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/* SHA256 using sparc crypto opcodes.
Copyright (C) 2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David S. Miller (davem@davemloft.net)
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, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#define SHA256 \
.word 0x81b02840;
.text
.align 32
ENTRY(__sha256_process_block_crop)
/* %o0=buffer, %o1=len, %o2=CTX */
ldx [%o2 + 0x20], %g1
add %g1, %o1, %g1
stx %g1, [%o2 + 0x20]
ld [%o2 + 0x00], %f0
ld [%o2 + 0x04], %f1
ld [%o2 + 0x08], %f2
ld [%o2 + 0x0c], %f3
ld [%o2 + 0x10], %f4
ld [%o2 + 0x14], %f5
andcc %o1, 0x7, %g0
ld [%o2 + 0x18], %f6
bne,pn %xcc, 10f
ld [%o2 + 0x1c], %f7
1:
ldd [%o0 + 0x00], %f8
ldd [%o0 + 0x08], %f10
ldd [%o0 + 0x10], %f12
ldd [%o0 + 0x18], %f14
ldd [%o0 + 0x20], %f16
ldd [%o0 + 0x28], %f18
ldd [%o0 + 0x30], %f20
ldd [%o0 + 0x38], %f22
SHA256
subcc %o1, 0x40, %o1
bne,pt %xcc, 1b
add %o0, 0x40, %o0
5:
st %f0, [%o2 + 0x00]
st %f1, [%o2 + 0x04]
st %f2, [%o2 + 0x08]
st %f3, [%o2 + 0x0c]
st %f4, [%o2 + 0x10]
st %f5, [%o2 + 0x14]
st %f6, [%o2 + 0x18]
retl
st %f7, [%o2 + 0x1c]
10:
alignaddr %o0, %g0, %o0
ldd [%o0 + 0x00], %f10
1:
ldd [%o0 + 0x08], %f12
ldd [%o0 + 0x10], %f14
ldd [%o0 + 0x18], %f16
ldd [%o0 + 0x20], %f18
ldd [%o0 + 0x28], %f20
ldd [%o0 + 0x30], %f22
ldd [%o0 + 0x38], %f24
ldd [%o0 + 0x40], %f26
faligndata %f10, %f12, %f8
faligndata %f12, %f14, %f10
faligndata %f14, %f16, %f12
faligndata %f16, %f18, %f14
faligndata %f18, %f20, %f16
faligndata %f20, %f22, %f18
faligndata %f22, %f24, %f20
faligndata %f24, %f26, %f22
SHA256
subcc %o1, 0x40, %o1
fsrc2 %f26, %f10
bne,pt %xcc, 1b
add %o0, 0x40, %o0
ba,a,pt %xcc, 5b
END(__sha256_process_block_crop)
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