static void Jtypei(char *line, int k, int *macode){
int machCode = 0;
int regA = line[REGAF] - '0';
int regB = line[REGBF] - '0';
machCode |= OPCODE(k)|REGA(regA)|REGB(regB);
///itoa(machCode, *macode, 10);
*macode = machCode;
}
/* flush serial input queue. returns 0 on success or negative error
* number otherwise
*/
static int serial_flush_input(void)
{
volatile u32 tmp;
/* keep on reading as long as the receiver is not empty */
while(UTRSTAT0&0x01) {
tmp = REGB(URXH0);
}
return 0;
}
static void Rtypei(char *line, int k, int *macode){
int machCode = 0;///Clear this 32 bits integer whole zero
int regA = line[REGAF] - '0';
int regB = line[REGBF] - '0';
int destReg = line[DESTREGF] - '0';
machCode |= OPCODE(k)|REGA(regA)|REGB(regB)|DESTR(destReg);
///itoa(machCode, *macode, 10);///TRY this offical conversion function itoa
*macode = machCode;
}
static void Itypei(char *line, int k, int *macode, int addr2){
int machCode = 0;///like Rtypei
int i;
int addr;
///int tmp;
unsigned short offset;
char labelname[LABLEN + 1] = {'\0',};
if (isalpha(line[LABELF])){///it's a label
for(i = 0; !isspace(line[LABELF + i]) && line[LABELF + i] != '\0'; i++)
labelname[i] = line[LABELF + i];
labelname[i + 1] = '\0';
if ( (addr = addrOflabel(labelname)) >= 0){
///tmp = addr - addr2 - 1;
if(addr >= addr2)
offset = (unsigned short)(addr - addr2);
else
offset = (unsigned short)((~(-(addr - addr2 -1)))+1);
}
else
err_sys("Label undefined");
}
else{///it's a numberic
int tmpnum;
char charnum[DECLEN];
for(i = 0; !isspace(line[OFFSETF + i]) && line[OFFSETF + i] != '\0'; i++)
charnum[i] = line[OFFSETF + i];
charnum[i + 1] = '\0';
tmpnum = atoi(charnum);
/// printf("tmpnum = %d\n", tmpnum);
if(tmpnum >= 0)
offset = (unsigned short)tmpnum;
else
offset = (unsigned short) ((~(-tmpnum))+1) ;
}///end else
int regA = line[REGAF] - '0';
int regB = line[REGBF] - '0';
machCode |= OPCODE(k)|REGA(regA)|REGB(regB)|offset;
///itoa(machCode, *macode, 10);
*macode = machCode;
}
