f5c2ae7134
Add a small test to prevent regressions. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Message-Id: <20230704081506.276055-9-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
24 lines
512 B
C
24 lines
512 B
C
/*
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* Test the EPSW instruction.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include <assert.h>
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#include <stdlib.h>
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int main(void)
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{
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unsigned long r1 = 0x1234567887654321UL, r2 = 0x8765432112345678UL;
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asm("cr %[r1],%[r2]\n" /* cc = 1 */
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"epsw %[r1],%[r2]"
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: [r1] "+r" (r1), [r2] "+r" (r2) : : "cc");
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/* Do not check the R and RI bits. */
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r1 &= ~0x40000008UL;
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assert(r1 == 0x1234567807051001UL);
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assert(r2 == 0x8765432180000000UL);
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return EXIT_SUCCESS;
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}
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