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Copy pathexec.c
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787 lines (684 loc) · 35.1 KB
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#include "exec.h"
#define PC registers[8]
int exec_code(symbol_table *code, int opt,short int mode){
short int end=0,base=0,flag=0,temp=0,shift=0,lea=0,lsreg=0,retShift[10],retidx=0,registers[9]={0,0,0,0,0,0,0,0,0},len,i;
char cc, user;
//r0-7 = registers[0] to [7], PC= pc
base=hexToInt(code[1].token_val)-1;
//printInstr(PC,base,code,shift);
PC++;
shift++;
while(!end){
printInstr(PC,base,code,shift);
if(strcmp(code[PC+shift].type,"label")==0){
shift++;
}
// BR TUTTE
if(code[PC+shift].token_val[0]=='B' && code[PC+shift].token_val[1]=='R'){
for(len=0;code[PC+shift].token_val[len]!='\0';len++);
for(i=2;i<=len && len!=10;i++){
if(i==len){
flag=1;
}
if(flag==1 || code[PC+shift].token_val[i]==cc){
//tengo salvato lo shift per atoi
temp=shift;
//br sulla stessa riga
if(code[PC+shift].line_num==atoi(code[PC+shift+1].token_val)){
printf("\033[A\t\t\t%s\n",code[PC+shift-1].token_val);
end=1;
len=10;
//br con label sopra nel codice
}else if(code[PC+shift].line_num>atoi(code[PC+temp+1].token_val)){
while(len!=10){
shift--;
if(code[PC+shift].line_num==atoi(code[PC+temp+1].token_val) && code[PC+shift].line_num != code[PC+shift-1].line_num){
len=10;
if(strcmp(code[PC+temp-1].type,"label")==0 && code[PC+temp-1].line_num == code[PC+temp].line_num){
printf("\033[A\t\t\t%s\n",code[PC+shift].token_val);
}else{
printf("\033[A\t\t%s\n",code[PC+shift].token_val);
}
}
}
//br con label sotto nel codice
}else{
while(len!=10){
shift++;
if(code[PC+shift].line_num==atoi(code[PC+temp+1].token_val)){
len=10;
if(strcmp(code[PC+temp-1].type,"label")==0 && code[PC+temp-1].line_num == code[PC+temp].line_num){
printf("\033[A\t\t\t%s\n",code[PC+shift].token_val);
}else{
printf("\033[A\t\t%s\n",code[PC+shift].token_val);
}
}
}
}
//faccio salto se necessario
if(!flag){
shift=PC+shift-atoi(code[PC+temp+1].token_val)+1;
PC=atoi(code[PC+temp+1].token_val)-2;
}else{
shift=temp;
shift++;
}
flag=0;
}
}
temp=0;
}else if(strcmp(code[PC+shift].token_val,"ADD")==0){
switch(code[PC+shift+3].token_val[0]){
case 'R':
registers[regNum(code[PC+shift+1].token_val[1])]=registers[regNum(code[PC+shift+2].token_val[1])]+registers[regNum(code[PC+shift+3].token_val[1])];
break;
case 'X':
temp=hexToInt(code[PC+shift+3].token_val);
if(temp>15){
registers[regNum(code[PC+shift+1].token_val[1])]=0;
}else{
registers[regNum(code[PC+shift+1].token_val[1])]=registers[regNum(code[PC+shift+2].token_val[1])]+hexToInt(code[PC+shift+3].token_val);
}
break;
case 'B':
temp=binToInt(code[PC+shift+3].token_val);
//printf("\n\ntemp: %d\n\n",temp);
if(temp>15 || temp<-15){
registers[regNum(code[PC+shift+1].token_val[1])]=0;
}else{
registers[regNum(code[PC+shift+1].token_val[1])]=registers[regNum(code[PC+shift+2].token_val[1])]+binToInt(code[PC+shift+3].token_val);
}
break;
case '#':
//printf("\n\n coos? %s\n\n",code[PC+shift+3].token_val);
