sim/testsuite/bfin/m10.s

   1 # mach: bfin
   2
   3 //  Test extraction from accumulators:
   4 //  ROUND/TRUNCATE in UNSIGNED FRACTIONAL mode
   5 //  test ops: "+="
   6
   7 .include "testutils.inc"
   8         start
   9
  10
  11 // load r0=0xfffef000
  12 // load r1=0xfffff000
  13 // load r2=0x00008000
  14 // load r3=0x00018000
  15 // load r4=0x0000007f
  16         loadsym P0, data0
  17         R0 = [ P0 ++ ];
  18         R1 = [ P0 ++ ];
  19         R2 = [ P0 ++ ];
  20         R3 = [ P0 ++ ];
  21         R4 = [ P0 ++ ];
  22
  23 // round
  24 // 0x00fffef000 -> 0xffff
  25         A1 = A0 = 0;
  26         A1.w = R0;
  27         A0.w = R0;
  28         R5.H = A1, R5.L = A0 (FU);
  29         DBGA ( R5.L , 0xffff );
  30         DBGA ( R5.H , 0xffff );
  31
  32 // truncate
  33 // 0x00fffef00 -> 0xfffe
  34         A1 = A0 = 0;
  35         A1.w = R0;
  36         A0.w = R0;
  37         R5.H = A1, R5.L = A0 (TFU);
  38         DBGA ( R5.L , 0xfffe );
  39         DBGA ( R5.H , 0xfffe );
  40
  41 // round
  42 // 0x00fffff000 -> 0xffff
  43         A1 = A0 = 0;
  44         A1.w = R1;
  45         A0.w = R1;
  46         R5.H = A1, R5.L = A0 (FU);
  47         DBGA ( R5.L , 0xffff );
  48         DBGA ( R5.H , 0xffff );
  49
  50         pass
  51
  52         .data;
  53 data0:
  54         .dw 0xf000
  55         .dw 0xfffe
  56         .dw 0xf000
  57         .dw 0xffff
  58         .dw 0x8000
  59         .dw 0x0000
  60         .dw 0x8000
  61         .dw 0x0001
  62         .dw 0x007f
  63         .dw 0x0000