sim/testsuite/bpf/endbe.s

   1 # mach: bpf
   2 # as: --EB
   3 # ld: --EB
   4 # sim: -E big
   5 # output: pass\nexit 0 (0x0)\n
   6 /* endbe.s
   7    Tests for BPF endianness-conversion instructions in simulator
   8    running in BIG ENDIAN
   9
  10    Both 'be' and 'le' ISAs have both endbe and endle instructions.  */
  11
  12     .include "testutils.inc"
  13
  14     .text
  15     .global main
  16     .type main, @function
  17 main:
  18     lddw        %r1, 0x12345678deadbeef
  19     endle       %r1, 64
  20     fail_ne     %r1, 0xefbeadde78563412
  21     endle       %r1, 64
  22     fail_ne     %r1, 0x12345678deadbeef
  23
  24     /* `bitsize` < 64 will truncate  */
  25     endle       %r1, 32
  26     fail_ne     %r1, 0xefbeadde
  27     endle       %r1, 32
  28     fail_ne     %r1, 0xdeadbeef
  29
  30     endle       %r1, 16
  31     fail_ne     %r1, 0xefbe
  32     endle       %r1, 16
  33     fail_ne     %r1, 0xbeef
  34
  35     /* endbe on be should be noop (except truncate)  */
  36     lddw        %r1, 0x12345678deadbeef
  37     endbe       %r1, 64
  38     fail_ne     %r1, 0x12345678deadbeef
  39
  40     endbe       %r1, 32
  41     fail_ne     %r1, 0xdeadbeef
  42
  43     endbe       %r1, 16
  44     fail_ne     %r1, 0xbeef
  45
  46     pass