sdasstm8: command not found

Have You tried accessing the binary with the full path?

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/sdasstm8 - from package: sdcc

You may install the required package with command apt-get install {package}
Error in other languages:
sdasstm8: bevel nie gevind nie
sdasstm8: comandă negăsită
sdasstm8: comando não encontrado
sdasstm8: commande introuvable
sdasstm8: command not found
sdasstm8: käsku ei ole
sdasstm8: không tìm thấy lệnh
sdasstm8: komanda nerasta
sdasstm8: Kommando nicht gefunden.
sdasstm8: kommandot finns inte
sdasstm8: komut yok
sdasstm8: nie znaleziono polecenia
sdasstm8: níor aimsíodh an t-ordú
sdasstm8: no se encontró la orden
sdasstm8: no s'ha trobat l'ordre
sdasstm8: opdracht niet gevonden
sdasstm8: parancs nem található
sdasstm8: perintah tidak ditemukan
sdasstm8: príkaz nenájdený
sdasstm8: příkaz nenalezen
sdasstm8: команда не найдена
sdasstm8: командата не е открита
sdasstm8: 命令找不到
sdasstm8: コマンドが見つかりません