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/* This test program is part of GDB, the GNU debugger.
Copyright 2024 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
int
main (void)
{
char source[40] __attribute__ ((aligned (8)))
= "This is a relatively long string...";
char a[40] __attribute__ ((aligned (8)))
= "String to be overwritten with zeroes";
char b[40] __attribute__ ((aligned (8)))
= "Another string to be memcopied...";
char c[40] __attribute__ ((aligned (8)))
= "Another string to be memmoved...";
char *p, *q;
long size, zero;
/* Break here. */
p = a;
size = sizeof (a);
zero = 0;
/* memset implemented in MOPS instructions. */
__asm__ volatile ("setp [%0]!, %1!, %2\n\t"
"setm [%0]!, %1!, %2\n\t"
"sete [%0]!, %1!, %2\n\t"
: "+&r"(p), "+&r"(size)
: "r"(zero)
: "memory");
p = b;
q = source;
size = sizeof (b);
/* memmove implemented in MOPS instructions. */
__asm__ volatile ("cpyp [%0]!, [%1]!, %2!\n\t"
"cpym [%0]!, [%1]!, %2!\n\t"
"cpye [%0]!, [%1]!, %2!\n\t"
: "+&r" (p), "+&r" (q), "+&r" (size)
:
: "memory");
p = c;
q = source;
size = sizeof (c);
/* memcpy implemented in MOPS instructions. */
__asm__ volatile ("cpyfp [%0]!, [%1]!, %2!\n\t"
"cpyfm [%0]!, [%1]!, %2!\n\t"
"cpyfe [%0]!, [%1]!, %2!\n\t"
: "+&r" (p), "+&r" (q), "+&r" (size)
:
: "memory");
return 0;
}
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