REXX vs. Regina REXX files comparison

This is a quick comparison of function names between undefined REXX and Regina on OS/2.

REXXAPI.DLL has:
 * "15  RexxCallExit" not available on REGINA.DLL
 * "16  RexxCallSubcom" not available on REGINA.DLL
 * "21 	RexxCallFunction" not available on REGINA.DLL
 * "29 	RexxExecuteMacroFunction" not available on REGINA.DLL
 * "30 	RXMACROLOAD" not available on REGINA.DLL
 * "31 	RXMACROSAVE" not available on REGINA.DLL
 * "32 	RXSUBCOMLOAD" not available on REGINA.DLL
 * "33 	RXMACRODROP" not available on REGINA.DLL
 * "34 	RXEXITQUERY" not available on REGINA.DLL
 * "35 	RXMACROERASE" not available on REGINA.DLL
 * "36 	RXSUBCOMDROP" not available on REGINA.DLL
 * "37 	RXMACROQUERY" not available on REGINA.DLL
 * "38 	RXMACROCHANGE" not available on REGINA.DLL
 * "39 	RXSUBCOMQUERY" not available on REGINA.DLL
 * "40 	RXFUNCTIONCALL" not available on REGINA.DLL
 * "41 	RXEXITREGISTER" not available on REGINA.DLL
 * "42 	RXMACROREORDER" not available on REGINA.DLL
 * "43 	RXSUBCOMEXECUTE" not available on REGINA.DLL
 * "44 	RXSUBCOMREGISTER" not available on REGINA.DLL
 * "45 	RXFUNCTIONQUERY" not available on REGINA.DLL
 * "46 	RXFUNCTIONREGISTER" not available on REGINA.DLL
 * "47 	RXEXITDROP" not available on REGINA.DLL
 * "48 	RXFUNCTIONDEREGISTER" not available on REGINA.DLL

REXX.DLL has:
 * "6 	RXTRACERESET" not available on REGINA.DLL
 * "7 	RXBREAKCLEANUP" not available on REGINA.DLL
 * "8 	RXVAR" not available on REGINA.DLL
 * "9 	REXXSAA" not available on REGINA.DLL
 * "10 	RXHALTSET" not available on REGINA.DLL
 * "11 	RXTRACESET" not available on REGINA.DLL