sdasz80: 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 Debian possible default full paths are:

/usr/bin/sdasz80 - from package: sdcc

You may install the required package with command apt-get install {package}

Error in other languages:
sdasz80: bevel nie gevind nie
sdasz80: comandă negăsită
sdasz80: comando não encontrado
sdasz80: commande introuvable
sdasz80: command not found
sdasz80: käsku ei ole
sdasz80: không tìm thấy lệnh
sdasz80: komanda nerasta
sdasz80: Kommando nicht gefunden.
sdasz80: kommandot finns inte
sdasz80: komut yok
sdasz80: nie znaleziono polecenia
sdasz80: níor aimsíodh an t-ordú
sdasz80: no se encontró la orden
sdasz80: no s'ha trobat l'ordre
sdasz80: opdracht niet gevonden
sdasz80: parancs nem található
sdasz80: perintah tidak ditemukan
sdasz80: príkaz nenájdený
sdasz80: příkaz nenalezen
sdasz80: команда не найдена
sdasz80: командата не е открита
sdasz80: 命令找不到
sdasz80: コマンドが見つかりません