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how to call a extern function within embedded ASM ?

Note: This was originally posted on 4th June 2009 at http://forums.arm.com

is it possibe to get the embedded assembly to call my function1()?
How do I write this ?

Thanks!

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Simon Craske over 12 years ago

Note: This was originally posted on 4th June 2009 at http://forums.arm.com

From memory, I thought the "proper" way was actually:
__asm void foo(void) { PUSH{r4,lr}; BL __cpp(some_func); POP {r4,pc}; }
or
__asm void foo(void) { LDR r0,=__cpp(some_func); BX r0; }
i.e. using the __cpp() operator.

hth
s.
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Simon Craske over 12 years ago

Note: This was originally posted on 4th June 2009 at http://forums.arm.com

From memory, I thought the "proper" way was actually:
__asm void foo(void) { PUSH{r4,lr}; BL __cpp(some_func); POP {r4,pc}; }
or
__asm void foo(void) { LDR r0,=__cpp(some_func); BX r0; }
i.e. using the __cpp() operator.

hth
s.
Cancel
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