74 lines
1.4 KiB
Plaintext
74 lines
1.4 KiB
Plaintext
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use std::str::FromStr;
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use crate::vm::{
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syn::ast::*,
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};
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grammar;
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// TODO : instkind
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InstOp: InstOp = {
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"add" => InstOp::Add,
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"mul" => InstOp::Mul,
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"div" => InstOp::Div,
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"neg" => InstOp::Neg,
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"and" => InstOp::And,
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"or" => InstOp::Or,
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"xor" => InstOp::Xor,
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"shl" => InstOp::Shl,
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"shr" => InstOp::Shr,
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"cmpeq" => InstOp::CmpEq,
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"cmplt" => InstOp::CmpLt,
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"jz" => InstOp::Jz,
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"jnz" => InstOp::Jnz,
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"load" => InstOp::Load,
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"store" => InstOp::Store,
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"storeimm" => InstOp::StoreImm,
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"copy" => InstOp::Copy,
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"nop" => InstOp::Nop,
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"halt" => InstOp::Halt,
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}
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LabelDef: String = {
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<Label> ":" => <>
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}
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pub Label: String = {
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"[a-zA-Z]+" => String::from(<>),
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}
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pub Section: Section = {
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".code" => Section::Code,
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".data" => Section::Data,
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}
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pub Inst: Inst = {
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<op:InstOp> <head:Value> <tail:("," <Value>)+> => {
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Inst {
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op,
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args: {
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let mut tail = tail;
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tail.insert(0, head);
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tail
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}
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}
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},
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<op:InstOp> <head:Value?> => {
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Inst { op, args: if let Some(head) = head { vec![head] } else { vec![] } }
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}
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}
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pub Value: Value = {
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<Number> => Value::Number(<>),
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<Label> => Value::Label(<>),
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}
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pub Number: u64 = {
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<s:r"[0-9]+"> => u64::from_str(s).unwrap()
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}
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pub Line: Line = {
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<Section> => Line::Section(<>),
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<Inst> => Line::Inst(<>),
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}
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