sim/testsuite/sh/psub.s

   1 # sh testcase for psub
   2 # mach:  shdsp
   3 # as(shdsp):    -defsym sim_cpu=1 -dsp
   4
   5         .include "testutils.inc"
   6
   7         start
   8         set_grs_a5a5
   9         lds     r0, a0
  10         pcopy   a0, a1
  11         lds     r0, x0
  12         lds     r0, x1
  13         lds     r0, y0
  14         lds     r0, y1
  15         pcopy   x0, m0
  16         pcopy   y1, m1
  17
  18 psub_sx_sy:
  19         # 0xa5a5a5a5 minus 0xa5a5a5a5 equals zero
  20         psub    x0, y0, a0
  21         assert_sreg     0, a0
  22
  23 psub_sy_sx:
  24         # 100 - 25 = 75
  25         mov     #100, r0
  26         mov     #25, r1
  27         lds     r0, y1
  28         lds     r1, x1
  29         psub    y1, x1, a0
  30         assert_sreg     75, a0
  31
  32 dct_psub:
  33         # 100 - 25 = 75
  34         set_dcfalse
  35         dct     psub    y1, x1, a1
  36         assert_sreg2    0xa5a5a5a5, a1
  37         set_dctrue
  38         dct     psub    y1, x1, a1
  39         assert_sreg2    75, a1
  40
  41 dcf_psub:
  42         # 25 - 100 = -75
  43         set_dctrue
  44         dcf     psub    x1, y1, m1
  45         assert_sreg2    0xa5a5a5a5, m1
  46         set_dcfalse
  47         dcf     psub    x1, y1, m1
  48         assert_sreg2    -75, m1
  49
  50 psub_pmuls:
  51         # 25 - 100 = -75, and 2 x 2 = 8 (yes, eight, not four)
  52         mov     #2, r0
  53         shll16  r0
  54         lds     r0, x0
  55         lds     r0, y0
  56         psub    x1, y1, a1      pmuls   x0, y0, a0
  57         assert_sreg     8, a0
  58         assert_sreg2    -75, a1
  59
  60         set_greg        0xa5a5a5a5, r0
  61         set_greg        0xa5a5a5a5, r1
  62         test_grs_a5a5
  63         pass
  64         exit 0