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`et` means `expandtab`. ```sh rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\) et\(.*\) :vi/vi: \1 xoet\2:vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)noet\(.*\):vi/vi: \1et\2 :vi/' rg 'vi: .* :vi' -l -0 | \ xargs -0 sed -i '' 's/vi: \(.*\)xoet\(.*\):vi/vi: \1noet\2:vi/' ```
391 lines
19 KiB
C
391 lines
19 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2021 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/log/check.h"
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#include "third_party/mbedtls/bignum.h"
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#include "third_party/mbedtls/ecp_internal.h"
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#include "third_party/mbedtls/math.h"
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#define Q(i) p[i >> 1]
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/**
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* Fastest quasi-reduction modulo ℘384.
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*
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* p = 2³⁸⁴ – 2¹²⁸ – 2⁶ + 2³² – 1
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* B = T + 2×S₁ + S₂ + S₃ + S₄ + S₅ + S₆ – D₁ – D₂ – D₃ mod p
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* T = (A₁₁‖A₁₀‖A₉ ‖A₈ ‖A₇ ‖A₆ ‖A₅ ‖A₄ ‖A₃ ‖A₂ ‖A₁ ‖A₀ )
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* S₁ = (0 ‖0 ‖0 ‖0 ‖0 ‖A₂₃‖A₂₂‖A₂₁‖0 ‖0 ‖0 ‖0 )
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* S₂ = (A₂₃‖A₂₂‖A₂₁‖A₂₀‖A₁₉‖A₁₈‖A₁₇‖A₁₆‖A₁₅‖A₁₄‖A₁₃‖A₁₂)
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* S₃ = (A₂₀‖A₁₉‖A₁₈‖A₁₇‖A₁₆‖A₁₅‖A₁₄‖A₁₃‖A₁₂‖A₂₃‖A₂₂‖A₂₁)
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* S₄ = (A₁₉‖A₁₈‖A₁₇‖A₁₆‖A₁₅‖A₁₄‖A₁₃‖A₁₂‖A₂₀‖0 ‖A₂₃‖0 )
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* S₅ = (0 ‖0 ‖0 ‖0 ‖A₂₃‖A₂₂‖A₂₁‖A₂₀‖0 ‖0 ‖0 ‖0 )
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* S₆ = (0 ‖0 ‖0 ‖0 ‖0 ‖0 ‖A₂₃‖A₂₂‖A₂₁‖0 ‖0 ‖A₂₀)
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* D₁ = (A₂₂‖A₂₁‖A₂₀‖A₁₉‖A₁₈‖A₁₇‖A₁₆‖A₁₅‖A₁₄‖A₁₃‖A₁₂‖A₂₃)
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* D₂ = (0 ‖0 ‖0 ‖0 ‖0 ‖0 ‖0 ‖A₂₃‖A₂₂‖A₂₁‖A₂₀‖0 )
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* D₃ = (0 ‖0 ‖0 ‖0 ‖0 ‖0 ‖0 ‖A₂₃‖A₂₃‖0 ‖0 ‖0 )
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*
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* @see FIPS 186-3 §D.2.4
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*/
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void secp384r1(uint64_t p[12]) {
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uint64_t A, B, C, D, E, F, G, a, b, o;
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A = Q(0);
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B = Q(2);
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C = Q(4);
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D = Q(6);
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E = Q(8);
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F = Q(10);
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G = 0;
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#if !defined(__x86_64__) || defined(__STRICT_ANSI__)
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a = Q(22) << 32 | Q(21) >> 32;
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b = Q(23) >> 32;
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ADC(C, C, a << 1, 0, o);
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ADC(D, D, b << 1 | a >> 63, o, o);
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ADC(E, E, b >> 63, o, o);
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ADC(F, F, 0, o, o);
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G += o;
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ADC(A, A, Q(12), 0, o);
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ADC(B, B, Q(14), o, o);
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ADC(C, C, Q(16), o, o);
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ADC(D, D, Q(18), o, o);
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ADC(E, E, Q(20), o, o);
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ADC(F, F, Q(22), o, o);
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G += o;
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ADC(A, A, Q(22) << 32 | Q(21) >> 32, 0, o);
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ADC(B, B, Q(12) << 32 | Q(23) >> 32, o, o);
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ADC(C, C, Q(14) << 32 | Q(13) >> 32, o, o);
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ADC(D, D, Q(16) << 32 | Q(15) >> 32, o, o);
