/*
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/*
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* Copyright (c) 2016 by Alex I. Kuznetsov.
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* Copyright (c) 2016 by Alex I. Kuznetsov.
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*
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*
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* Part of the LXP32 CPU IP core.
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* Part of the LXP32 CPU IP core.
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*
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*
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* This module implements members of the Range class.
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* This module implements members of the Range class.
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*/
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*/
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#include "range.h"
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#include "range.h"
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#include <stdexcept>
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#include <stdexcept>
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Range::Range(): _valid(false) {}
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Range::Range(): _valid(false) {}
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Range::Range(int h,int l): _high(h),_low(l),_valid(true) {
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Range::Range(int h,int l): _high(h),_low(l),_valid(true) {
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if(l>h) throw std::runtime_error("Invalid range");
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if(l>h) throw std::runtime_error("Invalid range");
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}
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}
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void Range::assign(int h,int l) {
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void Range::assign(int h,int l) {
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if(l>h) throw std::runtime_error("Invalid range");
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if(l>h) throw std::runtime_error("Invalid range");
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_high=h;
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_high=h;
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_low=l;
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_low=l;
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_valid=true;
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_valid=true;
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}
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}
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void Range::clear() {
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void Range::clear() {
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_valid=false;
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_valid=false;
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}
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}
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bool Range::valid() const {
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bool Range::valid() const {
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return _valid;
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return _valid;
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}
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}
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int Range::high() const {
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int Range::high() const {
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if(!_valid) throw std::runtime_error("Invalid range");
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if(!_valid) throw std::runtime_error("Invalid range");
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return _high;
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return _high;
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}
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}
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int Range::low() const {
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int Range::low() const {
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if(!_valid) throw std::runtime_error("Invalid range");
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if(!_valid) throw std::runtime_error("Invalid range");
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return _low;
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return _low;
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}
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}
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int Range::length() const {
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int Range::length() const {
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if(!_valid) throw std::runtime_error("Invalid range");
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if(!_valid) throw std::runtime_error("Invalid range");
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return _high-_low+1;
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return _high-_low+1;
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}
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}
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std::string Range::toString() const {
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std::string Range::toString() const {
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if(!_valid) throw std::runtime_error("Invalid range");
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if(!_valid) throw std::runtime_error("Invalid range");
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return std::to_string(_high)+" downto "+std::to_string(_low);
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return std::to_string(_high)+" downto "+std::to_string(_low);
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}
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}
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