GhidraESP8266_2/ESP8266.bt

//------------------------------------------------
//--- 010 Editor v9.0.1 Binary Template
//
//      File: 
//   Authors: 
//   Version: 
//   Purpose: 
//  Category: 
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//   History: 
//------------------------------------------------
string CheckMagic(int magic)
{
    if(0xe9 == magic)
        return "Valid Magic";
    else
        return "Not a valid image";
}
struct header
{
    BYTE magic<comment=CheckMagic>;
    BYTE sections;
    BYTE flash_mode;
    BYTE flash_size_free<format=decimal>;
    int entrypoint<format=hex>;
};
struct section
{
    DWORD offset<format=hex>;
    DWORD size;
    BYTE  data[size];
};
header Header;
FSeek(0x1000);
header UserHeader;
local int i<hidden=true>;
for(i=0; i < UserHeader.sections; i++)
{
    section Section;
    Printf("Section: %x %u", Section.offset, Section.size);
}