Changeset 141 for trunk/src/os2ahci/init.asm

Timestamp:

Oct 2, 2012, 9:56:32 AM (13 years ago)

Author:

Markus Thielen

Message:

fixed #13 (kernel exit call for trap dumps)

File:

• trunk/src/os2ahci/init.asm (modified) (3 diffs)

trunk/src/os2ahci/init.asm

@@ -14 +14 @@
                 PUBLIC  _asm_strat           ; low-level strategy routine
                 PUBLIC  _asm_idc_entry       ; low-level IDC entry point 
+                PUBLIC  _asm_krnl_exit       ; low-level kernel exit routine
                 PUBLIC  _readl               ; MMIO read (32 bits)
                 PUBLIC  _writel              ; MMIO write (32 bits)
@@ -91 +92 @@
                 EXTRN   _reset_ctxhook : NEAR     ; C reset context hook
                 EXTRN   _engine_ctxhook : NEAR    ; C engine context hook
+                EXTRN   _apm_suspend : NEAR       ; C routine for INT13 IO enable
 _TEXT           ENDS
 
@@ -152 +154 @@
                 RET
 _asm_idc_entry  ENDP
+
+;  Kernel exit routine to enable INT13 I/O (called before a trap dump occurrs)
+_asm_krnl_exit  PROC    FAR
+
+                PUSH    ES
+                PUSH    DS
+                MOV     AX,DGROUP
+                MOV     DS,AX
+                CLD
+
+                ;  call C routine
+                CALL    _apm_suspend
+
+                POP     DS
+                POP     ES
+
+                RET
+_asm_krnl_exit  ENDP        
+        
 
                 .386