--- Libc/Libc-498/ppc/sys/longjmp.s
+++ Libc/Libc-320/ppc/sys/longjmp.s
@@ -2,6 +2,8 @@
  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
+ * 
+ * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
@@ -34,14 +36,8 @@
  *		Created. Derived from _setjmp.s, setjmp.c and setjmp.s
  */
 
-/* We use mode-independent "g" opcodes such as "stg", and/or
- * mode-independent macros such as MI_GET_ADDRESS.  These expand
- * into word operations when targeting __ppc__, and into doubleword
- * operations when targeting __ppc64__.
- */
-#include <architecture/ppc/mode_independent_asm.h>
-
 #include "SYS.h"
+#include <architecture/ppc/asm_help.h>
 #include "_setjmp.h"
 
 /*
@@ -50,35 +46,21 @@
 
 /*	void siglongjmp(sigjmp_buf env, int val); */
 
-MI_ENTRY_POINT(_siglongjmp)
-	lg      r0, JMP_SIGFLAG(r3)	; load sigflag saved by siglongjmp()
-	cmpgi   cr1,r0,0			; this changes cr1 which is volatile
-	mr      r30, r3             ; preserve args across _sigsetmask
-   	mr      r31, r4
-	beq--   cr1, L__exit        ; if r0 == 0 do _longjmp()
+LEAF(_siglongjmp)
+	lwz r0, JMP_SIGFLAG(r3)	; load sigflag saved by siglongjmp()
+	cmpwi cr1,r0,0			; this changes cr1[EQ] which is volatile
+	beq- cr1, L__longjmp	; if r0 == 0 do _longjmp()
 	; else *** fall through *** to longjmp()
 
 /*	void longjmp(jmp_buf env, int val); */
 
-MI_ENTRY_POINT(_longjmp)
-	mr      r30, r3             ; preserve args across _sigsetmask
-   	mr      r31, r4
-
-    /* NB: this code assumes the signal mask is an int.  Change the "lwz" below
-     * if not. The JMP_sig field is already 8 bytes in the jmpbuf.
-     */
-	lwz     r3, JMP_sig(r3)		; restore the signal mask
-	MI_CALL_EXTERNAL(_sigsetmask)   // make a (deprecated!) syscall to set the mask
-L__exit:	
-	lwz		r3,JMP_ss_flags(r30)
-	MI_CALL_EXTERNAL(__sigunaltstack)
-L__exit2:
-	mr      r3, r30
-	mr      r4, r31
-	MI_BRANCH_EXTERNAL(__longjmp)
-
-
-
-
-
-
+LEAF(_longjmp)
+L_longjmp:
+	mr r30, r3
+	mr r31, r4
+	lwz r3, JMP_sig(r3)		; restore the signal mask
+	CALL_EXTERN(_sigsetmask)
+	mr r4, r31
+	mr r3, r30
+L__longjmp:
+	BRANCH_EXTERN(__longjmp)