mov  edi,params	    ; 㪠§ â¥«ì ­  áâபã
    call str_len	    ; ¯®«ãç ¥¬ ¤«¨­ã áâப¨
    cmp  eax,0		    ; áâà ¢­¨¢ ¥¬ ¤«¨­ã á ­ã«ñ¬
    je	 red		    ; ¥á«¨ ¯ à ¬¥â஢ ­¥â â® ã室¨¬
    call    _read_params    ; ¨­ ç¥ ç¨â ¥¬ ¯ à ¬¥âàë æ¢¥â  (®ç¥­ì ªà¨¢®)
    xor  eax,eax	    ; § ­ã«ï¥¬ ॣ¨áâà
    mov  al,byte [params]   ; ç¨â ¥¬ ¯ à ¬¥âà ¬®¤ 
    cmp  al,'N' 	    ; áà ¢­¨¢ ¥¬ á normal mode
    jne _no_normalmode	    ; ¥á«¨ ­¥â â® ã室¨¬ ­  ¯à®¢¥àªã ¤ «ìè¥
    mov  [runmode],1	    ; ¥á«¨ ¤  â® ãáâ ­ ¢«¨¢ ¥¬ ¥£®
    jmp  red		    ; ¨¤ñ¬ ­  ®âà¨á®¢ªã
  _no_normalmode:	    ; ¥á«¨ ­¥ normal mode â®
    cmp  al,'H' 	    ; ¢®§¬®¦­® hidden mode
    jne _no_hiddenmode	    ; ¥á«¨ ­¥ ®­ â® ã室¨¬ ¤ «ìè¥
    mov  [runmode],2	    ; ¥á«¨ ®­ â® ãáâ ­ ¢«¨¢ ¥¬ çâ® íâ® ®­ (­ å?)
    call set_background     ; ¬¥­ï¥¬ ä®­
    jmp  bexit		    ; ¨ § ªà뢠¥¬ ¯à®£ã
  _no_hiddenmode:	    ; ¥á«¨ ­¥ hidden mode
    cmp  al,'B' 	    ; ¢®§¬®¦­® noise mode
    jne _no_noisemode	    ; ¥á«¨ ­¥ ®­ â® ã室¨¬ ¤ «ìè¥
    mov  [runmode],2	    ; ¥á«¨ ®­ â® ãáâ ­ ¢«¨¢ ¥¬ çâ® íâ® ®­ (­ å?)
    call set_background2    ; ¬¥­ï¥¬ ä®­
    jmp  bexit		    ; ¨ § ªà뢠¥¬ ¯à®£ã
  _no_noisemode:	    ; ¥á«¨ ­¥ noise mode
    cmp  al,'D' 	    ; ¢®§¬®¦­® íâ® color dialog mode
    jne _no_dialogmode	    ; ¥á«¨ ¢áñ â ª¨ ­¥ ®­ â® ã室¨¬
    mov  [runmode],3	    ; ¨­ ç¥ 㪠§ë¢ ¥¬ çâ® íâ® â ª¨ ®­
    jmp  red		    ; ¨ ã室¨¬ ­  ¢ë¯®«­¥­¨¥
  _no_dialogmode:	    ; ¥á«¨ íâ® ­¨ ®¤¨­ ¨§ § ï¢«¥­ëå ¬®¤®¢
    mov  [runmode],1	    ; â® á¡à á뢠¥¬ ­  ¤¥ä®«â
    jmp  red		    ; ¨ à¨á㥬