registers[regNum(code[PC+shift+1].token_val[1])]=registers[regNum(code[PC+shift+2].token_val[1])]+numToInt(code[PC+shift+3].token_val);
//printf("\n\n che succ? %s\n\n",code[PC+shift+3].token_val);
}
cc=checkCC(registers[regNum(code[PC+shift+1].token_val[1])]);
shift+=3;
}else if(strcmp(code[PC+shift].token_val,"LD")==0 || strcmp(code[PC+shift].token_val,"ST")==0 || strcmp(code[PC+shift].token_val,"LEA")==0){
//printf("beh si\n\n\n");
if(strcmp(code[PC+shift].token_val,"ST")==0){
flag=1;
}
if(strcmp(code[PC+shift].token_val,"LEA")==0){
lea=1;
}
temp=shift;
len=0;
//errore, sulla stessa riga
if(code[PC+shift].line_num==atoi(code[PC+temp+2].token_val)){
printf("\033[A\t\t\t%s\n",code[PC+shift-1].token_val);
printf("\ninternal error\n");
end=1;
//br con label sopra nel codice
}else if(code[PC+shift].line_num>atoi(code[PC+temp+2].token_val)){
while(len!=10){
shift--;
if(code[PC+shift].line_num==atoi(code[PC+temp+2].token_val) && code[PC+shift].line_num != code[PC+shift-1].line_num){
//rintf("\n\na%sa\n\n",code[PC+shift+1].token_val);
len=10;
//printf("coso: \"%d\"\n\n",strcmp(code[PC+shift+1].type,".blkw")==0);
if(!(strcmp(code[PC+shift+1].type,".blkw")==0) && !(strcmp(code[PC+shift+1].type,".stringz")==0) && !(strcmp(code[PC+shift+1].token_val,".FILL")==0) ){
printf("\ninternal error\n");
end=1;
}else{
//printf("\n\na%sa\n\n",code[PC+shift+1].type);
if(strcmp(code[PC+shift+1].type,".stringz")==0){
//printf("siii\n\n\n");
if(flag){
if(realloc(code[PC+shift+1].token_val, sizeof(char)*6)==NULL){
printf("memory error");
end=1;
}
sprintf(code[PC+shift+1].token_val,"%c",(registers[regNum(code[PC+temp+1].token_val[1])]));
//printf("salvato: %s\n\n",code[PC+shift+1].token_val);
}else if(lea){
//LINEA VECCHIA registers[regNum(code[PC+temp+1].token_val[1])]=PC+shift+1+base;
registers[regNum(code[PC+temp+1].token_val[1])]=(atoi(code[PC+temp+2].token_val)+base-1);
//printf("staz a: %d\n\n",atoi(code[PC+temp+2].token_val)-1);
}else{
//printf("trovato: %c\n\n",code[PC+shift+1].token_val[0]);
registers[regNum(code[PC+temp+1].token_val[1])]=code[PC+shift+1].token_val[0];
}
}else if(strcmp(code[PC+shift+1].type,".blkw")==0){
if(flag){
//printf("\n\nst\n\n");
code[PC+shift+1].token_val=malloc(sizeof(char)*6);
sprintf(code[PC+shift+1].token_val,"%d",registers[regNum(code[PC+temp+1].token_val[1])]);
//code[PC+shift+1].token_val=registers[regNum(code[PC+temp+1].token_val[1])]+'0';
//printf("salvato: %d\n\n",registers[regNum(code[PC+temp+1].token_val[1])]);
}else if(lea){
//LINEA VECCHIA registers[regNum(code[PC+temp+1].token_val[1])]=PC+shift+1+base;
registers[regNum(code[PC+temp+1].token_val[1])]=atoi(code[PC+temp+2].token_val)+base-1;
//printf("sta a: %d\n\n",atoi(code[PC+temp+2].token_val));
}else{
if(code[PC+shift+1].token_val==NULL){
registers[regNum(code[PC+temp+1].token_val[1])]=0;
}else{
registers[regNum(code[PC+temp+1].token_val[1])]=atoi(code[PC+shift+1].token_val);
}
}
}else if(strcmp(code[PC+shift+1].token_val,".FILL")==0){
if(flag){
//printf("\n\nst\n\n");
