* rl78/crt0.S (_start): Fixed code that clears .bss

11 years ago · 9e8f756124
2 changed files with 16 additions and 10 deletions
--- a/libgloss/ChangeLog
+++ b/libgloss/ChangeLog
@ -1,3 +1,7 @@
+2015-10-20  Kaushik Phatak <kaushik.phatak@kpit.com>
+
+        * rl78/crt0.S (_start): Fixed code that clears .bss
+
 2015-10-06  Nick Clifton  <nickc@redhat.com>

 	* msp430/msp430-sim.ld: Add .persistent section.
--- a/libgloss/rl78/crt0.S
+++ b/libgloss/rl78/crt0.S
@ -176,16 +176,18 @@ _start:

 ;; block fill to .bss

-	movw	bc, #__bsssize
-	movw	ax, #0
-1:	
-	cmpw	ax, bc
-	bz	$1f
-	movw	__bssstart[bc], ax
-	decw	bc
-	decw	bc
-	br	$1b
-1:	
+	movw    bc, #__bsssize
+	movw    ax, #0
+	cmpw    ax, bc
+	bz      $_bss_zero_done
+1:
+	decw    bc
+	decw    bc
+	movw    __bssstart[bc], ax
+	cmpw    ax, bc
+	bnz      $1b
+
+_bss_zero_done:

 	call	!!__rl78_init