diff --git a/.gitignore b/.gitignore
index d517caf..7bacca3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@
 *.log
 .vscode/
 /vendor
+/tmp
diff --git a/Cargo.toml b/Cargo.toml
index 91b26b6..58f5d9e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -79,7 +79,7 @@ circus-arc = ["circus"]
 circus-audio = ["circus", "flate2", "int-enum", "lossless-audio"]
 circus-img = ["circus", "image", "flate2", "zstd"]
 emote-img = ["base64", "emote-psb", "image", "json", "libtlg-rs", "url"]
-entis-gls = ["xml5ever", "markup5ever", "markup5ever_rcdom"]
+entis-gls = ["xml5ever", "markup5ever", "markup5ever_rcdom", "int-enum"]
 escude = ["int-enum"]
 escude-arc = ["escude", "rand", "utils-bit-stream"]
 ex-hibit = []
diff --git a/src/scripts/entis_gls/csx/mod.rs b/src/scripts/entis_gls/csx/mod.rs
new file mode 100644
index 0000000..23ce58f
--- /dev/null
+++ b/src/scripts/entis_gls/csx/mod.rs
@@ -0,0 +1,3 @@
+//! Ported from Crsky/EntisGLS_Tools C# project
+//! Original license: GPL-3.0
+pub mod v1;
diff --git a/src/scripts/entis_gls/csx/v1/disasm.rs b/src/scripts/entis_gls/csx/v1/disasm.rs
new file mode 100644
index 0000000..ae0a37a
--- /dev/null
+++ b/src/scripts/entis_gls/csx/v1/disasm.rs
@@ -0,0 +1,560 @@
+use super::types::*;
+use crate::ext::io::*;
+use crate::types::*;
+use crate::utils::struct_pack::*;
+use anyhow::Result;
+use std::io::{Seek, Write};
+
+use CSCompareType::*;
+use CSInstructionCode::*;
+use CSObjectMode::*;
+use CSOperatorType::*;
+use CSUnaryOperatorType::*;
+use CSVariableType::*;
+
+fn escape_string(s: &str) -> String {
+    s.replace("\r", "\\r")
+        .replace("\n", "\\n")
+        .replace("\t", "\\t")
+}
+
+pub struct ECSExecutionImageDisassembler<'a> {
+    stream: MemReaderRef<'a>,
+    conststr: Option<&'a TaggedRefAddressList>,
+    assembly: ECSExecutionImageAssembly,
+    writer: Option<Box<dyn Write + 'a>>,
+    addr: u32,
+    code: CSInstructionCode,
+}
+
+impl<'a> ECSExecutionImageDisassembler<'a> {
+    pub fn new(
+        stream: MemReaderRef<'a>,
+        conststr: Option<&'a TaggedRefAddressList>,
+        writer: Option<Box<dyn Write + 'a>>,
+    ) -> Self {
+        Self {
+            stream,
+            conststr,
+            assembly: ECSExecutionImageAssembly {
+                command_list: Vec::new(),
+            },
+            writer,
+            addr: 0,
+            code: CsicNew,
+        }
+    }
+
+    pub fn execute(&mut self) -> Result<()> {
+        let len = self.stream.data.len();
+        while self.stream.pos < len {
+            self.addr = self.stream.pos as u32;
+            let code_value = self.stream.read_u8()?;
+            self.code = CSInstructionCode::try_from(code_value).map_err(|_| {
+                anyhow::anyhow!(
+                    "Invalid CSInstructionCode value: {} at {:08x}",
+                    code_value,
+                    self.addr
+                )
+            })?;
+            match self.code {
+                CsicNew => {
+                    self.command_new()?;
+                }
+                CsicFree => {
+                    self.command_free()?;
+                }
+                CsicLoad => {
+                    self.command_load()?;
+                }
+                CsicStore => {
+                    self.command_store()?;
+                }
+                CsicEnter => {
+                    self.command_enter()?;
+                }
+                CsicLeave => {
+                    self.command_leave()?;
+                }
+                CsicJump => {
+                    self.command_jump()?;
+                }
+                CsicCJump => {
+                    self.command_cjump()?;
+                }
+                CsicCall => {
+                    self.command_call()?;
+                }
+                CsicReturn => {
+                    self.command_return()?;
+                }
+                CsicElement => {
+                    self.command_element()?;
+                }
+                CsicElementIndirect => {
+                    self.command_element_indirect()?;
+                }
+                CsicOperate => {
+                    self.command_operate()?;
+                }
+                CsicUniOperate => {
+                    self.command_uni_operate()?;
+                }
+                CsicCompare => {
+                    self.command_compare()?;
+                }
+            }
+            let size = self.stream.pos as u32 - self.addr;
+            self.assembly
+                .command_list
+                .push(ECSExecutionImageCommandRecord {
+                    code: self.code,
+                    addr: self.addr,
+                    size,
+                    new_addr: self.addr,
+                });
+        }
+        Ok(())
+    }
+
+    fn line<S: AsRef<str> + ?Sized>(&mut self, line: &S) -> anyhow::Result<()> {
+        if let Some(writer) = &mut self.writer {
+            writeln!(writer, "{:08x} {}", self.addr, line.as_ref())?;
+        }
+        Ok(())
+    }
+
+    fn get_string_literal2(&mut self) -> Result<(Option<usize>, String)> {
+        let length = self.stream.read_u32()?;
+        if length != 0x80000000 {
+            self.stream.seek_relative(-4)?;
+            let s = WideString::unpack(&mut self.stream, false, Encoding::Utf16LE)?.0;
+            Ok((None, s))
+        } else if let Some(conststr) = &self.conststr {
+            let index = self.stream.read_u32()? as usize;
+            match conststr.get(index) {
