Changeset 152 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Initialization

Timestamp:

May 1, 2011, 10:42:58 AM (14 years ago)

Author:

Tomi Tilli

google:author:

aitotat

Message:

Changes to XTIDE Universal BIOS:

• XTIDE mod should now be supported (untested).
• Interrupt Service Routine no longer requires variable from RAMVARS.
• Some small improvements.

Location:

trunk/XTIDE_Universal_BIOS/Src/Initialization

Files:

• FloppyDrive.asm (modified) (5 diffs)
• Initialize.asm (modified) (1 diff)
• Interrupts.asm (modified) (7 diffs)

trunk/XTIDE_Universal_BIOS/Src/Initialization/FloppyDrive.asm

@@ -19 +19 @@
 ;--------------------------------------------------------------------
 FloppyDrive_IsInt40hInstalled:
-    cmp     WORD [es:INTV_FLOPPY_FUNC*4+2], 0C000h  ; Any ROM segment?
+    cmp     WORD [es:BIOS_DISKETTE_INTERRUPT_40h*4+2], 0C000h   ; Any ROM segment?
 %ifdef USE_AT   ; No need to verify on XT systems.
     jb      SHORT .Int40hHandlerIsNotInstalled
@@ -45 +45 @@
 
     call    .LoadInt40hVerifyParameters
-    int     INTV_DISK_FUNC
+    int     BIOS_DISK_INTERRUPT_13h
     jc      SHORT .Int40hIsInstalled    ; Maybe there are not any floppy drives at all
     push    es
@@ -51 +51 @@
 
     call    .LoadInt40hVerifyParameters
-    int     INTV_FLOPPY_FUNC
+    int     BIOS_DISKETTE_INTERRUPT_40h
 
     pop     dx
@@ -113 +113 @@
     mov     ah, 08h         ; Get Drive Parameters
     xor     bx, bx          ; FLOPPY_TYPE_525_OR_35_DD when function not supported
-    int     INTV_FLOPPY_FUNC
+    int     BIOS_DISKETTE_INTERRUPT_40h
     ret
 
@@ -167 +167 @@
     mov     ah, 08h                 ; Get Drive Parameters
     cwd                             ; Floppy Drive 00h
-    int     INTV_FLOPPY_FUNC
+    int     BIOS_DISKETTE_INTERRUPT_40h
     mov     cl, dl                  ; Number of Floppy Drives to CL
 

trunk/XTIDE_Universal_BIOS/Src/Initialization/Initialize.asm

@@ -89 +89 @@
 .StoreDptPointersToIntVectors:
     mov     dl, 80h
+    call    RamVars_IsDriveHandledByThisBIOS
+    jnc     SHORT .FindForDrive81h  ; Store nothing if not our drive
     call    FindDPT_ForDriveNumber  ; DPT to DS:DI
-    jnc     SHORT .FindForDrive81h  ; Store nothing if not our drive
-    mov     [es:INTV_HD0DPT*4], di
-    mov     [es:INTV_HD0DPT*4+2], ds
+    mov     [es:HD0_DPT_POINTER_41h*4], di
+    mov     [es:HD0_DPT_POINTER_41h*4+2], ds
 .FindForDrive81h:
     inc     dx
+    call    RamVars_IsDriveHandledByThisBIOS
+    jnc     SHORT .ResetDetectedDrives
     call    FindDPT_ForDriveNumber
-    jnc     SHORT .ResetDetectedDrives
-    mov     [es:INTV_HD1DPT*4], di
-    mov     [es:INTV_HD1DPT*4+2], ds
+    mov     [es:HD1_DPT_POINTER_46h*4], di
+    mov     [es:HD1_DPT_POINTER_46h*4+2], ds
     ; Fall to .ResetDetectedDrives
 

trunk/XTIDE_Universal_BIOS/Src/Initialization/Interrupts.asm

@@ -29 +29 @@
 ;--------------------------------------------------------------------
 .InitializeInt13hAnd40h:
-    mov     ax, [es:INTV_DISK_FUNC*4]           ; Load old INT 13h offset
-    mov     dx, [es:INTV_DISK_FUNC*4+2]         ; Load old INT 13h segment
+    mov     ax, [es:BIOS_DISK_INTERRUPT_13h*4]  ; Load old INT 13h offset
+    mov     dx, [es:BIOS_DISK_INTERRUPT_13h*4+2]; Load old INT 13h segment
     mov     [RAMVARS.fpOldI13h], ax             ; Store old INT 13h offset
     mov     [RAMVARS.fpOldI13h+2], dx           ; Store old INT 13h segment
-    mov     bx, INTV_DISK_FUNC                  ; INT 13h interrupt vector offset
+    mov     bx, BIOS_DISK_INTERRUPT_13h         ; INT 13h interrupt vector offset
     mov     si, Int13h_DiskFunctionsHandler     ; Interrupt handler offset
     call    Interrupts_InstallHandlerToVectorInBXFromCSSI
@@ -42 +42 @@
     call    FloppyDrive_IsInt40hInstalled
     jc      SHORT .InitializeInt19h
-    mov     [es:INTV_FLOPPY_FUNC*4], ax     ; Store old INT 13h offset
-    mov     [es:INTV_FLOPPY_FUNC*4+2], dx   ; Store old INT 13h segment
+    mov     [es:BIOS_DISKETTE_INTERRUPT_40h*4], ax      ; Store old INT 13h offset
+    mov     [es:BIOS_DISKETTE_INTERRUPT_40h*4+2], dx    ; Store old INT 13h segment
     ; Fall to .InitializeInt19h
 
@@ -57 +57 @@
 ;--------------------------------------------------------------------
 .InitializeInt19h:
-    mov     bx, INTV_BOOTSTRAP
+    mov     bx, BIOS_BOOT_LOADER_INTERRUPT_19h
     mov     si, Int19hMenu_BootLoader
     call    Interrupts_InstallHandlerToVectorInBXFromCSSI
@@ -110 +110 @@
 ;--------------------------------------------------------------------
 .InstallHighIrqHandler:
-    add     bx, BYTE INTV_IRQ8 - 8          ; Interrupt vector number
+    add     bx, BYTE HARDWARE_IRQ_8_INTERRUPT_70h - 8   ; Interrupt vector number
     mov     si, IdeIrq_InterruptServiceRoutineForIrqs8to15
     jmp     SHORT Interrupts_InstallHandlerToVectorInBXFromCSSI
@@ -125 +125 @@
 ;--------------------------------------------------------------------
 .InstallLowIrqHandler:
-    add     bx, BYTE INTV_IRQ0              ; Interrupt vector number
+    add     bx, BYTE HARDWARE_IRQ_0_INTERRUPT_08h       ; Interrupt vector number
     mov     si, IdeIrq_InterruptServiceRoutineForIrqs2to7
     ; Fall to Interrupts_InstallHandlerToVectorInBXFromCSSI
@@ -177 +177 @@
 .UnmaskHighIrqController:
     sub     al, 8               ; Slave interrupt number
-    mov     dx, PORT_8259SL_IMR ; Load Slave Mask Register address
+    mov     dx, SLAVE_8259_IMR
     call    .ClearBitFrom8259MaskRegister
     mov     al, 2               ; Master IRQ 2 to allow slave IRQs
@@ -192 +192 @@
 ;--------------------------------------------------------------------
 .UnmaskLowIrqController:
-    mov     dx, PORT_8259MA_IMR ; Load Mask Register address
+    mov     dx, MASTER_8259_IMR
     ; Fall to .ClearBitFrom8259MaskRegister