FreeCalypso > hg > freecalypso-tools
view target-utils/libcommon/cmd_memdump_machine.c @ 163:568e2a2b49c8
tiaud-decomp utility written
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 18 Mar 2017 05:47:32 +0000 |
parents | 9214118ae941 |
children |
line wrap: on
line source
/* * 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'); } }