Changeset 971cf31f in mainline for arch/mips32/src/start.S

Timestamp:

2006-06-10T11:05:21Z (19 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

0182a665

Parents:

88636f68

Message:

update mips32 boot loading API

File:

• arch/mips32/src/start.S (modified) (1 diff)

arch/mips32/src/start.S

@@ -183 +183 @@
         lui $sp, %hi(end_stack)
         ori $sp, $sp, %lo(end_stack)
-
+        
+        /* $a1 contains physical address of bootinfo_t */
+        /* $a2 contains size of bootinfo_t */
+        
+        beq $a2, $0, bootinfo_end
+        
         /* Not sure about this, but might be needed for PIC code???? */
         lui $gp, 0x8000
+        
+        lui $a3, 0x8000
+        addu $a1, $a1, $a3
+        
+        lui $a3, %hi(bootinfo)
+        ori $a3, $a3, %lo(bootinfo)
+        
+        bootinfo_loop:
+                
+                lw $v0, 0($a1)
+                sw $v0, 0($a3)
+                
+                addi $a1, $a1, 4
+                addi $a3, $a3, 4
+                addi $a2, $a2, -4
+                
+                bgtz $a2, bootinfo_loop
+                nop
+                
+        bootinfo_end:
         
         jal arch_pre_main