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ADC(E, E, Q(18) << 32 | Q(17) >> 32, o, o);
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ADC(F, F, Q(20) << 32 | Q(19) >> 32, o, o);
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G += o;
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ADC(A, A, Q(23) >> 32 << 32, 0, o);
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ADC(B, B, Q(20) << 32, o, o);
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ADC(C, C, Q(12), o, o);
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ADC(D, D, Q(14), o, o);
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ADC(E, E, Q(16), o, o);
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ADC(F, F, Q(18), o, o);
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G += o;
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ADC(C, C, Q(20), 0, o);
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ADC(D, D, Q(22), o, o);
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ADC(E, E, 0, o, o);
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ADC(F, F, 0, o, o);
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G += o;
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ADC(A, A, Q(20) & 0xffffffff, 0, o);
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ADC(B, B, Q(21) >> 32 << 32, o, o);
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ADC(C, C, Q(22), o, o);
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ADC(D, D, 0, o, o);
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ADC(E, E, 0, o, o);
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ADC(F, F, 0, o, o);
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G += o;
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SBB(A, A, Q(12) << 32 | Q(23) >> 32, 0, o);
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SBB(B, B, Q(14) << 32 | Q(13) >> 32, o, o);
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SBB(C, C, Q(16) << 32 | Q(15) >> 32, o, o);
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SBB(D, D, Q(18) << 32 | Q(17) >> 32, o, o);
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SBB(E, E, Q(20) << 32 | Q(19) >> 32, o, o);
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SBB(F, F, Q(22) << 32 | Q(21) >> 32, o, o);
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G -= o;
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SBB(A, A, Q(20) << 32, 0, o);
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SBB(B, B, Q(22) << 32 | Q(21) >> 32, o, o);
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SBB(C, C, Q(23) >> 32, o, o);
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SBB(D, D, 0, o, o);
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SBB(E, E, 0, o, o);
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SBB(F, F, 0, o, o);
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G -= o;
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SBB(B, B, Q(23) >> 32 << 32, 0, o);
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SBB(C, C, Q(23) >> 32, o, o);
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SBB(D, D, 0, o, o);
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SBB(E, E, 0, o, o);
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SBB(F, F, 0, o, o);
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G -= o;
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#else
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(void)o;
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asm volatile(/* S₁ = (0 ‖0 ‖0 ‖0 ‖0 ‖A₂₃‖A₂₂‖A₂₁‖0 ‖0 ‖0 ‖0 ) */
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"mov\t21*4(%9),%7\n\t"
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"mov\t23*4(%9),%k8\n\t"
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"mov\t%7,%%r12\n\t"
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"shr\t$63,%%r12\n\t"
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"shl\t%7\n\t"
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"shl\t%8\n\t"
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"or\t%%r12,%8\n\t"
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"mov\t13*4(%9),%%r12\n\t"
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"add\t%7,%2\n\t"
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"mov\t23*4(%9),%k7\n\t"
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"adc\t%8,%3\n\t"
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"mov\t15*4(%9),%%r13\n\t"
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"adc\t$0,%4\n\t"
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"mov\t12*4(%9),%k8\n\t"
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"adc\t$0,%5\n\t"
