hwacha/decode_hwacha_ut.h

   1 #ifndef _DECODE_HWACHA_UT_H
   2 #define _DECODE_HWACHA_UT_H
   3
   4 #include "decode.h"
   5 #include "decode_hwacha.h"
   6 #include "hwacha.h"
   7 #include "hwacha_xcpt.h"
   8
   9 #define UTIDX (i)
  10
  11 #undef RS1
  12 #undef RS2
  13 #undef WRITE_RD
  14
  15 static inline reg_t read_rs1(hwacha_t* h, insn_t insn, uint32_t idx)
  16 {
  17   if (INSN_RS1 >= h->get_ct_state()->nxpr)
  18     h->take_exception(HWACHA_CAUSE_VF_ILLEGAL_REGID, VF_PC);
  19   return UT_RS1(idx);
  20 }
  21
  22 static inline reg_t read_rs2(hwacha_t* h, insn_t insn, uint32_t idx)
  23 {
  24   if (INSN_RS2 >= h->get_ct_state()->nxpr)
  25     h->take_exception(HWACHA_CAUSE_VF_ILLEGAL_REGID, VF_PC);
  26   return UT_RS2(idx);
  27 }
  28
  29 static inline void write_rd(hwacha_t* h, insn_t insn, uint32_t idx, reg_t value)
  30 {
  31   if (INSN_RD >= h->get_ct_state()->nxpr)
  32     h->take_exception(HWACHA_CAUSE_VF_ILLEGAL_REGID, VF_PC);
  33   UT_WRITE_RD(idx, value);
  34 }
  35
  36 #define RS1 read_rs1(h, insn, UTIDX)
  37 #define RS2 read_rs2(h, insn, UTIDX)
  38 #define WRITE_RD(value) write_rd(h, insn, UTIDX, value)
  39
  40 #undef FRS1
  41 #undef FRS2
  42 #undef FRS3
  43 #undef WRITE_FRD
  44
  45 static inline reg_t read_frs1(hwacha_t* h, insn_t insn, uint32_t idx)
  46 {
  47   if (INSN_RS1 >= h->get_ct_state()->nfpr)
  48     h->take_exception(HWACHA_CAUSE_VF_ILLEGAL_REGID, VF_PC);
  49   return UT_FRS1(idx);
  50 }
  51
  52 static inline reg_t read_frs2(hwacha_t* h, insn_t insn, uint32_t idx)
  53 {
  54   if (INSN_RS2 >= h->get_ct_state()->nfpr)
  55     h->take_exception(HWACHA_CAUSE_VF_ILLEGAL_REGID, VF_PC);
  56   return UT_FRS2(idx);
  57 }
  58
  59 static inline reg_t read_frs3(hwacha_t* h, insn_t insn, uint32_t idx)
  60 {
  61   if (INSN_RS3 >= h->get_ct_state()->nfpr)
  62     h->take_exception(HWACHA_CAUSE_VF_ILLEGAL_REGID, VF_PC);
  63   return UT_FRS3(idx);
  64 }
  65
  66 static inline void write_frd(hwacha_t* h, insn_t insn, uint32_t idx, reg_t value)
  67 {
  68   if (INSN_RD >= h->get_ct_state()->nfpr)
  69     h->take_exception(HWACHA_CAUSE_VF_ILLEGAL_REGID, VF_PC);
  70   UT_WRITE_FRD(idx, value);
  71 }
  72
  73 #define FRS1 read_frs1(h, insn, UTIDX)
  74 #define FRS2 read_frs2(h, insn, UTIDX)
  75 #define FRS3 read_frs3(h, insn, UTIDX)
  76 #define WRITE_FRD(value) write_frd(h, insn, UTIDX, value)
  77
  78 // we assume the vector unit has floating-point alus
  79 #undef require_fp
  80 #define require_fp
  81
  82 // YUNSUP FIXME
  83 #undef set_fp_exceptions
  84 #define set_fp_exceptions
  85
  86 #endif