Reduce scope of some variables.

Author: giomba

src/crtc.c

@@ -28,7 +28,7 @@ static uint8_t regs[CRTC_REGISTER_COUNT];
 #define REG_CURSOR_L                       15
 #define REG_LIGHT_PEN_H                    16
 #define REG_LIGHT_PEN_L                    17
-unsigned int rselect = 0; // current register selected
+static unsigned int rselect = 0; // current register selected
 
 #define CRTC_NOT_IMPLEMENTED_STR "not implemented\n"
 

src/upd8255.c

@@ -15,7 +15,7 @@
 #define UPD8255_PORTC_REG 2
 
 #define UPD8255_PORTS_COUNT 3
-uint8_t port[UPD8255_PORTS_COUNT];
+static uint8_t port[UPD8255_PORTS_COUNT];
 #define UPD8255_CONTROL_REG 3
 
 #define UPD8255_REG_COUNT 4