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"mov\t17*4(%9),%%r14\n\t"
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"adc\t$0,%6\n\t"
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"mov\t19*4(%9),%%r15\n\t"
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/* D₁ = (A₂₂‖A₂₁‖A₂₀‖A₁₉‖A₁₈‖A₁₇‖A₁₆‖A₁₅‖A₁₄‖A₁₃‖A₁₂‖A₂₃) */
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"shl\t$32,%8\n\t"
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"or\t%8,%7\n\t"
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"mov\t23*4(%9),%k8\n\t"
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"sub\t%7,%0\n\t"
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"mov\t21*4(%9),%7\n\t"
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"sbb\t%%r12,%1\n\t"
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"sbb\t%%r13,%2\n\t"
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"sbb\t%%r14,%3\n\t"
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"sbb\t%%r15,%4\n\t"
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"sbb\t%7,%5\n\t"
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"mov\t12*4(%9),%k7\n\t"
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"sbb\t$0,%6\n\t"
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/* S₃ = (A₂₀‖A₁₉‖A₁₈‖A₁₇‖A₁₆‖A₁₅‖A₁₄‖A₁₃‖A₁₂‖A₂₃‖A₂₂‖A₂₁) */
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"shl\t$32,%7\n\t"
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"or\t%7,%8\n\t"
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"add\t21*4(%9),%0\n\t"
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"mov\t23*4(%9),%k7\n\t"
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"adc\t%8,%1\n\t"
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"mov\t20*4(%9),%k8\n\t"
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"adc\t%%r12,%2\n\t"
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"mov\t12*4(%9),%%r12\n\t"
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"adc\t%%r13,%3\n\t"
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"mov\t14*4(%9),%%r13\n\t"
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"adc\t%%r14,%4\n\t"
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"mov\t16*4(%9),%%r14\n\t"
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"adc\t%%r15,%5\n\t"
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"mov\t18*4(%9),%%r15\n\t"
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"adc\t$0,%6\n\t"
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/* S₄ = (A₁₉‖A₁₈‖A₁₇‖A₁₆‖A₁₅‖A₁₄‖A₁₃‖A₁₂‖A₂₀‖0 ‖A₂₃‖0 ) */
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"shl\t$32,%7\n\t"
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"shl\t$32,%8\n\t"
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"add\t%7,%0\n\t"
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"adc\t%8,%1\n\t"
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"adc\t%%r12,%2\n\t"
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"adc\t%%r13,%3\n\t"
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"adc\t%%r14,%4\n\t"
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"adc\t%%r15,%5\n\t"
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"adc\t$0,%6\n\t"
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/* S₂ = (A₂₃‖A₂₂‖A₂₁‖A₂₀‖A₁₉‖A₁₈‖A₁₇‖A₁₆‖A₁₅‖A₁₄‖A₁₃‖A₁₂) */
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"add\t%%r12,%0\n\t"
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"mov\t20*4(%9),%%r12\n\t"
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"adc\t%%r13,%1\n\t"
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"mov\t22*4(%9),%%r13\n\t"
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"adc\t%%r14,%2\n\t"
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"adc\t%%r15,%3\n\t"
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"adc\t%%r12,%4\n\t"
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"adc\t%%r13,%5\n\t"
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"adc\t$0,%6\n\t"
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/* S₅ = (0 ‖0 ‖0 ‖0 ‖A₂₃‖A₂₂‖A₂₁‖A₂₀‖0 ‖0 ‖0 ‖0 ) */
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"add\t%%r12,%2\n\t"
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"adc\t%%r13,%3\n\t"
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"adc\t$0,%4\n\t"
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"adc\t$0,%5\n\t"
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"adc\t$0,%6\n\t"
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/* S₆ = (0 ‖0 ‖0 ‖0 ‖0 ‖0 ‖A₂₃‖A₂₂‖A₂₁‖0 ‖0 ‖A₂₀) */
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"mov\t%%r12d,%k7\n\t"
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"mov\t%%r12,%8\n\t"
