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paramtable.cpp
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#include "paramtable.h"
void ParamTable::initAll()
{
#ifdef DEBUG
cout << "initAll" << endl;
#endif
synb.clear();
pfinf.clear();
synbl newS;
pfinfl newP;
newS.name = -1;
newS.cat = 'f';
newP.level = 0;
newP.off = 0;
newP.fn = 0;
newP.elems.clear();
newP.param.clear();
pfinf.push_back(newP);
newS.addr = pfinf.size() - 1;
synb.push_back(newS);
while (!Funcs.empty())
Funcs.pop();
Funcs.push(synb[synb.size() - 1].addr);
size_tmp = 0;
elems.clear();
table_synb.clear();
table_pfinf.clear();
table_cons.clear();
table_ainf.clear();
beginidx_id_tmp = 100;
id_tmp = beginidx_id_tmp; //临时变量的开始值，正常变量数大于100时需要修改这个值
memset(inalNums, 0, sizeof(inalNums));
}
void ParamTable::addFun(int id)
{
#ifdef DEBUG
cout << "addFun" << ' ' << id << endl;
#endif
synbl newS;
pfinfl newP;
newS.name = id;
newS.cat = 'f';
newP.level = pfinf[Funcs.top()].level + 1;
newP.off = size_pfinfl;
newP.fn = 0;
newP.param.clear();
newP.synbs.clear();
newP.elems.clear();
newP.entry = synb.size();
pfinf.push_back(newP);
newS.addr = pfinf.size() - 1;
synb.push_back(newS);
table_pfinf.insert(make_pair(id, synb.size() - 1));
pfinf[Funcs.top()].synbs.push_back(synb.size() - 1);
pfinf[Funcs.top()].elems.push_back(elems.size());
Funcs.push(synb[synb.size() - 1].addr);
elems.push_back(elem("fun", id, -1, -1));
}
void ParamTable::backFun()
{
#ifdef DEBUG
cout << "backFun" << endl;
#endif
Funcs.pop();
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("funend", -1, -1, -1));
}
void ParamTable::addNum(int id, bool isparam)
{
#ifdef DEBUG
cout << "addNum" << ' ' << id << ' ' << isparam << endl;
#endif
for (int i = 0; i < pfinf[Funcs.top()].synbs.size(); i++)
if (synb[pfinf[Funcs.top()].synbs[i]].name == id)
{
if (id < 100)
{
haveErr = true;
errMessagePT = "Error! redeclaration of 'int " + to_string(id) + "'";
#ifdef DEBUG
cout << "error: redeclaration of 'int " << id << "'" << endl;
#endif
}
return;
}
synbl newS;
newS.name = id;
newS.cat = 'i';
synb.push_back(newS);
if (isparam)
pfinf[Funcs.top()].param.push_back(synb.size() - 1);
else
pfinf[Funcs.top()].synbs.push_back(synb.size() - 1);
}
void ParamTable::addArray(int id, int len, bool isparam)
{
#ifdef DEBUG
cout << "addArray" << ' ' << id << endl;
#endif
for (int i = 0; i < pfinf[Funcs.top()].synbs.size(); i++)
if (synb[pfinf[Funcs.top()].synbs[i]].name == id)
{
haveErr = true;
errMessagePT = "Error! redeclaration of 'int* " + to_string(id) + "'";
#ifdef DEBUG
cout << "error: redeclaration of 'int* " << id << "'" << endl;
#endif
return;
}
synbl newS;
ainfl newA;
newS.name = id;
newS.cat = 'l';
newA.low = id_tmp;
table_ainf.insert(make_pair(id_tmp, 1984));
newA.up = id_tmp + len - 1;
ainf.push_back(newA);
newS.addr = ainf.size() - 1;
table_ainf.insert(make_pair(id, synb.size()));
synb.push_back(newS);
if (isparam)
