static RNumCalcValue expr(RNum *num, RNumCalc *nc, int get) {
RNumCalcValue left = term (num, nc, get);
for (;;) {
switch (nc->curr_tok) {
case RNCPLUS: left = Nadd (left, term (num, nc, 1)); break;
case RNCMINUS: left = Nsub (left, term (num, nc, 1)); break;
case RNCXOR: left = Nxor (left, term (num, nc, 1)); break;
case RNCORR: left = Norr (left, term (num, nc, 1)); break;
case RNCAND: left = Nand (left, term (num, nc, 1)); break;
default:
return left;
}
}
return left;
}
void excute(){
if(stall){
extype = 0;
EX = "NOP";
}else {
extype = idtype;
EX = ID;
}
if(strcmp(EX,"ADD") == 0){
if(Add(rs,rt,rd) < 0){
error_no = 1;
}
}else if(strcmp(EX,"SUB") == 0){
if(Sub(rs,rt,rd) < 0){
error_no = 1;
}
}else if(strcmp(EX,"ADDU") == 0){
Add(rs,rt,rd);
}else if(strcmp(EX,"AND") == 0){
And(rs,rt,rd);
}else if(strcmp(EX,"OR") == 0){
Or(rs,rt,rd);
}else if(strcmp(EX,"XOR") == 0){
Xor(rs,rt,rd);
}else if(strcmp(EX,"NOR") == 0){
Nor(rs,rt,rd);
}else if(strcmp(EX,"NAND") == 0){
Nand(rs,rt,rd);
}else if(strcmp(EX,"SLT") == 0){
Slt(rs,rt,rd);
}else if(strcmp(EX,"SLL") == 0){
Sll(rt,rd,shamt);
}else if(strcmp(EX,"SRL") == 0){
Srl(rt,rd,shamt);
}else if(strcmp(EX,"SRA") == 0){
Sra(rt,rd,shamt);
}else if(strcmp(EX,"JR") == 0){
PC = registers[rs];
}else if(strcmp(EX,"ADDI") == 0){
if(Addi(rs,rt,imm)<0){
error_no = 1;
}
}else if(strcmp(EX,"ADDIU") == 0){
Addiu(rs,rt,imm);
}else if(strcmp(EX,"LW") == 0){
Lw(rs,rt,imm);
}else if(strcmp(EX,"LH") == 0){
Lh(rs,rt,imm);
}else if(strcmp(EX,"LHU") == 0){
Lhu(rs,rt,imm);
}else if(strcmp(EX,"LB") == 0){
Lb(rs,rt,imm);
}else if(strcmp(EX,"LBU") == 0){
Lbu(rs,rt,imm);
}else if(strcmp(EX,"SW") == 0){
Sw(rs,rt,imm);
}else if(strcmp(EX,"SH") == 0){
Sh(rs,rt,imm);
}else if(strcmp(EX,"SB") == 0){
Sb(rs,rt,imm);
}else if(strcmp(EX,"LUI") == 0){
Lui(rt,imm);
}else if(strcmp(EX,"ANDI") == 0){
Andi(rs,rt,imm);
}else if(strcmp(EX,"ORI") == 0){
Ori(rs,rt,imm);
}else if(strcmp(EX,"NORI") == 0){
Nori(rs,rt,imm);
}else if(strcmp(EX,"SLTI") == 0){
Slti(rs,rt,imm);
}else if(strcmp(EX,"JAL") == 0){
registers[31] = PC;
PC = (PC)/(int)(Pow(2,28)+0.01)*(int)(Pow(2,28)+0.01) + ads*4;
}else if(strcmp(EX,"J") == 0){
PC = (PC)/(int)(Pow(2,28)+0.01)*(int)(Pow(2,28)+0.01) + ads*4;
}/*else if(strcmp(EX,"BEQ") == 0 || strcmp(EX,"BNE") == 0 || strcmp(EX,"BGTZ") == 0){
PC = go;
}*/
}