Coldfire: Clear the .bss section

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5362 a1c6a512-1295-4272-9138-f99709370657
2004-10-26 22:24:43 +00:00 · 2004-10-26 22:24:43 +00:00 · bf41fcee8b
commit bf41fcee8b
parent c32272b15b
1 changed files with 10 additions and 0 deletions
--- a/firmware/crt0.S
+++ b/firmware/crt0.S
@ -94,6 +94,16 @@ start:
        bra    .iramloop
 .iramloopend:

+        lea    _edata,%a2
+        lea    _end,%a4
+        clr.l  %d0
+.edataloop:
+        cmp.l  %a2,%a4
+        beq    .edataloopend
+        move.w %d0,(%a2)+
+        bra    .edataloop
+.edataloopend:
+
        lea    _datacopy,%a2
        lea    _datastart,%a3
        lea    _dataend,%a4