@@ -45,6 +45,7 @@ typedef struct {

 Program p;

 static int litlast = 0;

+static int jsrlast = 0;

 /* clang-format off */

@@ -199,9 +200,25 @@ writebyte(Uint8 b)

 	p.data[p.ptr++] = b;

 	p.length = p.ptr;

 	litlast = 0;

+	jsrlast = 0;

 	return 1;

 }

+static int

+writeopcode(char *w)

+{

+	Uint8 res;

+	if(jsrlast && scmp(w, "JMP2r", 5)) { /* combine JSR2 JMP2r */

+		p.data[p.ptr - 1] = findopcode("JMP2");

+		jsrlast = 0;

+		return 1;

+	}

+	res = writebyte(findopcode(w));

+	if(scmp(w, "JSR2", 4))

+		jsrlast = 1;

+	return res;

+}

+

 static int

 writeshort(Uint16 s, int lit)

 {

@@ -329,7 +346,7 @@ parse(char *w, FILE *f)

 	default:

 		/* opcode */

 		if(findopcode(w) || scmp(w, "BRK", 4)) {

-			if(!writebyte(findopcode(w))) return 0;

+			if(!writeopcode(w)) return 0;

 		}

 		/* raw byte */

 		else if(sihx(w) && slen(w) == 2) {