view target-utils/libcommon/cmd_r8.c @ 776:fac3176de18d

simagent: bare Tx implemented
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 12 Mar 2021 23:36:46 +0000
parents e7502631a0f9
children
line wrap: on
line source

/*
 * r8 hexaddr -- read an 8-bit register or memory location
 */

#include <sys/types.h>
#include "types.h"

void
cmd_r8(argbulk)
	char *argbulk;
{
	char *argv[2];
	u_long addr;

	if (parse_args(argbulk, 1, 1, argv, 0) < 0)
		return;
	if (parse_hexarg(argv[0], 8, &addr) < 0) {
		printf("ERROR: argument must be a valid 32-bit hex address\n");
		return;
	}
	printf("%02X\n", *(volatile u8 *)addr);
}