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 #undef RS1
  10 #undef RS2
  11 #undef WRITE_RD
  12
  13 static inline reg_t read_rs1(hwacha_t* h, insn_t insn, uint32_t idx)
  14 {
  15   if (INSN_RS1 >= h->get_ct_state()->nxpr)
  16     h->take_exception(HWACHA_CAUSE_VF_ILLEGAL_REGID, VF_PC);
  17   return UT_RS1(idx);
  18 }
  19
  20 static inline reg_t read_rs2(hwacha_t* h, insn_t insn, uint32_t idx)
  21 {
  22   if (INSN_RS2 >= h->get_ct_state()->nxpr)
  23     h->take_exception(HWACHA_CAUSE_VF_ILLEGAL_REGID, VF_PC);
  24   return UT_RS2(idx);
  25 }
  26
  27 static inline void write_rd(hwacha_t* h, insn_t insn, uint32_t idx, reg_t value)
  28 {
  29   if (INSN_RD >= h->get_ct_state()->nxpr)
  30     h->take_exception(HWACHA_CAUSE_VF_ILLEGAL_REGID, VF_PC);
  31   UT_WRITE_RD(idx, value);
  32 }
  33
  34 #define RS1 read_rs1(h, insn, UTIDX)
  35 #define RS2 read_rs2(h, insn, UTIDX)
  36 #define WRITE_RD(value) write_rd(h, insn, UTIDX, value)
  37
  38 #undef FRS1
  39 #undef FRS2
  40 #undef FRS3
  41 #undef WRITE_FRD
  42
  43 static inline reg_t read_frs1(hwacha_t* h, insn_t insn, uint32_t idx)
  44 {
  45   if (INSN_RS1 >= h->get_ct_state()->nfpr)
  46     h->take_exception(HWACHA_CAUSE_VF_ILLEGAL_REGID, VF_PC);
  47   return UT_FRS1(idx);
  48 }
  49
  50 static inline reg_t read_frs2(hwacha_t* h, insn_t insn, uint32_t idx)
  51 {
  52   if (INSN_RS2 >= h->get_ct_state()->nfpr)
  53     h->take_exception(HWACHA_CAUSE_VF_ILLEGAL_REGID, VF_PC);
  54   return UT_FRS2(idx);
  55 }
  56
  57 static inline reg_t read_frs3(hwacha_t* h, insn_t insn, uint32_t idx)
  58 {
  59   if (INSN_RS3 >= h->get_ct_state()->nfpr)
  60     h->take_exception(HWACHA_CAUSE_VF_ILLEGAL_REGID, VF_PC);
  61   return UT_FRS3(idx);
  62 }
  63
  64 static inline void write_frd(hwacha_t* h, insn_t insn, uint32_t idx, reg_t value)
  65 {
  66   if (INSN_RD >= h->get_ct_state()->nfpr)
  67     h->take_exception(HWACHA_CAUSE_VF_ILLEGAL_REGID, VF_PC);
  68   UT_WRITE_FRD(idx, value);
  69 }
  70
  71 #define FRS1 read_frs1(h, insn, UTIDX)
  72 #define FRS2 read_frs2(h, insn, UTIDX)
  73 #define FRS3 read_frs3(h, insn, UTIDX)
  74 #define WRITE_FRD(value) write_frd(h, insn, UTIDX, value)
  75
  76 // we assume the vector unit has floating-point alus
  77 #undef require_fp
  78 #define require_fp
  79
  80 #include "cvt16.h"
  81
  82 #define HFRS1 cvt_hs(FRS1)
  83 #define HFRS2 cvt_hs(FRS2)
  84 #define HFRS3 cvt_hs(FRS3)
  85
  86 #define WRITE_HFRD(value) write_frd(h, insn, UTIDX, cvt_sh(value, RM))
  87
  88 #define sext16(x) ((sreg_t)(int16_t)(x))
  89
  90 #endif