+                Some(s) => Ok((Some(index), s.tag.0.clone())),
+                None => Err(anyhow::anyhow!(
+                    "Invalid string literal index: {} (max {})",
+                    index,
+                    conststr.len()
+                )),
+            }
+        } else {
+            Err(anyhow::anyhow!(
+                "No constant string table for string literal index"
+            ))
+        }
+    }
+
+    fn get_string_literal(&mut self) -> Result<String> {
+        let (_, s) = self.get_string_literal2()?;
+        Ok(s)
+    }
+
+    fn read_csct(&mut self) -> Result<CSCompareType> {
+        let value = self.stream.read_u8()?;
+        CSCompareType::try_from(value).map_err(|_| {
+            anyhow::anyhow!(
+                "Invalid CSCompareType value: {} at {:08x}",
+                value,
+                self.addr
+            )
+        })
+    }
+
+    fn read_csom(&mut self) -> Result<CSObjectMode> {
+        let value = self.stream.read_u8()?;
+        CSObjectMode::try_from(value).map_err(|_| {
+            anyhow::anyhow!("Invalid CSObjectMode value: {} at {:08x}", value, self.addr)
+        })
+    }
+
+    fn read_csot(&mut self) -> Result<CSOperatorType> {
+        let value = self.stream.read_u8()?;
+        CSOperatorType::try_from(value).map_err(|_| {
+            anyhow::anyhow!(
+                "Invalid CSOperatorType value: {} at {:08x}",
+                value,
+                self.addr
+            )
+        })
+    }
+
+    fn read_csuot(&mut self) -> Result<CSUnaryOperatorType> {
+        let value = self.stream.read_u8()?;
+        CSUnaryOperatorType::try_from(value).map_err(|_| {
+            anyhow::anyhow!(
+                "Invalid CSUnaryOperatorType value: {} at {:08x}",
+                value,
+                self.addr
+            )
+        })
+    }
+
+    fn read_csvt(&mut self) -> Result<CSVariableType> {
+        let value = self.stream.read_u8()?;
+        CSVariableType::try_from(value).map_err(|_| {
+            anyhow::anyhow!(
+                "Invalid CSVariableType value: {} at {:08x}",
+                value,
+                self.addr
+            )
+        })
+    }
+
+    fn command_new(&mut self) -> Result<()> {
+        let csom = self.read_csom()?;
+        let typ = self.read_csvt()?;
+        let class_name = if typ == CsvtObject {
+            Some(self.get_string_literal()?)
+        } else {
+            None
+        };
+        let name = self.get_string_literal()?;
+        let pobj = match csom {
+            CsomStack => "stack",
+            CsomThis => "this",
+            _ => {
+                return Err(anyhow::anyhow!(
+                    "Invalid CSObjectMode for 'new' instruction: {:?} at {:08x}",
+                    csom,
+                    self.addr
+                ));
+            }
+        };
+        match &class_name {
+            Some(class_name) => {
+                self.line(&format!("New {pobj} \"{class_name}\" \"{name}\""))?;
+            }
+            None => {
+                self.line(&format!("New {pobj} \"{name}\""))?;
+            }
+        }
+        Ok(())
+    }
+
+    fn command_free(&mut self) -> Result<()> {
+        self.line("Free")?;
+        Ok(())
+    }
+
+    fn command_load(&mut self) -> Result<()> {
+        let csom = self.read_csom()?;
+        let csvt = self.read_csvt()?;
+        if csom == CsomImmediate {
+            match csvt {
+                CsvtObject => {
+                    let class_name = self.get_string_literal()?;
+                    self.line(&format!("Load * {class_name}"))?;
+                }
+                CsvtReference => {
+                    self.line("Load * ECSReference")?;
+                }
+                CsvtArray => {
+                    self.line("Load * ECSArray")?;
+                }
+                CsvtHash => {
+                    self.line("Load * ECSHash")?;
+                }
+                CsvtInteger => {
+                    let val = self.stream.read_u32()?;
+                    self.line(&format!("Load Integer {}", val))?;
+                }
+                CsvtReal => {
+                    let val = self.stream.read_f64()?;
+                    self.line(&format!("Load Real {}", val))?;
+                }
+                CsvtString => {
+                    let t = self.get_string_literal2()?;
+                    let escaped = escape_string(&t.1);
+                    if let Some(index) = t.0 {
+                        self.line(&format!("Load Const String {index} \"{escaped}\""))?;
+                    } else {
+                        self.line(&format!("Load String \"{escaped}\""))?;
+                    }
+                }
+                CsvtInteger64 => {
+                    let val = self.stream.read_u64()?;
+                    self.line(&format!("Load Integer64 {}", val))?;
+                }
+                CsvtPointer => {
+                    let value = self.stream.read_u32()?;
+                    self.line(&format!("Load Pointer {}", value))?;
+                }
+            }
+        } else {
+            let pobj = match csom {
+                CsomStack => "stack",
+                CsomThis => "this",
+                CsomGlobal => "global",
+                CsomData => "data",
+                CsomAuto => "auto",
+                _ => {
+                    return Err(anyhow::anyhow!(
+                        "Invalid CSObjectMode for 'load' instruction: {:?} at {:08x}",
+                        csom,
