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>> How does someone write an interrupt for an ARM,i.e. what directives do I use within gcc? You don't. Instead you write a very small piece of code in assembly language which calls your C function. It's really quite simple. push the important registers [ use the STM instruction ] bl your_c_function pop the important registers [ use the LDM instruction ] If you use the funny attributes on the LDM instruction, the LDM will effectively do the mode switch for you. Pretty simple. -Duane. ------ Want more information? See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/ Want to unsubscribe? Send a note to crossgcc-unsubscribe@sources.redhat.com
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