https://community.intel.com/t5/Intel-Fortran-Compiler/Calling-API-from-ML64/m-p/1714793#M177021 <P>Good day.&nbsp; This is not specifically a Fortran compiler question, however, it's close.&nbsp; Perhaps someone knows the answer to this question.</P><P>In ml64, I can no longer use INVOKE, I must use CALL.&nbsp; Does the CALL instruction still use the stack (i.e. PUSH)?&nbsp; I cannot get this to work.&nbsp; Thanks for any help.</P> Wed, 03 Sep 2025 00:34:18 GMT Ken_Woolridge 2025-09-03T00:34:18Z https://community.intel.com/t5/Intel-Fortran-Compiler/Calling-API-from-ML64/m-p/1714793#M177021 <P>Good day.&nbsp; This is not specifically a Fortran compiler question, however, it's close.&nbsp; Perhaps someone knows the answer to this question.</P><P>In ml64, I can no longer use INVOKE, I must use CALL.&nbsp; Does the CALL instruction still use the stack (i.e. PUSH)?&nbsp; I cannot get this to work.&nbsp; Thanks for any help.</P> Wed, 03 Sep 2025 00:34:18 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/Calling-API-from-ML64/m-p/1714793#M177021 Ken_Woolridge 2025-09-03T00:34:18Z https://community.intel.com/t5/Intel-Fortran-Compiler/Calling-API-from-ML64/m-p/1714972#M177024 <P>First 4 arguments are register, room for this made on stack, remaining args on stack</P><P>Default argument passing by reference.</P><P>Use BIND(C) for calling convention:</P><LI-CODE lang="fortran">SUBROUTINE INTEROP_SUB (ARG) BIND(C,NAME="InteropSub") FUNCTION INTEROP_FUN (ARG) BIND(C,NAME="InteropFun") RESULT (IAMFUN)</LI-CODE><P>Suggest you make an exemplative shell function in Fortran, enable assembly output with source, edit that down to minimal code, then fill-in the body of the function.</P><P>&nbsp;</P><P>Jim Dempsey</P><P>&nbsp;</P> Wed, 03 Sep 2025 19:13:09 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/Calling-API-from-ML64/m-p/1714972#M177024 jimdempseyatthecove 2025-09-03T19:13:09Z