Visual Studio Code to work with STM8 Cosmic compiler.

.vscode\c_cpp_properties.json

{
    "configurations": [
        {
            "name": "STM8",
            "includePath": [
                "${workspaceFolder}/**",
                "C:/Program Files (x86)/COSMIC/FSE_Compilers/CXSTM8/Hstm8/**"
            ],
            "defines": [
                "_DEBUG",
                "UNICODE",
                "_UNICODE",
                "_COSMIC_",
                "__CSMC__"
            ],
            "intelliSenseMode": "clang-arm",
            "compilerPath": "C:/Program Files (x86)/COSMIC/FSE_Compilers/CXSTM8/cxstm8.exe",
            "compilerArgs": [
                "-v",
                "-l",
                "+strict",
                "+debug",
                "+modsl0",
                "+split",
                "+warn"
            ],
            "cStandard": "c99"
        }
    ],
    "version": 4
}

.vscode\tasks.json

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "type": "cppbuild",
            "label": "C/C++: cxstm8.exe build active file",
            "command": "C:\\Program Files (x86)\\COSMIC\\FSE_Compilers\\CXSTM8\\cxstm8.exe",
            "args": [
                "-v",
                "-l",
                "+strict",
                "+debug",
                "+modsl0",
                "+split",
                "+warn",
                "${file}"
            ],
            "options": {
                "cwd": "C:\\Program Files (x86)\\COSMIC\\FSE_Compilers\\CXSTM8"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": "build",
            "detail": "compiler: \"C:\\Program Files (x86)\\COSMIC\\FSE_Compilers\\CXSTM8\\cxstm8.exe\""
        },
        {
            "type": "shell",
            "label": "C/C++: cxstm8.exe build all",
            "command": "cmd",
            "args": [
                "/c",
                "${workspaceFolder}/.Idea_Temp/IDEABLD.BAT"
            ],
            "options": {
                "cwd": "${workspaceFolder}"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": "build"
        }
    ]
}

Thank you for providing the files.Unfortunatly I wasn't able to get the software to build als also the IDEABLD.BAT file is missing. I'm I correct in my assumption that you are using the IDEA-IDE from Cosmic and the .BAT file was generated there during a build?