pfinf[Funcs.top()].param.push_back(synb.size() - 1);
else
{
pfinf[Funcs.top()].synbs.push_back(synb.size() - 1);
for (int i = 1; i <= len; i++)
{
addNum(id_tmp);
inalNums[id_tmp] = 1;
id_tmp++;
}
}
}
void ParamTable::addCon(int id, int data)
{
#ifdef DEBUG
cout << "addCon" << endl;
#endif
synbl newS;
consl newC;
newS.name = id;
newS.cat = 'c';
newC.data = data;
cons.push_back(newC);
newS.addr = cons.size() - 1;
synb.push_back(newS);
table_cons.insert(make_pair(id, data));
}
void ParamTable::alGeq(string op)
{
#ifdef DEBUG
cout << "alGeq" << ' ' << op << endl;
#endif
int id1, id2, diffid1 = -1, diffid2 = -1;
if (alNums.empty())
{
haveErr = true;
errMessagePT = "Error! invalid expression";
#ifdef DEBUG
cout << "error: invalid expression" << endl;
#endif
return;
}
id1 = alNums.top();
alNums.pop();
if (table_ainf.count(id1))
{
diffid1 = alNums.top();
alNums.pop();
id1 = ainf[synb[table_ainf[id1]].addr].low;
}
if (alNums.empty())
{
haveErr = true;
errMessagePT = "Error! invalid expression";
#ifdef DEBUG
cout << "error: invalid expression" << endl;
#endif
return;
}
id2 = alNums.top();
alNums.pop();
if (table_ainf.count(id2))
{
diffid2 = alNums.top();
alNums.pop();
id2 = ainf[synb[table_ainf[id2]].addr].low;
}
#ifdef DEBUG
cout << id1 << ' ' << id2 << endl;
#endif
if (op == "=")
{
if (diffid1 != -1)
{
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("arr1", -1, -1, diffid1));
}
if (diffid2 != -1)
{
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("arr2", -1, -1, diffid2));
}
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem(op, id1, -1, id2));
alNums.push(id2);
}
else
{
if (diffid2 != -1)
{
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("arr1", -1, -1, diffid2));
}
if (diffid1 != -1)
{
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("arr2", -1, -1, diffid1));
}
pfinf[Funcs.top()].elems.push_back(elems.size());
//if (min(id1, id2) >= beginidx_id_tmp) //减少临时变量开销
// id_tmp = min(id1, id2);
//else if (max(id1, id2) >= beginidx_id_tmp)
// id_tmp = max(id1, id2);
//else
addNum(id_tmp);
elems.push_back(elem(op, id2, id1, id_tmp));
alNums.push(id_tmp);
inalNums[id_tmp] = 1;
#ifdef DEBUG
cout << "push " << alNums.top() << endl;
#endif
id_tmp++;
}
}
void ParamTable::alPush(int id, bool isarray)
{ //之后要加一堆处理
#ifdef DEBUG
cout << "alPush" << ' ' << id << endl;
#endif
if (!isarray)
alNums.push(id);
else
{
alNums.push(id);
}
}
void ParamTable::alPop()
{
#ifdef DEBUG
cout << "alPop" << endl;
#endif
if (alNums.empty())
{
haveErr = true;
errMessagePT = "Error! alPop error";
#ifdef DEBUG
cout << "error: alPop error" << endl;
#endif
return;
}
alNums.pop();
}
void ParamTable::exIf()
{
#ifdef DEBUG
cout << "exIf" << endl;
#endif
if (alNums.empty())
{
haveErr = true;
errMessagePT = "Error! expected primary-expression before ')' token";
#ifdef DEBUG
cout << "error: expected primary-expression before ')' token" << endl;
#endif
return;
}
int id1;
id1 = alNums.top();
