tests/test-i386-shift.h

   1
   2 #define exec_op glue(exec_, OP)
   3 #define exec_opl glue(glue(exec_, OP), l)
   4 #define exec_opw glue(glue(exec_, OP), w)
   5 #define exec_opb glue(glue(exec_, OP), b)
   6
   7 #define EXECSHIFT(size, res, s1, flags) \
   8     asm ("push %4\n\t"\
   9          "popf\n\t"\
  10          stringify(OP) size " %%cl, %" size "0\n\t" \
  11          "pushf\n\t"\
  12          "popl %1\n\t"\
  13          : "=q" (res), "=g" (flags)\
  14          : "c" (s1), "0" (res), "1" (flags));
  15
  16 void exec_opl(int s0, int s1, int iflags)
  17 {
  18     int res, flags;
  19     res = s0;
  20     flags = iflags;
  21     EXECSHIFT("", res, s1, flags);
  22     /* overflow is undefined if count != 1 */
  23     if (s1 != 1)
  24       flags &= ~CC_O;
  25     printf("%-10s A=%08x B=%08x R=%08x CCIN=%04x CC=%04x\n",
  26            stringify(OP) "l", s0, s1, res, iflags, flags & CC_MASK);
  27 }
  28
  29 void exec_opw(int s0, int s1, int iflags)
  30 {
  31     int res, flags;
  32     res = s0;
  33     flags = iflags;
  34     EXECSHIFT("w", res, s1, flags);
  35     /* overflow is undefined if count != 1 */
  36     if (s1 != 1)
  37       flags &= ~CC_O;
  38     printf("%-10s A=%08x B=%08x R=%08x CCIN=%04x CC=%04x\n",
  39            stringify(OP) "w", s0, s1, res, iflags, flags & CC_MASK);
  40 }
  41
  42 void exec_opb(int s0, int s1, int iflags)
  43 {
  44     int res, flags;
  45     res = s0;
  46     flags = iflags;
  47     EXECSHIFT("b", res, s1, flags);
  48     /* overflow is undefined if count != 1 */
  49     if (s1 != 1)
  50       flags &= ~CC_O;
  51     printf("%-10s A=%08x B=%08x R=%08x CCIN=%04x CC=%04x\n",
  52            stringify(OP) "b", s0, s1, res, iflags, flags & CC_MASK);
  53 }
  54
  55 void exec_op(int s0, int s1)
  56 {
  57     exec_opl(s0, s1, 0);
  58     exec_opw(s0, s1, 0);
  59     exec_opb(s0, s1, 0);
  60 #ifdef OP_CC
  61     exec_opl(s0, s1, CC_C);
  62     exec_opw(s0, s1, CC_C);
  63     exec_opb(s0, s1, CC_C);
  64 #endif
  65 }
  66
  67 void glue(test_, OP)(void)
  68 {
  69     int i;
  70     for(i = 0; i < 32; i++)
  71         exec_op(0x12345678, i);
  72     for(i = 0; i < 32; i++)
  73         exec_op(0x82345678, i);
  74 }
  75
  76 void *glue(_test_, OP) __init_call = glue(test_, OP);
  77
  78 #undef OP
  79 #undef OP_CC