int agi_get_keypress_low() {
int k;
while (key_queue_start == key_queue_end) /* block */
agi_timer_low();
key_dequeue(k);
return k;
}
static int win32_get_key (void)
{
int k;
while (!win32_keypress())
win32_new_timer ();
key_dequeue (k);
return k;
}
int main (void) {
uint32_t key;
initialize();
while (1) {
key = get_key1(key_dequeue());
if (key != 0xffffffff) {
if (key >= 0 && key <= 9) { // key 0 ~ 9
keypad_operand(key);
}
else if (key == '=') { // key '='
keypad_result();
}
else if (key == 'x') { // key 'x' erase
erase_fndvalue();
}
else { // key '*', '/', '+', '-'
keypad_operator(key);
}
}
}
}