51 lines
2.6 KiB
C
51 lines
2.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ 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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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "tool/build/emubin/metalsha256.h"
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#define DISINGENUOUS /* 100 million NOPs is still 100 MIPS lool */
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static void Print(uint8_t c) {
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asm volatile("out\t%0,$0xE9" : /* no outputs */ : "a"(c) : "memory");
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}
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int main(int argc, char *argv[]) {
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int i;
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#ifdef DISINGENUOUS
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for (i = 0; i < 100 * 1000 * 1000 / 3; ++i) asm("nop");
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#else
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size_t size;
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struct MetalSha256Ctx ctx;
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unsigned char hash[32], *data;
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data = (void *)0x7fffffff0000;
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size = 0x10000;
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MetalSha256Init(&ctx);
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for (i = 0; i < 10; ++i) {
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MetalSha256Update(&ctx, data, size);
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}
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MetalSha256Final(&ctx, hash);
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for (i = 0; i < sizeof(hash); ++i) {
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Print("0123456789abcdef"[(hash[i] >> 4) & 15]);
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Print("0123456789abcdef"[(hash[i] >> 0) & 15]);
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}
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Print('\n');
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#endif
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return 0;
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}
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