Croissant Runtime
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crsn/crsn/src/asm/instr/op.rs

43 lines
1.0 KiB

use std::fmt::Debug;
use crate::asm::instr::Cond;
use crate::builtin::defs::BuiltinOp;
use crate::module::{EvalRes, OpTrait};
use crate::runtime::fault::Fault;
use crate::runtime::run_thread::{info::ThreadInfo, state::RunState};
/// A higher level simple opration
#[derive(Debug)]
pub enum OpKind {
BuiltIn(BuiltinOp),
/// Instruction added by an extension
Ext(Box<dyn OpTrait>),
}
#[derive(Debug)]
pub struct Op {
pub cond: Option<Cond>,
pub kind: OpKind,
}
impl OpTrait for Op {
fn execute(&self, ti: &ThreadInfo, state: &mut RunState) -> Result<EvalRes, Fault> {
if let Some(cond) = self.cond {
if !state.test_cond(cond) {
return Ok(EvalRes {
cycles: 0,
advance: 1,
});
}
}
match &self.kind {
OpKind::BuiltIn(op) => {
op.execute(ti, state)
}
OpKind::Ext(op) => {
op.execute(ti, state)
}
}
}
}