Kill some unnecessary uses of volatile

src/meta/debug.c

@@ -3563,7 +3563,7 @@ void init_lex (char *str, int size) {
 #define WONT_EXECUTE 0
     static volatile void *hack_warnings = &hack_warnings;
     if (hack_warnings == WONT_EXECUTE) {
-        // flex defines these, but we don't use 'em ...
+        // this section is just here to kill warnings about unused input() and yyunput()
         char hack[2];
         yyunput('\0', hack);
         input();

src/meta/debug.h

@@ -19,7 +19,7 @@
 
 #include "common.h"
 
-extern volatile bool is_debugging;
+extern bool is_debugging;
 
 typedef enum {
     addr_implied = 0,

src/meta/debug.l

@@ -998,7 +998,7 @@ void init_lex (char *str, int size) {
 #define WONT_EXECUTE 0
     static volatile void *hack_warnings = &hack_warnings;
     if (hack_warnings == WONT_EXECUTE) {
-        // flex defines these, but we don't use 'em ...
+        // this section is just here to kill warnings about unused input() and yyunput()
         char hack[2];
         yyunput('\0', hack);
         input();

src/meta/debugger.c

@@ -37,7 +37,7 @@ static bool input_deterministically = false; // slows down testing ...
 static stepping_struct_s stepping_struct = { 0 };
 static unsigned int stepping_timeout = 0;
 
-volatile bool is_debugging = false;
+bool is_debugging = false;
 
 extern pthread_mutex_t interface_mutex;
 extern pthread_cond_t cpu_thread_cond;

src/test/testcpu.c

@@ -1429,7 +1429,7 @@ TEST test_BPL(int8_t off, bool flag, uint16_t addrs) {
     PASS();
 }
 
-TEST test_BRA(volatile int8_t off, volatile bool flag, volatile uint16_t addrs) {
+TEST test_BRA(int8_t off, bool flag, uint16_t addrs) {
     uint8_t flags = 0x0;
 
     run_args.cpu65_pc = addrs;

src/video/gltouchjoy_joy.c

@@ -19,7 +19,7 @@ static GLTouchJoyVariant joyVariant = { 0 };
 
 static struct {
     video_frame_callback_fn frameCallback;
-    volatile unsigned long spinlock;
+    unsigned long spinlock;
     unsigned long tapDelayFrameCount;
 
     interface_touch_event_t currEventType;

src/video/gltouchjoy_kpad.c

@@ -64,7 +64,7 @@ typedef struct subvariant_s {
 static struct {
     video_frame_callback_fn frameCallback;
 
-    volatile unsigned long spinlock;
+    unsigned long spinlock;
 
     subvariant_s axis;
     subvariant_s butt;