aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/powerpc/powerpc32/gprrest0.S
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/powerpc/powerpc32/gprrest0.S')
-rw-r--r--sysdeps/powerpc/powerpc32/gprrest0.S69
1 files changed, 69 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/gprrest0.S b/sysdeps/powerpc/powerpc32/gprrest0.S
new file mode 100644
index 0000000000..cf493f0c47
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/gprrest0.S
@@ -0,0 +1,69 @@
+/* Copyright (C) 2000, 2001 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. */
+
+/*
+ General Purpose Register (GPR) restore routine
+ when Floating Point Registers (FPRs) are not saved
+
+ Note: This restore routine must not be called when GPR30 or
+ GPR31, or both, are the only registers beings saved. In these
+ cases, the saving and restoring must be done inline.
+*/
+
+#include <sysdep.h>
+
+ENTRY(_restgpr0_all)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_13)
+C_TEXT(_restgpr0_13): lwz r13,-76(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_14)
+C_TEXT(_restgpr0_14): lwz r14,-72(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_15)
+C_TEXT(_restgpr0_15): lwz r15,-68(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_16)
+C_TEXT(_restgpr0_16): lwz r16,-64(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_17)
+C_TEXT(_restgpr0_17): lwz r17,-60(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_18)
+C_TEXT(_restgpr0_18): lwz r18,-56(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_19)
+C_TEXT(_restgpr0_19): lwz r19,-52(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_20)
+C_TEXT(_restgpr0_20): lwz r20,-48(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_21)
+C_TEXT(_restgpr0_21): lwz r21,-44(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_22)
+C_TEXT(_restgpr0_22): lwz r22,-40(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_23)
+C_TEXT(_restgpr0_23): lwz r23,-36(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_24)
+C_TEXT(_restgpr0_24): lwz r24,-32(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_25)
+C_TEXT(_restgpr0_25): lwz r25,-28(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_26)
+C_TEXT(_restgpr0_26): lwz r26,-24(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_27)
+C_TEXT(_restgpr0_27): lwz r27,-20(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_28)
+C_TEXT(_restgpr0_28): lwz r28,-16(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_restgpr0_29)
+C_TEXT(_restgpr0_29): lwz r0,8(r1) #get return address from frame
+ lwz r29,-12(r1) #restore r29
+ mtlr r0 #move return address to LR
+ lwz r30,-8(r1) #restore r30
+ lwz r31,-4(r1) #restore r31
+ blr #return