tests/tcg/s390x/chrl.c

   1 #include <stdlib.h>
   2 #include <assert.h>
   3 #include <stdint.h>
   4
   5 static void test_chrl(void)
   6 {
   7     uint32_t program_mask, cc;
   8
   9     asm volatile (
  10         ".pushsection .rodata\n"
  11         "0:\n\t"
  12         ".short 1, 0x8000\n\t"
  13         ".popsection\n\t"
  14
  15         "chrl %[r], 0b\n\t"
  16         "ipm %[program_mask]\n"
  17         : [program_mask] "=r" (program_mask)
  18         : [r] "r" (1)
  19     );
  20
  21     cc = program_mask >> 28;
  22     assert(!cc);
  23
  24     asm volatile (
  25         ".pushsection .rodata\n"
  26         "0:\n\t"
  27         ".short -1, 0x8000\n\t"
  28         ".popsection\n\t"
  29
  30         "chrl %[r], 0b\n\t"
  31         "ipm %[program_mask]\n"
  32         : [program_mask] "=r" (program_mask)
  33         : [r] "r" (-1)
  34     );
  35
  36     cc = program_mask >> 28;
  37     assert(!cc);
  38 }
  39
  40 static void test_cghrl(void)
  41 {
  42     uint32_t program_mask, cc;
  43
  44     asm volatile (
  45         ".pushsection .rodata\n"
  46         "0:\n\t"
  47         ".short 1, 0x8000, 0, 0\n\t"
  48         ".popsection\n\t"
  49
  50         "cghrl %[r], 0b\n\t"
  51         "ipm %[program_mask]\n"
  52         : [program_mask] "=r" (program_mask)
  53         : [r] "r" (1L)
  54     );
  55
  56     cc = program_mask >> 28;
  57     assert(!cc);
  58
  59     asm volatile (
  60         ".pushsection .rodata\n"
  61         "0:\n\t"
  62         ".short -1, 0x8000, 0, 0\n\t"
  63         ".popsection\n\t"
  64
  65         "cghrl %[r], 0b\n\t"
  66         "ipm %[program_mask]\n"
  67         : [program_mask] "=r" (program_mask)
  68         : [r] "r" (-1L)
  69     );
  70
  71     cc = program_mask >> 28;
  72     assert(!cc);
  73 }
  74
  75 int main(void)
  76 {
  77     test_chrl();
  78     test_cghrl();
  79     return EXIT_SUCCESS;
  80 }