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Compute the opcode operand index in the bit editor ##visual

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pancake 2023-02-13 22:36:18 +01:00 committed by pancake
parent 96eee63285
commit bfd2026327
2 changed files with 68 additions and 3 deletions
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67
libr/core/vmenus.c
View File

@ -361,6 +361,35 @@ beach:
return true;
}
static int compare_mnemonics(const char *a , const char *b) {
if (!a || !b) {
return 0;
}
char *sa = strdup (a);
char *sb = strdup (b);
r_str_replace_ch (sa, ' ', ',', 0);
r_str_replace_ch (sb, ' ', ',', 0);
RList *la = r_str_split_list (sa, ",", 0);
RList *lb = r_str_split_list (sb, ",", 0);
int i = 0;
for (i = 0; i < 10; i++) {
char *wa = r_list_get_n (la, i);
char *wb = r_list_get_n (lb, i);
if (!wa || !wb) {
i = 0;
break;
}
if (strcmp (wa, wb)) {
break;
}
}
r_list_free (la);
r_list_free (lb);
free (sa);
free (sb);
return i;
}
R_API bool r_core_visual_bit_editor(RCore *core) {
const int nbits = sizeof (ut64) * 8;
bool colorBits = false;
@ -502,12 +531,48 @@ R_API bool r_core_visual_bit_editor(RCore *core) {
str_pos[46] = ' ';
str_pos[55] = ' ';
str_pos[64] = ' ';
r_cons_printf ("pos: %s\n", str_pos);
r_cons_printf ("cur: %s\n", str_pos);
{
r_cons_printf ("pos: ");
RAnalOp op;
analopType = analop.type & R_ANAL_OP_TYPE_MASK;
for (i = 0; i < 8; i++) {
ut8 *byte = buf + i;
if (i == 4) {
r_cons_print ("| ");
}
if (colorBits && i >= analop.size) {
r_cons_print (Color_RESET);
colorBits = false;
}
for (j = 0; j < 8; j++) {
bool bit = R_BIT_CHK (byte, 7 - j);
r_anal_op_init (&op);
ut8 newbuf[sizeof (ut64)] = {0};
memcpy (&newbuf, &buf, sizeof (ut64));
ut8 *newbyte = newbuf + i;
if (bit) {
newbuf[i] = R_BIT_UNSET (newbyte, 7 - j);
} else {
newbuf[i] = R_BIT_SET (newbyte, 7 - j);
}
r_anal_op_set_bytes (&op, core->offset + cur, newbuf, sizeof (newbuf));
(void)r_anal_op (core->anal, &op, core->offset + cur, newbuf, sizeof (ut64), R_ARCH_OP_MASK_ESIL | R_ARCH_OP_MASK_DISASM);
// r_cons_printf ("%d %s\n%d %s\n\n", (i*8) + j, analop.mnemonic, (i*8)+j, op.mnemonic);
int word_change = compare_mnemonics (analop.mnemonic, op.mnemonic);
r_anal_op_fini (&op);
r_cons_printf ("%d", word_change);
}
r_cons_print (" ");
}
r_cons_newline ();
}
const char *vi = r_config_get (core->config, "cmd.vprompt");
if (R_STR_ISNOTEMPTY (vi)) {
memcpy (core->block, buf, 8);
r_core_cmd0 (core, vi);
}
r_cons_newline ();
{
ut8 *o = core->block;
int bs = core->blocksize;

4
libr/include/r_types.h
View File

@ -363,8 +363,8 @@ static inline void *r_new_copy(int size, void *data) {
((char *)(((size_t)(v) + (t - 1)) \
& ~(t - 1)))
#define R_BIT_SET(x,y) (((ut8*)x)[y>>4] |= (1<<(y&0xf)))
#define R_BIT_UNSET(x,y) (((ut8*)x)[y>>4] &= ~(1<<(y&0xf)))
#define R_BIT_SET(x,y) (((ut8*)x)[(y)>>4] |= (1<<((y)&0xf)))
#define R_BIT_UNSET(x,y) (((ut8*)x)[(y)>>4] &= ~(1<<((y)&0xf)))
#define R_BIT_TOGGLE(x, y) ( R_BIT_CHK (x, y) ? \
R_BIT_UNSET (x, y): R_BIT_SET (x, y))