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"shr\t$32,%8\n\t"
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"shl\t$32,%8\n\t"
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"add\t%7,%0\n\t"
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"adc\t%8,%1\n\t"
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"adc\t%%r13,%2\n\t"
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"adc\t$0,%3\n\t"
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"adc\t$0,%4\n\t"
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"adc\t$0,%5\n\t"
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"adc\t$0,%6\n\t"
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/* D₂ = (0 ‖0 ‖0 ‖0 ‖0 ‖0 ‖0 ‖A₂₃‖A₂₂‖A₂₁‖A₂₀‖0 ) */
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"mov\t%%r12d,%k7\n\t"
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"mov\t21*4(%9),%%r12\n\t"
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"mov\t%%r13,%8\n\t"
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"shr\t$32,%8\n\t"
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"shl\t$32,%7\n\t"
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"sub\t%7,%0\n\t"
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"sbb\t%%r12,%1\n\t"
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"sbb\t%8,%2\n\t"
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"sbb\t$0,%3\n\t"
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"sbb\t$0,%4\n\t"
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"sbb\t$0,%5\n\t"
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"sbb\t$0,%6\n\t"
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/* D₃ = (0 ‖0 ‖0 ‖0 ‖0 ‖0 ‖0 ‖A₂₃‖A₂₃‖0 ‖0 ‖0 ) */
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"mov\t%%r13,%7\n\t"
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"shr\t$32,%7\n\t"
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"mov\t%k7,%k8\n\t"
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"shl\t$32,%7\n\t"
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"sub\t%7,%1\n\t"
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"sbb\t%8,%2\n\t"
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"sbb\t$0,%3\n\t"
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"sbb\t$0,%4\n\t"
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"sbb\t$0,%5\n\t"
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"sbb\t$0,%6"
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: "+r"(A), "+r"(B), "+r"(C), "+r"(D), "+r"(E), "+r"(F), "+q"(G),
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"=&r"(a), "=&r"(b)
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: "r"(p)
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: "memory", "r12", "r13", "r14", "r15");
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#endif
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p[0] = A;
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p[1] = B;
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p[2] = C;
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p[3] = D;
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p[4] = E;
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p[5] = F;
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p[6] = G;
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G = __conceal("r", 0L);
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p[7] = G;
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p[8] = G;
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p[9] = G;
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p[10] = G;
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p[11] = G;
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}
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int ecp_mod_p384(mbedtls_mpi *N) {
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int r;
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char o;
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if (N->n < 12 && (r = mbedtls_mpi_grow(N, 12))) return r;
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secp384r1(N->p);
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if ((int64_t)N->p[6] < 0) {
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N->s = -1;
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SBB(N->p[0], 0, N->p[0], 0, o);
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SBB(N->p[1], 0, N->p[1], o, o);
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SBB(N->p[2], 0, N->p[2], o, o);
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SBB(N->p[3], 0, N->p[3], o, o);
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SBB(N->p[4], 0, N->p[4], o, o);
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SBB(N->p[5], 0, N->p[5], o, o);
