Option -zf: Select FASTCALL Type From Asmc Macro Assembler previous page next page Option -zf: Select FASTCALL Type Option -zf selects the FASTCALL calling convention type for 16- and 32-bit code. Syntax is: -zf[0|1] The default value 0 is MS VC style, while value 1 activates the Open Watcom fastcall type. previous page start next page