target-arm/op_mem.h

   1 /* ARM memory operations.  */
   2
   3 /* Load from address T1 into T0.  */
   4 #define MEM_LD_OP(name) \
   5 void OPPROTO glue(op_ld##name,MEMSUFFIX)(void) \
   6 { \
   7     T0 = glue(ld##name,MEMSUFFIX)(T1); \
   8     FORCE_RET(); \
   9 }
  10
  11 MEM_LD_OP(ub)
  12 MEM_LD_OP(sb)
  13 MEM_LD_OP(uw)
  14 MEM_LD_OP(sw)
  15 MEM_LD_OP(l)
  16
  17 #undef MEM_LD_OP
  18
  19 /* Store T0 to address T1.  */
  20 #define MEM_ST_OP(name) \
  21 void OPPROTO glue(op_st##name,MEMSUFFIX)(void) \
  22 { \
  23     glue(st##name,MEMSUFFIX)(T1, T0); \
  24     FORCE_RET(); \
  25 }
  26
  27 MEM_ST_OP(b)
  28 MEM_ST_OP(w)
  29 MEM_ST_OP(l)
  30
  31 #undef MEM_ST_OP
  32
  33 /* Swap T0 with memory at address T1.  */
  34 /* ??? Is this exception safe?  */
  35 #define MEM_SWP_OP(name, lname) \
  36 void OPPROTO glue(op_swp##name,MEMSUFFIX)(void) \
  37 { \
  38     uint32_t tmp; \
  39     cpu_lock(); \
  40     tmp = glue(ld##lname,MEMSUFFIX)(T1); \
  41     glue(st##name,MEMSUFFIX)(T1, T0); \
  42     T0 = tmp; \
  43     cpu_unlock(); \
  44     FORCE_RET(); \
  45 }
  46
  47 MEM_SWP_OP(b, ub)
  48 MEM_SWP_OP(l, l)
  49
  50 #undef MEM_SWP_OP
  51
  52 /* Floating point load/store.  Address is in T1 */
  53 #define VFP_MEM_OP(p, w) \
  54 void OPPROTO glue(op_vfp_ld##p,MEMSUFFIX)(void) \
  55 { \
  56     FT0##p = glue(ldf##w,MEMSUFFIX)(T1); \
  57     FORCE_RET(); \
  58 } \
  59 void OPPROTO glue(op_vfp_st##p,MEMSUFFIX)(void) \
  60 { \
  61     glue(stf##w,MEMSUFFIX)(T1, FT0##p); \
  62     FORCE_RET(); \
  63 }
  64
  65 VFP_MEM_OP(s,l)
  66 VFP_MEM_OP(d,q)
  67
  68 #undef VFP_MEM_OP
  69
  70 #undef MEMSUFFIX