Changeset 86 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Initialization/DetectDrives.asm

Timestamp:

Jan 25, 2011, 9:13:56 PM (14 years ago)

Author:

krille_n_@…

google:author:

krille_n_@hotmail.com

Message:

Size optimizations in various files in the XTIDE BIOS.
Also added a new include file for generic macros (macros.inc).

File:

• trunk/XTIDE_Universal_BIOS/Src/Initialization/DetectDrives.asm (modified) (4 diffs)

trunk/XTIDE_Universal_BIOS/Src/Initialization/DetectDrives.asm

@@ -1 @@
-; File name     :   DetectDrives.asm
 ; Project name  :   IDE BIOS
-; Created date  :   17.3.2010
-; Last update   :   23.8.2010
-; Author        :   Tomi Tilli
 ; Description   :   Functions for detecting drive for the BIOS.
-
 
 ; Section containing code
@@ -80 +75 @@
 DetectDrives_DetectMasterDrive:
     mov     bh, MASK_IDE_DRVHD_SET      ; Select Master drive
-    jmp     SHORT DetectDrives_StartDetection
-ALIGN JUMP_ALIGN
+    SKIP2B  ax                          ; mov ax, <next instruction>
 DetectDrives_DetectSlaveDrive:
     mov     bh, MASK_IDE_DRVHD_SET | FLG_IDE_DRVHD_DRV
@@ -134 +128 @@
     call    AH25h_GetDriveInfo
     mov     si, di                      ; ES:SI now points to ATA information
-    ret
-
-
-;--------------------------------------------------------------------
-; Reads ATAPI information from the drive (for CD/DVD-ROMs).
-;
-; DetectDrives_ReadAtapiInfoFromDrive
-;   Parameters:
-;       BH:     Drive Select byte for Drive and Head Register
-;       CS:BP:  Ptr to IDEVARS for the drive
-;       DS:     RAMVARS segment
-;       ES:     Zero (BDA segment)
-;   Returns:
-;       ES:SI   Ptr to ATAPI information (read with IDENTIFY PACKET DEVICE command)
-;       CF:     Cleared if ATAPI-information read successfully
-;               Set if any error
-;   Corrupts registers:
-;       AX, BL, CX, DX, DI
-;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
-DetectDrives_ReadAtapiInfoFromDrive:
-    stc
     ret
 
@@ -188 +160 @@
 
 ;--------------------------------------------------------------------
+; Reads ATAPI information from the drive (for CD/DVD-ROMs).
+;
+; DetectDrives_ReadAtapiInfoFromDrive
+;   Parameters:
+;       BH:     Drive Select byte for Drive and Head Register
+;       CS:BP:  Ptr to IDEVARS for the drive
+;       DS:     RAMVARS segment
+;       ES:     Zero (BDA segment)
+;   Returns:
+;       ES:SI   Ptr to ATAPI information (read with IDENTIFY PACKET DEVICE command)
+;       CF:     Cleared if ATAPI-information read successfully
+;               Set if any error
+;   Corrupts registers:
+;       AX, BL, CX, DX, DI
+;--------------------------------------------------------------------
+ALIGN JUMP_ALIGN
+DetectDrives_ReadAtapiInfoFromDrive:
+    ;stc
+    ;ret
+    ; Fall through to DetectDrives_CreateBiosTablesForCDROM
+
+
+;--------------------------------------------------------------------
 ; Creates all BIOS tables for detected CD/DVD-ROM.
 ;