Expand description
Original PTX specification:
// direct call to named function, func is a symbol call{.uni} (ret-param), func, (param-list); call{.uni} func, (param-list); call{.uni} func; // indirect call via pointer, with full list of call targets call{.uni} (ret-param), fptr, (param-list), flist; call{.uni} fptr, (param-list), flist; call{.uni} fptr, flist; // indirect call via pointer, with no knowledge of call targets call{.uni} (ret-param), fptr, (param-list), fproto; call{.uni} fptr, (param-list), fproto; call{.uni} fptr, fproto;