Changeset 613 in xtideuniversalbios for trunk/BIOS_Drive_Information_Tool/Src/Bios.asm

Timestamp:

May 27, 2021, 6:25:17 PM (4 years ago)

Author:

Tomi Tilli

Message:

Added more complex way to limit illegal P-CHS Cylinders. This way more modifications can be easily made later if necessary.
Updated biosdrvs to display unmodified and modified CHS.

File:

• trunk/BIOS_Drive_Information_Tool/Src/Bios.asm (modified) (2 diffs)

trunk/BIOS_Drive_Information_Tool/Src/Bios.asm

@@ -118 +118 @@
 ;               Set = BIOS error code stored in AH
 ;   Corrupts registers:
-;       ES
+;       CX, ES
 ;--------------------------------------------------------------------
 Bios_ReadAtaInfoFromDriveDLtoBX:
@@ -124 +124 @@
     push    ds
     pop     es
+    mov     cx, XUB_INT13h_SIGNATURE    ; Signature to read unaltered ATA ID
     mov     ah, GET_DRIVE_INFORMATION
     int     BIOS_DISK_INTERRUPT_13h