diff --git a/Makefile b/Makefile
index 6709089..3d5e89a 100644
--- a/Makefile
+++ b/Makefile
@@ -48,6 +48,9 @@ rtdisasm: $(RTDISASM_OBJ) $(RTDISASM_DEPS)
 	$(PYTHON) genc.py xml/raw/x86/Intel/AZ.xml | $(CC) -x c $(CFLAGS) -c -o $(OBJ_DIR)/rtdisasm_table.o -
 	$(AR) -crs $(BIN_DIR)/librtdisasm.a $(RTDISASM_OBJ) $(OBJ_DIR)/rtdisasm_table.o
 
+$(OBJ_DIR)/rtdisasm_test.o: $(SRC_DIR)/rtdisasm_test.c
+	$(CC) $(CFLAGS) -mavx -c -o $@ $<
+
 rtdisasm_test: $(RTDISASM_TEST_OBJ) $(RTDISASM_TEST_DEPS)
 	$(CC) $(LDFLAGS) -o $(BIN_DIR)/$@ $(RTDISASM_TEST_OBJ) $(LIB_DIR)/librtdisasm.a
 
diff --git a/include/rtdisasm.h b/include/rtdisasm.h
index 4c100b8..ffe357f 100644
--- a/include/rtdisasm.h
+++ b/include/rtdisasm.h
@@ -4,18 +4,18 @@
 #include <stdint.h>
 #include "rtdisasm_table.h"
 
-// "code" should point to place with machine instructions, and "size"
+// "code" should point to place with machine instructions, and "limit"
 // limits the area of analyze, so no segfaults would be triggered on
 // page boundaries. if "found" is non-zero, on instruction hit it
 // would be set to found instruction table entry
-// returns 0 when no instruction was found, -1 when size limit reached
+// returns 0 when no instruction was found, -1 when limit reached
 // and non-negative-non-zero number of actual instruction size
-int rtdisasm_analyze_single(const uint8_t* code, unsigned size, const instruction_t** found);
+int rtdisasm_analyze_single(const uint8_t* code, unsigned limit, const instruction_t** found);
 
-// analyze all instructions at "code" until "size" limit is reached or
+// analyze all instructions at "code" until "limit" is reached or
 // instruction of "rt_target" equal was found. returns -1 when size limit hit,
 // 0 if rtdisasm encountered unknown instruction
 // and non-zero integer is offset from "code"
-int rtdisasm_find_target(const uint8_t* code, unsigned size, unsigned rt_target);
+int rtdisasm_find_target(const uint8_t* code, unsigned limit, unsigned rt_target);
 
 #endif
\ No newline at end of file
diff --git a/src/rtdisasm.c b/src/rtdisasm.c
index 3f1121d..986ad07 100644
--- a/src/rtdisasm.c
+++ b/src/rtdisasm.c
@@ -265,10 +265,10 @@ const instruction_t* is_special_instruction(const uint8_t* code)
     return NULL;
 }
 
-int rtdisasm_analyze_single(const uint8_t* code, unsigned size, const instruction_t** found)
+int rtdisasm_analyze_single(const uint8_t* code, unsigned limit, const instruction_t** found)
 {
     const uint8_t* cur = code;
-    const uint8_t* const end = code + size;
+    const uint8_t* const end = code + limit;
     if (cur == end) return -1;
 
     // look for any special instructions first
@@ -366,11 +366,11 @@ int rtdisasm_analyze_single(const uint8_t* code, unsigned size, const instructio
     return (int)((uintptr_t)cur-(uintptr_t)code);
 }
 
-int rtdisasm_find_target(const uint8_t* code, unsigned size, unsigned rt_target)
+int rtdisasm_find_target(const uint8_t* code, unsigned limit, unsigned rt_target)
 {
     const uint8_t* cur = code;
-    const uint8_t* const end = code + size;
-    unsigned remaining = size;
+    const uint8_t* const end = code + limit;
+    unsigned remaining = limit;
     if (cur == end) return -1;
 
     do {
diff --git a/src/rtdisasm_test.c b/src/rtdisasm_test.c
index 395a369..32666cf 100644
--- a/src/rtdisasm_test.c
+++ b/src/rtdisasm_test.c
@@ -1,4 +1,5 @@
 #include "rtdisasm.h"
+#include <immintrin.h>
 #include <stdio.h>
 
 extern void test_1();
@@ -29,6 +30,17 @@ static unsigned int test_2(unsigned char *message)
 }
 static void test_2_end() {}
 
+// TEST 3 - VEX instructins
+static void test_3()
+{
+    __m256 evens = _mm256_set_ps(2.0, 4.0, 6.0, 8.0, 10.0, 12.0, 14.0, 16.0);
+    __m256 odds = _mm256_set_ps(1.0, 3.0, 5.0, 7.0, 9.0, 11.0, 13.0, 15.0);
+
+    __m256 result = _mm256_sub_ps(evens, odds);
+    __asm__("nop"); // TARGET
+}
+static void test_3_end() {}
+
 int main()
 {
     printf("== TEST 1 ==\n");
@@ -51,5 +63,11 @@ int main()
 
     printf("test2 %d\n", rtdisasm_find_target((const uint8_t*)test_2, size, RT_TARGET_NOP));
 
+    printf("\n== TEST 3 ==\n");
+    size = (uintptr_t)test_3_end - (uintptr_t)test_3;
+    printf("size %lu\n", size);
+
+    printf("test3 %d\n", rtdisasm_find_target((const uint8_t*)test_3, size, RT_TARGET_NOP));
+
     return 0;
 }
\ No newline at end of file