Changeset 909c6e3 in mainline for arch/mips/src/start.S

Timestamp:

2005-09-07T09:44:30Z (20 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d246e7e

Parents:

24bd23a

Message:

MIPS exception now saves all necesssary information only on stack.

File:

• arch/mips/src/start.S (modified) (7 diffs)

arch/mips/src/start.S

@@ -32 +32 @@
 #include <arch/mm/page.h>
 #include <arch/asm/boot.h>
-#include <arch/context.h>
+#include <arch/context_offset.h>
         
 .text
@@ -56 +56 @@
         sw $a2,EOFFSET_A2(\r)
         sw $a3,EOFFSET_A3(\r)
-        sw $t0,EOFFSET_A4(\r)
+        sw $t0,EOFFSET_T0(\r)
         sw $t1,EOFFSET_T1(\r)
         sw $t2,EOFFSET_T2(\r)
@@ -87 +87 @@
         mfc0 $at, $status
         sw $at,EOFFSET_STATUS(\r)
+        mfc0 $at, $epc
+        sw $at,EOFFSET_EPC(\r)
 .endm
 
@@ -96 +98 @@
         lw $a2,EOFFSET_A2(\r)
         lw $a3,EOFFSET_A3(\r)
-        lw $t0,EOFFSET_A4(\r)
+        lw $t0,EOFFSET_T0(\r)
         lw $t1,EOFFSET_T1(\r)
         lw $t2,EOFFSET_T2(\r)
@@ -125 +127 @@
         lw $at,EOFFSET_STATUS(\r)
         mtc0 $at, $status
+        lw $at,EOFFSET_EPC(\r)
+        mtc0 $at, $epc
         
         lw $at,EOFFSET_AT(\r)
@@ -192 +196 @@
         add $sp, $k0, 0
 
-        jal exception
+        add $a0, $sp, 0 
+        jal exception /* exception(register_space) */
         nop
 
@@ -206 +211 @@
         add $sp, $k0, 0
 
-        jal tlb_refill
+        add $a0, $sp, 0 
+        jal tlb_refill /* tlb_refill(register_space) */
         nop