+                        self.addr
+                    ));
+                }
+            };
+            match csvt {
+                CsvtReference => {
+                    self.line(&format!("Load {pobj}"))?;
+                }
+                CsvtInteger => {
+                    let index = self.stream.read_i32()?;
+                    self.line(&format!("Load {pobj} [{index}]"))?;
+                }
+                CsvtString => {
+                    let name = self.get_string_literal()?;
+                    self.line(&format!("Load {pobj} [\"{name}\"]"))?;
+                }
+                _ => {
+                    return Err(anyhow::anyhow!(
+                        "Invalid CSVariableType for 'load' instruction: {:?} at {:08x}",
+                        csvt,
+                        self.addr
+                    ));
+                }
+            }
+        }
+        Ok(())
+    }
+
+    fn command_store(&mut self) -> Result<()> {
+        let csot = self.read_csot()?;
+        match csot {
+            CsotNop => {
+                self.line("Store")?;
+            }
+            CsotAdd => {
+                self.line("Store Add")?;
+            }
+            CsotSub => {
+                self.line("Store Sub")?;
+            }
+            CsotMul => {
+                self.line("Store Mul")?;
+            }
+            CsotDiv => {
+                self.line("Store Div")?;
+            }
+            CsotMod => {
+                self.line("Store Mod")?;
+            }
+            CsotAnd => {
+                self.line("Store And")?;
+            }
+            CsotOr => {
+                self.line("Store Or")?;
+            }
+            CsotXor => {
+                self.line("Store Xor")?;
+            }
+            CsotLogicalAnd => {
+                self.line("Store LAnd")?;
+            }
+            CsotLogicalOr => {
+                self.line("Store LOr")?;
+            }
+        }
+        Ok(())
+    }
+
+    fn command_enter(&mut self) -> Result<()> {
+        let name = self.get_string_literal()?;
+        let num_args = self.stream.read_i32()?;
+        if num_args != -1 {
+            let mut sb = String::new();
+            sb.push('(');
+            for i in 0..num_args {
+                let csvt = self.read_csvt()?;
+                let class_name = if csvt == CsvtObject {
+                    Some(self.get_string_literal()?)
+                } else {
+                    None
+                };
+                let var_name = self.get_string_literal()?;
+                if let Some(cname) = class_name {
+                    sb.push_str(&format!("{{{}:{}}}", cname, var_name));
+                } else {
+                    sb.push_str(&var_name);
+                }
+                if i < num_args - 1 {
+                    sb.push_str(", ");
+                }
+            }
+            sb.push(')');
+            self.line(&format!("Enter \"{}\" {}", name, sb))?;
+        } else {
+            let flag = self.stream.read_u8()?;
+            if flag != 0 {
+                return Err(anyhow::anyhow!(
+                    "Invalid flag for variable argument 'enter' instruction: {} at {:08x}",
+                    flag,
+                    self.addr
+                ));
+            }
+            let catch_addr = self.stream.read_u32()? + self.stream.pos as u32;
+            self.line(&format!("Enter \"{}\" Try-Catch {:08x}", name, catch_addr))?;
+        }
+        Ok(())
+    }
+
+    fn command_leave(&mut self) -> Result<()> {
+        self.line("Leave")?;
+        Ok(())
+    }
+
+    fn command_jump(&mut self) -> Result<()> {
+        let target_addr = self.stream.read_u32()? as u64 + self.stream.pos as u64;
+        self.line(&format!("Jump {:08x}", target_addr))?;
+        Ok(())
+    }
+
+    fn command_cjump(&mut self) -> Result<()> {
+        let cond = self.stream.read_u8()?;
+        let target_addr = self.stream.read_u32()? as u64 + self.stream.pos as u64;
+        self.line(&format!("CJump {} {:08x}", cond, target_addr))?;
+        Ok(())
+    }
+
+    fn command_call(&mut self) -> Result<()> {
+        let csom = self.read_csom()?;
+        let num_args = self.stream.read_i32()?;
+        let func_name = self.get_string_literal()?;
+        let pobj = match csom {
+            CsomImmediate if func_name == "@CATCH" => "",
+            CsomThis => "this",
+            CsomGlobal => "global",
+            CsomAuto => "auto",
+            _ => {
+                return Err(anyhow::anyhow!(
+                    "Invalid CSObjectMode for 'call' instruction: {:?} at {:08x}",
+                    csom,
+                    self.addr
+                ));
+            }
+        };
+        self.line(&format!("Call {} \"{}\" <{}>", pobj, func_name, num_args))?;
+        Ok(())
+    }
+
+    fn command_return(&mut self) -> Result<()> {
+        let free_stack = self.stream.read_u8()?;
+        self.line(&format!("Return {}", free_stack))?;
+        Ok(())
+    }
+
+    fn command_element(&mut self) -> Result<()> {
+        let csvt = self.read_csvt()?;
+        match csvt {
+            CsvtInteger => {
+                let index = self.stream.read_i32()?;
+                self.line(&format!("Element {}", index))?;
+            }
+            CsvtString => {
+                let name = self.get_string_literal()?;
+                self.line(&format!("Element \"{}\"", name))?;
+            }
+            _ => {
+                return Err(anyhow::anyhow!(