alNums.pop();
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("if", id1, -1, -1));
}
void ParamTable::exIe()
{
#ifdef DEBUG
cout << "exIe" << endl;
#endif
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("ie", -1, -1, -1));
}
void ParamTable::exEl()
{
#ifdef DEBUG
cout << "exEl" << endl;
#endif
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("el", -1, -1, -1));
}
void ParamTable::exWh()
{
#ifdef DEBUG
cout << "exWh" << endl;
#endif
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("wh", -1, -1, -1));
}
void ParamTable::exDo()
{
#ifdef DEBUG
cout << "exDo" << endl;
#endif
if (alNums.empty())
{
haveErr = true;
errMessagePT = "Error! expected primary-expression before ')' token";
#ifdef DEBUG
cout << "error: expected primary-expression before ')' token" << endl;
#endif
return;
}
int id1;
id1 = alNums.top();
alNums.pop();
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("do", id1, -1, -1));
}
void ParamTable::exWe()
{
#ifdef DEBUG
cout << "exWe" << endl;
#endif
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("we", -1, -1, -1));
}
void ParamTable::exIn()
{
#ifdef DEBUG
cout << "exIn" << endl;
#endif
int id0, diffid0 = -1;
pfinf[Funcs.top()].elems.push_back(elems.size());
id0 = alNums.top();
alNums.pop();
if (table_ainf.count(id0))
{
diffid0 = alNums.top();
alNums.pop();
id0 = ainf[synb[table_ainf[id0]].addr].low;
}
elems.push_back(elem("in", diffid0, -1, id0));
}
void ParamTable::exOut()
{
#ifdef DEBUG
cout << "exOut" << endl;
#endif
int id0, diffid0 = -1;
pfinf[Funcs.top()].elems.push_back(elems.size());
id0 = alNums.top();
alNums.pop();
if (table_ainf.count(id0))
{
diffid0 = alNums.top();
alNums.pop();
id0 = ainf[synb[table_ainf[id0]].addr].low;
}
elems.push_back(elem("out", diffid0, -1, id0));
}
void ParamTable::callBegin(int id)
{
#ifdef DEBUG
cout << "callBegin" << ' ' << id << endl;
#endif
if (!table_pfinf.count(id))
{
haveErr = true;
errMessagePT = "Error! function was not declared in this scope";
#ifdef DEBUG
cout << "error: '"
<< "' was not declared in this scope" << endl;
#endif
throw "callError";
return;
}
calls.push(id);
callParams.push(0);
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("call", id, id_tmp, -1));
addNum(id_tmp);
alNums.push(id_tmp);
inalNums[id_tmp] = 1;
id_tmp++;
}
void ParamTable::callEnd()
{
#ifdef DEBUG
cout << "callEnd" << endl;
#endif
if (calls.empty() || callParams.empty())
{
haveErr = true;
errMessagePT = "Error! internal error in callEnd";
#ifdef DEBUG
cout << "internal error in callEnd" << endl;
#endif
return;
}
if (callParams.top() < pfinf[synb[table_pfinf[calls.top()]].addr].param.size())
{
haveErr = true;
errMessagePT = "Error! too few arguments to function";
#ifdef DEBUG
cout << "error: too few arguments to function '"
<< "'" << endl;
#endif
return;
}
else if (callParams.top() > pfinf[synb[table_pfinf[calls.top()]].addr].param.size())
{
haveErr = true;