code[PC+shift+2].token_val=malloc(sizeof(char)*6);
sprintf(code[PC+shift+2].token_val,"%d",registers[regNum(code[PC+temp+1].token_val[1])]);
}else if(lea){
//LINEA VECCHIA registers[regNum(code[PC+temp+1].token_val[1])]=PC+shift+1+base;
registers[regNum(code[PC+temp+1].token_val[1])]=atoi(code[PC+temp+2].token_val)+base-1;
//printf("sta a: %d\n\n",atoi(code[PC+temp+2].token_val));
}else{
switch(code[PC+shift+2].token_val[0]){
case 'X':
registers[regNum(code[PC+temp+1].token_val[1])]=hexToInt(code[PC+shift+2].token_val);
break;
case 'B':
registers[regNum(code[PC+temp+1].token_val[1])]=binToInt(code[PC+shift+2].token_val);
break;
default:
if(atoi(code[PC+shift+2].token_val)>32767){
registers[regNum(code[PC+temp+1].token_val[1])]=0;
}else{
registers[regNum(code[PC+temp+1].token_val[1])]=atoi(code[PC+shift+2].token_val);
}
}
cc=checkCC(registers[regNum(code[PC+temp+1].token_val[1])]);
}
}
//printf("nooo\n\n\n");
if(strcmp(code[PC+temp-1].type,"label")==0 && code[PC+temp-1].line_num == code[PC+temp].line_num){
printf("\033[A\t\t\t\t%s\n",code[PC+shift].token_val);
}else{
printf("\033[A\t\t\t%s\n",code[PC+shift].token_val);
}
}
}
}
//br con label sotto nel codice
}else{
//printf("here %d\n\n",len);
while(len!=10){
//printf("here\n\n");
shift++;
if(code[PC+shift].line_num==atoi(code[PC+temp+2].token_val) && code[PC+shift].line_num != code[PC+shift-1].line_num){
//rintf("\n\na%sa\n\n",code[PC+shift+1].token_val);
len=10;
//printf("si.\n");
//printf("coso: \"%d\"\n\n",strcmp(code[PC+shift+1].type,".blkw")==0);
if(!(strcmp(code[PC+shift+1].type,".blkw")==0) && !(strcmp(code[PC+shift+1].type,".stringz")==0) && !(strcmp(code[PC+shift+1].token_val,".FILL")==0) ){
printf("\ninternal error\n");
end=1;
}else{
//printf("\n\na%sa\n\n",code[PC+shift+1].type);
if(strcmp(code[PC+shift+1].type,".stringz")==0){
//printf("siii\n\n\n");
if(flag){
if(realloc(code[PC+shift+1].token_val, sizeof(char)*6)==NULL){
printf("memory error");
end=1;
}
sprintf(code[PC+shift+1].token_val,"%c",(registers[regNum(code[PC+temp+1].token_val[1])]));
//printf("salvato: %s\n\n",code[PC+shift+1].token_val);
}else if(lea){
//LINEA VECCHIA registers[regNum(code[PC+temp+1].token_val[1])]=PC+shift+1+base;
registers[regNum(code[PC+temp+1].token_val[1])]=(atoi(code[PC+temp+2].token_val)+base-1);
//printf("stac a: %d\n\n",registers[regNum(code[PC+temp+1].token_val[1])]-base);
//printf("a: %s\n\n",code[PC+shift+1].token_val);
}else{
//printf("trovato: %c\n\n",code[PC+shift+1].token_val[0]);
registers[regNum(code[PC+temp+1].token_val[1])]=code[PC+shift+1].token_val[0];
}
}else if(strcmp(code[PC+shift+1].type,".blkw")==0){
//printf("qui?\n\n");
if(flag){
//printf("\n\nst\n\n");
code[PC+shift+1].token_val=malloc(sizeof(char)*6);
sprintf(code[PC+shift+1].token_val,"%d",registers[regNum(code[PC+temp+1].token_val[1])]);
//code[PC+shift+1].token_val=registers[regNum(code[PC+temp+1].token_val[1])]+'0';
//printf("salvato: %d\n\n",registers[regNum(code[PC+temp+1].token_val[1])]);
}else if(lea){
