libsnark::ALU_sub_gadget< FieldT > Class Template Reference

#include <alu_arithmetic.hpp>

Inheritance diagram for libsnark::ALU_sub_gadget< FieldT >:

Collaboration diagram for libsnark::ALU_sub_gadget< FieldT >:

Public Member Functions
	ALU_sub_gadget (tinyram_protoboard< FieldT > &pb, const pb_variable_array< FieldT > &opcode_indicators, const word_variable_gadget< FieldT > &desval, const word_variable_gadget< FieldT > &arg1val, const word_variable_gadget< FieldT > &arg2val, const pb_variable< FieldT > &flag, const pb_variable< FieldT > &result, const pb_variable< FieldT > &result_flag, const std::string &annotation_prefix="")
void	generate_r1cs_constraints ()
void	generate_r1cs_witness ()
Public Member Functions inherited from libsnark::ALU_arithmetic_gadget< FieldT >
	ALU_arithmetic_gadget (tinyram_protoboard< FieldT > &pb, const pb_variable_array< FieldT > &opcode_indicators, const word_variable_gadget< FieldT > &desval, const word_variable_gadget< FieldT > &arg1val, const word_variable_gadget< FieldT > &arg2val, const pb_variable< FieldT > &flag, const pb_variable< FieldT > &result, const pb_variable< FieldT > &result_flag, const std::string &annotation_prefix="")
Public Member Functions inherited from libsnark::tinyram_standard_gadget< FieldT >
	tinyram_standard_gadget (tinyram_protoboard< FieldT > &pb, const std::string &annotation_prefix="")
Public Member Functions inherited from libsnark::tinyram_gadget< FieldT >
	tinyram_gadget (tinyram_protoboard< FieldT > &pb, const std::string &annotation_prefix="")
Public Member Functions inherited from libsnark::gadget< FieldT >
	gadget (protoboard< FieldT > &pb, const std::string &annotation_prefix)

Additional Inherited Members
Public Attributes inherited from libsnark::ALU_arithmetic_gadget< FieldT >
const pb_variable_array< FieldT >	opcode_indicators
const word_variable_gadget< FieldT >	desval
const word_variable_gadget< FieldT >	arg1val
const word_variable_gadget< FieldT >	arg2val
const pb_variable< FieldT >	flag
const pb_variable< FieldT >	result
const pb_variable< FieldT >	result_flag
Protected Attributes inherited from libsnark::tinyram_gadget< FieldT >
tinyram_protoboard< FieldT > &	pb
Protected Attributes inherited from libsnark::gadget< FieldT >
protoboard< FieldT > &	pb
const std::string	annotation_prefix

Detailed Description

template<typename FieldT>
class libsnark::ALU_sub_gadget< FieldT >

Definition at line 334 of file alu_arithmetic.hpp.

Constructor & Destructor Documentation

ALU_sub_gadget()

template<typename FieldT >

libsnark::ALU_sub_gadget< FieldT >::ALU_sub_gadget ( tinyram_protoboard< FieldT > &  pb, const pb_variable_array< FieldT > &  opcode_indicators, const word_variable_gadget< FieldT > &  desval, const word_variable_gadget< FieldT > &  arg1val, const word_variable_gadget< FieldT > &  arg2val, const pb_variable< FieldT > &  flag, const pb_variable< FieldT > &  result, const pb_variable< FieldT > &  result_flag, const std::string &  annotation_prefix = ""  )

inline

Definition at line 345 of file alu_arithmetic.hpp.

        : ALU_arithmetic_gadget<FieldT>(
              pb,
              opcode_indicators,
              desval,
              arg1val,
              arg2val,
              flag,
              result,
              result_flag,
              annotation_prefix)
    {
        intermediate_result.allocate(
            pb, FMT(this->annotation_prefix, " intermediate_result"));
        negated_flag.allocate(
            pb, FMT(this->annotation_prefix, " negated_flag"));
        res_word.allocate(
            pb, pb.ap.w, FMT(this->annotation_prefix, " res_word"));
 
        res_word_and_negated_flag = res_word;
        res_word_and_negated_flag.emplace_back(negated_flag);
 
        unpack_intermediate.reset(new packing_gadget<FieldT>(
            pb,
            res_word_and_negated_flag,
            intermediate_result,
            FMT(this->annotation_prefix, " unpack_intermediate")));
        pack_result.reset(new packing_gadget<FieldT>(
            pb,
            res_word,
            result,
            FMT(this->annotation_prefix, " pack_result")));
    }

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Member Function Documentation

generate_r1cs_constraints()

template<typename FieldT >

void libsnark::ALU_sub_gadget< FieldT >::generate_r1cs_constraints ( )

virtual

Implements libsnark::tinyram_standard_gadget< FieldT >.

generate_r1cs_witness()

template<typename FieldT >

void libsnark::ALU_sub_gadget< FieldT >::generate_r1cs_witness ( )

virtual

Implements libsnark::tinyram_standard_gadget< FieldT >.

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The documentation for this class was generated from the following file:

• /home/runner/work/libsnark/libsnark/libsnark/gadgetlib1/gadgets/cpu_checkers/tinyram/components/alu_arithmetic.hpp