Changeset 199 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Initialization/DetectDrives.asm

Timestamp:

Nov 21, 2011, 11:01:08 AM (13 years ago)

Author:

gregli@…

google:author:

gregli@hotmail.com

Message:

Adding proper serial port support to the Configurator, which required some minor changes elsewhere. Also added an option, off by default, to automatically scan for serial drives at the end of normal drive detection (no ALT key required, although that is still available if the option is off).

File:

• trunk/XTIDE_Universal_BIOS/Src/Initialization/DetectDrives.asm (modified) (1 diff)

trunk/XTIDE_Universal_BIOS/Src/Initialization/DetectDrives.asm

@@ -31 +31 @@
     add     bp, BYTE IDEVARS_size           ; Point to next IDEVARS
     loop    .DriveDetectLoop
-
 %ifdef MODULE_SERIAL
-    test    BYTE [es:BDA.bKBFlgs1], 8       ; alt key depressed
-    jz      .done
+    mov     al,[cs:ROMVARS.wFlags]
+    or      al,[es:BDA.bKBFlgs1]
+    and     al,8        ; 8 = alt key depressed, same as FLG_ROMVARS_SERIAL_ALWAYSDETECT
+    jz      .done
     mov     bp, ROMVARS.ideVarsSerialAuto
     mov     si, g_szDetectCOMAuto
-;;; fall-through        
+;;; fall-through                    
 %else
     ret
+%endif
+
+%if FLG_ROMVARS_SERIAL_SCANDETECT != 8
+%error "DetectDrives is currently coded to assume that FLG_ROMVARS_SERIAL_ALWAYSDETECT is the same bit as the ALT key code in the BDA.  Changes in the code will be needed if these values are no longer the same."
 %endif