aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/powerpc/powerpc32/fpu
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/powerpc/powerpc32/fpu')
-rw-r--r--sysdeps/powerpc/powerpc32/fpu/Makefile3
-rw-r--r--sysdeps/powerpc/powerpc32/fpu/__longjmp.S74
-rw-r--r--sysdeps/powerpc/powerpc32/fpu/fprrest.S94
-rw-r--r--sysdeps/powerpc/powerpc32/fpu/fprsave.S93
-rw-r--r--sysdeps/powerpc/powerpc32/fpu/s_copysign.S50
-rw-r--r--sysdeps/powerpc/powerpc32/fpu/s_copysignf.S1
-rw-r--r--sysdeps/powerpc/powerpc32/fpu/setjmp.S73
7 files changed, 388 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/fpu/Makefile b/sysdeps/powerpc/powerpc32/fpu/Makefile
new file mode 100644
index 0000000000..e05073970d
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/fpu/Makefile
@@ -0,0 +1,3 @@
+ifeq ($(subdir),misc)
+sysdep_routines += fprsave fprrest
+endif
diff --git a/sysdeps/powerpc/powerpc32/fpu/__longjmp.S b/sysdeps/powerpc/powerpc32/fpu/__longjmp.S
new file mode 100644
index 0000000000..7b2dc26cb8
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/fpu/__longjmp.S
@@ -0,0 +1,74 @@
+/* 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 <sysdep.h>
+#define _ASM
+#define _SETJMP_H
+#include <bits/setjmp.h>
+#include <bp-sym.h>
+#include <bp-asm.h>
+
+ENTRY (BP_SYM (__longjmp))
+ CHECK_BOUNDS_BOTH_WIDE_LIT (r3, r8, r9, JB_SIZE)
+
+ 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)
+ lfd fp14,((JB_FPRS+0*2)*4)(r3)
+ lwz r15,((JB_GPRS+1)*4)(r3)
+ lfd fp15,((JB_FPRS+1*2)*4)(r3)
+ lwz r16,((JB_GPRS+2)*4)(r3)
+ lfd fp16,((JB_FPRS+2*2)*4)(r3)
+ lwz r17,((JB_GPRS+3)*4)(r3)
+ lfd fp17,((JB_FPRS+3*2)*4)(r3)
+ lwz r18,((JB_GPRS+4)*4)(r3)
+ lfd fp18,((JB_FPRS+4*2)*4)(r3)
+ lwz r19,((JB_GPRS+5)*4)(r3)
+ lfd fp19,((JB_FPRS+5*2)*4)(r3)
+ lwz r20,((JB_GPRS+6)*4)(r3)
+ lfd fp20,((JB_FPRS+6*2)*4)(r3)
+ mtlr r0
+ lwz r21,((JB_GPRS+7)*4)(r3)
+ lfd fp21,((JB_FPRS+7*2)*4)(r3)
+ lwz r22,((JB_GPRS+8)*4)(r3)
+ lfd fp22,((JB_FPRS+8*2)*4)(r3)
+ lwz r0,(JB_CR*4)(r3)
+ lwz r23,((JB_GPRS+9)*4)(r3)
+ lfd fp23,((JB_FPRS+9*2)*4)(r3)
+ lwz r24,((JB_GPRS+10)*4)(r3)
+ lfd fp24,((JB_FPRS+10*2)*4)(r3)
+ lwz r25,((JB_GPRS+11)*4)(r3)
+ lfd fp25,((JB_FPRS+11*2)*4)(r3)
+ mtcrf 0xFF,r0
+ lwz r26,((JB_GPRS+12)*4)(r3)
+ lfd fp26,((JB_FPRS+12*2)*4)(r3)
+ lwz r27,((JB_GPRS+13)*4)(r3)
+ lfd fp27,((JB_FPRS+13*2)*4)(r3)
+ lwz r28,((JB_GPRS+14)*4)(r3)
+ lfd fp28,((JB_FPRS+14*2)*4)(r3)
+ lwz r29,((JB_GPRS+15)*4)(r3)
+ lfd fp29,((JB_FPRS+15*2)*4)(r3)
+ lwz r30,((JB_GPRS+16)*4)(r3)
+ lfd fp30,((JB_FPRS+16*2)*4)(r3)
+ lwz r31,((JB_GPRS+17)*4)(r3)
+ lfd fp31,((JB_FPRS+17*2)*4)(r3)
+ mr r3,r4
+ blr
+END (BP_SYM (__longjmp))
diff --git a/sysdeps/powerpc/powerpc32/fpu/fprrest.S b/sysdeps/powerpc/powerpc32/fpu/fprrest.S
new file mode 100644
index 0000000000..42317809eb
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/fpu/fprrest.S
@@ -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
diff --git a/sysdeps/powerpc/powerpc32/fpu/fprsave.S b/sysdeps/powerpc/powerpc32/fpu/fprsave.S
new file mode 100644
index 0000000000..d7bc1ab7dc
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/fpu/fprsave.S
@@ -0,0 +1,93 @@
+/* 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) save routine
+*/
+
