target-arm/op_addsub.h

   1 /*
   2  * ARMv6 integer SIMD operations.
   3  *
   4  * Copyright (c) 2007 CodeSourcery.
   5  * Written by Paul Brook
   6  *
   7  * This code is licenced under the GPL.
   8  */
   9
  10 #ifdef ARITH_GE
  11 #define DECLARE_GE uint32_t ge = 0
  12 #define SET_GE env->GE = ge
  13 #else
  14 #define DECLARE_GE do{}while(0)
  15 #define SET_GE do{}while(0)
  16 #endif
  17
  18 #define RESULT(val, n, width) \
  19     res |= ((uint32_t)(glue(glue(uint,width),_t))(val)) << (n * width)
  20
  21 void OPPROTO glue(glue(op_,PFX),add16_T0_T1)(void)
  22 {
  23     uint32_t res = 0;
  24     DECLARE_GE;
  25
  26     ADD16(T0, T1, 0);
  27     ADD16(T0 >> 16, T1 >> 16, 1);
  28     SET_GE;
  29     T0 = res;
  30     FORCE_RET();
  31 }
  32
  33 void OPPROTO glue(glue(op_,PFX),add8_T0_T1)(void)
  34 {
  35     uint32_t res = 0;
  36     DECLARE_GE;
  37
  38     ADD8(T0, T1, 0);
  39     ADD8(T0 >> 8, T1 >> 8, 1);
  40     ADD8(T0 >> 16, T1 >> 16, 2);
  41     ADD8(T0 >> 24, T1 >> 24, 3);
  42     SET_GE;
  43     T0 = res;
  44     FORCE_RET();
  45 }
  46
  47 void OPPROTO glue(glue(op_,PFX),sub16_T0_T1)(void)
  48 {
  49     uint32_t res = 0;
  50     DECLARE_GE;
  51
  52     SUB16(T0, T1, 0);
  53     SUB16(T0 >> 16, T1 >> 16, 1);
  54     SET_GE;
  55     T0 = res;
  56     FORCE_RET();
  57 }
  58
  59 void OPPROTO glue(glue(op_,PFX),sub8_T0_T1)(void)
  60 {
  61     uint32_t res = 0;
  62     DECLARE_GE;
  63
  64     SUB8(T0, T1, 0);
  65     SUB8(T0 >> 8, T1 >> 8, 1);
  66     SUB8(T0 >> 16, T1 >> 16, 2);
  67     SUB8(T0 >> 24, T1 >> 24, 3);
  68     SET_GE;
  69     T0 = res;
  70     FORCE_RET();
  71 }
  72
  73 void OPPROTO glue(glue(op_,PFX),subaddx_T0_T1)(void)
  74 {
  75     uint32_t res = 0;
  76     DECLARE_GE;
  77
  78     ADD16(T0, T1, 0);
  79     SUB16(T0 >> 16, T1 >> 16, 1);
  80     SET_GE;
  81     T0 = res;
  82     FORCE_RET();
  83 }
  84
  85 void OPPROTO glue(glue(op_,PFX),addsubx_T0_T1)(void)
  86 {
  87     uint32_t res = 0;
  88     DECLARE_GE;
  89
  90     SUB16(T0, T1, 0);
  91     ADD16(T0 >> 16, T1 >> 16, 1);
  92     SET_GE;
  93     T0 = res;
  94     FORCE_RET();
  95 }
  96
  97 #undef DECLARE_GE
  98 #undef SET_GE
  99 #undef RESULT
 100
 101 #undef ARITH_GE
 102 #undef PFX
 103 #undef ADD16
 104 #undef SUB16
 105 #undef ADD8
 106 #undef SUB8