sim/testsuite/sim/bfin/m13.s

   1 //  Test extraction from accumulators:
   2 //  SIGNED FRACTIONAL and SIGNED INT mode into register PAIR
   3 # mach: bfin
   4
   5 .include "testutils.inc"
   6         start
   7
   8
   9 // load r0=0x7ffffff0
  10 // load r1=0xfffffff0
  11 // load r2=0x0fffffff
  12 // load r3=0x80100000
  13 // load r4=0x000000ff
  14         loadsym P0, data0;
  15         R0 = [ P0 ++ ];
  16         R1 = [ P0 ++ ];
  17         R2 = [ P0 ++ ];
  18         R3 = [ P0 ++ ];
  19         R4 = [ P0 ++ ];
  20
  21 // extract
  22 // 0x007ffffff0 -> 0x7fffffff0
  23         A1 = A0 = 0;
  24         A1.w = R0;
  25         A0.w = R0;
  26         R7 = A1,  R6 = A0;
  27         DBGA ( R7.L , 0xfff0 );
  28         DBGA ( R7.H , 0x7fff );
  29         DBGA ( R6.L , 0xfff0 );
  30         DBGA ( R6.H , 0x7fff );
  31
  32 // extract with saturate
  33 // 0x00fffffff0 -> 0x7ffffffff
  34         A1 = A0 = 0;
  35         A1.w = R1;
  36         A0.w = R1;
  37         R7 = A1,  R6 = A0;
  38         DBGA ( R7.L , 0xffff );
  39         DBGA ( R7.H , 0x7fff );
  40         DBGA ( R6.L , 0xffff );
  41         DBGA ( R6.H , 0x7fff );
  42
  43 // extract with saturate negative
  44 // 0xff0ffffff0 -> 0x80000000
  45         A1 = A0 = 0;
  46         A1.w = R2;
  47         A0.w = R2;
  48         A1.x = R4.L;
  49         A0.x = R4.L;
  50         R7 = A1,  R6 = A0;
  51         DBGA ( R7.L , 0x0000 );
  52         DBGA ( R7.H , 0x8000 );
  53         DBGA ( R6.L , 0x0000 );
  54         DBGA ( R6.H , 0x8000 );
  55
  56 // extract integer (same as fract)
  57 // 0x007ffffff0 -> 0x7fffffff0
  58         A1 = A0 = 0;
  59         A1.w = R0;
  60         A0.w = R0;
  61         R7 = A1,  R6 = A0  (IS);
  62         DBGA ( R7.L , 0xfff0 );
  63         DBGA ( R7.H , 0x7fff );
  64         DBGA ( R6.L , 0xfff0 );
  65         DBGA ( R6.H , 0x7fff );
  66
  67 // extract with saturate negative
  68 // 0xff0ffffff0 -> 0x80000000
  69         A1 = A0 = 0;
  70         A1.w = R2;
  71         A0.w = R2;
  72         A1.x = R4.L;
  73         A0.x = R4.L;
  74         R7 = A1,  R6 = A0  (IS);
  75         DBGA ( R7.L , 0x0000 );
  76         DBGA ( R7.H , 0x8000 );
  77         DBGA ( R6.L , 0x0000 );
  78         DBGA ( R6.H , 0x8000 );
  79
  80         pass
  81
  82         .data
  83 data0:
  84         .dw 0xfff0
  85         .dw 0x7fff
  86         .dw 0xfff0
  87         .dw 0xffff
  88         .dw 0xffff
  89         .dw 0x0fff
  90         .dw 0x0000
  91         .dw 0x8010
  92         .dw 0x00ff
  93         .dw 0x0000