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N->p[6] = 0 - (N->p[6] + o);
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} else {
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N->s = 1;
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}
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return 0;
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}
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/*
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Instructions: 115
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Total Cycles: 46
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Total uOps: 116
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uOps Per Cycle: 2.52
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IPC: 2.50
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Block RThroughput: 31.0
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SIMULATION 0123456789 0123456789
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Index 0123456789 0123456789 012345
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[0,0] DR . . . . . . . . . xorl %r10d, %r10d
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[0,1] DeeeeeER . . . . . . . . movq (%rdi), %r9
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[0,2] DeeeeeER . . . . . . . . movq 8(%rdi), %r8
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[0,3] D=eeeeeER . . . . . . . . movq 16(%rdi), %rsi
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[0,4] D=eeeeeER . . . . . . . . movq 24(%rdi), %rcx
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[0,5] D==eeeeeER. . . . . . . . movq 32(%rdi), %rdx
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[0,6] .D==eeeeeER . . . . . . . movq 40(%rdi), %rax
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[0,7] .D=eeeeeE-R . . . . . . . movq 84(%rdi), %r11
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[0,8] .D==eeeeeER . . . . . . . movl 92(%rdi), %ebx
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[0,9] .D======eER . . . . . . . movq %r11, %r12
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[0,10] .D=======eER . . . . . . . shrq $63, %r12
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[0,11] .D======eE-R . . . . . . . shlq %r11
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[0,12] . D======eER . . . . . . . shlq %rbx
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[0,13] . D=======eER . . . . . . . orq %r12, %rbx
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[0,14] . D==eeeeeE-R . . . . . . . movq 52(%rdi), %r12
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[0,15] . D======eE-R . . . . . . . addq %r11, %rsi
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[0,16] . D==eeeeeE-R . . . . . . . movl 92(%rdi), %r11d
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[0,17] . D========eER . . . . . . . adcq %rbx, %rcx
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[0,18] . D==eeeeeE-R . . . . . . . movq 60(%rdi), %r13
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[0,19] . D========eER. . . . . . . adcq $0, %rdx
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[0,20] . D==eeeeeE--R. . . . . . . movl 48(%rdi), %ebx
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[0,21] . D=========eER . . . . . . adcq $0, %rax
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[0,22] . D===eeeeeE--R . . . . . . movq 68(%rdi), %r14
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[0,23] . D==========eER . . . . . . adcq $0, %r10
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[0,24] . D==eeeeeE---R . . . . . . movq 76(%rdi), %r15
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[0,25] . D======eE---R . . . . . . shlq $32, %rbx
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[0,26] . D=======eE--R . . . . . . orq %rbx, %r11
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[0,27] . D===eeeeeE--R . . . . . . movl 92(%rdi), %ebx
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||
[0,28] . D========eE-R . . . . . . subq %r11, %r9
|
||
[0,29] . D===eeeeeE--R . . . . . . movq 84(%rdi), %r11
|
||
[0,30] . D========eER . . . . . . sbbq %r12, %r8
|
||
[0,31] . D=========eER . . . . . . sbbq %r13, %rsi
|
||
[0,32] . D==========eER . . . . . . sbbq %r14, %rcx
|
||
[0,33] . D===========eER. . . . . . sbbq %r15, %rdx
|
||
[0,34] . D============eER . . . . . sbbq %r11, %rax
|
||
[0,35] . D===eeeeeE-----R . . . . . movl 48(%rdi), %r11d
|
||
[0,36] . .D============eER . . . . . sbbq $0, %r10
|
||
[0,37] . .D========eE----R . . . . . shlq $32, %r11
|
||
[0,38] . .D=========eE---R . . . . . orq %r11, %rbx
|
||
[0,39] . .D==eeeeeE------R . . . . . movl 92(%rdi), %r11d
