[Roccc-discussion] Fwd: ROCCC help

[Jason Villarreal]

Begin forwarded message:

> From: Jason Villarreal <villarre at cs.ucr.edu>
> Date: February 23, 2010 11:07:29 AM PST
> To: Davide Barcelli <barcelli at dii.unisi.it>
> Subject: Re: [Roccc-discussion] ROCCC help
> 
> 
> On Feb 23, 2010, at 10:51 AM, Davide Barcelli wrote:
> 
>> Hi,
>> 	I am a newbie in roccc therefore I apologize in advance for any trivial question I may ask.
>> I am working on a code for realize a 8 bit Discrete Cosine Tranform, thus I wrote the four modules of the butterfly and the system that calls them. I can compile with no errors all the four modules, however when compiling the system I get the follwoing error:
>> "
> 
> When compiling a system that uses a module, the function call must match the order of the struct elements in the compiled code, not the original C code.  This ordering can be seen in the roccc-library.h file.  In the next patch we are planning on releasing, this ordering will be accessible by double clicking the component in the IPCores view from the GUI.
> 
> This ordering is most likely different than how you originally created the struct.  For example, when compiling DCT1 the struct is originally declared as
> 
>> typedef struct
>> {
>> 	//inputs
>> 	float i0_in ;
>> 	float i1_in ;
>> 	float i2_in ;
>> 	float i3_in ;
>> 	float i4_in ;
>> 	float i5_in ;
>> 	float i6_in ;
>> 	float i7_in ;
>> 	//outputs
>> 	float o0_out ;
>> 	float o1_out ;
>> 	float o2_out ;
>> 	float o3_out ;
>> 	float o4_out ;
>> 	float o5_out ;
>> 	float o6_out ;
>> 	float o7_out ;
>> } DCT1_t ;
> 
> But is compiled into the equivalent struct:
> 
> typedef struct
> {
> float i0_in ;
> float i7_in ;
> float o0_out ;
> float i1_in ;
> float i6_in ;
> float o1_out ;
> float i2_in ;
> float i5_in ;
> float o2_out ;
> float i3_in ;
> float i4_in ;
> float o3_out ;
> float o4_out ;
> float o5_out ;
> float o6_out ;
> float o7_out ;
> } DCT1_t ;
> 
> meaning you will have to call the DCT1 hardware function as: DCT1(i0, i7, o0, i1, i6, o1, i2, i5, o2, i3 i4, o3_out, o4_out, o5, o6, o7) ;
> 
> Thanks,
> Jason
> 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://fenris.cs.ucr.edu/pipermail/roccc-discussion/attachments/20100223/e424eaac/attachment.html