Changeset 117 for trunk/bootcode/regular/other.asm

Timestamp:

Apr 8, 2017, 12:27:15 AM (8 years ago)

Author:

Ben Rietbroek

Message:

Added more debug hooks [v1.1.1-testing]

CAUTION:
This is a testbuild !
AirBoot uses the BIOS to access disks and a small coding error can trash
partition tables or other vital disk structures. You are advised to make
backups of TRACK0 and EBRs before using this testbuild. More info at:
​https://rousseaux.github.io/netlabs.air-boot/pdf/AirBoot-v1.1.0-manual.pdf

File:

• trunk/bootcode/regular/other.asm (modified) (6 diffs)

trunk/bootcode/regular/other.asm

@@ -167 +167 @@
 
         ; Copyright
-        mov     si, offset Copyright
+        mov     si, [offset Copyright]
         call    MBR_Teletype
         xor     si,si
@@ -198 +198 @@
         mov     ah, 03h
         int     13h
+        ;!
+        ;! TODO: Check success
+        ;! Yes, we should check for errors here, coz it would mean AirBoot
+        ;! was loaded from a disk where the MBR cannot be written !
+        ;!
 
 ; =============================================================================
@@ -227 +232 @@
         pushf
 
-        mov      bx, offset [TrueSecs]
-        add      bx,cx
-        add      bx,cx
-        add      bx,cx
-        add      bx,cx
+        mov     bx, offset [TrueSecs]
+        add     bx,cx
+        add     bx,cx
+        add     bx,cx
+        add     bx,cx
+
+IFDEF   AUX_DEBUG
+        IF 0
+        pushf
+        pusha
+            mov     al, '#'
+            call    AuxIO_Teletype
+            mov     ax, [bx]
+            call    AuxIO_TeletypeHexWord
+            mov     al, '#'
+            call    AuxIO_Teletype
+            call    AuxIO_TeletypeNL
+        popa
+        popf
+        ENDIF
+ENDIF
+
         popf
 
@@ -276 +298 @@
 ; =============================================================================
 
-    IFDEF   AUX_DEBUG
-        ; Write some debug-info to the com-port
-        call     DEBUG_Dump1
+IFDEF   AUX_DEBUG
+    IF 1
+    call     DEBUG_Dump1
     ENDIF
+ENDIF
 
         ;~ jz      NoValidMasterLVM
@@ -299 +322 @@
 ;               call     AuxIO_TeletypeNL
 
-
+;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
         ; Huge Disk indicator
@@ -392 +415 @@
         call    PRECRAP_CheckConfiguration
 
+
+IFDEF   AUX_DEBUG
+        IF 1
+        mov     dl, [BIOS_BootDisk]
+        ;~ mov     dl, 81h
+        call    DriveIO_LocateMasterLVMSector
+        call    DEBUG_DumpRegisters
+        mov     si, offset [TmpSector]
+        call    AuxIO_DumpSector
+        ENDIF
+ENDIF
 
         ; =======================================