riscv/rocc.h

   1 #ifndef _RISCV_ROCC_H
   2 #define _RISCV_ROCC_H
   3
   4 #include "extension.h"
   5
   6 struct rocc_insn_t
   7 {
   8   unsigned opcode : 7;
   9   unsigned xs2 : 1;
  10   unsigned xs1 : 1;
  11   unsigned xd : 1;
  12   unsigned funct : 7;
  13   unsigned rs2 : 5;
  14   unsigned rs1 : 5;
  15   unsigned rd : 5;
  16 };
  17
  18 class rocc_t : public extension_t
  19 {
  20  public:
  21   virtual reg_t custom0(rocc_insn_t insn, reg_t xs1, reg_t xs2);
  22   virtual reg_t custom1(rocc_insn_t insn, reg_t xs1, reg_t xs2);
  23   virtual reg_t custom2(rocc_insn_t insn, reg_t xs1, reg_t xs2);
  24   virtual reg_t custom3(rocc_insn_t insn, reg_t xs1, reg_t xs2);
  25   std::vector<insn_desc_t> get_instructions();
  26 };
  27
  28 #endif