+#include <sysdep.h>
+
+ENTRY(_savefpr_all)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef14)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_14)
+C_TEXT(_savef14):
+C_TEXT(_savefpr_14): stfd fp14,-144(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef15)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_15)
+C_TEXT(_savef15):
+C_TEXT(_savefpr_15): stfd fp15,-136(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef16)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_16)
+C_TEXT(_savef16):
+C_TEXT(_savefpr_16): stfd fp16,-128(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef17)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_17)
+C_TEXT(_savef17):
+C_TEXT(_savefpr_17): stfd fp17,-120(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef18)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_18)
+C_TEXT(_savef18):
+C_TEXT(_savefpr_18): stfd fp18,-112(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef19)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_19)
+C_TEXT(_savef19):
+C_TEXT(_savefpr_19): stfd fp19,-104(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef20)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_20)
+C_TEXT(_savef20):
+C_TEXT(_savefpr_20): stfd fp20,-96(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef21)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_21)
+C_TEXT(_savef21):
+C_TEXT(_savefpr_21): stfd fp21,-88(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef22)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_22)
+C_TEXT(_savef22):
+C_TEXT(_savefpr_22): stfd fp22,-80(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef23)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_23)
+C_TEXT(_savef23):
+C_TEXT(_savefpr_23): stfd fp23,-72(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef24)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_24)
+C_TEXT(_savef24):
+C_TEXT(_savefpr_24): stfd fp24,-64(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef25)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_25)
+C_TEXT(_savef25):
+C_TEXT(_savefpr_25): stfd fp25,-56(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef26)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_26)
+C_TEXT(_savef26):
+C_TEXT(_savefpr_26): stfd fp26,-48(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef27)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_27)
+C_TEXT(_savef27):
+C_TEXT(_savefpr_27): stfd fp27,-40(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef28)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_28)
+C_TEXT(_savef28):
+C_TEXT(_savefpr_28): stfd fp28,-32(r1)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savef29)
+ ASM_GLOBAL_DIRECTIVE C_TEXT(_savefpr_29)
+C_TEXT(_savef29):
+C_TEXT(_savefpr_29): stfd fp29,-24(r1) #save f29
+ stfd fp30,-16(r1) #save f30
+ stfd fp31,-8(r1) #save f31
+ stw r0,8(r1) #save LR in callers frame
+ blr #return
diff --git a/sysdeps/powerpc/powerpc32/fpu/s_copysign.S b/sysdeps/powerpc/powerpc32/fpu/s_copysign.S
new file mode 100644
index 0000000000..933435da3d
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/fpu/s_copysign.S
@@ -0,0 +1,50 @@
+/* Copy a sign bit between floating-point values.