errMessagePT = "Error! too many arguments to function";
#ifdef DEBUG
cout << "error: too many arguments to function '"
<< "'" << endl;
#endif
return;
}
calls.pop();
callParams.pop();
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("callend", -1, -1, -1));
}
void ParamTable::callParam()
{
#ifdef DEBUG
cout << "callParam" << endl;
#endif
if (alNums.empty())
{
haveErr = true;
errMessagePT = "Error! expected primary-expression before ')' token";
#ifdef DEBUG
cout << "error: expected primary-expression before ')' token" << endl;
#endif
return;
}
int id1, diffid1 = -1;
id1 = alNums.top();
alNums.pop();
if (table_ainf.count(id1))
{
diffid1 = alNums.top();
alNums.pop();
id1 = ainf[synb[table_ainf[id1]].addr].low;
}
int num;
num = callParams.top();
callParams.pop();
callParams.push(++num);
if(diffid1!=-1)
{
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("arr1", -1, -1, diffid1));
}
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("params", -1, -1, id1));
}
void ParamTable::retNum()
{
int id1;
id1 = alNums.top();
alNums.pop();
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("retnum", -1, -1, id1));
}
void ParamTable::retNonum()
{
pfinf[Funcs.top()].elems.push_back(elems.size());
elems.push_back(elem("ret", -1, -1, -1));
}
void ParamTable::genValls() //生成活动记录表
{
basicValls.clear();
vall nowvall;
int i, sum, k;
for (k = 0; k < pfinf.size(); k++)
{
nowvall.var.clear();
nowvall.par.clear();
nowvall.size = 0;
sum = 0;
for (i = 0; i < pfinf[k].param.size(); i++)
{
nowvall.par.insert(make_pair(synb[pfinf[k].param[i]].name, sum));
nowvall.var.insert(make_pair(synb[pfinf[k].param[i]].name, sum));
sum += 2;
}
nowvall.parsize = sum;
sum += 2; //为call内的ip留个位置
for (i = 0; i < pfinf[k].synbs.size(); i++)
{
nowvall.var.insert(make_pair(synb[pfinf[k].synbs[i]].name, sum));
sum += 2;
/*if (synb[pfinf[k].synbs[i]].cat == 'l')
{
sum += 2 * (ainf[synb[pfinf[k].synbs[i]].addr].up - ainf[synb[pfinf[k].synbs[i]].addr].low);
}*/
}
nowvall.size = sum;
basicValls.push_back(nowvall);
}
}
void ParamTable::gen4elem() //处理四元式的if，while等语句的跳转位置，四元式优化，并输出四元式用来调试
{
#ifdef DEBUG
cout << "wow we are generating elems!" << endl;
#endif
for (int i = 0; i < synb.size(); i++)
{
table_synb.insert(make_pair(synb[i].name, i));
}
table_synb[-1] = -1;
stack<int> sem;
int i, j, k;
while (!sem.empty())
sem.pop();
for (i = 0; i < elems.size(); i++)
{
if (elems[i].st == "if")
sem.push(i);
if (elems[i].st == "el")
{
elems[sem.top()].id0 = i + 1;
elems[i + 1].needtag = true;
sem.pop();
sem.push(i);
}
if (elems[i].st == "ie")
{
elems[sem.top()].id0 = i + 1;
elems[i + 1].needtag = true;
sem.pop();
}
if (elems[i].st == "wh")
sem.push(i);
if (elems[i].st == "do")
sem.push(i);
if (elems[i].st == "we")
{
elems[sem.top()].id0 = i + 1;
elems[i + 1].needtag = true;
sem.pop();
elems[i].id0 = sem.top() + 1;
elems[sem.top() + 1].needtag = true;
sem.pop();
}
}
vector<int> tmpelems;