+                    "Invalid CSVariableType for 'element' instruction: {:?} at {:08x}",
+                    csvt,
+                    self.addr
+                ));
+            }
+        }
+        Ok(())
+    }
+
+    fn command_element_indirect(&mut self) -> Result<()> {
+        self.line("ElementIndirect")?;
+        Ok(())
+    }
+
+    fn command_operate(&mut self) -> Result<()> {
+        let csot = self.read_csot()?;
+        match csot {
+            CsotNop => {
+                self.line("Operate Nop")?;
+            }
+            CsotAdd => {
+                self.line("Operate Add")?;
+            }
+            CsotSub => {
+                self.line("Operate Sub")?;
+            }
+            CsotMul => {
+                self.line("Operate Mul")?;
+            }
+            CsotDiv => {
+                self.line("Operate Div")?;
+            }
+            CsotMod => {
+                self.line("Operate Mod")?;
+            }
+            CsotAnd => {
+                self.line("Operate And")?;
+            }
+            CsotOr => {
+                self.line("Operate Or")?;
+            }
+            CsotXor => {
+                self.line("Operate Xor")?;
+            }
+            CsotLogicalAnd => {
+                self.line("Operate LAnd")?;
+            }
+            CsotLogicalOr => {
+                self.line("Operate LOr")?;
+            }
+        }
+        Ok(())
+    }
+
+    fn command_uni_operate(&mut self) -> Result<()> {
+        let csuot = self.read_csuot()?;
+        match csuot {
+            CsuotPlus => {
+                self.line("UnaryOperate Plus")?;
+            }
+            CsuotNegate => {
+                self.line("UnaryOperate Negate")?;
+            }
+            CsuotBitnot => {
+                self.line("UnaryOperate BitNot")?;
+            }
+            CsuotLogicalNot => {
+                self.line("UnaryOperate LNot")?;
+            }
+        }
+        Ok(())
+    }
+
+    fn command_compare(&mut self) -> Result<()> {
+        let csct = self.read_csct()?;
+        match csct {
+            CsctEqual => {
+                self.line("Compare Equal")?;
+            }
+            CsctNotEqual => {
+                self.line("Compare NotEqual")?;
+            }
+            CsctLessThan => {
+                self.line("Compare LessThan")?;
+            }
+            CsctLessEqual => {
+                self.line("Compare LessEqual")?;
+            }
+            CsctGreaterThan => {
+                self.line("Compare GreaterThan")?;
+            }
+            CsctGreaterEqual => {
+                self.line("Compare GreaterEqual")?;
+            }
+        }
+        Ok(())
+    }
+}
diff --git a/src/scripts/entis_gls/csx/v1/img.rs b/src/scripts/entis_gls/csx/v1/img.rs
new file mode 100644
index 0000000..0d73c35
--- /dev/null
+++ b/src/scripts/entis_gls/csx/v1/img.rs
@@ -0,0 +1,186 @@
+use super::disasm::*;
+use super::types::*;
+use crate::ext::io::*;
+use crate::types::*;
+use crate::utils::struct_pack::*;
+use anyhow::Result;
+use std::io::Write;
+
+#[derive(Clone, Debug)]
+#[allow(dead_code)]
+pub struct ECSExecutionImage {
+    file_header: EMCFileHeader,
+    exi_header: Option<Vec<u8>>,
+    header: Option<EXIHeader>,
+    image: MemReader,
+    pif_prologue: DWordArray,
+    pif_epilogue: DWordArray,
+    function_list: FunctionNameList,
+    csg_global: ECSGlobal,
+    csg_data: ECSGlobal,
+    ext_const_str: Option<TaggedRefAddressList>,
+    ext_global_ref: DWordArray,
+    ext_data_ref: DWordArray,
+    imp_global_ref: TaggedRefAddressList,
+    imp_data_ref: TaggedRefAddressList,
+}
+
+impl ECSExecutionImage {
+    pub fn new(mut reader: MemReader) -> Result<Self> {
+        let file_header = EMCFileHeader::unpack(&mut reader, false, Encoding::Utf8)?;
+        // if file_header.signagure != *b"Entis\x1a\0\0" {
+        //     return Err(anyhow::anyhow!("Invalid EMC file signature"));
+        // }
+        let len = reader.data.len();
+        let mut exi_header = None;
+        let mut header = None;
+        let mut image = None;
+        let mut pif_prologue = None;
+        let mut pif_epilogue = None;
+        let mut function_list = None;
+        let mut csg_global = None;
+        let mut int64 = false;
+        let mut csg_data = None;
+        let mut ext_const_str = None;
+        let mut ext_global_ref = DWordArray::default();
+        let mut ext_data_ref = DWordArray::default();
+        let mut imp_global_ref = TaggedRefAddressList::default();
+        let mut imp_data_ref = TaggedRefAddressList::default();
+        while reader.pos < len {
+            if len - reader.pos < 16 {
+                break;
+            }
+            let id = reader.read_u64()?;
+            if id == 0 {
+                break;
+            }
+            let size = reader.read_u64()?;
+            match id {
+                // header
+                0x2020726564616568 => {
+                    let buf = reader.read_exact_vec(size as usize)?;
+                    {
+                        let mut sread = MemReaderRef::new(&buf);
+                        header = Some(EXIHeader::unpack(&mut sread, false, Encoding::Utf8)?);
+                    }
+                    exi_header = Some(buf);
+                    if let Some(hdr) = &header {
+                        if hdr.int_base == 64 {
+                            int64 = true;
+                        }
+                    }
+                }
+                // image
+                0x2020206567616D69 => {
