1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133

#[cfg(export_lexers)]
use std::io::Write;
use std::str::FromStr;

use once_cell::sync::Lazy;
use strum::VariantArray;

#[cfg(export_lexers)]
use super::super::super::basic::{
    interface::parser::{export_list, export_pair},
    parser::lexer::RISCVOpToken,
};
use super::{
    super::super::{
        basic::{
            interface::parser::{ParserRISCVCsr, ParserRISCVInstOp, ParserRISCVRegister},
            parser::{lexer::Symbol, parser::RISCVSymbolList},
        },
        rv32i::constants::{RV32ICsr, RV32IInstruction, RV32IRegister, RV32I_REGISTER_VALID_NAME},
    },
    lexer::RV32IOpToken,
};

pub static RV32I_SYMBOL_LIST: Lazy<RISCVSymbolList> = Lazy::new(|| vec![&OP_TOKEN, &REG_TOKEN]);

pub static OP_TOKEN: Lazy<Vec<(&'static str, Symbol<'static>)>> = Lazy::new(|| {
    OP_TOKEN_STASH
        .iter()
        .map(|op| (op.0.as_str(), op.1))
        .collect()
});

pub static REG_TOKEN: Lazy<Vec<(&'static str, Symbol<'static>)>> = Lazy::new(|| {
    RV32I_REGISTER_VALID_NAME
        .iter()
        .map(|reg| {
            (
                *reg,
                Symbol::Reg(RV32IRegister::from_str(reg).unwrap().into()),
            )
        })
        .collect()
});

pub static CSR_TOKEN: Lazy<Vec<(&'static str, Symbol<'static>)>> = Lazy::new(|| {
    RV32ICsr::VARIANTS
        .iter()
        .map(|&csr| (csr.into(), Symbol::Csr(csr.into())))
        .collect()
});

#[cfg(export_lexers)]
pub fn export(folder: &str) -> std::io::Result<()> {
    let path = format!("{}/rv32i.json", folder);
    let mut file = std::fs::File::create(&path)?;
    let mut output = std::io::BufWriter::new(&mut file);
    let indent = {
        const LEVEL: usize = 5;
        let mut indent: [String; LEVEL] = Default::default();
        for i in 0..LEVEL {
            indent[i] = "    ".repeat(i);
        }
        indent
    };
    output.write(format!("{}{{\n", indent[0]).as_bytes())?;
    output.write(format!("{}\"directive\": ", indent[1]).as_bytes())?;
    export_list(
        &[
            ".align", ".ascii", ".asciz", ".byte", ".data", ".double", ".dword", ".eqv", ".extern",
            ".float", ".global", ".half", ".include", ".section", ".space", ".string", ".text",
            ".word",
        ],
        |&dir| Ok(dir),
        [&indent[1], &indent[2]],
        &mut output,
    )?;
    output.write(",\n".as_bytes())?;
    output.write(format!("{}\"register\": ", indent[1]).as_bytes())?;
    export_pair(
        &RV32I_REGISTER_VALID_NAME,
        |&name| name,
        |&name, output| {
            output.write(format!("\"{}\"", RV32IRegister::from_str(name).unwrap()).as_bytes())?;
            Ok(())
        },
        [&indent[1], &indent[2]],
        &mut output,
    )?;
    output.write(",\n".as_bytes())?;
    output.write(format!("{}\"operator\": ", indent[1]).as_bytes())?;
    export_pair(
        RV32IOpToken::VARIANTS,
        |&op| op.name(),
        |&op, output| {
            export_list(
                Into::<RISCVOpToken>::into(op).get_opd_set().as_slice(),
                |opd_set| Ok(opd_set.hint.clone()),
                [&indent[2], &indent[3]],
                output,
            )
        },
        [&indent[1], &indent[2]],
        &mut output,
    )?;
    output.write("\n".as_bytes())?;
    output.write(format!("{}}}", indent[0]).as_bytes())?;
    Ok(())
}

static OP_TOKEN_STASH: Lazy<Vec<(String, Symbol<'static>)>> = Lazy::new(|| {
    RV32IOpToken::VARIANTS
        .iter()
        .map(|&op| (op.name(), Symbol::Op(op.into())))
        .collect()
});

impl From<RV32IRegister> for ParserRISCVRegister {
    fn from(reg: RV32IRegister) -> Self {
        ParserRISCVRegister::RV32I(reg)
    }
}

impl From<RV32IInstruction> for ParserRISCVInstOp {
    fn from(inst: RV32IInstruction) -> Self {
        ParserRISCVInstOp::RV32I(inst)
    }
}

impl From<RV32ICsr> for ParserRISCVCsr {
    fn from(csr: RV32ICsr) -> Self {
        ParserRISCVCsr::RV32I(csr)
    }
}