Changeset 233 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/FindDPT.asm

Timestamp:

Feb 4, 2012, 6:21:22 PM (12 years ago)

Author:

gregli@…

google:author:

gregli@hotmail.com

Message:

Serial Port: split single byte port and baud into two bytes, taking advantage of the two bytes in DPT_SERIAL, which supports more serial baud rates and in particular fixed a bug where a 4x client machine couldn't talk to a 115.2K server machine. This is a wide change, touching lots of files, but most are shallow changes. DetectPrint.asm took the most significant changes, now it calculates the baud rate to display instead of using characters provided by the Configurator. The Configurator now has a new menu flag, FLG_MENUITEM_CHOICESTRINGS, for specifying that values are not linear and they should be lookedup rather than indexed. Finally, another important bug fixed here is that in some error cases, the serial port code could get into an infinite loop waiting ont the hardware; now it has a timeout.

File:

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

trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/FindDPT.asm

@@ -124 +124 @@
 
 ;--------------------------------------------------------------------
-; IterateToDptWithInterruptInServiceFlagSet
+; IterateToDptWithFlagsHighInBL
 ;   Parameters:
 ;       DS:DI:  Ptr to DPT to examine
+;       BL:     Bit(s) to test in DPT.bFlagsHigh 
 ;   Returns:
 ;       CF:     Set if wanted DPT found
@@ -134 +135 @@
 ;--------------------------------------------------------------------
 ALIGN JUMP_ALIGN
-IterateToDptWithInterruptInServiceFlagSet:
-    test    BYTE [di+DPT.bFlagsHigh], FLGH_DPT_INTERRUPT_IN_SERVICE     ; Clears CF (but we need the clc
-                                                                        ; below anyway for callers above)
+IterateToDptWithFlagsHighInBL:      
+    test    BYTE [di+DPT.bFlagsHigh], bl        ; Clears CF (but we need the clc
+                                                ; below anyway for callers above)
     jnz     SHORT ReturnRightDPT
 
@@ -144 +145 @@
 
 ;--------------------------------------------------------------------
-; FindDPT_ToDSDIforInterruptInService
+; FindDPT_ToDSDIforSerialDevice
 ;   Parameters:
 ;       DS:     RAMVARS segment
@@ -154 +155 @@
 ;       SI
 ;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
-FindDPT_ToDSDIforInterruptInService:
-    mov     si, IterateToDptWithInterruptInServiceFlagSet
+ALIGN JUMP_ALIGN        
+FindDPT_ToDSDIforSerialDevice:          
+    mov     bl, FLGH_DPT_SERIAL_DEVICE
+; fall-through
+                
+;--------------------------------------------------------------------
+; FindDPT_ToDSDIforFlagsHigh
+;   Parameters:
+;       DS:     RAMVARS segment
+;       BL:     Bit(s) to test in DPT.bFlagsHigh
+;   Returns:
+;       DS:DI:  Ptr to DPT
+;       CF:     Set if wanted DPT found
+;               Cleared if DPT not found
+;   Corrupts registers:
+;       SI
+;--------------------------------------------------------------------
+ALIGN JUMP_ALIGN
+FindDPT_ToDSDIforFlagsHighInBL:     
+    mov     si, IterateToDptWithFlagsHighInBL
     ; Fall to IterateAllDPTs