sim/testsuite/bfin/dsp_a8.s

   1 /*  ALU test program.
   2  *  Test instructions
   3  *  (r7,r6) = +/- (r0,r1);
   4  *  (r7,r6) = +/- (r0,r1)s;
   5  */
   6 # mach: bfin
   7
   8 .include "testutils.inc"
   9         start
  10
  11
  12 // test positive overflow
  13         R0.L = 0xffff;
  14         R0.H = 0x7fff;
  15         R1.L = 0x0001;
  16         R1.H = 0x0000;
  17         R7 = 0;
  18         ASTAT = R7;
  19         R6 = R0 + R1, R7 = R0 - R1 (NS);
  20         DBGA ( R6.L , 0x0000 );
  21         DBGA ( R6.H , 0x8000 );
  22         DBGA ( R7.L , 0xfffe );
  23         DBGA ( R7.H , 0x7fff );
  24         CC = AZ;        R7 = CC; DBGA ( R7.L , 0x0 );
  25         CC = AN;        R7 = CC; DBGA ( R7.L , 0x1 );
  26         CC =  V;        R7 = CC; DBGA ( R7.L , 0x1 );
  27         CC = AC0;       R7 = CC; DBGA ( R7.L , 0x1 );
  28
  29 // test positive overflow
  30         R0.L = 0xffff;
  31         R0.H = 0x7fff;
  32         R1.L = 0x0001;
  33         R1.H = 0x0000;
  34         R7 = 0;
  35         ASTAT = R7;
  36         R7 = R0 + R1, R6 = R0 - R1 (NS);
  37         DBGA ( R6.L , 0xfffe );
  38         DBGA ( R6.H , 0x7fff );
  39         DBGA ( R7.L , 0x0000 );
  40         DBGA ( R7.H , 0x8000 );
  41         CC = AZ;        R7 = CC; DBGA ( R7.L , 0x0 );
  42         CC = AN;        R7 = CC; DBGA ( R7.L , 0x1 );
  43         CC =  V;        R7 = CC; DBGA ( R7.L , 0x1 );
  44         CC = AC0;       R7 = CC; DBGA ( R7.L , 0x1 );
  45
  46 // test positive sat
  47         R0.L = 0xffff;
  48         R0.H = 0x7fff;
  49         R1.L = 0x0001;
  50         R1.H = 0x0000;
  51         R7 = 0;
  52         ASTAT = R7;
  53         R6 = R0 + R1, R7 = R0 - R1 (S);
  54         DBGA ( R6.L , 0xffff );
  55         DBGA ( R6.H , 0x7fff );
  56         DBGA ( R7.L , 0xfffe );
  57         DBGA ( R7.H , 0x7fff );
  58         CC = AZ;        R7 = CC; DBGA ( R7.L , 0x0 );
  59         CC = AN;        R7 = CC; DBGA ( R7.L , 0x0 );
  60         CC =  V;        R7 = CC; DBGA ( R7.L , 0x1 );
  61         CC = AC0;       R7 = CC; DBGA ( R7.L , 0x1 );
  62
  63 // test positive sat
  64         R0.L = 0xffff;
  65         R0.H = 0x7fff;
  66         R1.L = 0x0001;
  67         R1.H = 0x0000;
  68         R7 = 0;
  69         ASTAT = R7;
  70         R7 = R0 + R1, R6 = R0 - R1 (S);
  71         DBGA ( R6.L , 0xfffe );
  72         DBGA ( R6.H , 0x7fff );
  73         DBGA ( R7.L , 0xffff );
  74         DBGA ( R7.H , 0x7fff );
  75         CC = AZ;        R7 = CC; DBGA ( R7.L , 0x0 );
  76         CC = AN;        R7 = CC; DBGA ( R7.L , 0x0 );
  77         CC =  V;        R7 = CC; DBGA ( R7.L , 0x1 );
  78         CC = AC0;       R7 = CC; DBGA ( R7.L , 0x1 );
  79
  80         pass