|
||
[0,40] . .D======eeeeeeE-R . . . . . addq 84(%rdi), %r9
|
||
[0,41] . . D===========eER . . . . . adcq %rbx, %r8
|
||
[0,42] . . D==eeeeeE-----R . . . . . movl 80(%rdi), %ebx
|
||
[0,43] . . D============eER . . . . . adcq %r12, %rsi
|
||
[0,44] . . D==eeeeeE------R . . . . . movq 48(%rdi), %r12
|
||
[0,45] . . D=============eER . . . . . adcq %r13, %rcx
|
||
[0,46] . . D===eeeeeE------R . . . . . movq 56(%rdi), %r13
|
||
[0,47] . . D=============eER. . . . . adcq %r14, %rdx
|
||
[0,48] . . D==eeeeeE-------R. . . . . movq 64(%rdi), %r14
|
||
[0,49] . . D==============eER . . . . adcq %r15, %rax
|
||
[0,50] . . D===eeeeeE-------R . . . . movq 72(%rdi), %r15
|
||
[0,51] . . D===============eER . . . . adcq $0, %r10
|
||
[0,52] . . D=======eE--------R . . . . shlq $32, %r11
|
||
[0,53] . . D=======eE-------R . . . . shlq $32, %rbx
|
||
[0,54] . . D=========eE-----R . . . . addq %r11, %r9
|
||
[0,55] . . D==========eE----R . . . . adcq %rbx, %r8
|
||
[0,56] . . D===========eE---R . . . . adcq %r12, %rsi
|
||
[0,57] . . D============eE--R . . . . adcq %r13, %rcx
|
||
[0,58] . . D=============eE-R . . . . adcq %r14, %rdx
|
||
[0,59] . . D=============eER . . . . adcq %r15, %rax
|
||
[0,60] . . D==============eER . . . . adcq $0, %r10
|
||
[0,61] . . D=========eE-----R . . . . addq %r12, %r9
|
||
[0,62] . . D=eeeeeE---------R . . . . movq 80(%rdi), %r12
|
||
[0,63] . . D==============eER . . . . adcq %r13, %r8
|
||
[0,64] . . D==eeeeeE--------R . . . . movq 88(%rdi), %r13
|
||
[0,65] . . .D==============eER . . . . adcq %r14, %rsi
|
||
[0,66] . . .D===============eER. . . . adcq %r15, %rcx
|
||
[0,67] . . .D================eER . . . adcq %r12, %rdx
|
||
[0,68] . . .D=================eER . . . adcq %r13, %rax
|
||
[0,69] . . .D==================eER . . . adcq $0, %r10
|
||
[0,70] . . .D===============eE---R . . . addq %r12, %rsi
|
||
[0,71] . . . D===============eE--R . . . adcq %r13, %rcx
|
||
[0,72] . . . D================eE-R . . . adcq $0, %rdx
|
||
[0,73] . . . D=================eER . . . adcq $0, %rax
|
||
[0,74] . . . D==================eER . . . adcq $0, %r10
|
||
[0,75] . . . D====eE--------------R . . . movl %r12d, %r11d
|
||
[0,76] . . . D====eE--------------R . . . movq %r12, %rbx
|
||
[0,77] . . . D====eE-------------R . . . shrq $32, %rbx
|
||
[0,78] . . . D============eE-----R . . . shlq $32, %rbx
|
||
[0,79] . . . D=======eE----------R . . . addq %r11, %r9
|
||
[0,80] . . . D=============eE----R . . . adcq %rbx, %r8
|
||
[0,81] . . . D=================eER . . . adcq %r13, %rsi
|
||
[0,82] . . . D==================eER. . . adcq $0, %rcx
|
||
[0,83] . . . D==================eER . . adcq $0, %rdx
|
||
[0,84] . . . D===================eER . . adcq $0, %rax
|
||
[0,85] . . . D====================eER . . adcq $0, %r10
|
||
[0,86] . . . D===eE-----------------R . . movl %r12d, %r11d
|
||
[0,87] . . . DeeeeeE----------------R . . movq 84(%rdi), %r12
|
||
[0,88] . . . D===eE-----------------R . . movq %r13, %rbx
|
||
[0,89] . . . D================eE---R . . shrq $32, %rbx
|
||
[0,90] . . . D=================eE--R . . shlq $32, %r11
|
||
[0,91] . . . D==================eE-R . . subq %r11, %r9
|
||
[0,92] . . . D===================eER . . sbbq %r12, %r8
|
||
[0,93] . . . D====================eER . . sbbq %rbx, %rsi
|
||
[0,94] . . . D=====================eER. . sbbq $0, %rcx
|
||
[0,95] . . . .D=====================eER . sbbq $0, %rdx
|
||
[0,96] . . . .D======================eER . sbbq $0, %rax
|
||
[0,97] . . . .D=======================eER . sbbq $0, %r10
|
||
[0,98] . . . .D==eE---------------------R . movq %r13, %r11
|
||
[0,99] . . . .D=================eE------R . shrq $32, %r11
|
||
[0,100] . . . .D==================eE-----R . movl %r11d, %ebx
|
||
[0,101] . . . . D==================eE----R . shlq $32, %r11
|
||
[0,102] . . . . D===================eE---R . subq %r11, %r8
|
||
[0,103] . . . . D====================eE--R . sbbq %rbx, %rsi
|
||
[0,104] . . . . D=====================eE-R . sbbq $0, %rcx
|
||
[0,105] . . . . D======================eER . sbbq $0, %rdx
|
||
[0,106] . . . . D=======================eER . sbbq $0, %rax
|
||
[0,107] . . . . D=======================eER. sbbq $0, %r10
|
||
[0,108] . . . . D================eE-------R. movq %r9, (%rdi)
|
||
[0,109] . . . . D===================eE----R. movq %r8, 8(%rdi)
|
||
[0,110] . . . . D====================eE---R. movq %rsi, 16(%rdi)
|
||
[0,111] . . . . D=====================eE--R. movq %rcx, 24(%rdi)
|
||
[0,112] . . . . D======================eE-R. movq %rdx, 32(%rdi)
|
||
[0,113] . . . . D======================eER. movq %rax, 40(%rdi)
|
||
[0,114] . . . . D=======================eER movq %r10, 48(%rdi)
|
||
*/
|