diff --git a/oswan/source/nec/nec.cpp b/oswan/source/nec/nec.cpp
index 23d8c7f..5a18808 100644
--- a/oswan/source/nec/nec.cpp
+++ b/oswan/source/nec/nec.cpp
@@ -115,20 +115,19 @@ void nec_exit (void)
 
 }
 
+void dump_memory();
 
 
-
-void nec_int(DWORD wektor)
+void nec_int(uint16_t vector)
 {
-
    DWORD dest_seg, dest_off;
 
    if(I.IF)
    {
       i_pushf();
       I.TF = I.IF = 0;
-      dest_off = ReadWord(wektor);
-      dest_seg = ReadWord(wektor+2);
+      dest_off = ReadWord(vector);
+      dest_seg = ReadWord(vector+2);
       PUSH(I.sregs[CS]);
       PUSH(I.ip);
       I.ip = (WORD)dest_off;
@@ -999,6 +998,7 @@ OP( 0x61, i_popa  )
    (void)tmp; // We need to uppop something and need tmp
    CLK(8);
 }
+/* BOUND */
 OP( 0x62, i_chkind  )
 {
    UINT32 low,high,tmp;
@@ -3641,6 +3641,7 @@ OP( 0xfa, i_di    )
 }
 OP( 0xfb, i_ei    )
 {
+   /* STI */
    SetIF(1);
    CLK(4);
 }
diff --git a/oswan/source/nec/nec.h b/oswan/source/nec/nec.h
index 7a8b1b1..efcb04a 100644
--- a/oswan/source/nec/nec.h
+++ b/oswan/source/nec/nec.h
@@ -1,9 +1,8 @@
-BYTE	cpu_readport(BYTE);
-void cpu_writeport(DWORD,BYTE);
-#define cpu_readop cpu_readmem20
-#define cpu_readop_arg cpu_readmem20
-void cpu_writemem20(DWORD,BYTE);
-BYTE cpu_readmem20(DWORD);
+#ifndef __NEC_H_
+#define __NEC_H_
+
+
+#include "necintrf.h"
 
 typedef enum { ES, CS, SS, DS } SREGS;
 typedef enum { AW, CW, DW, BW, SP, BP, IX, IY } WREGS;
@@ -389,3 +388,5 @@ typedef struct
 		di++;												\
 	}														\
 }
+
+#endif /* __NEC_H_ */
\ No newline at end of file
diff --git a/oswan/source/nec/necintrf.h b/oswan/source/nec/necintrf.h
index 539e2d8..361ecfc 100644
--- a/oswan/source/nec/necintrf.h
+++ b/oswan/source/nec/necintrf.h
@@ -1,6 +1,6 @@
 /* ASG 971222 -- rewrote this interface */
-#ifndef __NEC_H_
-#define __NEC_H_
+#ifndef __NECITRF_H_
+#define __NECITRF_H_
 
 
 
@@ -60,10 +60,18 @@ extern const char *v33_info(void *context, int regnum);
 extern unsigned v33_dasm(char *buffer, unsigned pc);
 */
 
-void nec_set_reg(int,unsigned);
+void nec_set_irq_line(int irqline, int state);
+void nec_set_reg(int regnum, uint32_t val);
 int nec_execute(int cycles);
 unsigned nec_get_reg(int regnum);
 void nec_reset (void *param);
-void nec_int(DWORD wektor);
+void nec_int(uint16_t vector);
 
-#endif
+uint8_t cpu_readport(uint8_t);
+void cpu_writeport(uint32_t, uint8_t);
+#define cpu_readop cpu_readmem20
+#define cpu_readop_arg cpu_readmem20
+void cpu_writemem20(uint32_t, uint8_t);
+BYTE cpu_readmem20(uint32_t);
+
+#endif /* __NECITRF_H_ */