+                    image = Some(MemReader::new(reader.read_exact_vec(size as usize)?));
+                }
+                // function
+                0x6E6F6974636E7566 => {
+                    pif_prologue = Some(DWordArray::unpack(&mut reader, false, Encoding::Utf8)?);
+                    pif_epilogue = Some(DWordArray::unpack(&mut reader, false, Encoding::Utf8)?);
+                    function_list = Some(FunctionNameList::unpack(
+                        &mut reader,
+                        false,
+                        Encoding::Utf8,
+                    )?);
+                }
+                // global
+                0x20206C61626F6C67 => {
+                    let count = reader.read_u32()?;
+                    let mut items = Vec::with_capacity(count as usize);
+                    for _ in 0..count {
+                        let name = WideString::unpack(&mut reader, false, Encoding::Utf16LE)?.0;
+                        let obj = ECSObject::read_from(&mut reader, int64)?;
+                        items.push(ECSObjectItem { name, obj });
+                    }
+                    csg_global = Some(ECSGlobal(items));
+                }
+                // data
+                0x2020202061746164 => {
+                    let count = reader.read_u32()?;
+                    let mut items = Vec::with_capacity(count as usize);
+                    for _ in 0..count {
+                        let name = WideString::unpack(&mut reader, false, Encoding::Utf16LE)?.0;
+                        let length = reader.read_i32()?;
+                        let obj = if length >= 0 {
+                            let mut datas = Vec::with_capacity(length as usize);
+                            for _ in 0..length {
+                                let name =
+                                    WideString::unpack(&mut reader, false, Encoding::Utf16LE)?.0;
+                                let obj = ECSObject::read_from(&mut reader, int64)?;
+                                datas.push(ECSObjectItem { name, obj });
+                            }
+                            ECSObject::Global(ECSGlobal(datas))
+                        } else {
+                            ECSObject::read_from(&mut reader, int64)?
+                        };
+                        items.push(ECSObjectItem { name, obj });
+                    }
+                    csg_data = Some(ECSGlobal(items));
+                }
+                // conststr
+                0x72747374736E6F63 => {
+                    ext_const_str = Some(TaggedRefAddressList::unpack(
+                        &mut reader,
+                        false,
+                        Encoding::Utf8,
+                    )?);
+                }
+                // linkinf
+                0x20666E696B6E696C => {
+                    ext_global_ref = DWordArray::unpack(&mut reader, false, Encoding::Utf8)?;
+                    ext_data_ref = DWordArray::unpack(&mut reader, false, Encoding::Utf8)?;
+                    imp_global_ref =
+                        TaggedRefAddressList::unpack(&mut reader, false, Encoding::Utf8)?;
+                    imp_data_ref =
+                        TaggedRefAddressList::unpack(&mut reader, false, Encoding::Utf8)?;
+                    if !ext_global_ref.is_empty()
+                        || !ext_data_ref.is_empty()
+                        || !imp_global_ref.is_empty()
+                        || !imp_data_ref.is_empty()
+                    {
+                        eprintln!(
+                            "Warning: External/global references(linker data) are not supported and will be ignored. This may cause script rebuild errors."
+                        );
+                        crate::COUNTER.inc_warning();
+                    }
+                }
+                0 => {
+                    break;
+                }
+                _ => {
+                    return Err(anyhow::anyhow!(
+                        "Unknown ECSExecutionImage section ID: 0x{:016X}",
+                        id
+                    ));
+                }
+            }
+        }
+        Ok(Self {
+            file_header,
+            exi_header,
+            header,
+            image: image.ok_or_else(|| anyhow::anyhow!("Missing image data"))?,
+            pif_prologue: pif_prologue.ok_or_else(|| anyhow::anyhow!("Missing PIF prologue"))?,
+            pif_epilogue: pif_epilogue.ok_or_else(|| anyhow::anyhow!("Missing PIF epilogue"))?,
+            function_list: function_list.ok_or_else(|| anyhow::anyhow!("Missing function list"))?,
+            csg_global: csg_global.ok_or_else(|| anyhow::anyhow!("Missing CSG global"))?,
+            csg_data: csg_data.ok_or_else(|| anyhow::anyhow!("Missing CSG data"))?,
+            ext_const_str,
+            ext_global_ref,
+            ext_data_ref,
+            imp_global_ref,
+            imp_data_ref,
+        })
+    }
+
+    pub fn disasm<'a>(&self, writer: Box<dyn Write + 'a>) -> Result<()> {
+        let mut disasm = ECSExecutionImageDisassembler::new(
+            self.image.to_ref(),
+            self.ext_const_str.as_ref(),
+            Some(writer),
+        );
+        disasm.execute()?;
+        Ok(())
+    }
+}
diff --git a/src/scripts/entis_gls/csx/v1/mod.rs b/src/scripts/entis_gls/csx/v1/mod.rs
new file mode 100644
index 0000000..cb30fc7
--- /dev/null
+++ b/src/scripts/entis_gls/csx/v1/mod.rs
@@ -0,0 +1,91 @@
+//! Ported from CSXTools C# project
+//! See parent module documentation for more details.
