Changeset 241 in xtideuniversalbios for trunk/Assembly_Library/Src

Timestamp:

Feb 9, 2012, 11:08:59 AM (12 years ago)

Author:

gregli@…

google:author:

gregli@hotmail.com

Message:

Space optimizations in the Boot Menu and BootInfo routines, taking advantage of nested %s. Optimization in the init of RamVars to avoid writing the signature twice. Preparing for addition of serial floppy support, starting to break the assumption that our drives are always 80h or higher.

Location:

trunk/Assembly_Library/Src/Display

Files:

• DisplayFormat.asm (modified) (3 diffs)
• DisplayFormatCompressed.asm (modified) (1 diff)
• DisplayPrint.asm (modified) (1 diff)

trunk/Assembly_Library/Src/Display/DisplayFormat.asm

@@ -127 +127 @@
 .rgcFormatCharToLookupIndex:
 %ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
-    db      "aIAduxsSct-+%"
+    db      "aIAduxsSctz-+%"
 %else
-    db      "IAuxsc-"       ; Required by XTIDE Universal BIOS
+    db      "IAuxscz-"      ; Required by XTIDE Universal BIOS
 %endif
 .rgcFormatCharToLookupIndexEnd:
@@ -152 +152 @@
     dw      t_FormatRepeatCharacter
 %endif
+    dw      z_FormatStringFromSegmentZero
     dw      PrepareToPrependParameterWithSpaces
 %ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
@@ -344 +345 @@
 ALIGN JUMP_ALIGN
 s_FormatStringFromSegmentCS:
+    push    si
+    push    cx
+    mov     si, [bp]
+        
+    cmp     si, byte 07fh       ;  well within the boundaries of ROMVARS_size
+    jb      .notFormatted
+
+    dec     bp
+    dec     bp
+    call    DisplayFormat_ParseCharacters
+    inc     bp                  ; will be decremented after the call is done
+    inc     bp
+    jmp     .done
+        
+.notFormatted:  
+    call    DisplayPrint_NullTerminatedStringFromCSSI
+        
+.done:
+    pop     cx
+    pop     si
+    ret     
+
+ALIGN JUMP_ALIGN
+z_FormatStringFromSegmentZero:  
     xchg    si, [bp]
-    call    DisplayPrint_NullTerminatedStringFromCSSI
+    xor     bx, bx
+    call    DisplayPrint_NullTerminatedStringFromBXSI
     mov     si, [bp]
-    ret
+    ret     
 
 %ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS

trunk/Assembly_Library/Src/Display/DisplayFormatCompressed.asm

@@ -67 +67 @@
 DisplayFormatCompressed_ret:            ; jump target for other routines who need a "ret"
     ret
+
+DisplayFormatCompressed_Format_z:
+    xor     bx, bx
+    xchg    si, ax
+    jmp     short DisplayPrint_NullTerminatedStringFromBXSI
 
 DisplayFormatCompressed_Format_x:

trunk/Assembly_Library/Src/Display/DisplayPrint.asm

@@ -346 +346 @@
 ALIGN JUMP_ALIGN
 DisplayPrint_CharacterFromAL:
-%ifdef MODULE_STRINGS_COMPRESSED
     test    al,al
     jz      DisplayPrint_Ret
-%endif
+
     mov     ah, [VIDEO_BDA.displayContext+DISPLAY_CONTEXT.bAttribute]
     jmp     [VIDEO_BDA.displayContext+DISPLAY_CONTEXT.fnCharOut]