Changeset 614 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/AutoConfigure.asm

Timestamp:

Jun 10, 2021, 4:56:34 PM (4 years ago)

Author:

Krister Nordvall

Message:

Changes:

• BIOSDRVS should now build again (broke in r613).
• Removed the NO_ATAID_CORRECTION define from the Tiny build.
• Added a new configuration option to skip detection of slave drives.
• Made FLASH_SIGNATURE 2 bytes shorter to free up ROM space.
• "Auto Configure" in XTIDECFG should now detect if running on an Olivetti M24, AT&T PC6300, Xerox 6060 or Logabax Persona 1600 and automatically select the fastest compatible transfer mode/device type for any IDE controllers found in the system.
• Cleaned out some duplicate/unused definitions.

File:

• trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/AutoConfigure.asm (modified) (2 diffs)

trunk/XTIDE_Universal_BIOS_Configurator_v2/Src/AutoConfigure.asm

@@ -42 +42 @@
     pop     ds                              ; ROMVARS now in DS:DI
     call    ChecksumSystemBios
+    call    DetectOlivettiM24
     call    ResetIdevarsToDefaultValues
     call    DetectIdePortsAndDevices
@@ -139 +140 @@
 
 ;--------------------------------------------------------------------
+; DetectOlivettiM24
+;   Parameters:
+;       Nothing
+;   Returns:
+;       ZF:     Set if computer is not an Olivetti M24
+;               Clear if computer is an Olivetti M24
+;   Corrupts registers:
+;       AX, BX, CX, DX
+;--------------------------------------------------------------------
+ALIGN JUMP_ALIGN
+DetectOlivettiM24:
+    mov     ah, 0FEh    ; Request the current date and time
+    mov     ch, 0FFh    ; Set the hours to an invalid value
+    int     BIOS_TIME_PCI_PNP_INTERRUPT_1Ah
+    inc     ch          ; Hours changed?
+    jz      SHORT .ThisIsNotAnOlivettiM24
+    mov     BYTE [cs:IsOlivettiM24], 1
+.ThisIsNotAnOlivettiM24:
+    ret
+
+IsOlivettiM24:
+    db      0
+
+
+;--------------------------------------------------------------------
 ; ResetIdevarsToDefaultValues
 ;   Parameters: