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Copy pathMIO.cpp
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189 lines (189 loc) · 6.38 KB
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#include<bits/stdc++.h>
using namespace std;
typedef void(*rs)();
int varnum;
long long *ram;
int a,b,c;
string jph;
int index=1;
vector<string>code;
vector<string>sduc;
unordered_map<string,rs>keywords;
unordered_map<string,stack<int> >var;
unordered_map<string,int>jpd;
unordered_map<string,int>funname;
unordered_map<string,vector<string>>funin;
void runcode(vector<string>&sduc){
if(!sduc.size()||sduc[0][0]==':'||sduc[0][0]=='#') return;
try{
if(keywords[sduc[0]]==0) throw runtime_error("\'"+sduc[0]+"\' is not define!");
keywords[sduc[0]]();
}catch(const runtime_error &e){
cout<<"Catch a error on line "<<index<<":"<<e.what()<<'\n';
}catch (...){
cout<<"On line"<<index<<",have unknown error\n"<<'\n';
}
}
int gein(string s){return ('0'<=s[0]&&s[0]<='9')||s[0]=='-'?atoi(s.c_str()):(var[s].size()?var[s].top():throw runtime_error("Variable "+s+" is not defined"));}
vector<string> opencode(string x);
void fp() {a=atoi(sduc[1].c_str());ram=new long long[a];for(int i=0;i<a;i++) ram[i]=0;}
void mov() {a=gein(sduc[1].c_str()),b=gein(sduc[2].c_str());ram[a]=ram[b];}
void mio() {a=gein(sduc[1].c_str()),b=atoi(sduc[2].c_str());ram[a]=b;}
void add() {c=gein(sduc[1].c_str()),a=gein(sduc[2].c_str()),b=gein(sduc[3].c_str());ram[c]=ram[a]+ram[b];}
void sub() {c=gein(sduc[1].c_str()),a=gein(sduc[2].c_str()),b=gein(sduc[3].c_str());ram[c]=ram[a]-ram[b];}
void tim() {c=gein(sduc[1].c_str()),a=gein(sduc[2].c_str()),b=gein(sduc[3].c_str());ram[c]=ram[a]*ram[b];}
void div() {c=gein(sduc[1].c_str()),a=gein(sduc[2].c_str()),b=gein(sduc[3].c_str());ram[c]=ram[a]/ram[b];}
void mod() {c=gein(sduc[1].c_str()),a=gein(sduc[2].c_str()),b=gein(sduc[3].c_str());ram[c]=ram[a]%ram[b];}
void _and() {c=gein(sduc[1].c_str()),a=gein(sduc[2].c_str()),b=gein(sduc[3].c_str());ram[c]=ram[a]&ram[b];}
void _or() {c=gein(sduc[1].c_str()),a=gein(sduc[2].c_str()),b=gein(sduc[3].c_str());ram[c]=ram[a]|ram[b];}
void _compl() {a=gein(sduc[1].c_str());ram[a]=~ram[a];}
void _xor() {c=gein(sduc[1].c_str()),a=gein(sduc[2].c_str()),b=gein(sduc[3].c_str());ram[c]=ram[a]^ram[b];}
void rmv() {c=gein(sduc[1].c_str()),a=gein(sduc[2].c_str()),b=gein(sduc[3].c_str());ram[c]=ram[a]>>ram[b];}
void lmv() {c=gein(sduc[1].c_str()),a=gein(sduc[2].c_str()),b=gein(sduc[3].c_str());ram[c]=ram[a]<<ram[b];}
void jmp() {jph=sduc[1];index=jpd[jph];}
void _if() {a=gein(sduc[1].c_str());ram[a]&1?:index++;}
void ext() {cout<<"\ncode exit\n";system("pause");exit(0);}
void put() {for(size_t i=1;i<sduc.size();i++)a=gein(sduc[i].c_str()),cout<<ram[a];}
void get() {for(size_t i=1;i<sduc.size();i++)a=gein(sduc[i].c_str()),cin>>ram[a];}
void putc() {for(size_t i=1;i<sduc.size();i++)a=gein(sduc[i].c_str()),cout<<(char)ram[a];}
void getc() {char c;for(size_t i=1;i<sduc.size();i++)a=gein(sduc[i].c_str()),cin>>c,ram[a]=c;}
void sam() {c=gein(sduc[1].c_str()),a=gein(sduc[2].c_str()),b=gein(sduc[3].c_str());ram[c]=(ram[a]==ram[b]);}
void gre() {c=gein(sduc[1].c_str()),a=gein(sduc[2].c_str()),b=gein(sduc[3].c_str());ram[c]=(ram[a]>ram[b]);}
