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Add hexdump function for vm_segment

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Peter Evans 2018-03-09 16:45:20 -06:00
parent 1ff5d17f19
commit 87c7aa9249
2 changed files with 32 additions and 0 deletions
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1
include/vm_segment.h
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@ -72,6 +72,7 @@ extern vm_8bit vm_segment_get(vm_segment *, size_t);
extern vm_segment *vm_segment_create(size_t);
extern void *vm_segment_get_map_machine();
extern void vm_segment_free(vm_segment *);
extern void vm_segment_hexdump(vm_segment *, FILE *, size_t, size_t);
extern void vm_segment_set_map_machine(void *);
#endif

31
src/vm_segment.c
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@ -7,6 +7,7 @@
* etc.
*/
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -352,3 +353,33 @@ vm_segment_set16(vm_segment *segment, size_t addr, vm_16bit value)
// code.
return err;
}
void
vm_segment_hexdump(vm_segment *seg, FILE *stream, size_t from, size_t to)
{
char nbuf[51], sbuf[17];
int ni = 0, si = 0;
int bytes = 0;
vm_8bit byte;
while (from < to) {
byte = vm_segment_get(seg, from);
ni += sprintf(nbuf + ni, "%02X ", byte);
si += sprintf(sbuf + si, "%c", isprint(byte) ? byte : '.');
from++;
bytes++;
if (bytes == 8) {
ni += sprintf(nbuf + ni, " ");
}
if (bytes >= 16) {
fprintf(stream, "%08zX %s [%s]\n", from - bytes, nbuf, sbuf);
bytes = 0;
ni = 0;
si = 0;
}
}
}