📄 assembler.cpp
字号:
if(State==5) {State=5;break;}
return -1;
}
case ' ':
case '\t':
// case '\n':
{
if(State==5)
{ret[--i]='\0';TOKEN.TokenID=3;TOKEN.TokenName=ret;return 0;}
if(State==4)
{TOKEN.TokenID=1;TOKEN.TokenName="DATA";return 0;}
return -1;
}
default:
{
if(((ch>='a'&&ch<='z')||(ch>='A'&&ch<='Z'))&&(State==0))
{State=5;break;}
if(((ch>='0'&&ch<='9')||(ch>='a'&&ch<='z')||(ch>='A'&&ch<='Z'))&&(State==5||State==1||State==2||State==3||State==4))
{State=5;break;}
return -1;
}
}
}
break;
}
case 10: //当前栈顶符号为<N_CODE>
case 11: //当前栈顶符号为<N_CODE SEG>
case 20: //当前栈顶符号为<N_CODE ENDS>
{ //应该扫描CODE单词
char ch = ReadOneChar(SourceFileName);
if ( ch == '\n' )
No_TxtLine++;
while ( 1 )
{
switch ( ch )
{
case 'c':
case 'C':
{
if(State==0) {State=1;break;}
else return -1;
}
case 'o':
case 'O':
{
if(State==1) {State=2;break;}
else return -1;
}
case 'd':
case 'D':
{
if(State==2) {State=3;break;}
else return -1;
}
case 'e':
case 'E':
{
if(State==3) {State=4;break;}
else return -1;
}
case ' ':
case '\t':
// case '\n':
{
if(State==4){TOKEN.TokenID=4;TOKEN.TokenName="CODE";return 0;}
else return -1;
}
default: return -1;
}
ch = getc(SourceFileName);
if ( ch == '\n' )
No_TxtLine++;
}
break;
}
case 12: //当前栈顶符号为<N_ORG_CODE>
{ //扫描ORG_CODE
char ch = ReadOneChar(SourceFileName);
if ( ch == '\n' )
No_TxtLine++;
while ( 1 )
{
switch ( ch )
{
case 'o':
case 'O':
{
if(State==0) {State=1;break;}
if(State==5) {State=6;break;}
else return -1;
}
case 'r':
case 'R':
{
if(State==1) {State=2;break;}
else return -1;
}
case 'g':
case 'G':
{
if(State==2) {State=3;break;}
else return -1;
}
case '_':
{
if(State==3) {State=4;break;}
else return -1;
}
case 'c':
case 'C':
{
if(State==4) {State=5;break;}
else return -1;
}
case 'd':
case 'D':
{
if(State==6) {State=7;break;}
else return -1;
}
case 'e':
case 'E':
{
if(State==7) {State=8;break;}
else return -1;
}
case ' ':
case '\t':
// case '\n':
{
if(State==8){TOKEN.TokenID=5;TOKEN.TokenName="ORG_CODE";return 0;}
else return -1;
}
default:return -1;
}
ch = getc(SourceFileName);
if ( ch == '\n' )
No_TxtLine++;
}
break;
}
case 15: //当前栈顶符号为<N_ORDER>
{ //扫描RCOM,SROM,SLLROM,ICOM,SICOM,LWICOM,JCOM,NOP,ORG_CODE
i = 0;
times = 0; //统计每次循环No_TxtLine加了多少，回退时要用到
int Length = ftell(SourceFileName);
char ch = ReadOneChar(SourceFileName);
if ( ch == '\n' )
{
No_TxtLine++;
times = 1;
}
ret[i++] = ch;
/**********************SRCOM**************************/
while ( 1 )
{
switch ( ch )
{
case 'j':
case 'J': if(State==0){State=1;break;} else{State=-1;break;}
case 'r':
case 'R': if(State==1){State=2;break;} else{State=-1;break;}
case ' ':
// case '\n':
case '\t': if(State==2)
{ret[--i]='\0';TOKEN.TokenID=7;TOKEN.TokenName=ret;return 0;}
else
{State=-1;break;}
default: {State=-1;break;}
}
if ( State == -1 )
break;
ch = getc(SourceFileName);
if ( ch == '\n' )
{
No_TxtLine++;
times++;
}
ret[i++] = ch;
}
rewind(SourceFileName);
if ( fseek(SourceFileName, Length, SEEK_CUR) == 1 )
return -1;
i = 0;
ch = ReadOneChar(SourceFileName);
No_TxtLine -= times;
times = 0;
if ( ch == '\n' )
{
No_TxtLine++;
times = 1;
}
ret[i++] = ch;
State = 0;
