arch/blackfin/lib/smulsi3_highpart.S

   1 .align 2
   2 .global ___smulsi3_highpart;
   3 .type ___smulsi3_highpart, STT_FUNC;
   4
   5 #ifdef CONFIG_ARITHMETIC_OPS_L1
   6 .section .l1.text
   7 #else
   8 .text
   9 #endif
  10
  11 ___smulsi3_highpart:
  12         R2 = R1.L * R0.L (FU);
  13         R3 = R1.H * R0.L (IS,M);
  14         R0 = R0.H * R1.H, R1 = R0.H * R1.L (IS,M);
  15
  16         R1.L = R2.H + R1.L;
  17         cc = ac0;
  18         R2 = cc;
  19
  20         R1.L = R1.L + R3.L;
  21         cc = ac0;
  22         R1 >>>= 16;
  23         R3 >>>= 16;
  24         R1 = R1 + R3;
  25         R1 = R1 + R2;
  26         R2 = cc;
  27         R1 = R1 + R2;
  28
  29         R0 = R0 + R1;
  30         RTS;