101 lines
2.3 KiB
ArmAsm
101 lines
2.3 KiB
ArmAsm
/* SHA256 using sparc crypto opcodes.
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Copyright (C) 2012-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#define SHA256 \
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.word 0x81b02840;
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.text
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.align 32
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ENTRY(__sha256_process_block_crop)
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/* %o0=buffer, %o1=len, %o2=CTX */
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ldx [%o2 + 0x20], %g1
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add %g1, %o1, %g1
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stx %g1, [%o2 + 0x20]
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ld [%o2 + 0x00], %f0
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ld [%o2 + 0x04], %f1
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ld [%o2 + 0x08], %f2
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ld [%o2 + 0x0c], %f3
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ld [%o2 + 0x10], %f4
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ld [%o2 + 0x14], %f5
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andcc %o1, 0x7, %g0
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ld [%o2 + 0x18], %f6
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bne,pn %xcc, 10f
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ld [%o2 + 0x1c], %f7
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1:
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ldd [%o0 + 0x00], %f8
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ldd [%o0 + 0x08], %f10
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ldd [%o0 + 0x10], %f12
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ldd [%o0 + 0x18], %f14
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ldd [%o0 + 0x20], %f16
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ldd [%o0 + 0x28], %f18
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ldd [%o0 + 0x30], %f20
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ldd [%o0 + 0x38], %f22
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SHA256
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subcc %o1, 0x40, %o1
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bne,pt %xcc, 1b
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add %o0, 0x40, %o0
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5:
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st %f0, [%o2 + 0x00]
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st %f1, [%o2 + 0x04]
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st %f2, [%o2 + 0x08]
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st %f3, [%o2 + 0x0c]
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st %f4, [%o2 + 0x10]
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st %f5, [%o2 + 0x14]
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st %f6, [%o2 + 0x18]
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retl
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st %f7, [%o2 + 0x1c]
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10:
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alignaddr %o0, %g0, %o0
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ldd [%o0 + 0x00], %f10
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1:
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ldd [%o0 + 0x08], %f12
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ldd [%o0 + 0x10], %f14
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ldd [%o0 + 0x18], %f16
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ldd [%o0 + 0x20], %f18
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ldd [%o0 + 0x28], %f20
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ldd [%o0 + 0x30], %f22
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ldd [%o0 + 0x38], %f24
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ldd [%o0 + 0x40], %f26
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faligndata %f10, %f12, %f8
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faligndata %f12, %f14, %f10
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faligndata %f14, %f16, %f12
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faligndata %f16, %f18, %f14
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faligndata %f18, %f20, %f16
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faligndata %f20, %f22, %f18
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faligndata %f22, %f24, %f20
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faligndata %f24, %f26, %f22
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SHA256
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subcc %o1, 0x40, %o1
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fsrc2 %f26, %f10
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bne,pt %xcc, 1b
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add %o0, 0x40, %o0
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ba,a,pt %xcc, 5b
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END(__sha256_process_block_crop)
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