[thirdparty/binutils-gdb.git] / sim / erc32 / examples / hello.c

/* A small test program to demonstrate use of UARTs and clock */


#define RXADATA (int *) 0x01F800E0
#define RXBDATA (int *) 0x01F800E4
#define RXSTAT (int *) 0x01F800E8

int write (fd, buf, nbyte)
int fd;
char *buf;
int nbyte;
{

        int *rxadata;
        int rxmask;
	int nsave;
	volatile *rxstat;

	nsave = nbyte;

	switch (fd) {
		case 0 : 
			rxadata = RXADATA;
			rxmask = 6;
			break;
		case 1 : 
			rxadata = RXBDATA;
			rxmask = 0x60000;
			break;
		default:
			return (-1);
	}
	rxstat = RXSTAT;
        while (nbyte > 0) {
		while ((*rxstat & rxmask) == 0);
		*rxadata = *buf;
		buf++;
		nbyte--;
	}
	return (nsave);
}

int read (fd, buf, nbyte)
int fd;
char *buf;
int nbyte;
{

        int rxmask,*rxadata;
	int nsave;
	volatile *rxstat;

	nsave = nbyte;
	switch (fd) {
		case 0 : 
			rxadata = RXADATA;
			rxmask = 1;
			break;
		case 1 : 
			rxadata = RXBDATA;
			rxmask = 0x10000;
			break;
		default:
			return (-1);
	}
	rxstat = RXSTAT;
        while (nbyte > 0) {
		while ((*rxstat & rxmask) == 0);
		*buf =  *rxadata;
		buf++;
                nbyte--;
	}
	return (nsave);
}

char *
puts(s)
char *s;
{
    while (*s) write(0,s++,1);
}

main()
{
    puts("Hello world!\n");
}
Commit	Line	Data
f4d2ff34 RS	1	/* A small test program to demonstrate use of UARTs and clock */
	2
	3
	4	#define RXADATA (int *) 0x01F800E0
	5	#define RXBDATA (int *) 0x01F800E4
	6	#define RXSTAT (int *) 0x01F800E8
	7
	8	int write (fd, buf, nbyte)
	9	int fd;
	10	char *buf;
	11	int nbyte;
	12	{
	13
	14	int *rxadata;
	15	int rxmask;
	16	int nsave;
	17	volatile *rxstat;
	18
	19	nsave = nbyte;
	20
	21	switch (fd) {
	22	case 0 :
	23	rxadata = RXADATA;
	24	rxmask = 6;
	25	break;
	26	case 1 :
	27	rxadata = RXBDATA;
	28	rxmask = 0x60000;
	29	break;
	30	default:
	31	return (-1);
	32	}
	33	rxstat = RXSTAT;
	34	while (nbyte > 0) {
	35	while ((*rxstat & rxmask) == 0);
	36	rxadata = buf;
	37	buf++;
	38	nbyte--;
	39	}
	40	return (nsave);
	41	}
	42
	43	int read (fd, buf, nbyte)
	44	int fd;
	45	char *buf;
	46	int nbyte;
	47	{
	48
	49	int rxmask,*rxadata;
	50	int nsave;
	51	volatile *rxstat;
	52
	53	nsave = nbyte;
	54	switch (fd) {
	55	case 0 :
	56	rxadata = RXADATA;
	57	rxmask = 1;
	58	break;
	59	case 1 :
	60	rxadata = RXBDATA;
	61	rxmask = 0x10000;
	62	break;
	63	default:
	64	return (-1);
65	}
66	rxstat = RXSTAT;
67	while (nbyte > 0) {
68	while ((*rxstat & rxmask) == 0);
69	buf = rxadata;
70	buf++;
71	nbyte--;
72	}
73	return (nsave);
74	}
75
76	char *
77	puts(s)
78	char *s;
79	{
80	while (*s) write(0,s++,1);
81	}
82
83	main()
84	{
85	puts("Hello world!\n");
86	}
87