1 | /* |
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2 | * MWDUMP Shell Command Implmentation |
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3 | * |
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4 | * Author: Fernando RUIZ CASAS |
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5 | * Work: fernando.ruiz@ctv.es |
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6 | * Home: correo@fernando-ruiz.com |
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7 | * |
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8 | * The license and distribution terms for this file may be |
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9 | * found in the file LICENSE in this distribution or at |
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10 | * http://www.rtems.com/license/LICENSE. |
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11 | * |
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12 | * $Id$ |
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13 | */ |
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14 | |
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15 | #ifdef HAVE_CONFIG_H |
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16 | #include "config.h" |
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17 | #endif |
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18 | |
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19 | #include <ctype.h> |
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20 | #include <stdio.h> |
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21 | #include <string.h> |
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22 | #include <inttypes.h> |
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23 | |
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24 | #include <rtems.h> |
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25 | #include <rtems/shell.h> |
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26 | #include "internal.h" |
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27 | |
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28 | int rtems_shell_main_mwdump( |
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29 | int argc, |
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30 | char *argv[] |
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31 | ) |
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32 | { |
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33 | unsigned char n, m; |
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34 | int max; |
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35 | int res; |
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36 | uintptr_t addr = 0; |
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37 | unsigned char *pb; |
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38 | |
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39 | if (argc>1) |
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40 | addr = rtems_shell_str2int(argv[1]); |
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41 | |
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42 | if (argc>2) { |
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43 | max = rtems_shell_str2int(argv[2]); |
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44 | if (max <= 0) { |
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45 | max = 1; /* print 1 item if 0 or neg. */ |
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46 | res = 0; |
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47 | } |
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48 | else { |
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49 | max--; |
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50 | res = max & 0xf;/* num bytes in last row */ |
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51 | max >>= 4; /* div by 16 */ |
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52 | max++; /* num of rows to print */ |
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53 | if (max > 20) { /* limit to 20 */ |
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54 | max = 20; |
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55 | res = 0xf; /* 16 bytes print in last row */ |
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56 | } |
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57 | } |
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58 | } |
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59 | else { |
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60 | max = 20; |
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61 | res = 0xf; |
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62 | } |
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63 | |
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64 | for (m=0;m<max;m++) { |
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65 | printf("0x%08" PRIXPTR " ",addr); |
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66 | pb = (unsigned char *) addr; |
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67 | for (n=0;n<=(m==(max-1)?res:0xf);n+=2) |
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68 | printf("%04X%c",*((unsigned short*)(pb+n)),n==6?'-':' '); |
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69 | for (;n<=0xf;n+=2) |
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70 | printf(" %c", n==6?'-':' '); |
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71 | for (n=0;n<=(m==(max-1)?res:0xf);n++) { |
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72 | printf("%c", isprint(pb[n]) ? pb[n] : '.'); |
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73 | } |
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74 | printf("\n"); |
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75 | addr += 16; |
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76 | } |
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77 | return 0; |
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78 | } |
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79 | |
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80 | rtems_shell_cmd_t rtems_shell_WDUMP_Command = { |
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81 | "wdump", /* name */ |
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82 | "wdump [address [length]]", /* usage */ |
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83 | "mem", /* topic */ |
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84 | rtems_shell_main_mwdump, /* command */ |
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85 | NULL, /* alias */ |
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86 | NULL /* next */ |
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87 | }; |
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