Remove bogus var from ea64v.h, add quit handler to flush trace buffers

ea64v.h

@@ -10,7 +10,6 @@ static inline ea_t ea64v (unsigned short inst, ea_t earp) {
   unsigned short br;
   unsigned short i;
   unsigned short x;
-  unsigned short y;
   unsigned short xok;
   unsigned short a;
   unsigned short ixy;
@@ -49,7 +48,7 @@ static inline ea_t ea64v (unsigned short inst, ea_t earp) {
 
     opcode = ((inst & 036000) != 032000) ? ((inst & 036000) >> 4) : ((inst & 076000) >> 4);
     opcode |= ((inst >> 2) & 3);         /* opcode extension */
-    TRACE(T_EAV, " new opcode=%#05o, y=%d, br=%d, ixy=%d, xok=%d\n", opcode, (y != 0), br, ixy, xok);
+    TRACE(T_EAV, " new opcode=%#05o, br=%d, ixy=%d, xok=%d\n", opcode, br, ixy, xok);
 #endif
 
     ea_s = getcrs16(PBH+br*2) | (ea_s & RINGMASK16);

em.c

@@ -1635,6 +1635,10 @@ void sensorcheck () {
   sensorabort = 1;
 }
 
+void sigquit() {
+  fatal("Quit");
+}
+
 /* machine check handler, called with check vector locations
    The first arg is used when PX is disabled, the 2nd when PX is enabled. */
 
@@ -4516,6 +4520,8 @@ main (int argc, char **argv) {
 
   signal (SIGTERM, sensorcheck);
 
+  signal (SIGQUIT, sigquit);
+
 #ifndef NOTRACE
 
   /* open trace log */