1 files changed, 79 insertions, 0 deletions
diff --git a/examples/ppc_longjmp.S b/examples/ppc_longjmp.S
new file mode 100644
index 0000000..ad8285a
--- /dev/null
+++ b/examples/ppc_longjmp.S
@@ -0,0 +1,79 @@
+/* longjmp for PowerPC.
+   Copyright (C) 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <ppc_asm.tmpl>
+
+# define JB_GPR1   0  /* Also known as the stack pointer */
+# define JB_GPR2   1
+# define JB_LR     2  /* The address we will return to */
+# define JB_GPRS   3  /* GPRs 14 through 31 are saved, 18 in total */
+# define JB_CR     21 /* Condition code registers. */
+# define JB_FPRS   22 /* FPRs 14 through 31 are saved, 18*2 words total */
+# define JB_SIZE   (58*4)
+
+#define FP(x...) x
+#define FP(x...) x
+
+.globl      longjmp;
+
+longjmp:
+	lwz r1,(JB_GPR1*4)(r3)
+	lwz r2,(JB_GPR2*4)(r3)
+	lwz r0,(JB_LR*4)(r3)
+	lwz r14,((JB_GPRS+0)*4)(r3)
+FP(	lfd 14,((JB_FPRS+0*2)*4)(r3))
+	lwz r15,((JB_GPRS+1)*4)(r3)
+FP(	lfd 15,((JB_FPRS+1*2)*4)(r3))
+	lwz r16,((JB_GPRS+2)*4)(r3)
+FP(	lfd 16,((JB_FPRS+2*2)*4)(r3))
+	lwz r17,((JB_GPRS+3)*4)(r3)
+FP(	lfd 17,((JB_FPRS+3*2)*4)(r3))
+	lwz r18,((JB_GPRS+4)*4)(r3)
+FP(	lfd 18,((JB_FPRS+4*2)*4)(r3))
+	lwz r19,((JB_GPRS+5)*4)(r3)
+FP(	lfd 19,((JB_FPRS+5*2)*4)(r3))
+	lwz r20,((JB_GPRS+6)*4)(r3)
+FP(	lfd 20,((JB_FPRS+6*2)*4)(r3))
+	mtlr r0
+	lwz r21,((JB_GPRS+7)*4)(r3)
+FP(	lfd 21,((JB_FPRS+7*2)*4)(r3))
+	lwz r22,((JB_GPRS+8)*4)(r3)
+FP(	lfd 22,((JB_FPRS+8*2)*4)(r3))
+	lwz r0,(JB_CR*4)(r3)
+	lwz r23,((JB_GPRS+9)*4)(r3)
+FP(	lfd 23,((JB_FPRS+9*2)*4)(r3))
+	lwz r24,((JB_GPRS+10)*4)(r3)
+FP(	lfd 24,((JB_FPRS+10*2)*4)(r3))
+	lwz r25,((JB_GPRS+11)*4)(r3)
+FP(	lfd 25,((JB_FPRS+11*2)*4)(r3))
+	mtcrf 0xFF,r0
+	lwz r26,((JB_GPRS+12)*4)(r3)
+FP(	lfd 26,((JB_FPRS+12*2)*4)(r3))
+	lwz r27,((JB_GPRS+13)*4)(r3)
+FP(	lfd 27,((JB_FPRS+13*2)*4)(r3))
+	lwz r28,((JB_GPRS+14)*4)(r3)
+FP(	lfd 28,((JB_FPRS+14*2)*4)(r3))
+	lwz r29,((JB_GPRS+15)*4)(r3)
+FP(	lfd 29,((JB_FPRS+15*2)*4)(r3))
+	lwz r30,((JB_GPRS+16)*4)(r3)
+FP(	lfd 30,((JB_FPRS+16*2)*4)(r3))
+	lwz r31,((JB_GPRS+17)*4)(r3)
+FP(	lfd 31,((JB_FPRS+17*2)*4)(r3))
+	mr r3,r4
+	blr