/**********************SLLRCOM**************************/
while ( 1 )
{
switch ( ch )
{
case 's':
case 'S': if(State==0){State=1;break;}else{State=-1;break;}
case 'l':
case 'L':
{
if(State==1){State=2;break;}
if(State==2){State=3;break;}
if(State==4){State=6;break;}
else{State=-1;break;}
}
case 'r':
case 'R': if(State==1){State=4;break;}else{State=-1;break;}
case 'a':
case 'A': if(State==4){State=5;break;}else{State=-1;break;}
// case '\n':
case '\t':
case ' ': if(State==3||State==5||State==6){ret[--i]='\0';TOKEN.TokenID=8;TOKEN.TokenName=ret;return 0;}
else{State=-1;break;}
default: {State=-1;break;}
}
if ( State == -1 )
break;
ch = getc(SourceFileName);
if ( ch == '\n' )
{
No_TxtLine++;
times++;
}
ret[i++] = ch;
}
rewind(SourceFileName);
if ( fseek(SourceFileName, Length, SEEK_CUR) == 1 )
return -1;
i = 0;
ch = ReadOneChar(SourceFileName);
No_TxtLine -= times;
times = 0;
if ( ch == '\n' )
{
No_TxtLine++;
times = 1;
}
ret[i++] = ch;
State = 0;
/**********************ICOM**************************/
while ( 1 )
{
switch ( ch )
{
case 's':
case 'S': if(State==0){State=1;break;} else{State=-1;break;}
case 'l':
case 'L': if(State==1){State=2;break;} else{State=-1;break;}
case 't':
case 'T': if(State==2){State=3;break;} else{State=-1;break;}
case 'i':
case 'I':
{
if(State==3){State=4;break;}
if(State==13){State=14;break;}
if(State==17){State=18;break;}
if(State==20){State=21;break;}
if(State==24){State=25;break;}
else{State=-1;break;}
}
case 'u':
case 'U':
{
if(State==4){State=5;break;}
if(State==14){State=15;break;}
else{State=-1;break;}
}
case 'b':
case 'B': if(State==0){State=6;break;}else{State=-1;break;}
case 'e':
case 'E':
{
if(State==6){State=7;break;}
if(State==9){State=10;break;}
else{State=-1;break;}
}
case 'q':
case 'Q': if(State==7){State=8;break;}else{State=-1;break;}
case 'n':
case 'N':
{
if(State==6){State=9;break;}
if(State==11){State=16;break;}
else{State=-1;break;}
}
case 'a':
case 'A': if(State==0){State=11;break;}else{State=-1;break;}
case 'd':
case 'D':
{
if(State==11){State=12;break;}
if(State==12){State=13;break;}
if(State==16){State=17;break;}
else{State=-1;break;}
}
case 'o':
case 'O':
{
if(State==0){State=19;break;}
if(State==22){State=23;break;}
else{State=-1;break;}
}
case 'r':
case 'R':
{
if(State==19){State=20;break;}
if(State==23){State=24;break;}
else{State=-1;break;}
}
case 'x':
case 'X': if(State==0){State=22;break;}else{State=-1;break;}
// case '\n':
case '\t':
case ' ': if(State==4||State==5||State==8||State==10||State==14||State==15||State==18||State==21||State==25)
{ret[--i]='\0';TOKEN.TokenID=9;TOKEN.TokenName=ret;return 0;}
else{State=-1;break;}
default: {State=-1;break;}
}
if ( State == -1 )
break;
ch = getc(SourceFileName);
if ( ch == '\n' )
{
No_TxtLine++;
times++;
}
ret[i++] = ch;
}
rewind(SourceFileName);
if ( fseek(SourceFileName, Length, SEEK_CUR) == 1 )
return -1;
i = 0;
ch = ReadOneChar(SourceFileName);
No_TxtLine -= times;
times = 0;
if ( ch == '\n' )
{
No_TxtLine++;
times = 1;
}
ret[i++] = ch;
State = 0;
/**********************RCOM**************************/
while ( 1 )
{
switch ( ch )
{
case 'a':
