📄 assembler.cpp
字号:
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;}
case 'w':
case 'W':
{
if(State==1){State=2;break;}
if(State==3){State=4;break;}
else{State=-1;break;}
}
// case '\n':
case '\t':
case ' ': if(State==2||State==4){ret[--i]='\0';TOKEN.TokenID=11;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;
/**********************JCOM**************************/
while ( 1 )
{
switch ( ch )
{
case 'j':
case 'J': if(State==0){State=1;break;}else{State=-1;break;}
case 'a':
case 'A': if(State==1){State=2;break;}else{State=-1;break;}
case 'l':
case 'L': if(State==2){State=3;break;}else{State=-1;break;}
// case '\n':
case '\t':
case ' ': if(State==1||State==3){ret[--i]='\0';TOKEN.TokenID=12;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;
/**********************IDNAME**************************/
while ( 1 )
{
if ( ((ch>='a'&&ch<='z')||(ch>='A'&&ch<='Z')) && (State==0||State==1) )
{
State = 1;
ch = getc( SourceFileName );
if ( ch == '\n' )
No_TxtLine++;
ret[i++] = ch;
continue;
}
if ( (ch>='0'&&ch<='9') && State == 1 )
{
State = 1;
ch = getc( SourceFileName );
if ( ch == '\n' )
No_TxtLine++;
ret[i++] = ch;
continue;
}
if ( State == 1 )
if ( ungetc(ch, SourceFileName) )
{
if ( ch == '\n' )
No_TxtLine--;
ret[--i]='\0';TOKEN.TokenID=3;TOKEN.TokenName=ret;return 0;
}
else
return -1;
else
return -1;
}
break;
}
case 19: //当前栈顶为<N_END SEGID>
{ //应该扫描END单词
char ch = ReadOneChar(SourceFileName);
if ( ch == '\n' )
No_TxtLine++;
while ( 1 )
{
switch ( ch )
{
case 'e':
case 'E': if(State==0){State=1;break;}else{State=-1;break;}
case 'n':
case 'N': if(State==1){State=2;break;}else{State=-1;break;}
case 'd':
case 'D': if(State==2){State=3;break;}else{State=-1;break;}
// case '\n':
case '\t':
case ' ': if(State==3){TOKEN.TokenID=13;TOKEN.TokenName="END";return 0;}else{State=-1;break;}
default: {State=-1;break;}
}
if ( State == -1 ) return -1;
ch = getc(SourceFileName);
if ( ch == '\n' )
No_TxtLine++;
}
break;
}
case 21: //当前栈顶为N_COMQ，需要识别T_ICOM
{
i = 0;
char ch = ReadOneChar(SourceFileName);
if ( ch == '\n' )
No_TxtLine++;
ret[i++] = ch;
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;}
}
ch = getc(SourceFileName);
if ( ch == '\n' )
No_TxtLine++;
ret[i++] = ch;
}
break;
}
case 22: //当前栈顶为N_COMQA，需要识别T_IMMEDIATE或者T_IDNAME
{
int Length = ftell(SourceFileName);
char ch = ReadOneChar(SourceFileName);
char temp[20];
i = 0;
bool token = false;
while ((ch>='a'&&ch<='f')||(ch>='A'&&ch<='F')||(ch>='0'&&ch<='9')||(ch=='o'||ch=='O')||(ch=='h'||ch=='H'))
{
temp[i++] = ch;
// ret[i++] = ch;
ch = getc(SourceFileName);
if ( ch == '\n' )
No_TxtLine++;
token = true;
}
// if ( ungetc(ch, SourceFileName) == 0 ) return -1; //注意fgets在不超过缓冲区长度的情况下也包含了'\n'和自动添加的'\0'
if ( token == true )
{
i = 0;
while ( (i<18) && ((temp[i]>='a'&&temp[i]<='f')||(temp[i]>='A'&&temp[i]<='F')||(temp[i]>='0'&&temp[i]<='9')) )
{
ret[i] = temp[i];
i++;
}
if (i<18)
{
// if ( ungetc('\n', SourceFileName) == 0 ) return -1;
int l = 0;
if (temp[i]=='o'||temp[i]=='O'||temp[i]=='h'||temp[i]=='H')
{
if ( temp[i] == 'h' || temp[i] == 'H' ) //十六进制立即数
{
if ( i > 5 )
{
break;
}
else if ( i == 5 )
{
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