sdcc-sdastlcs90: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/sdcc-sdastlcs90 - from package: sdcc

You may install the required package with command yum install {package}

Error in other languages:
sdcc-sdastlcs90: bevel nie gevind nie
sdcc-sdastlcs90: comandă negăsită
sdcc-sdastlcs90: comando não encontrado
sdcc-sdastlcs90: commande introuvable
sdcc-sdastlcs90: command not found
sdcc-sdastlcs90: käsku ei ole
sdcc-sdastlcs90: không tìm thấy lệnh
sdcc-sdastlcs90: komanda nerasta
sdcc-sdastlcs90: Kommando nicht gefunden.
sdcc-sdastlcs90: kommandot finns inte
sdcc-sdastlcs90: komut yok
sdcc-sdastlcs90: nie znaleziono polecenia
sdcc-sdastlcs90: níor aimsíodh an t-ordú
sdcc-sdastlcs90: no se encontró la orden
sdcc-sdastlcs90: no s'ha trobat l'ordre
sdcc-sdastlcs90: opdracht niet gevonden
sdcc-sdastlcs90: parancs nem található
sdcc-sdastlcs90: perintah tidak ditemukan
sdcc-sdastlcs90: príkaz nenájdený
sdcc-sdastlcs90: příkaz nenalezen
sdcc-sdastlcs90: команда не найдена
sdcc-sdastlcs90: командата не е открита
sdcc-sdastlcs90: 命令找不到
sdcc-sdastlcs90: コマンドが見つかりません