From f65442bb4a6c0b38229ea46b035144f64ce008ee Mon Sep 17 00:00:00 2001
From: Fedor Sakharov <fedor.sakharov@gmail.com>
Date: Mon, 24 Mar 2014 21:02:27 +0400
Subject: [PATCH] cr16: fix biti command

---
 libr/asm/arch/cr16/cr16_disas.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/libr/asm/arch/cr16/cr16_disas.c b/libr/asm/arch/cr16/cr16_disas.c
index c1989bf083..e727bde35f 100644
--- a/libr/asm/arch/cr16/cr16_disas.c
+++ b/libr/asm/arch/cr16/cr16_disas.c
@@ -1125,13 +1125,17 @@ int cr16_decode_biti(const ut8 *instr, struct cr16_cmd *cmd)
 		return -1;
 	}
 
+	reg = cr16_get_dstreg(c);
+	position = cr16_get_srcreg(c);
+
+	if (!(reg & 0x6)) {
+		return -1;
+	}
+
 	snprintf(cmd->instr, CR16_INSTR_MAXLEN - 1, "%s%c",
 			ops_biti[(c >> 6) & 0x3],
 			cr16_get_opcode_i(c) ? 'w' : 'b');
 
-	reg = cr16_get_dstreg(c);
-	position = cr16_get_srcreg(c);
-
 	switch (((c >> 13) & 0x2) | (c & 0x1)) {
 	case 0x0:
 		ret = 4;