/*
* === FUNCTION ======================================================================
* Name: parse_input
* Description: separates a line of input into tokens. Passes tokens off for additional
* processing.
* =====================================================================================
*/
void
parse_input (char *input, size_t size)
{
char s[(int)size];
strcpy(s, input);
char *op_code = strtok(s, " ");
char *raw_arg_a = strtok(NULL, " ");
char *raw_arg_b = strtok(NULL, " ");
char *raw_arg_c = strtok(NULL, " ");
int argc = 0;
struct arg_t args[3];
if(raw_arg_a != 0) {
args[0] = parse_arg(raw_arg_a);
argc++;
}
if(raw_arg_b != 0) {
args[1] = parse_arg(raw_arg_b);
argc++;
}
if(raw_arg_c != 0) {
args[2] = parse_arg(raw_arg_b);
argc++;
}
op_code = trim_whitespace(op_code);
str_to_lower(op_code);
unsigned long op_hashed = hash(op_code);
assemble_op(op_hashed, args, argc);
} /* ----- end of function parse_input ----- */
int assemble_token(enum Token token)
{
switch (token)
{
case Addr:
{
if (curad == 0) text_addr = token_num;
curad = token_num;
return 1;
}
case EndL:
return 1;
case Symbol:
{
int opn;
if ((opn = search_op(token_buf)) != -1)
assemble_op(opcodes[opn]);
else if ((opn = search_pop(token_buf)) != -1)
assemble_pop((enum POp)opn);
else if (token_buf[0] == 'o' && token_buf[1] == 'p' && token_buf[2] == 'c')
{
int op1 = (int)strtoul(token_buf + 3, &dummy, 10);
uint64_t num;
if (!parse_value(&num)) return 0;
assemble_pcd(op1, (int)num);
}
else
return 0;
return 1;
}
}
return 0;
}
