Changeset 258 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Initialization/Initialize.asm

Timestamp:

Feb 22, 2012, 7:01:53 PM (12 years ago)

Author:

gregli@…

google:author:

gregli@hotmail.com

Message:

Added floppy drive emulation over the serial connection (MODULE_SERIAL_FLOPPY). Along the way, various optimizations were made to stay within the 8K ROM size target. Also, serial code now returns the number of sectors transferred.

File:

• trunk/XTIDE_Universal_BIOS/Src/Initialization/Initialize.asm (modified) (3 diffs)

trunk/XTIDE_Universal_BIOS/Src/Initialization/Initialize.asm

@@ -29 +29 @@
 
     ; Install INT 19h handler (boot loader) where drives are detected
-    mov     bx, BIOS_BOOT_LOADER_INTERRUPT_19h
+    mov     al, BIOS_BOOT_LOADER_INTERRUPT_19h
     mov     si, Int19h_BootLoaderHandler
-    call    Interrupts_InstallHandlerToVectorInBXFromCSSI
+    call    Interrupts_InstallHandlerToVectorInALFromCSSI
 
 .SkipRomInitialization:
@@ -73 +73 @@
     mov     dl, 80h
     call    RamVars_IsDriveHandledByThisBIOS
-    jnc     SHORT .FindForDrive81h  ; Store nothing if not our drive
+    jc      SHORT .FindForDrive81h  ; Store nothing if not our drive
     call    FindDPT_ForDriveNumber  ; DPT to DS:DI
     mov     [es:HD0_DPT_POINTER_41h*4], di
@@ -80 +80 @@
     inc     dx
     call    RamVars_IsDriveHandledByThisBIOS
-    jnc     SHORT .ResetDetectedDrives
+    jc      SHORT .ResetDetectedDrives
     call    FindDPT_ForDriveNumber
     mov     [es:HD1_DPT_POINTER_46h*4], di