PPC32 ABI helper functions to restore FP register contents.
authordrepper <drepper>
Thu, 5 Sep 2002 08:59:21 +0000 (08:59 +0000)
committerdrepper <drepper>
Thu, 5 Sep 2002 08:59:21 +0000 (08:59 +0000)
sysdeps/powerpc/powerpc32/fpu/fprrest.S [new file with mode: 0644]

diff --git a/sysdeps/powerpc/powerpc32/fpu/fprrest.S b/sysdeps/powerpc/powerpc32/fpu/fprrest.S
new file mode 100644 (file)
index 0000000..4231780
--- /dev/null
@@ -0,0 +1,94 @@
+/* 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.  */
+
+/*
+    Floating Point Registers (FPRs) restore routine
+*/
+
+#include <sysdep.h>
+
+ENTRY(_restfpr_all)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf14)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_14)
+C_TEXT(_restf14):
+C_TEXT(_restfpr_14):   lfd     fp14,-144(r1)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf15)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_15)
+C_TEXT(_restf15):
+C_TEXT(_restfpr_15):   lfd     fp15,-136(r1)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf16)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_16)
+C_TEXT(_restf16):
+C_TEXT(_restfpr_16):   lfd     fp16,-128(r1)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf17)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_17)
+C_TEXT(_restf17):
+C_TEXT(_restfpr_17):   lfd     fp17,-120(r1)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf18)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_18)
+C_TEXT(_restf18):
+C_TEXT(_restfpr_18):   lfd     fp18,-112(r1)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf19)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_19)
+C_TEXT(_restf19):
+C_TEXT(_restfpr_19):   lfd     fp19,-104(r1)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf20)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_20)
+C_TEXT(_restf20):
+C_TEXT(_restfpr_20):   lfd     fp20,-96(r1)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf21)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_21)
+C_TEXT(_restf21):
+C_TEXT(_restfpr_21):   lfd     fp21,-88(r1)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf22)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_22)
+C_TEXT(_restf22):
+C_TEXT(_restfpr_22):   lfd     fp22,-80(r1)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf23)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_23)
+C_TEXT(_restf23):
+C_TEXT(_restfpr_23):   lfd     fp23,-72(r1)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf24)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_24)
+C_TEXT(_restf24):
+C_TEXT(_restfpr_24):   lfd     fp24,-64(r1)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf25)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_25)
+C_TEXT(_restf25):
+C_TEXT(_restfpr_25):   lfd     fp25,-56(r1)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf26)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_26)
+C_TEXT(_restf26):
+C_TEXT(_restfpr_26):   lfd     fp26,-48(r1)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf27)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_27)
+C_TEXT(_restf27):
+C_TEXT(_restfpr_27):   lfd     fp27,-40(r1)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf28)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_28)
+C_TEXT(_restf28):
+C_TEXT(_restfpr_28):   lfd     fp28,-32(r1)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restf29)
+               ASM_GLOBAL_DIRECTIVE C_TEXT(_restfpr_29)
+C_TEXT(_restf29):
+C_TEXT(_restfpr_29):   lwz     r0,8(r1)        #get return address from frame
+                       lfd     fp29,-24(r1)    #restore f29
+                       mtlr    r0              #move return address to LR
+                       lfd     fp30,-16(r1)    #restore f30
+                       lfd     fp31,-8(r1)     #restore f31
+                       blr                     #return