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- #include <stdlib.h>
- #include <stdio.h>
- #include <fcntl.h>
- #include <unistd.h>
-
- #include "common.h"
-
- /* Read specified number of bytes at specified memory address through a Forth
- * remote shell and dump it to stdout.
- */
-
- int main(int argc, char **argv)
- {
- if (argc != 4) {
- fprintf(stderr, "Usage: ./memdump device memptr bytecount\n");
- return 1;
- }
- unsigned int memptr = strtol(argv[2], NULL, 16);
- unsigned int bytecount = strtol(argv[3], NULL, 16);
- fprintf(stderr, "memptr: 0x%04x bytecount: 0x%04x.\n", memptr, bytecount);
- if (memptr+bytecount > 0xffff) {
- fprintf(stderr, "memptr+bytecount out of range.\n");
- return 1;
- }
- if (!bytecount) {
- // nothing to spit
- return 0;
- }
-
- int fd = open(argv[1], O_RDWR|O_NOCTTY);
- char s[0x30];
- sprintf(s, ": _ 0x%04x 0x%04x DO I @ .x LOOP ; _", memptr+bytecount, memptr);
- sendcmd(fd, s);
-
- for (int i=0; i<bytecount; i++) {
- read(fd, s, 2); // read hex pair
- s[2] = 0; // null terminate
- unsigned char c = strtol(s, NULL, 16);
- putchar(c);
- }
- read(fd, s, 2); // read prompt
- sendcmdp(fd, "FORGET _");
- return 0;
- }
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