//LINEA VECCHIA registers[regNum(code[PC+temp+1].token_val[1])]=PC+shift+1+base;
registers[regNum(code[PC+temp+1].token_val[1])]=(atoi(code[PC+temp+2].token_val)+base-1);
//printf("sta a: %d\n\n",atoi(code[PC+temp+2].token_val));
}else{
if(code[PC+shift+1].token_val==NULL){
registers[regNum(code[PC+temp+1].token_val[1])]=0;
}else{
registers[regNum(code[PC+temp+1].token_val[1])]=atoi(code[PC+shift+1].token_val);
}
}
}else if(strcmp(code[PC+shift+1].token_val,".FILL")==0){
//printf("almeno...\n\n");
if(flag){
//printf("\n\nst\n\n");
code[PC+shift+2].token_val=malloc(sizeof(char)*6);
sprintf(code[PC+shift+2].token_val,"%d",registers[regNum(code[PC+temp+1].token_val[1])]);
}else if(lea){
//LINEA VECCHIA registers[regNum(code[PC+temp+1].token_val[1])]=PC+shift+1+base;
registers[regNum(code[PC+temp+1].token_val[1])]=(atoi(code[PC+temp+2].token_val)+base-1);
//printf("sta a: %d\n\n",atoi(code[PC+temp+2].token_val));
}else{
switch(code[PC+shift+2].token_val[0]){
case 'X':
registers[regNum(code[PC+temp+1].token_val[1])]=hexToInt(code[PC+shift+2].token_val);
break;
case 'B':
registers[regNum(code[PC+temp+1].token_val[1])]=binToInt(code[PC+shift+2].token_val);
break;
default:
//printf("num!: %d\n\n",atoi(code[PC+shift+2].token_val));
if(atoi(code[PC+shift+2].token_val)>32767){
registers[regNum(code[PC+temp+1].token_val[1])]=0;
}else{
registers[regNum(code[PC+temp+1].token_val[1])]=atoi(code[PC+shift+2].token_val);
}
}
cc=checkCC(registers[regNum(code[PC+temp+1].token_val[1])]);
}
}else{
printf("error\n\n");
}
//printf("nooo\n\n\n");
if(strcmp(code[PC+temp-1].type,"label")==0 && code[PC+temp-1].line_num == code[PC+temp].line_num){
printf("\033[A\t\t\t\t%s\n",code[PC+shift].token_val);
}else{
printf("\033[A\t\t\t%s\n",code[PC+shift].token_val);
}
}
}
}
}
shift=temp;
cc=checkCC(registers[regNum(code[PC+shift+1].token_val[1])]);
shift+=2;
temp=0,len=0,flag=0,lea=0,lsreg=0;
}else if(strcmp(code[PC+shift].token_val,"JSR")==0){
temp=shift;
//br sulla stessa riga
if(code[PC+shift].line_num==atoi(code[PC+shift+1].token_val)){
printf("\ninternal error\n");
end=1;
//br con label sopra nel codice
}else if(code[PC+shift].line_num>atoi(code[PC+temp+1].token_val)){
while(len!=10){
shift--;
if(code[PC+shift].line_num==atoi(code[PC+temp+1].token_val) && code[PC+shift].line_num != code[PC+shift-1].line_num){
len=10;
if(strcmp(code[PC+temp-1].type,"label")==0 && code[PC+temp-1].line_num == code[PC+temp].line_num){
printf("\033[A\t\t\t%s\n",code[PC+shift].token_val);
}else{
printf("\033[A\t\t%s\n",code[PC+shift].token_val);
}
}
}
//br con label sotto nel codice
}else{
while(len!=10){
shift++;
if(code[PC+shift].line_num==atoi(code[PC+temp+1].token_val)){
len=10;
if(strcmp(code[PC+temp-1].type,"label")==0 && code[PC+temp-1].line_num == code[PC+temp].line_num){
printf("\033[A\t\t\t%s\n",code[PC+shift].token_val);
}else{
printf("\033[A\t\t%s\n",code[PC+shift].token_val);
}
}
}
}
//controllare shift e altro
registers[7]=PC+base;
retShift[retidx]=temp+1;
retidx++;
shift=PC+shift-atoi(code[PC+temp+1].token_val)+1;
