+
−/*
+
− * This is a machine-oriented memory dump command.  The output is in the
+
− * form of S3 records.
+
− */
+
−
+
−#include <sys/types.h>
+
−#include "types.h"
+
−
+
−void
+
−cmd_memdump_machine(argbulk)
+
−	char *argbulk;
+
−{
+
−	char *argv[3];
+
−	u_long start, length;
+
−	u_long addr;
+
−	u_char srbuf[0x86], cksum;
+
−	int i;
+
−
+
−	if (parse_args(argbulk, 2, 2, argv, 0) < 0)
+
−		return;
+
−	if (parse_hexarg(argv[0], 8, &start) < 0) {
+
−		printf("ERROR: arg1 must be a valid 32-bit hex address\n");
+
−		return;
+
−	}
+
−	if (parse_hexarg(argv[1], 8, &length) < 0) {
+
−	    printf("ERROR: arg2 must be a valid 32-bit hex value (length)\n");
+
−		return;
+
−	}
+
−	if (start & 0x7F || length & 0x7F) {
+
−	   printf("ERROR: implementation limit: 128-byte alignment required\n");
+
−		return;
+
−	}
+
−	srbuf[0] = 0x85;
+
−	for (addr = start; addr < start + length; addr += 0x80) {
+
−		srbuf[1] = addr >> 24;
+
−		srbuf[2] = addr >> 16;
+
−		srbuf[3] = addr >> 8;
+
−		srbuf[4] = addr;
+
−		memcpy(srbuf + 5, addr, 0x80);
+
−		cksum = 0;
+
−		for (i = 0; i < 0x85; i++)
+
−			cksum += srbuf[i];
+
−		srbuf[i] = ~cksum;
+
−		putchar('S');
+
−		putchar('3');
+
−		for (i = 0; i < 0x86; i++)
+
−			printf("%02X", srbuf[i]);
+
−		putchar('\n');
+
−	}
+
−}