Honored Contributor
Honored Contributor1. Use SOPC Builder to add CI with extra FIFO interface to some NIOS II processors
2. Hack generated Verilog to instantiate SCFIFO, connecting it to the "extra" CI ports that are exported to the top level 3. Compile the hacked verilog in Quantus This worked for me. I also found the call formats for builtin custom functions on the web: http://uclibc.org/cgi-bin/viewcvs.cgi/trun...patch?rev=13071 (http://uclibc.org/cgi-bin/viewcvs.cgi/trunk/buildroot/toolchain/gcc/3.4.3/900-nios2.patch?rev=13071) +And the function names are: +@example +void __builtin_custom_n (void) +void __builtin_custom_ni (int) +void __builtin_custom_nf (float) +void __builtin_custom_np (void *) +void __builtin_custom_nii (int, int) +void __builtin_custom_nif (int, float) +void __builtin_custom_nip (int, void *) +void __builtin_custom_nfi (float, int) +void __builtin_custom_nff (float, float) +void __builtin_custom_nfp (float, void *) +void __builtin_custom_npi (void *, int) +void __builtin_custom_npf (void *, float) +void __builtin_custom_npp (void *, void *) +int __builtin_custom_in (void) +int __builtin_custom_ini (int) +int __builtin_custom_inf (float) +int __builtin_custom_inp (void *) +int __builtin_custom_inii (int, int) +int __builtin_custom_inif (int, float) +int __builtin_custom_inip (int, void *) +int __builtin_custom_infi (float, int) +int __builtin_custom_inff (float, float) +int __builtin_custom_infp (float, void *) +int __builtin_custom_inpi (void *, int) +int __builtin_custom_inpf (void *, float) +int __builtin_custom_inpp (void *, void *) +float __builtin_custom_fn (void) +float __builtin_custom_fni (int) +float __builtin_custom_fnf (float) +float __builtin_custom_fnp (void *) +float __builtin_custom_fnii (int, int) +float __builtin_custom_fnif (int, float) +float __builtin_custom_fnip (int, void *) +float __builtin_custom_fnfi (float, int) +float __builtin_custom_fnff (float, float) +float __builtin_custom_fnfp (float, void *) +float __builtin_custom_fnpi (void *, int) +float __builtin_custom_fnpf (void *, float) +float __builtin_custom_fnpp (void *, void *) +void * __builtin_custom_pn (void) +void * __builtin_custom_pni (int) +void * __builtin_custom_pnf (float) +void * __builtin_custom_pnp (void *) +void * __builtin_custom_pnii (int, int) +void * __builtin_custom_pnif (int, float) +void * __builtin_custom_pnip (int, void *) +void * __builtin_custom_pnfi (float, int) +void * __builtin_custom_pnff (float, float) +void * __builtin_custom_pnfp (float, void *) +void * __builtin_custom_pnpi (void *, int) +void * __builtin_custom_pnpf (void *, float) +void * __builtin_custom_pnpp (void *, void *) +@end example + +
