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Merwan
2016-11-07 17:25:23 +01:00
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commit e14e8ea50d
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blinker07/README
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@@ -233,7 +233,7 @@ mode. How do you get into interrupt mode? Well you modify the cpsr
which contains the mode bits and that magically changes you to that mode. which contains the mode bits and that magically changes you to that mode.
You can do this from any mode to any mode except from user mode, you cant You can do this from any mode to any mode except from user mode, you cant
get out of user mode by changing the bits. We are not in user mode on get out of user mode by changing the bits. We are not in user mode on
boot and never swtich to it in any of my examples do we dont have to boot and never switch to it in any of my examples do we dont have to
worry about getting out of it (normally you use an svc/swi instruction and worry about getting out of it (normally you use an svc/swi instruction and
have a software interrupt handler that does things that are protected have a software interrupt handler that does things that are protected
from user mode). So the next bit of code after copying the exception from user mode). So the next bit of code after copying the exception