int iscons[1000], used[1000], lastmodify[1000]; //是否现在是常数/是否被使用了（否则就是垃圾语句）/上次修改位置
map<pair<int, int>, pair<int, int>> oldtonew; //<id1,id2>-><id0,location>
map<int, pair<int, int>> newtoold;
elem tmpelem("", -1, -1, -1);
int piecel, piecer, l, r, num;
for (k = 1; k < pfinf.size(); k++) //常数表达式优化(含常数推进)
{
memset(iscons, 255, sizeof(iscons));
for (i = 0; i < pfinf[k].elems.size(); i++)
{
tmpelem = elems[pfinf[k].elems[i]];
if (tmpelem.iscntop())
{
if ((table_cons.count(tmpelem.id1) || iscons[tmpelem.id1] != -1) && (table_cons.count(tmpelem.id2) || iscons[tmpelem.id2] != -1))
{
if (iscons[tmpelem.id1] != -1)
l = iscons[tmpelem.id1];
else
l = table_cons[tmpelem.id1];
if (iscons[tmpelem.id2] != -1)
r = iscons[tmpelem.id2];
else
r = table_cons[tmpelem.id2];
if (tmpelem.st == "+")
num = l + r;
else if (tmpelem.st == "-")
num = l - r;
else if (tmpelem.st == "*")
num = l * r;
else if (tmpelem.st == "/")
num = l / r;
elems[pfinf[k].elems[i]] = elem("=", id_tmp, -1, tmpelem.id0);
addCon(id_tmp, num);
id_tmp++;
iscons[tmpelem.id0] = num;
}
else
iscons[tmpelem.id0] = -1;
}
else
{
if (tmpelem.st == "=")
{
if (table_cons.count(tmpelem.id1) || iscons[tmpelem.id1] != -1)
{
if (iscons[tmpelem.id1] != -1)
l = iscons[tmpelem.id1];
else
l = table_cons[tmpelem.id1];
iscons[tmpelem.id0] = l;
}
else
{
iscons[tmpelem.id0] = -1;
}
}
else
memset(iscons, 255, sizeof(iscons));
}
}
}
for (k = 1; k < pfinf.size(); k++) //dag优化
{
memset(used, 255, sizeof(used));
memset(lastmodify, 255, sizeof(lastmodify));
oldtonew.clear();
newtoold.clear();
for (i = 0; i < pfinf[k].elems.size(); i++)
{
tmpelem = elems[pfinf[k].elems[i]];
if (tmpelem.iscntop() || tmpelem.st == "=" || tmpelem.st == "arr1" || tmpelem.st == "arr2")
{
if (tmpelem.iscntop())
{
if (tmpelem.id1 != tmpelem.id0 && tmpelem.id2 != tmpelem.id0 && lastmodify[tmpelem.id0] != -1 && used[tmpelem.id0] < lastmodify[tmpelem.id0]) //如果上次修改后到现在未使用过，删除上次对应的四元式
{
elems[pfinf[k].elems[lastmodify[tmpelem.id0]]] = elem("deleted", -1, -1, tmpelem.id0);
oldtonew.erase(make_pair(tmpelem.id1, tmpelem.id2));
if (tmpelem.st == "+" || tmpelem.st == "*")
oldtonew.erase(make_pair(tmpelem.id2, tmpelem.id1));
}
if (oldtonew.count(make_pair(tmpelem.id1, tmpelem.id2))) //之前有过同样的表达式且目标变量未改变过时直接复用
{
int location = oldtonew[make_pair(tmpelem.id1, tmpelem.id2)].second;
int newid = oldtonew[make_pair(tmpelem.id1, tmpelem.id2)].first;
if (location > lastmodify[tmpelem.id1] && location > lastmodify[tmpelem.id2])
{
elems[pfinf[k].elems[i]] = elem("=", newid, -1, tmpelem.id0);
used[newid] = i;
lastmodify[tmpelem.id0] = i;
}
}
else
{
used[tmpelem.id1] = used[tmpelem.id2] = i;
lastmodify[tmpelem.id0] = i;
oldtonew.insert(make_pair(make_pair(tmpelem.id1, tmpelem.id2), make_pair(tmpelem.id0, i)));
if (tmpelem.st == "+" || tmpelem.st == "*")
oldtonew.insert(make_pair(make_pair(tmpelem.id2, tmpelem.id1), make_pair(tmpelem.id0, i)));
}
}
else if (tmpelem.st == "=")
{
