Subversion Repositories potato

// The Potato Processor Benchmark Applications

// (c) Kristian Klomsten Skordal 2015 <kristian.skordal@wafflemail.net>

// Report bugs and issues on <http://opencores.org/project,potato,bugtracker>

#include <stdarg.h>

#include <stdbool.h>

#include "platform.h"

#include "uart.h"

void uart_puts(volatile uint32_t * base, const char * s)

{

        for(int i = 0; s[i] != 0; ++i)

                uart_putc(base, s[i]);

}

void uart_putc(volatile uint32_t * base, char c)

{

        // Wait until there is room in the transmit buffer:

        while(base[UART_STATUS >> 2] & (1 << UART_STATUS_TXBUF_FULL));

        base[UART_TX >> 2] = c & 0xff;

}

void uart_puth(volatile uint32_t * base, uint32_t n)

{

        static const char * hex_digits = "0123456789abcdef";

        uart_putc(base, '0');

        uart_putc(base, 'x');

        for(int i = 28; i >= 0; i -= 4)

                uart_putc(base, hex_digits[(n >> i) & 0xf]);

}