void les() {c=gein(sduc[1].c_str()),a=gein(sduc[2].c_str()),b=gein(sduc[3].c_str());ram[c]=(ram[a]<ram[b]);}
void _for(){
int a=gein(sduc[1].c_str()),b=gein(sduc[2].c_str()),c=gein(sduc[3].c_str());
index++;
const int temp=index;
for(ram[a]=ram[b];ram[a]<=ram[c];ram[a]++){
while(1){
sduc=opencode(code[index]);
if(sduc[0]=="end"){if(ram[a]<ram[c]) index=temp;break;}
runcode(sduc);
index++;
}
}
return;
}
void forn(){
int a=gein(sduc[1].c_str()),b=atoi(sduc[2].c_str()),c=gein(sduc[3].c_str());
index++;
const int temp=index;
for(ram[a]=b;ram[a]<=ram[c];ram[a]++){
while(1){
sduc=opencode(code[index]);
if(sduc[0]=="end"){if(ram[a]<ram[c]) index=temp;break;}
runcode(sduc);
index++;
}
}
return;
}
void _while(){
int a=gein(sduc[1].c_str());
index++;
const int temp=index;
while(ram[a]){
while(1){
sduc=opencode(code[index]);
if(sduc[0]=="end"){if(ram[a]) index=temp;break;}
runcode(sduc);
index++;
}
}
return;
}
void add_var(){for(size_t i=1;i<sduc.size();i++)var[sduc[i]].push(++varnum);}
void _max(){int c=gein(sduc[1].c_str()),a=gein(sduc[2].c_str()),b=gein(sduc[3].c_str());ram[c]=max(ram[a],ram[b]);}
void _min(){int c=gein(sduc[1].c_str()),a=gein(sduc[2].c_str()),b=gein(sduc[3].c_str());ram[c]=min(ram[a],ram[b]);}
void def(){
string name=sduc[1];funname[name]=index;
int inps=atoi(sduc[2].c_str());
for(int i=1;i<=inps;i++){
string inp=sduc[i+2];
funin[name].push_back(inp);
}
while(1){
sduc=opencode(code[index]);
if(sduc[0]=="endf") break;
index++;
}
}
void run(){
string name=sduc[1];
int inps=funin[name].size(),temp=index,inp;
for(int i=0;i<inps;i++) inp=gein(sduc[i+2].c_str()),var[funin[name][i]].push(++varnum),ram[varnum]=ram[inp];
index=funname[name]+1;
while(1){
sduc=opencode(code[index]);
if(sduc[0]=="endf"||sduc[0]=="return"){
for(int i=0;i<inps;i++) var[funin[name][i]].pop(),varnum--;
break;
}
runcode(sduc);
index++;
}
index=temp;
}
inline void init() {
keywords["fp"]=fp;
keywords["var"]=add_var;
keywords["mio"]=mio;
keywords["mov"]=mov;
keywords["add"]=add;
keywords["sub"]=sub;
keywords["tim"]=tim;
keywords["div"]=div;
keywords["mod"]=mod;
keywords["and"]=_and;
keywords["or"]=_or;
keywords["compl"]=_compl;
keywords["xor"]=_xor;
keywords["rmv"]=rmv;
keywords["lmv"]=lmv;
keywords["jmp"]=jmp;
keywords["sam"]=sam;
keywords["gre"]=gre;
keywords["les"]=les;
keywords["if"]=_if;
keywords["ext"]=ext;
keywords["put"]=put;
keywords["get"]=get;
keywords["putc"]=putc;
keywords["getc"]=getc;
keywords["ext"]=ext;
keywords["for"]=_for;
keywords["forn"]=forn;
keywords["while"]=_while;
keywords["max"]=_max;
keywords["min"]=_min;
keywords["def"]=def;
keywords["run"]=run;
return;
}
vector<string> opencode(string x) {
vector<string>ret;
string s;
for(char i:x)
if(i==' '&&s!="") ret.push_back(s),s="";
else if(i=='#') break;
else s=s+i;
if(s!="")ret.push_back(s);
return ret;
}
int main(int argc, char* argv[]) {
init();
string path,s;
if(argc>1) path=argv[1];
else cin>>path;
system("cls");
ifstream dim(path.c_str());
code.push_back("");
int line=0;
while(getline(dim,s)) {
line++;
code.push_back(s);
if(s[0]==':') jpd[s.substr(1)]=line;
}
for(; index<(int)code.size(); index++) runcode(sduc=opencode(code[index]));
return 0;
}