if (lastmodify[tmpelem.id0] != -1 && used[tmpelem.id0] < lastmodify[tmpelem.id0]) //如果上次修改后到现在未使用过，删除上次对应的四元式
{
elems[pfinf[k].elems[lastmodify[tmpelem.id0]]] = elem("deleted", tmpelem.id1, -1, tmpelem.id0);
}
used[tmpelem.id1] = i;
lastmodify[tmpelem.id0] = i;
}
else
{
used[tmpelem.id0] = i;
}
}
else
{
memset(used, 255, sizeof(used));
memset(lastmodify, 255, sizeof(lastmodify));
oldtonew.clear();
newtoold.clear();
}
}
}
int idx;
for (i = 0; i < elems.size(); i++) //初始化活跃信息表
{
qt[0].push_back(true);
qt[1].push_back(true);
qt[2].push_back(true);
}
for (k = 1; k < pfinf.size(); k++) //计算活跃信息
{
for (i = 0; i < pfinf[k].elems.size(); i++)
{
tmpelem = elems[pfinf[k].elems[i]];
idx = pfinf[k].elems[i];
if (tmpelem.iscntop() || tmpelem.st == "=" || tmpelem.st == "arr1" || tmpelem.st == "arr2")
{
if (tmpelem.iscntop())
{
qt[0][idx] = symbl[tmpelem.id0];
symbl[tmpelem.id0] = false;
qt[1][idx] = symbl[tmpelem.id1];
symbl[tmpelem.id1] = true;
qt[2][idx] = symbl[tmpelem.id2];
symbl[tmpelem.id2] = true;
}
else if (tmpelem.st == "=")
{
qt[0][idx] = symbl[tmpelem.id0];
symbl[tmpelem.id0] = false;
qt[1][idx] = symbl[tmpelem.id1];
symbl[tmpelem.id1] = true;
}
else
{
qt[0][idx] = symbl[tmpelem.id0];
symbl[tmpelem.id0] = true;
}
}
else
{
memset(symbl, 0, sizeof(symbl));
for (j = 0; j < 100; j++)
symbl[i] = true;
}
}
}
#ifdef DEBUG
for (i = 0; i < elems.size(); i++)
{
printf("%d: ", i);
elems[i].output();
}
#endif
}
void ParamTable::outputParam()
{ //输出参数表内容
int i, j;
printf("-----synbl-----\n");
printf("name--cat--addr\n");
for (i = 0; i < synb.size(); i++)
{
printf("%d: %d %c %d\n", i, synb[i].name, synb[i].cat, synb[i].addr);
}
printf("\n-----ainfl-----\n");
printf("low-----up\n");
for (i = 0; i < ainf.size(); i++)
{
printf("%d: %d %d\n", i, ainf[i].low, ainf[i].up);
}
printf("\n-----consl-----\n");
printf("data\n");
for (i = 0; i < cons.size(); i++)
{
printf("%d: %d\n", i, cons[i].data);
}
printf("\n-----pfinfl-----\n");
printf("synbs-----param\n");
for (i = 0; i < pfinf.size(); i++)
{
printf("params: ");
for (j = 0; j < pfinf[i].param.size(); j++)
printf("%d ", pfinf[i].param[j]);
printf("\nsynbs: ");
for (j = 0; j < pfinf[i].synbs.size(); j++)
printf("%d ", pfinf[i].synbs[j]);
printf("\n");
}
map<int, int>::iterator it;
printf("\n-----vall-----\n");
printf("par---var---size\n");
for (i = 0; i < basicValls.size(); i++)
{
printf("par");
for (it = basicValls[i].par.begin(); it != basicValls[i].par.end(); it++)
printf("(%d-%d) ", it->first, it->second);
printf("\nvar");
for (it = basicValls[i].var.begin(); it != basicValls[i].var.end(); it++)
printf("(%d-%d) ", it->first, it->second);
printf("\nsize");
printf("%d\n", basicValls[i].size);
}
}
void ParamTable::toax(int k, int id, int diffid) //输出到从内存提取到ax的汇编指令
{
if (locra == id && locradiff == diffid) //考虑要找的数据已经在寄存器的情况
return;
if (locrc == id && locrcdiff == diffid)
{
locra = id;
locradiff = diffid;
assemblyRes.push_back("MOV AX,CX");
