| Line 3... |
Line 3... |
char *table_r[] = { "B", "C", "D", "E", "H", "L", "(HL)", "A" };
|
char *table_r[] = { "B", "C", "D", "E", "H", "L", "(HL)", "A" };
|
char *table_cc[] = { "NZ", "Z", "NC", "C", "PO", "PE", "P", "M" };
|
char *table_cc[] = { "NZ", "Z", "NC", "C", "PO", "PE", "P", "M" };
|
char *table_rp[] = {"BC", "DE", "HL", "SP" };
|
char *table_rp[] = {"BC", "DE", "HL", "SP" };
|
char *table_rp2[] = {"BC","DE","HL","AF"};
|
char *table_rp2[] = {"BC","DE","HL","AF"};
|
char *table_alu[] = {"ADD A,","ADC A,","SUB","SBC A,","AND","XOR","OR","CP"};
|
char *table_alu[] = {"ADD A,","ADC A,","SUB","SBC A,","AND","XOR","OR","CP"};
|
|
char *table_im[] = {"0","0/1", "1", "2", "0", "0/1", "1", "2" };
|
|
|
void z80_decoder::op_print ()
|
void z80_decoder::op_print ()
|
{
|
{
|
printf ("DECODE :[%04x] %s\n", op_addr, op_name);
|
printf ("DECODE :[%04x] %s\n", op_addr, op_name);
|
}
|
}
|
| Line 164... |
Line 165... |
op_name = op_buf;
|
op_name = op_buf;
|
break;
|
break;
|
case 4 :
|
case 4 :
|
op_name = "CALL %04x";
|
op_name = "CALL %04x";
|
state = IMM2;
|
state = IMM2;
|
|
op_print();
|
break;
|
break;
|
case 5 : state = PRE_DD; break;
|
case 5 : state = PRE_DD; break;
|
case 6 : state = PRE_ED; break;
|
case 6 : state = PRE_ED; break;
|
case 7 : state = PRE_FD; break;
|
case 7 : state = PRE_FD; break;
|
}
|
}
|
break;
|
break;
|
|
case 6 :
|
|
sprintf (op_buf, "IM %s", table_im[y]);
|
|
op_name = op_buf;
|
|
break;
|
|
break;
|
|
case 7 :
|
|
switch (y) {
|
|
case 0 : op_name="LD I,A"; break;
|
|
case 1 : op_name="LD R,A"; break;
|
|
case 2 : op_name="LD A,I"; break;
|
|
case 3 : op_name="LD A,R"; break;
|
|
case 4 : op_name="RRD"; break;
|
|
case 5 : op_name="RLD"; break;
|
|
case 6 : op_name="NOP"; break;
|
|
case 7 : op_name="NOP"; break;
|
|
}
|
|
break;
|
}
|
}
|
break;
|
break;
|
}
|
}
|
/*FOR x=0
|
/*FOR x=0
|
z=0
|
z=0
|
| Line 249... |
Line 268... |
op_print();
|
op_print();
|
break;
|
break;
|
case IMM1 :
|
case IMM1 :
|
imm = ((unsigned int) di) & 0xff;
|
imm = ((unsigned int) di) & 0xff;
|
sprintf (op_buf, op_name, imm);
|
sprintf (op_buf, op_name, imm);
|
//printf ("DECODE : %02x %s\n", (int) opcode, op_name);
|
|
op_name = op_buf;
|
op_name = op_buf;
|
op_print();
|
op_print();
|
break;
|
break;
|
}
|
}
|
}
|
}
|
