diff --git a/extract.ps1 b/extract.ps1
new file mode 100644
index 0000000..f80fab7
--- /dev/null
+++ b/extract.ps1
@@ -0,0 +1,43 @@
+Param([Parameter(Mandatory=$true)][String]$CodeName)
+Set-Location -Path (Split-Path -Parent $MyInvocation.MyCommand.Definition)
+$Configs="definitions"
+$DefConfig="sdm845-generic"
+$Config=Join-Path `
+    -Path $Configs `
+    -ChildPath (-Join ($CodeName,".txt"))
+Write-Output $Config
+If( -Not (Test-Path -Path $Config)){
+    Write-Output "warning: your model has no definition file, use default"
+    $Config=Join-Path `
+        -Path $Configs `
+        -ChildPath (-Join ($DefConfig,".txt"))
+    if( -Not (Test-Path -Path $Config)){
+        Write-Output "default definition file not found"
+        exit 1
+    }
+}
+If(Test-Path -Path output){
+    Remove-Item `
+        -Recurse `
+        -Force `
+        -Path output
+}
+$Output=New-Item `
+    -ItemType Directory `
+    -Path output
+Get-Content `
+    -Path $Config | `
+    Copy-Item `
+        -Recurse `
+        -Verbose `
+        -Path { "."+$_ } `
+        -Destination $Output
+Get-ChildItem `
+    -Recurse `
+    -Path $Output `
+    -Filter *.inf_ | `
+Rename-Item `
+    -NewName { `
+        $_.FullName `
+            -Replace '\.inf_','.inf' `
+    }