My application does not need Linux. I wrote my own assember software from scratch. I use a software tool to convert elf file to srec file. I used the following commands to run my program:

load srec
from File Menu: <File> <Send file> filename <Open>
jump 0x8000

The program run very well but the problem is I could not set "1" to any bit of IntEnable and also I cound not set "1" to the I flag of CPSR. The program is running in supervisor mode.

It looks like the interruption is protected by a protection mechanism. If it is then how to disable or overide the protection.

The another problem is:
It is working fine if I use jump 0x8000 to go to the entry point. But it does not work if I use exec 0x8000 command. What's the problem?


Shih