#include <io.h>

static char serial_data[2];

u8 io_read(u16 address){
    if(address == 0xFF01) {
        return serial_data[0];
    }

    if(address == 0xFF02) {
        return serial_data[1];
    }

    printf("UNSUPPORTED io_read(%04X)\n", address);
    return 0;
}


void io_write(u16 address, u8 value){
    if(address == 0xFF01) {
        serial_data[0] = value;
        return;
    }

    if(address == 0xFF02) {
        serial_data[1] = value;
        return;
    }

    printf("UNSUPPORTED io_write(%04X)\n", address);
}