...

constants/dss_equ.inc

@@ -301,7 +301,7 @@ sys:
 .WRITE_ERROR            EQU #1A    ; 26 - ®è¨¡ª  § ¯¨á¨
 ;.GENERAL_FAILURE       EQU #1B    ; 27 - ®¡é ï ®è¨¡ª 
 .DRIVE_FAILURE          EQU #1B    ; 27 - á¡®© ¤¨áª 
-.MEDIA_CHANGED          EQU #1C    ; 28 - § à¥§¥à¢¨à®¢ ­
+.MEDIA_CHANGED          EQU #1C    ; 28 - ᬥ­  ­®á¨â¥«ï
 ;.RESERVED_29           EQU #1D    ; 29 - § à¥§¥à¢¨à®¢ ­
 .NOT_ENOUGH_MEMORY      EQU #1E    ; 30 - ­¥¤®áâ â®ç­® ¯ ¬ïâ¨
 .INVALID_MEMORY_HND     EQU #1F    ; 31 - ­¥áãé¥áâ¢ãî騩 ¡«®ª ¯ ¬ïâ¨

macroses/macros.z80

@@ -174,12 +174,13 @@
 	EX	DE,HL
 	SBC	HL,DE
 	JR	C,.Error_DOS
+	JR	NZ,.bios
 	;
 	LD	HL,-(MIN_DSS_BUILD)
 	ADD	HL,BC
 	JR	NC,.Error_DOS
 	;
-	LD	C,BIOS.DRV_VERSION
+.bios:	LD	C,BIOS.DRV_VERSION
 	RST	ToBIOS
 	JR	C,.Error_BIOS
 	LD	HL,-(MIN_BIOS_VERSION)