macro(HEXCHAR2DEC VAR VAL)
    if(${VAL} MATCHES "[0-9]")
        set(${VAR} ${VAL})
    elseif(${VAL} MATCHES "[aA]")
        set(${VAR} 10)
    elseif(${VAL} MATCHES "[bB]")
        set(${VAR} 11)
    elseif(${VAL} MATCHES "[cC]")
        set(${VAR} 12)
    elseif(${VAL} MATCHES "[dD]")
        set(${VAR} 13)
    elseif(${VAL} MATCHES "[eE]")
        set(${VAR} 14)
    elseif(${VAL} MATCHES "[fF]")
        set(${VAR} 15)
    else()
        message(FATAL_ERROR "Invalid format for hexidecimal character")
    endif()
endmacro()

macro(HEX2DEC VAR VAL)
    set(CURINDEX 0)
    string(LENGTH "${VAL}" CURLENGTH)
    set(${VAR} 0)
    while(CURINDEX LESS CURLENGTH)
        string(SUBSTRING "${VAL}" ${CURINDEX} 1 CHAR)
        HEXCHAR2DEC(CHAR ${CHAR})
        math(EXPR POWAH "(1 << ((${CURLENGTH} - ${CURINDEX} - 1) * 4))")
        math(EXPR CHAR "(${CHAR} * ${POWAH})")
        math(EXPR ${VAR} "${${VAR}} + ${CHAR}")
        math(EXPR CURINDEX "${CURINDEX} + 1")
    endwhile()
endmacro()

macro(SET_VERSION MAJOR MINOR FILE)
    set(ROLLBACK 4)
    file(READ ${FILE} ver)
    string(REGEX MATCHALL "0x([0-9A-F])([0-9A-F])([0-9A-F])([0-9A-F])" _ ${ver})
    string(CONCAT ver_major ${CMAKE_MATCH_1}${CMAKE_MATCH_2})
    string(CONCAT ver_minor ${CMAKE_MATCH_3}${CMAKE_MATCH_4})
    HEX2DEC(ver_major ${ver_major})
    HEX2DEC(ver_minor ${ver_minor})
    message(STATUS "Found version:\t\t ${ver_major}.${ver_minor}")
    if(PICO_PLATFORM)
        if(PICO_RP2350 AND SECURE_BOOT_PKEY)
            message(STATUS "Setting rollback version:\t ${ROLLBACK}")
            pico_set_binary_version(
                ${CMAKE_PROJECT_NAME}
                MAJOR ${ver_major}
                MINOR ${ver_minor}
                ROLLBACK ${ROLLBACK}
            )
        else()
            pico_set_binary_version(
                ${CMAKE_PROJECT_NAME}
                MAJOR ${ver_major}
                MINOR ${ver_minor}
            )
        endif()
    endif()
    set(${MAJOR} ${ver_major})
    set(${MINOR} ${ver_minor})
endmacro()