--- Libc/Libc-583/ppc/sys/_setjmp.h
+++ Libc/Libc-262.3.2/ppc/sys/_setjmp.h
@@ -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
@@ -35,18 +37,7 @@
  * is bcopy'd to a different alignment between the setjmp
  * and longjmp, we need to save the jmp_buf address in the
  * jmp_buf at setjmp time, so we can realign before reloading.
- *
- * ALSO NOTE: the typedef for jmpbufs in <ppc/setjmp.h> is
- * 192 ints (0x300 bytes) long, due to incorrectly assuming
- * that we need to save all 32 VRs in a jmpbuf.  This is
- * fortuitous, because when it came time to add additional
- * fields and expand GPRs for 64-bit mode, there was plenty
- * of unused space!
  */
- 
- /* 32-bit-mode layout */
- 
-#if defined(__ppc__)
  
 #define JMP_r1	0x00
 #define JMP_r2	0x04
@@ -71,9 +62,11 @@
 #define JMP_r31	0x50
 #define JMP_lr  0x54
 #define JMP_cr  0x58
-#define JMP_SIGFLAG 0x5c
-#define JMP_sig	0x60    /* reserve 8 bytes for sigmask */
-#define JMP_fpscr  0x68 /* reserve 8 bytes for FPSCR too */
+#define JMP_ctr	0x5c
+#define JMP_xer	0x60
+#define JMP_sig	0x64
+#define JMP_SIGFLAG 0x68
+#define JMP_flags 0x6c
 #define JMP_vrsave 0x70
 #define JMP_addr_at_setjmp 0x74
 /* 12 bytes padding here */
@@ -81,50 +74,5 @@
 /* save room for 12 VRs (v20-v31), or 0xC0 bytes */
 #define JMP_fp_base_addr 0x144
 /* save room for 18 FPRs (f14-f31), or 0x90 bytes */
-#define	JMP_ss_flags	 0x1d4
-#define JMP_buf_end 0x1d8
+#define JMP_buf_end 0x1d4
 
- 
- /* 64-bit-mode layout */
-
-#elif defined(__ppc64__)
-
-#define JMP_r1	0x00
-#define JMP_r2	0x08
-#define JMP_r13	0x10
-#define JMP_r14	0x18
-#define JMP_r15	0x20
-#define JMP_r16	0x28
-#define JMP_r17	0x30
-#define JMP_r18	0x38
-#define JMP_r19	0x40
-#define JMP_r20	0x48
-#define JMP_r21	0x50
-#define JMP_r22	0x58
-#define JMP_r23	0x60
-#define JMP_r24	0x68
-#define JMP_r25	0x70
-#define JMP_r26	0x78
-#define JMP_r27	0x80
-#define JMP_r28	0x88
-#define JMP_r29	0x90
-#define JMP_r30	0x98
-#define JMP_r31	0xa0
-#define JMP_lr  0xa8
-#define JMP_cr  0xb0
-#define JMP_sig	0xb8
-#define JMP_SIGFLAG 0xc0
-#define JMP_fpscr  0xc8
-#define JMP_vrsave 0xd0
-#define JMP_addr_at_setjmp 0xd8
-/* 12 bytes padding here */
-#define JMP_vr_base_addr 0x0ec
-/* save room for 12 VRs (v20-v31), or 0xC0 bytes */
-#define JMP_fp_base_addr 0x1ac
-/* save room for 18 FPRs (f14-f31), or 0x90 bytes */
-#define	JMP_ss_flags	 0x23c
-#define JMP_buf_end 0x240
-
-#else
-#error architecture not supported
-#endif