X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fgeekos%2Flowlevel.asm;h=30979decebd40b0bad32b909f184c31d4bc5f1ad;hb=663dc1f26febeb73037e6f68ea7177927d1338ec;hp=fe3b61ba659a648fc4d7a6ea80f72e17215b17c2;hpb=04fc4c8fbac29e04f0d0817a2906687c2c972559;p=palacios.git

diff --git a/palacios/src/geekos/lowlevel.asm b/palacios/src/geekos/lowlevel.asm
index fe3b61b..30979de 100644
--- a/palacios/src/geekos/lowlevel.asm
+++ b/palacios/src/geekos/lowlevel.asm
@@ -2,7 +2,7 @@
 ; Low level interrupt/thread handling code for GeekOS.
 ; Copyright (c) 2001,2003,2004 David H. Hovemeyer <daveho@cs.umd.edu>
 ; Copyright (c) 2003, Jeffrey K. Hollingsworth <hollings@cs.umd.edu>
-; $Revision: 1.5 $
+; $Revision: 1.8 $
 
 ; This is free software.  You are permitted to use,
 ; redistribute, and modify it as specified in the file "COPYING".
@@ -126,6 +126,10 @@ IMPORT Make_Runnable
 ; Function to activate a new user context (if needed).
 IMPORT Switch_To_User_Context
 
+; Debug functions
+IMPORT SerialPrintHex
+IMPORT SerialPutChar
+
 ; Sizes of interrupt handler entry points for interrupts with
 ; and without error codes.  The code in idt.c uses this
 ; information to infer the layout of the table of interrupt
@@ -421,6 +425,17 @@ Handle_Interrupt:
 	mov	esi, [esp+REG_SKIP]	; get interrupt number
 	mov	ebx, [eax+esi*4]	; get address of handler function
 
+;	push	esi
+;	call	SerialPrintHex
+;	pop	esi
+
+;	push 	eax
+;	mov	eax, 0xa
+;	push 	eax
+;	call 	SerialPutChar
+;	pop	eax
+;	pop	eax
+
 	; Call the handler.
 	; The argument passed is a pointer to an Interrupt_State struct,
 	; which describes the stack layout for all interrupts.
@@ -457,12 +472,64 @@ Handle_Interrupt:
 	mov	[g_needReschedule], dword 0
 
 .restore:
+
+;	push	ebp
+;	mov	ebp, esp
+;	pusha	
+;
+;	mov	eax, 0xa
+;	push 	eax
+;	call 	SerialPutChar
+;	pop	eax
+;	mov	eax, 0xa
+;	push 	eax
+;	call 	SerialPutChar
+;	pop	eax
+;
+;        mov     ecx, 4
+;        mov     edx, 24 
+;
+;.loop:
+;	mov     eax, [ebp + ecx]
+;	      
+;        push    eax
+;	call	SerialPrintHex
+;	pop	eax
+;
+;	mov	eax, 0xa
+;	push 	eax
+;	call 	SerialPutChar
+;	pop	eax
+;        
+;        add     ecx, 4
+;     	dec     edx
+;	jnz     .loop
+;
+;
+;	popa
+;	pop 	ebp
+	
 	; Activate the user context, if necessary.
 	Activate_User_Context
 
 	; Restore registers
 	Restore_Registers
 
+
+;	pusha	
+
+;	mov	eax, 0xaa
+;	push 	eax
+;	call	SerialPrintHex
+;	pop	eax
+
+;	mov	eax, 0xa
+;	push 	eax
+;	call 	SerialPutChar
+;	pop	eax
+
+;	popa
+
 	; Return from the interrupt.
 	iret