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    文件類型: .rar
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    發布日期: 2021-05-09
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資源簡介

PL0C.rar

資源截圖

代碼片段和文件信息

/*
*制作者:LCcai
*使用方法:
*運行后輸入PL/0?源程序文件名
*回答是否輸出虛擬機代碼
*回答是否輸出名字表
*fa.tmp?輸出虛擬機代碼
*fa1.tmp??輸出源文件及其各行對應的首地址
*fa2.tmp??輸出結果?
*fas.tmp??輸出名字表
*/

#include
#include“pl0c.h“
#include“string.h“
/*解釋執行時使用的棧*/
#define?stacksize?500
int?main()
{
bool?nxtlev[symnum];
printf(“Input?pl/0?file??“);
scanf(“%s“fname);?????????????????????????????????????/*輸入文件名*/
fin=fopen(fname“r“);
if(fin)
{
printf(“List?object?code??(Y/N)“);????????????????/*是否輸出虛擬機代碼*/
scanf(“%s“fname);
listswitch=(fname[0]==‘y‘||fname[0]==‘Y‘);
printf(“List?symbol?table???(Y/N)“);?????????????/*是否輸出名字表*/
scanf(“%s“fname);
tableswitch=(fname[0]==‘y‘||fname[0]==‘Y‘);
fa1=fopen(“fa1.tmp““w“);
fprintf(fa1“Iput?pl/0?file??“);
fprintf(fa1“%s\n“?fname);
init();??????????????????????????????????????????/*初始化*/
err=0;
cc=cx=ll=0;
ch=‘?‘;
if(-1!=getsym())
{
fa=fopen(“fa.tmp““w“);
fas=fopen(“fas.tmp““w“);
addset(nxtlevdeclbegsysstatbegsyssymnum);
nxtlev[period]=true;????
if(-1==block(00nxtlev)) /*調用編譯程序*/
{
fclose(fa);
fclose(fa1);
fclose(fas);
fclose(fin);
printf(“\n“);
return?0;
}
fclose(fa);
fclose(fa1);
fclose(fas);
if(sym!=period)
{
error(9);
}
if(err==0)
{
fa2=fopen(“fa2.tmp“?“w“);
interpret();
fclose(fa2);
}
else
{
printf(“Errors?in?pl/0?program“);
}
}
fclose(fin);
}
else
{
printf(“Can‘t?open?file!?\n“);
}
printf(“\n“);
return?0;
}

//-----------------------------------------------------------------------------
/*
*初始化
*/
void?init()
{
int?i;
for(i=0;i<=255;i++)
{
ssym[i]=nul;
}

ssym[‘(‘]=lparen;
ssym[‘)‘]=rparen;
ssym[‘=‘]=eql;
ssym[‘‘]=comma;
ssym[‘.‘]=period;
ssym[‘#‘]=neq;
ssym[‘;‘]=semicolon;

/*設置保留字名字按照字母順序便于折半查找*/
strcpy(&(word[0][0])“begin“);
strcpy(&(word[1][0])“call“);
strcpy(&(word[2][0])“const“);
strcpy(&(word[3][0])“do“);
strcpy(&(word[4][0])“else“);
strcpy(&(word[5][0])“end“);
strcpy(&(word[6][0])“for“);
strcpy(&(word[7][0])“if“);
strcpy(&(word[8][0])“odd“);
strcpy(&(word[9][0])“procedure“);
strcpy(&(word[10][0])“read“);
strcpy(&(word[11][0])“repeat“);
strcpy(&(word[12][0])“then“);
strcpy(&(word[13][0])“until“);
strcpy(&(word[14][0])“var“);
strcpy(&(word[15][0])“while“);
strcpy(&(word[16][0])“write“);

/*設置保留字符號*/
wsym[0]=beginsym;
wsym[1]=callsym;
wsym[2]=constsym;
wsym[3]=dosym;
wsym[4]=elsesym;
wsym[5]=endsym;
wsym[6]=forsym;
wsym[7]=ifsym;
wsym[8]=oddsym;
wsym[9]=procsym;
wsym[10]=readsym;
wsym[11]=repeatsym;
wsym[12]=thensym;
wsym[13]=untilsym;
wsym[14]=varsym;
wsym[15]=whilesym;
wsym[16]=writesym;

/*設置指令名稱*/
strcpy(&(mnemonic[lit][0])“lit“);
strcpy(&(mnemonic[opr][0])“opr“);
strcpy(&(mnemonic[lod][0])“lod“);
strcpy(&(mnemonic[sto][0])“sto“);
strcpy(&(mnemonic[cal][0])“cal“);
s

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????235??2008-04-24?09:59??PL0C\Debug\fa.tmp

?????文件????????152??2008-04-24?09:59??PL0C\Debug\fa1.tmp

?????文件?????????14??2008-04-24?09:59??PL0C\Debug\fa2.tmp

?????文件?????????73??2008-04-24?09:59??PL0C\Debug\fas.tmp

?????文件??????74752??2008-04-24?23:57??PL0C\Debug\PL0C.bsc

?????文件?????213038??2008-04-24?23:57??PL0C\Debug\PL0C.exe

?????文件?????219104??2008-04-24?23:57??PL0C\Debug\PL0C.ilk

?????文件??????68651??2008-04-24?23:57??PL0C\Debug\pl0c.obj

?????文件?????223860??2008-04-24?23:55??PL0C\Debug\PL0C.pch

?????文件?????533504??2008-04-24?23:57??PL0C\Debug\PL0C.pdb

?????文件??????????0??2008-04-24?23:57??PL0C\Debug\pl0c.sbr

?????文件??????33792??2008-04-24?23:57??PL0C\Debug\vc60.idb

?????文件??????53248??2008-04-24?23:57??PL0C\Debug\vc60.pdb

?????文件????????271??2008-04-24?23:57??PL0C\fa.tmp

?????文件????????173??2008-04-24?23:57??PL0C\fa1.tmp

?????文件?????????19??2008-04-24?23:58??PL0C\fa2.tmp

?????文件????????135??2008-04-24?23:57??PL0C\fas.tmp

?????文件??????38711??2008-04-27?19:59??PL0C\pl0c.cpp

?????文件???????4323??2008-03-03?21:42??PL0C\PL0C.dsp

?????文件????????514??2008-03-03?21:42??PL0C\PL0C.dsw

?????文件???????5984??2008-04-16?15:35??PL0C\pl0c.h

?????文件??????50176??2008-04-24?23:58??PL0C\PL0C.ncb

?????文件??????53760??2008-04-24?23:58??PL0C\PL0C.opt

?????文件???????1387??2008-04-24?23:57??PL0C\PL0C.plg

?????文件?????????80??2008-04-24?11:32??PL0C\Test\add-minus.txt

?????文件????????115??2008-04-24?23:57??PL0C\Test\array-complex.txt

?????文件?????????98??2008-04-16?15:36??PL0C\Test\array-error.txt

?????文件?????????67??2008-04-24?10:59??PL0C\Test\array.txt

?????文件????????124??2008-03-20?09:09??PL0C\Test\becomes.txt

?????文件????????212??2008-03-17?12:50??PL0C\Test\call.txt

............此處省略13個文件信息

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