view target-utils/libcommon/cmd_r8.c @ 976:ca65f5adf1af

rvinterf: print old ASCII GPF traces emitted by 20020917 firmware on D-Sample
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Sun, 29 Nov 2015 05:22:41 +0000
parents f4fc449a64ea
children
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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);
}