#include "uart.h"

#include <stdint.h>

void write_cstring(const char* string);
void write_char(char c);


int main() {
    for (;;) {
        write_char('H');
        write_char('e');
        write_char('l');
        write_char('l');
        write_char('o');
        write_char(' ');
        write_char('W');
        write_char('o');
        write_char('r');
        write_char('l');
        write_char('d');
        write_char('!');
        write_char('\n');
        write_char('\r');
    }
}


void write_char(char c) {
    while (!UART0->TXEMPTY);

    // Wait for room to clear up
    if (!UART0->TXFULL) {
        UART0->RXTX = c;
    }
}
void write_cstring(const char* string) {
    int i = 0;

    for (;;) {
        // Return at end of string
        if (string[i] == 0) {
            return;
        }

        // Wait for room to clear up
        if (!UART0->TXFULL) {
            UART0->RXTX = string[i];
        }

        i += 1;
    }

}