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125 lines
3.6 KiB
C
125 lines
3.6 KiB
C
/* Test program for byte registers.
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Copyright 2010-2017 Free Software Foundation, Inc.
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This file is part of GDB.
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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; either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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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, see <http://www.gnu.org/licenses/>. */
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#include <stdio.h>
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int data[] = {
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0x14131211,
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0x24232221,
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0x34333231,
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0x44434241,
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0x54535251,
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0x64636261,
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0x74737271,
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0x84838281,
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0x94939291,
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0xa4a3a2a1,
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0xb4b3b2b1,
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0xc4c3c2c1,
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0xd4d3d2d1,
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0xe4e3e2e1,
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};
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int
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main (int argc, char **argv)
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{
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register int eax asm ("eax");
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register int ebx asm ("ebx");
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register int ecx asm ("ecx");
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register int edx asm ("edx");
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register int esi asm ("esi");
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register int edi asm ("edi");
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register long r8 asm ("r8");
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register long r9 asm ("r9");
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register long r10 asm ("r10");
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register long r11 asm ("r11");
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register long r12 asm ("r12");
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register long r13 asm ("r13");
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register long r14 asm ("r14");
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register long r15 asm ("r15");
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asm ("mov 0(%0), %%eax\n\t"
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"mov 4(%0), %%ebx\n\t"
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"mov 8(%0), %%ecx\n\t"
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"mov 12(%0), %%edx\n\t"
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"mov 16(%0), %%esi\n\t"
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"mov 20(%0), %%edi\n\t"
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: /* no output operands */
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: "r" (data)
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: "eax", "ebx", "ecx", "edx", "esi", "edi");
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asm ("nop"); /* first breakpoint here */
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asm ("mov 24(%0), %%r8d\n\t"
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"mov 28(%0), %%r9d\n\t"
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"mov 32(%0), %%r10d\n\t"
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"mov 36(%0), %%r11\n\t"
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"mov 40(%0), %%r12d\n\t"
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"mov 44(%0), %%r13d\n\t"
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"mov 48(%0), %%r14d\n\t"
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"mov 52(%0), %%r15d\n\t"
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: /* no output operands */
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: "r" (data)
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: "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15");
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asm ("nop" /* second breakpoint here */
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/* amd64-{byte,word,dword}.exp write eax-edi here.
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Tell gcc/clang they're live. */
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: "=r" (eax), "=r" (ebx), "=r" (ecx),
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"=r" (edx), "=r" (esi), "=r" (edi)
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: /* no inputs */);
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asm ("mov %%eax, 0(%0)\n\t"
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"mov %%ebx, 4(%0)\n\t"
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"mov %%ecx, 8(%0)\n\t"
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"mov %%edx, 12(%0)\n\t"
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"mov %%esi, 16(%0)\n\t"
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"mov %%edi, 20(%0)\n\t"
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: /* no output operands */
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: "r" (data),
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/* Mark these as inputs so that gcc/clang won't try to use them as
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a temp to build %0. */
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"r" (eax), "r" (ebx), "r" (ecx),
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"r" (edx), "r" (esi), "r" (edi));
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asm ("nop" /* third breakpoint here */
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/* amd64-{byte,word,dword}.exp write r8-r15 here.
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Tell gcc/clang they're live. */
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: "=r" (r8), "=r" (r9), "=r" (r10), "=r" (r11),
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"=r" (r12), "=r" (r13), "=r" (r14), "=r" (r15)
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: /* no inputs */);
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asm ("mov %%r8d, 24(%0)\n\t"
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"mov %%r9d, 28(%0)\n\t"
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"mov %%r10d, 32(%0)\n\t"
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"mov %%r11d, 36(%0)\n\t"
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"mov %%r12d, 40(%0)\n\t"
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"mov %%r13d, 44(%0)\n\t"
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"mov %%r14d, 48(%0)\n\t"
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"mov %%r15d, 52(%0)\n\t"
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: /* no output operands */
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: "r" (data),
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/* Mark these as inputs so that gcc/clang won't try to use them as
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a temp to build %0. */
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"r" (r8), "r" (r9), "r" (r10), "r" (r11),
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"r" (r12), "r" (r13), "r" (r14), "r" (r15));
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puts ("Bye!"); /* forth breakpoint here */
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return 0;
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}
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