.as_rd(),
n: parse_rd(arg_tokens.next())?,
}
}
1 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Ror {
dst,
a: dst.as_rd(),
n: Rd::immediate(1),
}
}
_ => {
return Err(Error::Parse("Ror requires 1, 2 or 3 arguments".into()));
}
}
}
"lsl" | "asl" => {
match arg_tokens.len() {
3 => {
ArithOp::Lsl {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
n: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Lsl {
dst,
a: dst.as_rd(),
n: parse_rd(arg_tokens.next())?,
}
}
1 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Lsl {
dst,
a: dst.as_rd(),
n: Rd::immediate(1),
}
}
_ => {
return Err(Error::Parse("Lsl requires 1, 2 or 3 arguments".into()));
}
}
}
"lsr" => {
match arg_tokens.len() {
3 => {
ArithOp::Lsr {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
n: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Lsr {
dst,
a: dst.as_rd(),
n: parse_rd(arg_tokens.next())?,
}
}
1 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Lsr {
dst,
a: dst.as_rd(),
n: Rd::immediate(1),
}
}
_ => {
return Err(Error::Parse("Lsr requires 1, 2 or 3 arguments".into()));
}
}
}
"asr" => {
match arg_tokens.len() {
3 => {
ArithOp::Asr {
dst: parse_wr(arg_tokens.next())?,
a: parse_rd(arg_tokens.next())?,
n: parse_rd(arg_tokens.next())?,
}
}
2 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Asr {
dst,
a: dst.as_rd(),
n: parse_rd(arg_tokens.next())?,
}
}
1 => {
let dst = parse_wr(arg_tokens.next())?;
ArithOp::Asr {
dst,
a: dst.as_rd(),
n: Rd::immediate(1),
}
}
_ => {
return Err(Error::Parse("Asr requires 1, 2 or 3 arguments".into()));
}
}
}
_other => {
return Err(Error::Asm(AsmError::UnknownInstruction));
}
}))
}
}

16
launcher/Cargo.toml
Unescape View File

@ -0,0 +1,16 @@
[package]
name = "launcher"
version = "0.1.0"
authors = ["Ondřej Hruška <ondra@ondrovo.com>"]
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
crsn = { path = "../crsn" }
crsn_arith = { path = "../crsn_arith" }
simple_logger = "1.9.0"
log = "0.4.11"
thiserror = "1.0.20"
anyhow = "1.0.32"

13
crsn/src/main.rs → launcher/src/main.rs
Unescape View File

@ -3,9 +3,10 @@ extern crate log;
use simple_logger::SimpleLogger; use simple_logger::SimpleLogger;
use asm::data::literal::Addr; use crsn::asm::data::literal::Addr;
use runtime::program::Program; use crsn::runtime::program::Program;
use runtime::run_thread::{RunThread, ThreadToken}; use crsn::runtime::run_thread::{RunThread, ThreadToken};
use crsn_arith::ArithOpParser;
fn main() { fn main() {
SimpleLogger::new().init().unwrap(); SimpleLogger::new().init().unwrap();
@ -61,7 +62,11 @@ fn main() {
) )
"; ";
let parsed = asm::assemble(program).unwrap(); let parsers = vec![
ArithOpParser::new()
];
let parsed = crsn::asm::assemble(program, parsers.as_slice()).unwrap();
debug!("---"); debug!("---");
for op in &parsed { for op in &parsed {
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