case 'A':
{
if(State==0){State=1;break;}
if(State==21){State=22;break;}
else{State=-1;break;}
}
case 'd':
case 'D':
{
if(State==1){State=2;break;}
if(State==2){State=3;break;}
if(State==5){State=6;break;}
else{State=-1;break;}
}
case 'u':
case 'U':
{
if(State==3){State=4;break;}
if(State==17){State=18;break;}
if(State==15){State=26;break;}
if(State==27){State=28;break;}
else{State=-1;break;}
}
case 'n':
case 'N':
{
if(State==0){State=7;break;}
if(State==1){State=5;break;}
else{State=-1;break;}
}
case 'o':
case 'O':
{
if(State==0){State=10;break;}
if(State==7){State=8;break;}
if(State==12){State=13;break;}
else{State=-1;break;}
}
case 'r':
case 'R':
{
if(State==8){State=9;break;}
if(State==10){State=11;break;}
if(State==13){State=14;break;}
if(State==15){State=21;break;}
else{State=-1;break;}
}
case 'x':
case 'X': if(State==0){State=12;break;}else{State=-1;break;}
case 's':
case 'S': if(State==0){State=15;break;}else{State=-1;break;}
case 'l':
case 'L':
{
if(State==15){State=16;break;}
if(State==16){State=19;break;}
if(State==21){State=24;break;}
else{State=-1;break;}
}
case 't':
case 'T': if(State==16){State=17;break;}else{State=-1;break;}
case 'v':
case 'V':
{
if(State==19){State=20;break;}
if(State==22){State=23;break;}
if(State==24){State=25;break;}
else{State=-1;break;}
}
case 'b':
case 'B': if(State==26){State=27;break;}else{State=-1;break;}
// case '\n':
case '\t':
case ' ': if(State==3||State==4||State==6||State==9||State==11||State==14||State==17||State==18||State==20||State==23||State==25||State==27||State==28)
{ret[--i]='\0';TOKEN.TokenID=6;TOKEN.TokenName=ret;return 0;}
else{State=-1;break;}
default: {State=-1;break;}
}
if ( State == -1 )
break;
ch = getc(SourceFileName);
if ( ch == '\n' )
{
No_TxtLine++;
times++;
}
ret[i++] = ch;
}
rewind(SourceFileName);
if ( fseek(SourceFileName, Length, SEEK_CUR) == 1 )
return -1;
i = 0;
ch = ReadOneChar(SourceFileName);
No_TxtLine -= times;
times = 0;
if ( ch == '\n' )
{
No_TxtLine++;
times = 1;
}
ret[i++] = ch;
State = 0;
/**********************SICOM**************************/
while ( 1 )
{
switch ( ch )
{
case 'l':
case 'L': if(State==0){State=1;break;}else{State=-1;break;}
case 'u':
case 'U': if(State==1){State=2;break;}else{State=-1;break;}
case 'i':
case 'I': if(State==2){State=3;break;}else{State=-1;break;}
// case '\n':
case '\t':
case ' ': if(State==3){ret[--i]='\0';TOKEN.TokenID=10;TOKEN.TokenName=ret;return 0;}else{State=-1;break;}
default: {State=-1;break;}
}
if ( State == -1 )
break;
ch = getc(SourceFileName);
if ( ch == '\n' )
{
No_TxtLine++;
times++;
}
ret[i++] = ch;
}
rewind(SourceFileName);
if ( fseek(SourceFileName, Length, SEEK_CUR) == 1 )
return -1;
i = 0;
ch = ReadOneChar(SourceFileName);
No_TxtLine -= times;
times = 0;
if ( ch == '\n' )
{
No_TxtLine++;
times = 1;
}
ret[i++] = ch;
State = 0;
/**********************LWICOM**************************/
while ( 1 )
{
switch ( ch )
{
case 'l':
case 'L': if(State==0){State=1;break;}else{State=-1;break;}
case 's':
case 'S': if(State==0){State=3;break;}else{State=-1;break;}
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