Changeset 501 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdeCommand.asm

Timestamp:

Jan 26, 2013, 4:58:50 PM (11 years ago)

Author:

aitotat@…

google:author:

aitotat@gmail.com

Message:

Changes to XTIDE Universal BIOS:

• XTIDE rev 2 and modded XTIDE rev 1 work again (fixed A0<->A3 swap when accessing Control Block Registers).
• System INT 13h handler is no longer copied to INT 40h (testing if something uses INT 40h).
• Removed controller hardware reset: now AH=0h and AH=Dh will only re-initialize drives (SB16 Tertiary and Quaternary IDE should now be safe to use when using Secondary IDE).

File:

• trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdeCommand.asm (modified) (1 diff)

trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdeCommand.asm

@@ -20 +20 @@
 ; Section containing code
 SECTION .text
-
-;--------------------------------------------------------------------
-; IdeCommand_ResetMasterAndSlaveController
-;   Parameters:
-;       DS:DI:  Ptr to DPT (in RAMVARS segment)
-;   Returns:
-;       AH:     INT 13h Error Code
-;       CF:     Cleared if success, Set if error
-;   Corrupts registers:
-;       AL, BX, CX, DX
-;--------------------------------------------------------------------
-IdeCommand_ResetMasterAndSlaveController:
-    ; HSR0: Set_SRST
-    call    AccessDPT_GetDeviceControlByteToAL
-    or      al, FLG_DEVCONTROL_SRST | FLG_DEVCONTROL_nIEN   ; Set Reset bit
-    OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER     DEVICE_CONTROL_REGISTER_out
-    mov     ax, HSR0_RESET_WAIT_US
-    call    Timer_DelayMicrosecondsFromAX
-
-    ; HSR1: Clear_wait
-    call    AccessDPT_GetDeviceControlByteToAL
-    or      al, FLG_DEVCONTROL_nIEN
-    and     al, ~FLG_DEVCONTROL_SRST                        ; Clear reset bit
-    OUTPUT_AL_TO_IDE_CONTROL_BLOCK_REGISTER     DEVICE_CONTROL_REGISTER_out
-    mov     ax, HSR1_RESET_WAIT_US
-    call    Timer_DelayMicrosecondsFromAX
-
-    ; HSR2: Check_status
-    mov     bx, TIMEOUT_AND_STATUS_TO_WAIT(TIMEOUT_MAXIMUM, FLG_STATUS_BSY)
-    jmp     IdeWait_PollStatusFlagInBLwithTimeoutInBH
-
 
 ;--------------------------------------------------------------------