Magic-Mirror/radare2
1
0
Fork 0
mirror of https://github.com/radareorg/radare2.git synced 2024-12-30 01:34:23 +00:00
Code Issues Actions 7 Packages Projects Releases Wiki Activity

avr_anal_hex first esil

Browse Source
This commit is contained in:
condret 2015-10-14 19:02:54 +00:00
parent 6be6f0a862
commit 99e8df404e
1 changed files with 28 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
libr/anal/p/anal_avr.c
View File

@ -1,4 +1,4 @@
/* radare - LGPL - Copyright 2011-2015 - pancake, Roc Valles */
/* radare - LGPL - Copyright 2011-2015 - pancake, Roc Valles, condret */
#if 0
http://www.atmel.com/images/atmel-0856-avr-instruction-set-manual.pdf
@ -18,13 +18,14 @@ https://en.wikipedia.org/wiki/Atmel_AVR_instruction_set
static int avr_op(RAnal *anal, RAnalOp *op, ut64 addr, const ut8 *buf, int len) {
short ofst;
int imm = 0;
int imm = 0, d;
ut8 kbuf[2];
ut16 ins = AVR_SOFTCAST(buf[0],buf[1]);
char *arg, str[32];
if (op == NULL)
return 2;
op->size = avrdis (str, addr, buf, len);
r_strbuf_init (&op->esil);
arg = strchr (str, ' ');
if (arg) {
arg++;
@ -91,9 +92,30 @@ static int avr_op(RAnal *anal, RAnalOp *op, ut64 addr, const ut8 *buf, int len)
op->type = R_ANAL_OP_TYPE_CMP;
op->cycles = 1;
}
if (((buf[0] & 0xf) == 4) && ((buf[1] & 0xfe) == 0x92)) {
op->type = R_ANAL_OP_TYPE_XCHG;
op->cycles = 1;
if ((buf[1] & 0xfe) == 0x92) {
d = ((buf[0] & 0xf0) >> 4) | ((buf[1] & 1) << 4);
switch (buf[0] & 0xf) {
case 4: //XCH
op->type = R_ANAL_OP_TYPE_XCHG;
op->cycles = 2;
r_strbuf_setf (&op->esil, "r%d,Z,^=[1],Z,[1],r%d,^=,r%d,Z,^=[1]", d, d, d);
break;
case 5: //LAS
op->type = R_ANAL_OP_TYPE_LOAD;
op->cycles = 2;
r_strbuf_setf (&op->esil, "r%d,Z,[1],|,Z,[1],r%d,=,Z,=[1]", d, d);
break;
case 6: //LAC
op->type = R_ANAL_OP_TYPE_LOAD;
op->cycles = 2;
r_strbuf_setf (&op->esil, "r%d,Z,[1],&,Z,[1],-,Z,[1],r%d,=,Z,=[1]", d, d);
break;
case 7: //LAT
op->type = R_ANAL_OP_TYPE_LOAD;
op->cycles = 2;
r_strbuf_setf (&op->esil, "r%d,Z,[1],^,Z,[1],r%d,=,Z,=[1]", d, d);
break;
}
}
// 0xf0 - 0xf7 BR
if ((buf[1] >= 0xf0 && buf[1] <= 0xf8)) {
@ -300,6 +322,7 @@ RAnalPlugin r_anal_plugin_avr = {
.desc = "AVR code analysis plugin",
.license = "LGPL3",
.arch = R_SYS_ARCH_AVR,
.esil = true,
.bits = 8|16, // 24 big regs conflicts
.op = &avr_op,
.set_reg_profile = &set_reg_profile,