
14 Dec
2002
14 Dec
'02
8:49 p.m.
Greetings:
I just build a version of u-boot for the PPC 405GP.
If I disassemble the code that is generated I see the following:
fff80100 <_start>: fff80100: 38 80 00 00 li r4,0 fff80104: 7c 99 eb a6 mtsgr r4 fff80108: 7c 9a eb a6 mtdcwr r4 fff8010c: 7c 94 f3 a6 mtesr r4 fff80110: 7c 9a f3 a6 mttcr r4 fff80114: 7c 81 03 a6 mtxer r4 fff80118: 7c 96 f3 a6 mtevpr r4 fff8011c: 38 80 10 00 li r4,4096
So to develop a deeper understanding of how all the pieces fit together I went to the start.S module under the cpu subdirecory. There I see the _start vector - however the code I see in start.S does not correspond to the code that I disassembled.
What am I missing?
Kindest Regards,
Jerry