return;
}
locra = id;
locradiff = diffid;
if (table_cons.count(id)) //为常数
{
//cout << "MOV AX," << table_cons[id] << endl;
assemblyRes.push_back("MOV AX," + to_string(table_cons[id]));
}
else if (basicValls[k].var.count(id)) //考虑是局部变量还是全局变量
{
id = basicValls[k].var[id];
if (diffid == -1)
//cout << "MOV AX,[BP-" << id + 2 << "]" << endl;
assemblyRes.push_back("MOV AX,[BP-" + to_string(id + 2) + "]");
else //为数组，考虑偏移量是否是全局变量
{
if (table_cons.count(diffid))
{
//cout << "MOV SI," << table_cons[diffid] << endl;
assemblyRes.push_back("MOV SI," + to_string(table_cons[diffid]));
}
else if (basicValls[0].var.count(diffid))
{
diffid = basicValls[0].var[diffid];
//cout << "MOV SI,[BX+" << diffid << "]" << endl;
assemblyRes.push_back("MOV SI,[BX+" + to_string(diffid) + "]");
}
else
{
diffid = basicValls[k].var[diffid];
//cout << "MOV SI,[BP-" << diffid + 2 << "]" << endl;
assemblyRes.push_back("MOV SI,[BP-" + to_string(diffid + 2) + "]");
}
//cout << "SHL SI,1" << endl;
//cout << "NEG SI" << endl;
//cout << "MOV AX,[BP+SI-" << id + 2 << "]" << endl;
assemblyRes.push_back("SHL SI,1");
assemblyRes.push_back("NEG SI");
assemblyRes.push_back("MOV AX,[BP+SI-" + to_string(id + 2) + "]");
}
}
else
{
id = basicValls[0].var[id];
if (diffid == -1)
//cout << "MOV AX,[BX+" << id << "]" << endl;
assemblyRes.push_back("MOV AX,[BX+" + to_string(id) + "]");
else //为数组，考虑偏移量是否是全局变量
{
if (table_cons.count(diffid))
{
//cout << "MOV DI," << table_cons[diffid] << endl;
assemblyRes.push_back("MOV DI," + to_string(table_cons[diffid]));
}
else if (basicValls[0].var.count(diffid))
{
diffid = basicValls[0].var[diffid];
//cout << "MOV DI,[BX+" << diffid << "]" << endl;
assemblyRes.push_back("MOV DI,[BX+" + to_string(diffid) + "]");
}
else
{
diffid = basicValls[k].var[diffid];
//cout << "MOV DI,[BP-" << diffid + 2 << "]" << endl;
assemblyRes.push_back("MOV DI,[BP-" + to_string(diffid + 2) + "]");
}
//cout << "SHL DI,1" << endl;
//cout << "MOV AX,[BX+DI+" << id << "]" << endl;
assemblyRes.push_back("SHL DI,1");
assemblyRes.push_back("MOV AX,[BX+DI+" + to_string(id) + "]");
}
}
}
void ParamTable::tocx(int k, int id, int diffid) //输出到从内存提取到ax的汇编指令
{
if (locrc == id && locrcdiff == diffid) //考虑要找的数据已经在寄存器的情况
return;
if (locra == id && locradiff == diffid)
{
locrc = id;
locrcdiff = diffid;
assemblyRes.push_back("MOV CX,AX");
return;
}
locrc = id;
locrcdiff = diffid;
if (table_cons.count(id))
{
//cout << "MOV CX," << table_cons[id] << endl;
assemblyRes.push_back("MOV CX," + to_string(table_cons[id]));
}
else if (basicValls[k].var.count(id)) //考虑是局部变量还是全局变量
{
id = basicValls[k].var[id];
if (diffid == -1)
//cout << "MOV CX,[BP-" << id + 2 << "]" << endl;
assemblyRes.push_back("MOV CX,[BP-" + to_string(id + 2) + "]");
else //为数组，考虑偏移量是否是全局变量
{
if (table_cons.count(diffid))
{
//cout << "MOV SI," << table_cons[diffid] << endl;
assemblyRes.push_back("MOV SI," + to_string(table_cons[diffid]));
