FreeCalypso > hg > freecalypso-tools
view target-utils/libcommon/cmd_memdump_machine.c @ 416:30f6d1c32c6f
doc/Flash-boot-defect article removed (no longer relevant)
This article is no longer relevant because the issue in question
only affected one (1) defective FCDEV3B board which was not
and never will be sold.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Fri, 26 Oct 2018 07:11:08 +0000 |
parents | 9214118ae941 |
children |
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/* * 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'); } }