target-m68k/op-hacks.h

   1 /* Various hacks to make code written for a dynamic code generator work
   2    with regular QEMU.  */
   3
   4 static int free_qreg;
   5
   6 #define QMODE_I32 1
   7 #define QMODE_F32 1
   8 #define QMODE_F64 2
   9
  10 static inline int gen_new_qreg(int mode)
  11 {
  12     int qreg;
  13
  14     qreg = free_qreg;
  15     free_qreg += mode;
  16     if (free_qreg > MAX_QREGS) {
  17         fprintf(stderr, "qreg overflow\n");
  18         abort();
  19     }
  20     return qreg + TARGET_NUM_QREGS;
  21 }
  22
  23 static inline int gen_im32(uint32_t i)
  24 {
  25     int qreg = gen_new_qreg(QMODE_I32);
  26     gen_op_mov32_im(qreg, i);
  27     return qreg;
  28 }
  29
  30 static inline void gen_op_ldf32(int dest, int addr)
  31 {
  32     gen_op_ld32(dest, addr);
  33 }
  34
  35 static inline void gen_op_stf32(int addr, int dest)
  36 {
  37     gen_op_st32(addr, dest);
  38 }
  39
  40 static inline void gen_op_pack_32_f32(int dest, int src)
  41 {
  42     gen_op_mov32(dest, src);
  43 }
  44
  45 static inline void gen_op_pack_f32_32(int dest, int src)
  46 {
  47     gen_op_mov32(dest, src);
  48 }
  49
  50 static inline void gen_op_flags_set(void)
  51 {
  52     /* Dummy op.  */
  53 }
  54
  55 static inline void gen_op_shl_im_cc(int val, int shift)
  56 {
  57     gen_op_shl_cc(val, gen_im32(shift));
  58 }
  59
  60 static inline void gen_op_shr_im_cc(int val, int shift)
  61 {
  62     gen_op_shr_cc(val, gen_im32(shift));
  63 }
  64
  65 static inline void gen_op_sar_im_cc(int val, int shift)
  66 {
  67     gen_op_sar_cc(val, gen_im32(shift));
  68 }
  69
  70 #ifdef USE_DIRECT_JUMP
  71 #define TBPARAM(x)
  72 #else
  73 #define TBPARAM(x) (long)(x)
  74 #endif
  75
  76 static inline void gen_op_goto_tb(int dummy, int n, long tb)
  77 {
  78     if (n == 0) {
  79         gen_op_goto_tb0(TBPARAM(tb));
  80     } else {
  81         gen_op_goto_tb1(TBPARAM(tb));
  82     }
  83 }