}
else if (basicValls[0].var.count(diffid))
{
diffid = basicValls[0].var[diffid];
//cout << "MOV SI,[BX+" << diffid << "]" << endl;
assemblyRes.push_back("MOV SI,[BX+" + to_string(diffid) + "]");
}
else
{
diffid = basicValls[k].var[diffid];
//cout << "MOV SI,[BP-" << diffid + 2 << "]" << endl;
assemblyRes.push_back("MOV SI,[BP-" + to_string(diffid + 2) + "]");
}
//cout << "SHL SI,1" << endl;
//cout << "NEG SI" << endl;
//cout << "MOV CX,[BP+SI-" << id + 2 << "]" << endl;
assemblyRes.push_back("SHL SI,1");
assemblyRes.push_back("NEG SI");
assemblyRes.push_back("MOV CX,[BP+SI-" + to_string(id + 2) + "]");
}
}
else
{
id = basicValls[0].var[id];
if (diffid == -1)
//cout << "MOV CX,[BX+" << id << "]" << endl;
assemblyRes.push_back("MOV CX,[BX+" + to_string(id) + "]");
else //为数组，考虑偏移量是否是全局变量
{
if (table_cons.count(diffid))
{
//cout << "MOV DI," << table_cons[diffid] << endl;
assemblyRes.push_back("MOV DI," + to_string(table_cons[diffid]));
}
else if (basicValls[0].var.count(diffid))
{
diffid = basicValls[0].var[diffid];
//cout << "MOV DI,[BX+" << diffid << "]" << endl;
assemblyRes.push_back("MOV DI,[BX+" + to_string(diffid) + "]");
}
else
{
diffid = basicValls[k].var[diffid];
//cout << "MOV DI,[BP-" << diffid + 2 << "]" << endl;
assemblyRes.push_back("MOV DI,[BP-" + to_string(diffid + 2) + "]");
}
//cout << "SHL DI,1" << endl;
//cout << "MOV CX,[BX+DI+" << id << "]" << endl;
assemblyRes.push_back("SHL DI,1");
assemblyRes.push_back("MOV CX,[BX+DI+" + to_string(id) + "]");
}
}
}
void ParamTable::axto(int k, int id, int diffid) //输出到从ax提取到内存的汇编指令
{
if (table_cons.count(id))
{
//cout << "MOV CX," << table_cons[id] << endl;
assemblyRes.push_back("MOV CX," + to_string(table_cons[id]));
}
else if (basicValls[k].var.count(id)) //考虑是局部变量还是全局变量
{
id = basicValls[k].var[id];
if (diffid == -1)
//cout << "MOV [BP-" << id + 2 << "],AX" << endl;
assemblyRes.push_back("MOV [BP-" + to_string(id + 2) + "],AX");
else //为数组，考虑偏移量是否是全局变量
{
if (table_cons.count(diffid))
{
//cout << "MOV SI," << table_cons[diffid] << endl;
assemblyRes.push_back("MOV SI," + to_string(table_cons[diffid]));
}
else if (basicValls[0].var.count(diffid))
{
diffid = basicValls[0].var[diffid];
//cout << "MOV SI,[BX+" << diffid << "]" << endl;
assemblyRes.push_back("MOV SI,[BX+" + to_string(diffid) + "]");
}
else
{
diffid = basicValls[k].var[diffid];
//cout << "MOV SI,[BP-" << diffid + 2 << "]" << endl;
assemblyRes.push_back("MOV SI,[BP-" + to_string(diffid + 2) + "]");
}
//cout << "SHL SI,1" << endl;
//cout << "NEG SI" << endl;
//cout << "MOV [BP+SI-" << id + 2 << "],AX" << endl;
assemblyRes.push_back("SHL SI,1");
assemblyRes.push_back("NEG SI");
assemblyRes.push_back("MOV [BP+SI-" + to_string(id + 2) + "],AX");
}
}
else
{
id = basicValls[0].var[id];
if (diffid == -1)
//cout << "MOV [BX+" << id << "],AX" << endl;
assemblyRes.push_back("MOV [BX+" + to_string(id) + "],AX");
else //为数组，考虑偏移量是否是全局变量
{