+mod disasm;
+mod img;
+mod types;
+
+use crate::ext::io::*;
+use crate::scripts::base::*;
+use crate::types::*;
+use anyhow::Result;
+use img::ECSExecutionImage;
+
+#[derive(Debug)]
+pub struct CSXScriptBuilder {}
+
+impl CSXScriptBuilder {
+    pub fn new() -> Self {
+        Self {}
+    }
+}
+
+impl ScriptBuilder for CSXScriptBuilder {
+    fn default_encoding(&self) -> Encoding {
+        Encoding::Utf16LE
+    }
+
+    fn build_script(
+        &self,
+        buf: Vec<u8>,
+        _filename: &str,
+        _encoding: Encoding,
+        _archive_encoding: Encoding,
+        config: &ExtraConfig,
+        _archive: Option<&Box<dyn Script>>,
+    ) -> Result<Box<dyn Script>> {
+        Ok(Box::new(CSXScript::new(buf, config)?))
+    }
+
+    fn extensions(&self) -> &'static [&'static str] {
+        &["csx"]
+    }
+
+    fn script_type(&self) -> &'static ScriptType {
+        &ScriptType::EntisGlsCsx1
+    }
+
+    fn is_this_format(&self, _filename: &str, buf: &[u8], buf_len: usize) -> Option<u8> {
+        if buf_len >= 8 && &buf[0..8] == b"Entis\x1a\0\0" {
+            Some(30)
+        } else {
+            None
+        }
+    }
+}
+
+#[derive(Debug)]
+pub struct CSXScript {
+    img: ECSExecutionImage,
+}
+
+impl CSXScript {
+    pub fn new(buf: Vec<u8>, _config: &ExtraConfig) -> Result<Self> {
+        let reader = MemReader::new(buf);
+        let img = ECSExecutionImage::new(reader)?;
+        Ok(Self { img })
+    }
+}
+
+impl Script for CSXScript {
+    fn default_output_script_type(&self) -> OutputScriptType {
+        OutputScriptType::Custom
+    }
+
+    fn is_output_supported(&self, output: OutputScriptType) -> bool {
+        matches!(output, OutputScriptType::Custom)
+    }
+
+    fn default_format_type(&self) -> FormatOptions {
+        FormatOptions::None
+    }
+
+    fn custom_output_extension<'a>(&'a self) -> &'a str {
+        "s"
+    }
+
+    fn custom_export(&self, filename: &std::path::Path, _encoding: Encoding) -> Result<()> {
+        let file = crate::utils::files::write_file(filename)?;
+        self.img.disasm(Box::new(file))?;
+        Ok(())
+    }
+}
diff --git a/src/scripts/entis_gls/csx/v1/types.rs b/src/scripts/entis_gls/csx/v1/types.rs
new file mode 100644
index 0000000..0cd3353
--- /dev/null
+++ b/src/scripts/entis_gls/csx/v1/types.rs
@@ -0,0 +1,320 @@
+use crate::ext::io::*;
+use crate::types::*;
+use crate::utils::encoding::*;
+use crate::utils::struct_pack::*;
+use anyhow::Result;
+use int_enum::IntEnum;
+use msg_tool_macro::{StructPack, StructUnpack};
+use std::io::{Read, Seek, Write};
+use std::ops::{Deref, DerefMut};
+
+#[repr(u8)]
+#[derive(Debug, IntEnum, PartialEq, Eq, Clone, Copy)]
+pub enum CSCompareType {
+    CsctNotEqual,
+    CsctEqual,
+    CsctLessThan,
+    CsctLessEqual,
+    CsctGreaterThan,
+    CsctGreaterEqual,
+}
+
+#[repr(u8)]
+#[derive(Debug, IntEnum, PartialEq, Eq, Clone, Copy)]
+pub enum CSInstructionCode {
+    CsicNew,
+    CsicFree,
+    CsicLoad,
+    CsicStore,
+    CsicEnter,
+    CsicLeave,
+    CsicJump,
+    CsicCJump,
+    CsicCall,
+    CsicReturn,
+    CsicElement,
+    CsicElementIndirect,
+    CsicOperate,
+    CsicUniOperate,
+    CsicCompare,
+}
+
+#[repr(u8)]
+#[derive(Debug, IntEnum, PartialEq, Eq, Clone, Copy)]
+pub enum CSObjectMode {
+    CsomImmediate,
+    CsomStack,
+    CsomThis,
+    CsomGlobal,
+    CsomData,
+    CsomAuto,
+}
+
+#[repr(u8)]
+#[derive(Debug, IntEnum, PartialEq, Eq, Clone, Copy)]
+pub enum CSOperatorType {
+    CsotNop = 0xFF,
+    CsotAdd = 0,
+    CsotSub,
+    CsotMul,
+    CsotDiv,
+    CsotMod,
+    CsotAnd,
+    CsotOr,
+    CsotXor,
+    CsotLogicalAnd,
+    CsotLogicalOr,
+}
+
+#[repr(u8)]
+#[derive(Debug, IntEnum, PartialEq, Eq, Clone, Copy)]
+pub enum CSUnaryOperatorType {
+    CsuotPlus,
+    CsuotNegate,
+    CsuotBitnot,
+    CsuotLogicalNot,
+}
+
+#[repr(u8)]
+#[derive(Debug, IntEnum, PartialEq, Eq, Clone, Copy)]
+pub enum CSVariableType {
+    CsvtObject,
+    CsvtReference,
+    CsvtArray,
+    CsvtHash,
+    CsvtInteger,
+    CsvtReal,
+    CsvtString,
+    CsvtInteger64,
+    CsvtPointer,
+}
+
+#[derive(Clone, Debug, StructPack, StructUnpack)]
+pub struct EMCFileHeader {
+    pub signagure: [u8; 8],
+    pub file_id: u32,
+    pub _reserved: u32,
+    pub format_desc: [u8; 48],
+}
+
+#[derive(Clone, Debug, StructPack, StructUnpack)]
+pub struct EXIHeader {
+    #[skip_unpack_if(reader.stream_length()? < 4)]
+    pub version: u32,
