Commit e4cf1adc806f24d26756fa828e0d7b515a06752d
1 parent
72cc6cfe
added sum command
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1434 c046a42c-6fe2-441c-8c8c-71466251a162
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monitor.c
| @@ -562,6 +562,22 @@ static void do_print(int count, int format, int size, unsigned int valh, unsigne | @@ -562,6 +562,22 @@ static void do_print(int count, int format, int size, unsigned int valh, unsigne | ||
| 562 | term_printf("\n"); | 562 | term_printf("\n"); |
| 563 | } | 563 | } |
| 564 | 564 | ||
| 565 | +static void do_sum(uint32_t start, uint32_t size) | ||
| 566 | +{ | ||
| 567 | + uint32_t addr; | ||
| 568 | + uint8_t buf[1]; | ||
| 569 | + uint16_t sum; | ||
| 570 | + | ||
| 571 | + sum = 0; | ||
| 572 | + for(addr = start; addr < (start + size); addr++) { | ||
| 573 | + cpu_physical_memory_rw(addr, buf, 1, 0); | ||
| 574 | + /* BSD sum algorithm ('sum' Unix command) */ | ||
| 575 | + sum = (sum >> 1) | (sum << 15); | ||
| 576 | + sum += buf[0]; | ||
| 577 | + } | ||
| 578 | + term_printf("%05d\n", sum); | ||
| 579 | +} | ||
| 580 | + | ||
| 565 | typedef struct { | 581 | typedef struct { |
| 566 | int keycode; | 582 | int keycode; |
| 567 | const char *name; | 583 | const char *name; |
| @@ -906,6 +922,8 @@ static term_cmd_t term_cmds[] = { | @@ -906,6 +922,8 @@ static term_cmd_t term_cmds[] = { | ||
| 906 | "keys", "send keys to the VM (e.g. 'sendkey ctrl-alt-f1')" }, | 922 | "keys", "send keys to the VM (e.g. 'sendkey ctrl-alt-f1')" }, |
| 907 | { "system_reset", "", do_system_reset, | 923 | { "system_reset", "", do_system_reset, |
| 908 | "", "reset the system" }, | 924 | "", "reset the system" }, |
| 925 | + { "sum", "ii", do_sum, | ||
| 926 | + "addr size", "compute the checksum of a memory region" }, | ||
| 909 | { NULL, NULL, }, | 927 | { NULL, NULL, }, |
| 910 | }; | 928 | }; |
| 911 | 929 |