PC=atoi(code[PC+temp+1].token_val)-2;
temp=0,len=0;
}else if(strcmp(code[PC+shift].token_val,"AND")==0){
//printf("\n%d & %d=%d\n\n",registers[regNum(code[PC+shift+2].token_val[1])],numToInt(code[PC+shift+3].token_val),registers[regNum(code[PC+shift+2].token_val[1])]& numToInt(code[PC+shift+3].token_val));
//lc2And(registers[regNum(code[PC+shift+2].token_val[1])],numToInt(code[PC+shift+3].token_val));
//AND BIT A BIT ANCHE CA2
switch(code[PC+shift+3].token_val[0]){
case 'R':
registers[regNum(code[PC+shift+1].token_val[1])]=lc2And(registers[regNum(code[PC+shift+2].token_val[1])],registers[regNum(code[PC+shift+3].token_val[1])]);
break;
case 'X':
temp=hexToInt(code[PC+shift+3].token_val);
if(temp<=15 || temp>=-15){
registers[regNum(code[PC+shift+1].token_val[1])]=0;
}else{
registers[regNum(code[PC+shift+1].token_val[1])]=lc2And(registers[regNum(code[PC+shift+2].token_val[1])],hexToInt(code[PC+shift+3].token_val));
}
break;
case 'B':
temp=binToInt(code[PC+shift+3].token_val);
printf("bin: %d\n\n",binToInt(code[PC+shift+3].token_val));
if(temp>15 || temp<-15){
registers[regNum(code[PC+shift+1].token_val[1])]=0;
}else{
registers[regNum(code[PC+shift+1].token_val[1])]=lc2And(registers[regNum(code[PC+shift+2].token_val[1])],binToInt(code[PC+shift+3].token_val));
}
break;
case '#':
registers[regNum(code[PC+shift+1].token_val[1])]=lc2And(registers[regNum(code[PC+shift+2].token_val[1])],numToInt(code[PC+shift+3].token_val));
}
cc=checkCC(registers[regNum(code[PC+shift+1].token_val[1])]);
shift+=3;
}else if(strcmp(code[PC+shift].token_val,"LDR")==0){
//printf("tipoz: %d\n\n",registers[regNum(code[PC+shift+2].token_val[1])]+numToInt(code[PC+shift+3].token_val)-base+1);
temp=0;
//if(code[registers])
//printf("tipso: %d\n",code[PC+temp].line_num);
while(code[temp].line_num != registers[regNum(code[PC+shift+2].token_val[1])]+numToInt(code[PC+shift+3].token_val)-base+1 ){
//printf("tipo: %d\n",code[temp].line_num);
temp++;
}
if(strcmp(code[temp].type,"label")==0){
temp++;
}
//printf("tipo: %s, l: %d\n\n",code[temp].type,registers[regNum(code[PC+shift+2].token_val[1])]+numToInt(code[PC+shift+3].token_val)-base+1);
if(strcmp(code[temp].type,".stringz")==0){
registers[regNum(code[PC+shift+1].token_val[1])] = code[temp].token_val[0];
}else if(strcmp(code[temp].type,".blkw")==0){
if(code[temp].token_val==NULL){
registers[regNum(code[PC+shift+1].token_val[1])]=0;
//printf("LDR err\n\n");
}else{
//printf("\n\naaa: %d\n\n",atoi(code[registers[regNum(code[PC+shift+2].token_val[1])]+numToInt(code[PC+shift+3].token_val)-base].token_val));
registers[regNum(code[PC+shift+1].token_val[1])]=atoi(code[temp].token_val);
}
}else if(strcmp(code[temp].token_val,".FILL")==0){
switch(code[temp+1].token_val[0]){
case 'X':
registers[regNum(code[PC+shift+1].token_val[1])]=hexToInt(code[temp+1].token_val);
break;
case 'B':
registers[regNum(code[PC+shift+1].token_val[1])]=binToInt(code[temp+1].token_val);
break;
default:
if(atoi(code[temp+1].token_val)>32767){
registers[regNum(code[PC+shift+1].token_val[1])]=0;