+    #[skip_unpack_if(reader.stream_length()? < 8)]
+    pub int_base: u32,
+}
+
+#[derive(Clone, Debug, Default, StructPack, StructUnpack)]
+pub struct DWordArray {
+    #[pvec(u32)]
+    pub data: Vec<u32>,
+}
+
+impl Deref for DWordArray {
+    type Target = Vec<u32>;
+
+    fn deref(&self) -> &Self::Target {
+        &self.data
+    }
+}
+
+impl DerefMut for DWordArray {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.data
+    }
+}
+
+#[derive(Clone, Debug)]
+pub struct WideString(pub String);
+
+impl StructUnpack for WideString {
+    fn unpack<R: Read + Seek>(reader: &mut R, big: bool, encoding: Encoding) -> Result<Self> {
+        let length = u32::unpack(reader, big, encoding)? as usize;
+        let to_read = length * 2;
+        let buf = reader.read_exact_vec(to_read)?;
+        let enc = if big {
+            Encoding::Utf16BE
+        } else {
+            Encoding::Utf16LE
+        };
+        let s = decode_to_string(enc, &buf, true)?;
+        Ok(Self(s))
+    }
+}
+
+impl StructPack for WideString {
+    fn pack<W: Write>(&self, writer: &mut W, big: bool, encoding: Encoding) -> Result<()> {
+        let enc = if big {
+            Encoding::Utf16BE
+        } else {
+            Encoding::Utf16LE
+        };
+        let encoded = encode_string(enc, &self.0, false)?;
+        let length = (encoded.len() / 2) as u32;
+        length.pack(writer, big, encoding)?;
+        writer.write_all(&encoded)?;
+        Ok(())
+    }
+}
+
+#[derive(Clone, Debug, StructPack, StructUnpack)]
+pub struct FunctionNameItem {
+    pub addr: u32,
+    pub name: WideString,
+}
+
+#[derive(Clone, Debug, StructPack, StructUnpack)]
+pub struct FunctionNameList {
+    #[pvec(u32)]
+    pub items: Vec<FunctionNameItem>,
+}
+
+#[derive(Clone, Debug)]
+#[allow(dead_code)]
+pub enum ECSObject {
+    Integer(i64),
+    Real(f64),
+    String(String),
+    Array(Vec<ECSObject>),
+    ClassInfoObject(String),
+    Hash,
+    Reference,
+    Global(ECSGlobal),
+}
+
+impl ECSObject {
+    pub fn read_from<R: Read + Seek>(reader: &mut R, int64: bool) -> Result<Self> {
+        let typ = reader.read_u32()?;
+        let obj_typ = CSVariableType::try_from(typ as u8)
+            .map_err(|typ| anyhow::anyhow!("Invalid CSVariableType: {}", typ))?;
+        match obj_typ {
+            CSVariableType::CsvtObject => {
+                let class_name = WideString::unpack(reader, false, Encoding::Utf8)?.0;
+                return Ok(ECSObject::ClassInfoObject(class_name));
+            }
+            CSVariableType::CsvtReference => {
+                return Ok(ECSObject::Reference);
+            }
+            CSVariableType::CsvtArray => {
+                let count = reader.read_u32()? as usize;
+                let mut items = Vec::with_capacity(count);
+                for _ in 0..count {
+                    let item = ECSObject::read_from(reader, int64)?;
+                    items.push(item);
+                }
+                return Ok(ECSObject::Array(items));
+            }
+            CSVariableType::CsvtHash => {
+                return Ok(ECSObject::Hash);
+            }
+            CSVariableType::CsvtInteger => {
+                if int64 {
+                    let val = reader.read_i64()?;
+                    return Ok(ECSObject::Integer(val));
+                } else {
+                    let val = reader.read_i32()? as i64;
+                    return Ok(ECSObject::Integer(val));
+                }
+            }
+            CSVariableType::CsvtReal => {
+                let val = reader.read_f64()?;
+                return Ok(ECSObject::Real(val));
+            }
+            CSVariableType::CsvtString => {
+                let s = WideString::unpack(reader, false, Encoding::Utf8)?.0;
+                return Ok(ECSObject::String(s));
+            }
+            _ => {
+                return Err(anyhow::anyhow!("Unsupported CSVariableType: {:?}", obj_typ));
+            }
+        }
+    }
+}
+
+#[derive(Clone, Debug)]
+#[allow(dead_code)]
+pub struct ECSObjectItem {
+    pub name: String,
+    pub obj: ECSObject,
+}
+
+#[derive(Clone, Debug)]
+pub struct ECSGlobal(pub Vec<ECSObjectItem>);
+
+impl Deref for ECSGlobal {
+    type Target = Vec<ECSObjectItem>;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+impl DerefMut for ECSGlobal {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.0
+    }
+}
+
+#[derive(Clone, Debug, StructPack, StructUnpack)]
+pub struct TaggedRefAddress {