+ Copyright (C) 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. */
+
+/* This has been coded in assembler because GCC makes such a mess of it
+ when it's coded in C. */
+
+#include <sysdep.h>
+
+ENTRY(__copysign)
+/* double [f1] copysign (double [f1] x, double [f2] y);
+ copysign(x,y) returns a value with the magnitude of x and
+ with the sign bit of y. */
+ stwu r1,-16(r1)
+ stfd fp2,8(r1)
+ lwz r3,8(r1)
+ cmpwi r3,0
+ addi r1,r1,16
+ blt L(0)
+ fabs fp1,fp1
+ blr
+L(0): fnabs fp1,fp1
+ blr
+ END (__copysign)
+
+weak_alias(__copysign,copysign)
+
+/* It turns out that it's safe to use this code even for single-precision. */
+weak_alias(__copysign,copysignf)
+strong_alias(__copysign,__copysignf)
+
+#ifdef NO_LONG_DOUBLE
+weak_alias(__copysign,copysignl)
+strong_alias(__copysign,__copysignl)
+#endif
diff --git a/sysdeps/powerpc/powerpc32/fpu/s_copysignf.S b/sysdeps/powerpc/powerpc32/fpu/s_copysignf.S
new file mode 100644
index 0000000000..e05438ae7d
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/fpu/s_copysignf.S
@@ -0,0 +1 @@
+/* __copysignf is in s_copysign.S */
diff --git a/sysdeps/powerpc/powerpc32/fpu/setjmp.S b/sysdeps/powerpc/powerpc32/fpu/setjmp.S
new file mode 100644
index 0000000000..b6c63663f4
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/fpu/setjmp.S
@@ -0,0 +1,73 @@
+/* setjmp 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 <sysdep.h>
+#define _ASM
+#define _SETJMP_H
+#include <bits/setjmp.h>
+#include <bp-sym.h>
+#include <bp-asm.h>
+
+ENTRY (BP_SYM (__sigsetjmp))
+ CHECK_BOUNDS_BOTH_WIDE_LIT (r3, r8, r9, JB_SIZE)
+
+ stw r1,(JB_GPR1*4)(3)
+ mflr r0
+ stw r2,(JB_GPR2*4)(3)
+ stw r14,((JB_GPRS+0)*4)(3)
+ stfd fp14,((JB_FPRS+0*2)*4)(3)
+ stw r0,(JB_LR*4)(3)
+ stw r15,((JB_GPRS+1)*4)(3)
+ stfd fp15,((JB_FPRS+1*2)*4)(3)
+ mfcr r0
+ stw r16,((JB_GPRS+2)*4)(3)
+ stfd fp16,((JB_FPRS+2*2)*4)(3)
+ stw r0,(JB_CR*4)(3)
+ stw r17,((JB_GPRS+3)*4)(3)
+ stfd fp17,((JB_FPRS+3*2)*4)(3)
+ stw r18,((JB_GPRS+4)*4)(3)
+ stfd fp18,((JB_FPRS+4*2)*4)(3)
+ stw r19,((JB_GPRS+5)*4)(3)
+ stfd fp19,((JB_FPRS+5*2)*4)(3)
+ stw r20,((JB_GPRS+6)*4)(3)
+ stfd fp20,((JB_FPRS+6*2)*4)(3)
+ stw r21,((JB_GPRS+7)*4)(3)
+ stfd fp21,((JB_FPRS+7*2)*4)(3)
+ stw r22,((JB_GPRS+8)*4)(3)
+ stfd fp22,((JB_FPRS+8*2)*4)(3)
+ stw r23,((JB_GPRS+9)*4)(3)
+ stfd fp23,((JB_FPRS+9*2)*4)(3)
+ stw r24,((JB_GPRS+10)*4)(3)
+ stfd fp24,((JB_FPRS+10*2)*4)(3)
+ stw r25,((JB_GPRS+11)*4)(3)
+ stfd fp25,((JB_FPRS+11*2)*4)(3)
+ stw r26,((JB_GPRS+12)*4)(3)
+ stfd fp26,((JB_FPRS+12*2)*4)(3)
+ stw r27,((JB_GPRS+13)*4)(3)
+ stfd fp27,((JB_FPRS+13*2)*4)(3)
+ stw r28,((JB_GPRS+14)*4)(3)
+ stfd fp28,((JB_FPRS+14*2)*4)(3)
+ stw r29,((JB_GPRS+15)*4)(3)
+ stfd fp29,((JB_FPRS+15*2)*4)(3)
+ stw r30,((JB_GPRS+16)*4)(3)
+ stfd fp30,((JB_FPRS+16*2)*4)(3)
+ stw r31,((JB_GPRS+17)*4)(3)
+ stfd fp31,((JB_FPRS+17*2)*4)(3)
+ b JUMPTARGET (BP_SYM (__sigjmp_save))
+END (BP_SYM (__sigsetjmp))
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-05 10:27:35 +0000