ad8c851d2e
Improves "b213c9f5: target/s390x: Implement TRTR" by introducing the intermediate functions, which are compatible with dx_helper type. Signed-off-by: Pavel Zbitskiy <pavel.zbitskiy@gmail.com> Message-Id: <20180821025104.19604-6-pavel.zbitskiy@gmail.com> Reviewed-by: David Hildenbrand <david@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
49 lines
1.0 KiB
C
49 lines
1.0 KiB
C
#include <stdint.h>
|
|
#include <unistd.h>
|
|
|
|
int main(void)
|
|
{
|
|
char op1[] = "hello";
|
|
char op2[256];
|
|
uint64_t r1 = 0xffffffffffffffffull;
|
|
uint64_t r2 = 0xffffffffffffffffull;
|
|
uint64_t cc;
|
|
int i;
|
|
|
|
for (i = 0; i < 256; i++) {
|
|
if (i == 0) {
|
|
op2[i] = 0xaa;
|
|
} else {
|
|
op2[i] = 0;
|
|
}
|
|
}
|
|
asm volatile(
|
|
" j 2f\n"
|
|
"1: trt 0(1,%[op1]),0(%[op2])\n"
|
|
"2: exrl %[op1_len],1b\n"
|
|
" lgr %[r1],%%r1\n"
|
|
" lgr %[r2],%%r2\n"
|
|
" ipm %[cc]\n"
|
|
: [r1] "+r" (r1),
|
|
[r2] "+r" (r2),
|
|
[cc] "=r" (cc)
|
|
: [op1] "r" (&op1),
|
|
[op1_len] "r" (5),
|
|
[op2] "r" (&op2)
|
|
: "r1", "r2", "cc");
|
|
cc = (cc >> 28) & 3;
|
|
if (cc != 2) {
|
|
write(1, "bad cc\n", 7);
|
|
return 1;
|
|
}
|
|
if ((char *)r1 != &op1[5]) {
|
|
write(1, "bad r1\n", 7);
|
|
return 1;
|
|
}
|
|
if (r2 != 0xffffffffffffffaaull) {
|
|
write(1, "bad r2\n", 7);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|