SIL testing with user defined function.

So, I'm trying to do SIL testing for my simulink model. Right now I'm only trying to test one subsystem. This subsystem consists of some user defined code. When I try to perform SIL I get the following errors.

1. error: use of undeclared identifier 'tmp'

tmp = _mm_loadu_pd(&b_A[(int32_T)(kAcol - 1)]);

2. error: call to undeclared function '_mm_loadu_pd'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]

tmp = _mm_loadu_pd(&b_A[(int32_T)(kAcol - 1)]);

Many similar errors of this 'tmp' type. At the end I get this error

• Error(s) encountered while building "rtwshared"

I tried to change the C code to standards available which isnt the ISO 99, like the ANSI standard. However, the error persists.

On another note, if i try to generate code using Embedded Coder on simulink. I am able to generate code.

Is the code being built to perform SIL and this embedded code the same?

Answer 1

[Mark McBroom]

You need to add the function prototype for _mm_loadu_pd to your user defined C file ( or a #include to a header file that defines the function prototype).

Thanks.

Mark.

[Rahul]

I'm not exactly sure what this means. Not very comfortable in C.

Is there some change I could make to my matlab user defined function? or to the configuration parameters?