printf("LDR err\n\n");
}else{
//printf("trovato: %d\n\n",atoi(code[registers[regNum(code[PC+shift+2].token_val[1])]+numToInt(code[PC+shift+3].token_val)-base+1].token_val));
registers[regNum(code[PC+shift+1].token_val[1])]=atoi(code[temp+1].token_val);
}
}
}else{
printf("LDR error\n\n");
}
cc=checkCC(registers[regNum(code[PC+shift+1].token_val[1])]);
if(registers[regNum(code[PC+shift+1].token_val[1])]=='0'){
cc='Z';
}
shift+=3,flag=0,len=0,temp=0;
}else if(strcmp(code[PC+shift].token_val,"STR")==0){
temp=0;
//if(code[registers])
//printf("tipso: %d\n",code[PC+temp].line_num);
while(code[temp].line_num != registers[regNum(code[PC+shift+2].token_val[1])]+numToInt(code[PC+shift+3].token_val)-base+1 ){
//printf("tipo: %d\n",code[temp].line_num);
temp++;
}
if(strcmp(code[temp].type,"label")==0){
temp++;
}
//printf("stuff: %d\n\n",registers[regNum(code[PC+shift+2].token_val[1])]-base+numToInt(code[PC+shift+3].token_val));
if(strcmp(code[temp].type,".stringz")==0){
//registers[regNum(code[PC+shift+1].token_val[1])] = [0];
if(realloc(code[temp].token_val,sizeof(char)*2)==NULL){
printf("memory error");
end=1;
}
sprintf(code[temp].token_val,"%c",registers[regNum(code[PC+shift+1].token_val[1])]);
printf("messo: %s\n\n",code[temp].token_val);
cc=checkCC(atoi(code[temp+1].token_val));
if((code[temp+1].token_val[0])=='0'){
cc='Z';
}
}else if(strcmp(code[temp].type,".blkw")==0){
if(realloc(code[temp].token_val,sizeof(char)*6)==NULL){
printf("memory error");
end=1;
}
sprintf(code[temp].token_val,"%d",registers[regNum(code[PC+shift+1].token_val[1])]);
printf("messob: %s\n\n",code[temp].token_val);
cc=checkCC(atoi(code[temp+1].token_val));
}else if(strcmp(code[temp].token_val,".FILL")==0){
if(realloc(code[temp+1].token_val,sizeof(char)*6)==NULL){
printf("memory error");
end=1;
}
sprintf(code[temp+1].token_val,"%d",registers[regNum(code[PC+shift+1].token_val[1])]);
printf("messof: %s\n\n",code[temp].token_val);
cc=checkCC(atoi(code[temp+1].token_val));
}else{
printf("STR error\n\n");
}
shift+=3,temp=0,len=0;
}else if(strcmp(code[PC+shift].token_val,"RTI")==0){
printf("instruction RTI not yet implemented.");
end=1;
}else if(strcmp(code[PC+shift].token_val,"NOT")==0){
registers[regNum(code[PC+shift+1].token_val[1])]=~(registers[regNum(code[PC+shift+2].token_val[1])]);
shift+=2;
}else if(strcmp(code[PC+shift].token_val,"LDI")==0){
printf("pages not yet implemented.");
end=1;
}else if(strcmp(code[PC+shift].token_val,"STI")==0){
printf("pages not yet implemented.");
end=1;
}else if(strcmp(code[PC+shift].token_val,"JSRR")==0){
printf("instruction JSRR not yet implemented.");
end=1;
}else if(strcmp(code[PC+shift].token_val,"RET")==0){
PC=registers[7]-base;
retidx--;
shift=retShift[retidx];
}else if(strcmp(code[PC+shift].token_val,"TRAP")==0){
printf("instruction TRAP not yet implemented.");
end=1;
}else if(strcmp(code[PC+shift].token_val,".END")==0){
end=1;
}else{
printf("internal error");
end=1;
}
PC++;
if(opt==0 && !end){
printf("> ");
scanf("%c",&user);
printf("\033[A"); //FIGATA!!!
