sim/testsuite/sim/bfin/a22.s

   1 //  Test ALU  NEG accumulators
   2 # mach: bfin
   3
   4 .include "testutils.inc"
   5         start
   6
   7
   8         R0 = 0xffffffff;
   9         A0.w = R0;
  10         R0 = 0x7f (X);
  11         A0.x = R0;
  12         A0 = - A0;
  13         _DBG A0;
  14         R4 = A0.w;
  15         R5 = A0.x;
  16         DBGA ( R4.H , 0x0000 ); DBGA ( R4.L , 0x0001 );
  17         DBGA ( R5.H , 0xffff ); DBGA ( R5.L , 0xff80 );
  18
  19         R0 = 0x1;
  20         A0.w = R0;
  21         R0 = 0x0;
  22         A0.x = R0;
  23         A0 = - A0;
  24         R4 = A0.w;
  25         R5 = A0.x;
  26         _DBG A0;
  27         DBGA ( R4.H , 0xffff ); DBGA ( R4.L , 0xffff );
  28         DBGA ( R5.H , 0xffff ); DBGA ( R5.L , 0xffff );
  29
  30         R0 = 0xffffffff;
  31         A0.w = R0;
  32         R0 = 0xff (X);
  33         A0.x = R0;
  34         A0 = - A0;
  35         R4 = A0.w;
  36         R5 = A0.x;
  37         DBGA ( R4.H , 0x0000 ); DBGA ( R4.L , 0x0001 );
  38         DBGA ( R5.H , 0x0000 ); DBGA ( R5.L , 0x0000 );
  39
  40         R0 = 0x00000000;
  41         A0.w = R0;
  42         R0 = 0x80 (X);
  43         A0.x = R0;
  44         A0 = - A0;
  45         R4 = A0.w;
  46         R5 = A0.x;
  47         DBGA ( R4.H , 0xffff ); DBGA ( R4.L , 0xffff );
  48         DBGA ( R5.H , 0x0000 ); DBGA ( R5.L , 0x007f );
  49
  50 //  NEG NEG
  51         R0 = 0x00000000;
  52         A0.w = R0;
  53         R0 = 0x80 (X);
  54         A0.x = R0;
  55
  56         R0 = 0xffffffff;
  57         A1.w = R0;
  58         R0 = 0x7f (X);
  59         A1.x = R0;
  60
  61         A1 = - A1, A0 = - A0;
  62
  63         R4 = A0.w;
  64         R5 = A0.x;
  65         DBGA ( R4.H , 0xffff ); DBGA ( R4.L , 0xffff );
  66         DBGA ( R5.H , 0x0000 ); DBGA ( R5.L , 0x007f );
  67
  68         R4 = A1.w;
  69         R5 = A1.x;
  70         _DBG A1;
  71         DBGA ( R4.H , 0x0000 ); DBGA ( R4.L , 0x0001 );
  72         DBGA ( R5.H , 0xffff ); DBGA ( R5.L , 0xff80 );
  73
  74 //  NEG NEG register
  75         R0.L = 0x0001;
  76         R0.H = 0x8000;
  77
  78         R3 = - R0 (V);
  79         DBGA ( R3.H , 0x7fff ); DBGA ( R3.L , 0xffff );
  80
  81         _DBG ASTAT;
  82
  83         pass