Changeset 554 for trunk/softs/tsar_boot/src/reset.S

Timestamp:

Oct 22, 2013, 8:15:05 PM (10 years ago)

Author:

bouyer

Message:

Make sure the boot loader won't try to write to the ROM.
Store read-write data in BSS along with the stack at seg_stack_base.

File:

• trunk/softs/tsar_boot/src/reset.S (modified) (2 diffs)

trunk/softs/tsar_boot/src/reset.S

@@ -139 +139 @@
     /* Initializes stack pointer */
 
-    la      k1,     seg_stack_base
-    li      k0,     BOOT_STACK_SIZE
-    addu    sp,     k1,     k0      /* sp <= seg_stack_base + BOOT_STACK_SIZE */
+    la      sp,     stk
 
     la      a0,     versionstr
@@ -220 +218 @@
     .set reorder
 
+    .section .data
+    .space BOOT_STACK_SIZE
+stk:
+    .space 1
+
 /*
  * vim: tabstop=4 : shiftwidth=4 : expandtab