+    pub tag: WideString,
+    pub refs: DWordArray,
+}
+
+#[derive(Clone, Debug, Default, StructPack, StructUnpack)]
+pub struct TaggedRefAddressList {
+    #[pvec(u32)]
+    pub items: Vec<TaggedRefAddress>,
+}
+
+impl Deref for TaggedRefAddressList {
+    type Target = Vec<TaggedRefAddress>;
+
+    fn deref(&self) -> &Self::Target {
+        &self.items
+    }
+}
+
+impl DerefMut for TaggedRefAddressList {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.items
+    }
+}
+
+#[derive(Clone, Debug)]
+#[allow(dead_code)]
+pub struct ECSExecutionImageCommandRecord {
+    pub code: CSInstructionCode,
+    pub addr: u32,
+    pub size: u32,
+    pub new_addr: u32,
+}
+
+#[derive(Clone, Debug)]
+pub struct ECSExecutionImageAssembly {
+    pub command_list: Vec<ECSExecutionImageCommandRecord>,
+}
+
+impl Deref for ECSExecutionImageAssembly {
+    type Target = Vec<ECSExecutionImageCommandRecord>;
+
+    fn deref(&self) -> &Self::Target {
+        &self.command_list
+    }
+}
+
+impl DerefMut for ECSExecutionImageAssembly {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.command_list
+    }
+}
+
+#[test]
+fn test_exi_header_unpack() {
+    let data = b"\x01\x00\x00\x00";
+    let mut cursor = MemReaderRef::new(data);
+    let header = EXIHeader::unpack(&mut cursor, false, Encoding::Utf8).unwrap();
+    assert_eq!(header.version, 1);
+    assert_eq!(header.int_base, 0);
+}
diff --git a/src/scripts/entis_gls/mod.rs b/src/scripts/entis_gls/mod.rs
index 9d7212f..fc8d93a 100644
--- a/src/scripts/entis_gls/mod.rs
+++ b/src/scripts/entis_gls/mod.rs
@@ -1,2 +1,3 @@
 //! Entis GLS engine Script
+pub mod csx;
 pub mod srcxml;
diff --git a/src/scripts/mod.rs b/src/scripts/mod.rs
index 48bd477..72dd0e1 100644
--- a/src/scripts/mod.rs
+++ b/src/scripts/mod.rs
@@ -162,6 +162,8 @@ lazy_static::lazy_static! {
         Box::new(musica::sc::MusicaBuilder::new()),
         #[cfg(feature = "musica-arc")]
         Box::new(musica::archive::paz::PazArcBuilder::new()),
+        #[cfg(feature = "entis-gls")]
+        Box::new(entis_gls::csx::v1::CSXScriptBuilder::new()),
     ];
     /// A list of all script extensions.
     pub static ref ALL_EXTS: Vec<String> =
diff --git a/src/types.rs b/src/types.rs
index 12bf6c4..284d658 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -17,6 +17,8 @@ pub enum Encoding {
     Gb2312,
     /// UTF-16 Little Endian encoding
     Utf16LE,
+    /// UTF-16 Big Endian encoding
+    Utf16BE,
     /// Code page encoding (Windows only)
     #[cfg(windows)]
     CodePage(u32),
@@ -67,6 +69,7 @@ impl Encoding {
             Self::Cp932 => Some("shift_jis"),
             Self::Gb2312 => Some("gbk"),
             Self::Utf16LE => Some("utf-16le"),
+            Self::Utf16BE => Some("utf-16be"),
             #[cfg(windows)]
             Self::CodePage(code_page) => match *code_page {
                 932 => Some("shift_jis"),
@@ -670,6 +673,9 @@ pub enum ScriptType {
     #[cfg(feature = "entis-gls")]
     /// Entis GLS srcxml Script
     EntisGls,
+    #[cfg(feature = "entis-gls")]
+    /// Entis GLS csx script (version 1)
+    EntisGlsCsx1,
     #[cfg(feature = "escude-arc")]
     /// Escude bin archive
     EscudeArc,
diff --git a/src/utils/encoding.rs b/src/utils/encoding.rs
index 5c069ce..404f6ee 100644
--- a/src/utils/encoding.rs
+++ b/src/utils/encoding.rs
@@ -154,6 +154,16 @@ pub fn decode_to_string(
                 },
             )
             .map_err(|_| anyhow::anyhow!("Failed to decode UTF-16LE"))?),
+        Encoding::Utf16BE => Ok(encoding::codec::utf_16::UTF_16BE_ENCODING
+            .decode(
+                data,
+                if check {
+                    DecoderTrap::Strict
+                } else {
+                    DecoderTrap::Replace
+                },
+            )
+            .map_err(|_| anyhow::anyhow!("Failed to decode UTF-16BE"))?),
         #[cfg(windows)]
         Encoding::CodePage(code_page) => Ok(super::encoding_win::decode_to_string(
             code_page, data, check,
@@ -260,6 +270,10 @@ pub fn encode_string(
             let re = utf16string::WString::<utf16string::LE>::from(data);
             Ok(re.as_bytes().to_vec())
         }
+        Encoding::Utf16BE => {
+            let re = utf16string::WString::<utf16string::BE>::from(data);
+            Ok(re.as_bytes().to_vec())
+        }
         #[cfg(windows)]
         Encoding::CodePage(code_page) => {
             Ok(super::encoding_win::encode_string(code_page, data, check)?)