if(user=='r'){
getchar();
printRegisters(registers,base,cc);
}else if(user>32){
getchar();
}
}else if(opt==2 && !end){
sleep(1);
//printf("TEST fine sleep\n");
}
//printf("ciclo\n");
}
printRegisters(registers,base,cc);
return 0;
}
void printRegisters(short int reg[],short int base,char cc){
printf("\n");
printf("R0=%d\tR1=%d\tR2=%d\tR3=%d\nR4=%d\tR5=%d\tR6=%d\tR7=%d\nCC=%c\tPC=%d (x%X)\n\n",reg[0],reg[1],reg[2],reg[3],reg[4],reg[5],reg[6],reg[7],cc,reg[8]+base-1,reg[8]+base-1);
}
char checkCC(short int result){
char out;
if(result>0){
out='P';
}else if(result<0){
out='N';
}else{
out='Z';
}
return out;
}
short int lc2And(short int one, short int two){
//printf("one: %d two: %d\n",one,two);
char *first,*second;
//int res[16];
short int i,result=0;
first=malloc(sizeof(char)*17);
second=malloc(sizeof(char)*17);
toCa2(one,first);
toCa2(two,second);
for (i=0;i<16;i++){
//printf("out: %d\n",(first[i]=='1' && second[i]=='1'));
if((first[i]=='1' && second[i]=='1')){
//printf("idx: %d\n",i);
result+=powz(2,i);
}
}
//perchè funziona? Grazie all'overflow dello short !!! numeri negativi corretti!
//printf("\nres: %d\n",result);
return result;
}
void toCa2(short one, char *first){
int i;
if(!(one >=0)){
//one--;
one=~(one);
for(i=0;i<16;i++){
if(one%2==0){
first[i]='1';
}else if(one%2==1){
first[i]='0';
}
//printf("second: %c, mass: %d\n",first[i], one);
one=one/2;
}
//printf("\n\n\n");
}else{
for(i=0;i<16;i++){
if(one%2==0){
first[i]='0';
}else if(one%2==1){
first[i]='1';
}
//printf("second: %c, mass: %d\n",first[i], one);
one=one/2;
}
//printf("\n\n");
}
}
//ca2 binary
int binToInt(char *bin){
int i = 0,len,result = 0,n=0;
for(len=0;bin[len]!='\0';len++);
len-=2;
if(bin[1]=='1'){
len--;
for(i=2;bin[i]!='\0';i++){
//ca2
if(bin[i]=='0'){
result+=powz(2,len);
}
len--;
}
result=result-(2*result);
result--;
}else{
for(i=1;bin[i]!='\0';i++){
//ca2
if(bin[i]=='1'){
result+=powz(2,len);
}
len--;
}
}
return (result);
}
short int numToInt(char *num){
int i,j;
char *str;
for(i=0;num[i]!='\0';i++);
//printf("\n\nlen: %d\n\n",i);
str=malloc(sizeof(char)*i);
if(num[1]=='-'){
str[0]='-';
for(j=1;j<i;j++){
//printf("num:%d\n\n",num[j+1]);
str[j]=num[j+1];
}
}else{
for(j=0;j<i;j++){
str[j]=num[j+1];
//printf("num:%d\n\n",num[j+1]);
}
}
//printf("\n ris: %d\n\n",atoi(str));
return atoi(str);
}
short int hexToInt(char *hex){
int i = 0,len,result = 0;
for(len=0;hex[len]!='\0';len++);
len-=2;
//printf("len: %d\n",len);
for(i=1;hex[i]!='\0';i++){
//printf("%c per len:%d\n",hex[i],len);
switch (hex[i])
{
case 'A':
printf("si\n\n\n");
result+=10*powz(16,len);
break;
case 'B':
result+=11*powz(16,len);
break;
case 'C':
result+=12*powz(16,len);
break;
case 'D':
result+=13*powz(16,len);
break;
case 'E':
result+=14*powz(16,len);
break;
case 'F':
result+=15*powz(16,len);
break;
default:
if((hex[i] - '0')==0){
//printf("sis\n");
}else{
//printf("cosa: %d\n",(hex[i]- '0')*powz(16,len));
result+=(hex[i]- '0')*powz(16,len);
}
}
//printf("result: %d\n",result);
len--;
}
//printf("res: %d\n\n",result);
if(result>32767){
result=0;
}
return result;
}
int powz(int base, int exp){
int i=0,acc=1;
for(i=0;i<exp;i++){
acc*=base;
}
return acc;
}
void printInstr(short int pc, short int base, symbol_table *code, short int shift){
printf("x%X\t",pc+base);
do{
printf("%s\t",code[pc+shift].token_val);
pc++;
}while(code[pc+shift].line_num==code[pc+shift-1].line_num);
//non so perchè l'avevo messo
/*if(code[pc+shift].type!=0 ){
printf("a%s",code[pc+shift].token_val);
}*/
printf("\n");
}
int regNum(char reg){
int number=0;
return number=reg-48;
}