Changeset 52 in xtideuniversalbios for trunk/Assembly_Library/Src/Keyboard/Keyboard.asm

Timestamp:

Oct 12, 2010, 6:51:07 PM (14 years ago)

Author:

aitotat

google:author:

aitotat

Message:

Changes to Assembly Library:
Completely rewritten line splitting (slower but no need to modify string).
Some changes to string processing functions.
Saved few bytes from CGA detection.

File:

• trunk/Assembly_Library/Src/Keyboard/Keyboard.asm (modified) (2 diffs)

trunk/Assembly_Library/Src/Keyboard/Keyboard.asm

@@ -2 +2 @@
 ; Project name  :   Assembly Library
 ; Created date  :   5.7.2010
-; Last update   :   7.10.2010
+; Last update   :   12.10.2010
 ; Author        :   Tomi Tilli
 ; Description   :   Functions for managing keyboard.
@@ -26 +26 @@
 ALIGN JUMP_ALIGN
 Keyboard_ReadUserInputtedWordWhilePrinting:
-    push    es
-    push    di
+    push    ds
+    push    si
     push    cx
 
-    eENTER_STRUCT BUFFER_SIZE_FOR_WORD_INPUT
-    call    Memory_CopySSBPtoESDI
-
     mov     cx, BUFFER_SIZE_FOR_WORD_INPUT
+    call    Memory_ReserveCXbytesFromStackToDSSI
+
     call    Char_GetFilterFunctionToDXforNumericBaseInBX
+    call    Memory_ExchangeDSSIwithESDI
     call    Keyboard_ReadUserInputtedStringToESDIWhilePrinting
-    jz      SHORT .Return
-
-    call    Memory_ExchangeDSSIwithESDI
+    call    Memory_ExchangeDSSIwithESDI ; Does not modify FLAGS
+    jz      SHORT .CancelledByUser
+
     call    String_ConvertWordToAXfromStringInDSSIwithBaseInBX
-    call    Memory_ExchangeDSSIwithESDI
-.Return:
-    eLEAVE_STRUCT BUFFER_SIZE_FOR_WORD_INPUT
+.CancelledByUser:
+    add     sp, BYTE BUFFER_SIZE_FOR_WORD_INPUT
     test    cx, cx                  ; Set ZF if string length is zero
     pop     cx
-    pop     di
-    pop     es
+    pop     si
+    pop     ds
     ret