Changeset 42

Timestamp:

Apr 11, 2014, 10:42:11 PM (11 years ago)

Author:

Ben Rietbroek

Message:

JWasm version working [2012-02-16]

WARNING!!

All commits upto and including the commit of [2012-05-13] contain
a severe bug!! Building from these sources and then disabling
the 'force LBA' feature while also using the drive-letter feature or
editing the label can DESTROY THE MBR on ALL ATTACHED DISKS!!
DO NOT DISABLE 'FORCE LBA USAGE' WHEN BUILT FROM THE THESE COMMITS!!

Info

o DOS linkage calculates correct offsets
o RAW linkage calculates relative offsets (no fixups)

Problem

o Something goes wrong between the end of the image and the BSS.

Moving the BSS just after the image gives corruption.
(all floppy entries, FFH)
So, the start of the BSS gets overwrittenby something...

Location:

trunk/BOOTCODE

Files:

• AIR-BOOT.ASM (modified) (3 diffs)
• BLDDATE.ASM (modified) (1 diff)
• Makefile (modified) (2 diffs)
• REGULAR/STD_TEXT.ASM (modified) (1 diff)

trunk/BOOTCODE/AIR-BOOT.ASM

@@ -580 +580 @@
 ; time.
 ;
-;SEGMENTED   EQU 1
+SEGMENTED   EQU 1
 
 IFDEF   SEGMENTED
@@ -638 +638 @@
 
                 ; ID String, Date (DD,MM,CC,YY), Version Number, Language ID
-                db      'AiRBOOT', 15h, 02h, 20h, 12h, 01h, 08h, TXT_LanguageID
+                db      'AiRBOOT', 16h, 02h, 20h, 12h, 01h, 08h, TXT_LanguageID
 
                 ; Total Sectors Count.
@@ -1996 +1996 @@
                             ; with segment-concatenated layout.
                             ;
-                            org 0A000h                         ; Uninitialized
+                            ; What happens before this space ??
+                            ; If org 0 corruption occurs.
+                            ;
+                            org 02400h                         ; Uninitialized
 
 

trunk/BOOTCODE/BLDDATE.ASM

@@ -1 +1 @@
 IFDEF   JWASM
-    BUILD_DATE db 'Build Date: 15 Feb 2012 at 19:30:00                                 [JWasm]',0
+    BUILD_DATE db 'Build Date: 16 Feb 2012 at 03:00:00                                 [JWasm]',0
 ENDIF
 IFDEF   TASM
-    BUILD_DATE db 'Build Date: 15 Feb 2012 at 19:30:00                                  [Tasm]',0
+    BUILD_DATE db 'Build Date: 16 Feb 2012 at 03:00:00                                  [Tasm]',0
 ENDIF

trunk/BOOTCODE/Makefile

@@ -380 +380 @@
 #       @echo   FIXCODE
         $(CP) $(BASENAME).COM $(TARGET)
+        ndisasm $(BASENAME).COM > $(BASENAME).COM.NDA
+        ndisasm $(TARGET) > $(TARGET).NDA
 #       @echo $(%BLD_LANG)>$^.
         @if exist $^. @echo             $^. $(MSG_SUCCESS) - [$(%BLD_LANG) version]
@@ -391 +393 @@
 ###############################################################################
 $(BASENAME).COM:        .MULTIPLE $(BASENAME).OBJ
-#       $(LNK) $(LNK_FLAGS) file $^&.OBJ name $^. sys dos com
-        $(LNK) $(LNK_FLAGS) file $^&.OBJ name $^. form raw
+        $(LNK) $(LNK_FLAGS) file $^&.OBJ name $^. sys dos com
+#       $(LNK) $(LNK_FLAGS) file $^&.OBJ name $^. form raw
 #       @if exist $^. @echo             $^. $(MSG_SUCCESS)
 #       @echo.

trunk/BOOTCODE/REGULAR/STD_TEXT.ASM

@@ -42 +42 @@
 ;Copyright             db ' AiR-BOOT v1.0.8 - (c) 2012 M. Kiewitz  <<Release Candidate 1>> (bld: 20120124)', 0
 ;Copyright             db ' AiR-BOOT v1.0.8 - (c) 2012 M. Kiewitz  <<Release Candidate 2>> (bld: 20120214)', 0
-Copyright             db ' AiR-BOOT v1.0.8 - (c) 2012 M. Kiewitz   <<Internal Release 2b>> (bld: 20120215)', 0
+Copyright             db ' AiR-BOOT v1.0.8 - (c) 2012 M. Kiewitz  <<Internal Release 2c>> (bld: 20120216)', 0
 ;Copyright             db ' AiR-BOOT v1.0.8 - (c) 1998-2012 M. Kiewitz, Dedicated to Gerd Kiewitz', 0