24. PROTO Directive

• The easiest way to create prototypes with PROTO is to

  1. write your procedure

  2. copy the first line

  3. change PROC to PROTO and remove the USES reglist, the prologuearg field, and the visibility field.

• For example,

      ; Procedure prototypes:
      load_data PROTO NEAR32 C, arg1:WORD, arg2:WORD, arg3:WORD 
      save_data PROTO NEAR32 C, arg1:DWORD, arg2:BYTE
      .
      ; Procedure calls:
      INVOKE  load_data,  ax, x,  y
      INVOKE  save_data,  ebx, 10
      .
      ; Procedure declarations:
      load_data PROC NEAR32 C, arg1:WORD, arg2:WORD, arg3:WORD 
      .
      save_data PROC NEAR32 C PUBLIC USES di si, arg1:DWORD, arg2:BYTE
      .