diff options
| -rw-r--r-- | tests/tcg/s390x/Makefile.target | 1 | ||||
| -rw-r--r-- | tests/tcg/s390x/epsw.c | 23 |
2 files changed, 24 insertions, 0 deletions
diff --git a/tests/tcg/s390x/Makefile.target b/tests/tcg/s390x/Makefile.target index 85abfbb..2ef22c8 100644 --- a/tests/tcg/s390x/Makefile.target +++ b/tests/tcg/s390x/Makefile.target @@ -36,6 +36,7 @@ TESTS+=rxsbg TESTS+=ex-relative-long TESTS+=ex-branch TESTS+=mxdb +TESTS+=epsw cdsg: CFLAGS+=-pthread cdsg: LDFLAGS+=-pthread diff --git a/tests/tcg/s390x/epsw.c b/tests/tcg/s390x/epsw.c new file mode 100644 index 0000000..affb1a5e --- /dev/null +++ b/tests/tcg/s390x/epsw.c @@ -0,0 +1,23 @@ +/* + * Test the EPSW instruction. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include <assert.h> +#include <stdlib.h> + +int main(void) +{ + unsigned long r1 = 0x1234567887654321UL, r2 = 0x8765432112345678UL; + + asm("cr %[r1],%[r2]\n" /* cc = 1 */ + "epsw %[r1],%[r2]" + : [r1] "+r" (r1), [r2] "+r" (r2) : : "cc"); + + /* Do not check the R and RI bits. */ + r1 &= ~0x40000008UL; + assert(r1 == 0x1234567807051001UL); + assert(r2 == 0x8765432180000000UL); + + return EXIT_SUCCESS; +} |