add system_t stuff to irq

avr/usbload/system.h

@@ -24,5 +24,20 @@
 #define __SYSTEM_H__
 
 
+
+typedef struct system_t {
+    enum bus_mode_e   { MODE_AVR, MODE_SNES } bus_mode;
+    enum rom_mode_e   { LOROM, HIROM } rom_mode;
+    enum reset_line_e { RESET_OFF, RESET_ON } reset_line;
+    enum irq_line_e   { IRQ_ON, IRQ_OFF } irq_line;
+    enum wr_line_e    { WR_DISABLE, WR_ENABLE } wr_line;
+    enum reset_irq_e   { RESET_IRQ_OFF, RESET_IRQ_ON } reset_irq;
+
+    uint8_t snes_reset_count;
+    uint8_t avr_reset_count;
+} system_t;
+
 void system_init(void);
+
+
 #endif