Changeset 203 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/FindDPT.asm

Timestamp:

Nov 23, 2011, 8:42:19 PM (12 years ago)

Author:

gregli@…

google:author:

gregli@hotmail.com

Message:

Reworked the 'skip detecting the slave if there was no master' code to be more complete (includes configurator drives) and to take into account int13h/25h calls. Some of the changes in my last checkin have been rolled back as a result (they are no longer needed). I did take a byte out of RAMVARS, but there was an alignment byte available for the taking. I also added a perl script for padding and adding the checksum byte to a binary image, which can be invoked manually or with 'make checksum'.

File:

• trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/FindDPT.asm (modified) (4 diffs)

trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/FindDPT.asm

@@ -124 +124 @@
 
 ;--------------------------------------------------------------------
-; IterateToDptWithFlagsHighSet:
+; IterateToDptWithInterruptInServiceFlagSet
 ;   Parameters:
 ;       DS:DI:  Ptr to DPT to examine
-;       AL:     Bit in bFlagsHigh to test
 ;   Returns:
 ;       CF:     Set if wanted DPT found
@@ -135 +134 @@
 ;--------------------------------------------------------------------
 ALIGN JUMP_ALIGN
-IterateToDptWithFlagsHighSet:
-    test    BYTE [di+DPT.bFlagsHigh], al    ; Clears CF (but we need the clc below anyway callers above)
+IterateToDptWithInterruptInServiceFlagSet:
+    test    BYTE [di+DPT.bFlagsHigh], FLGH_DPT_INTERRUPT_IN_SERVICE     ; Clears CF (but we need the clc
+                                                                        ; below anyway for callers above)
     jnz     SHORT ReturnRightDPT
 
@@ -145 +145 @@
 ;--------------------------------------------------------------------
 ; FindDPT_ToDSDIforInterruptInService
-; FindDPT_ToDSDIforSerialDevice
 ;   Parameters:
 ;       DS:     RAMVARS segment
@@ -153 +152 @@
 ;               Cleared if DPT not found
 ;   Corrupts registers:
-;       SI, AX, BX (for SerialDevice only)
+;       SI
 ;--------------------------------------------------------------------
 ALIGN JUMP_ALIGN
-        
-%ifdef MODULE_SERIAL
-FindDPT_ToDSDIforSerialDevice:  
-    mov     al, FLGH_DPT_SERIAL_DEVICE
-
-    SKIP2B  bx
-%endif
-        
-; do not align due to SKIP2B above
 FindDPT_ToDSDIforInterruptInService:
-    mov     al, FLGH_DPT_INTERRUPT_IN_SERVICE
-
-    mov     si, IterateToDptWithFlagsHighSet
+    mov     si, IterateToDptWithInterruptInServiceFlagSet
     ; Fall to IterateAllDPTs