@@ -120,7 +120,7 @@ uxn_eval(Uxn *u, Uint16 vec)

 			/* Arithmetic */

 			case 0x18: /* ADD */ a = pop(u->src), b = pop(u->src); push(u->src, b + a); break;

 			case 0x19: /* SUB */ a = pop(u->src), b = pop(u->src); push(u->src, b - a); break;

-			case 0x1a: /* MUL */ a = pop(u->src), b = pop(u->src); push(u->src, b * a); break;

+			case 0x1a: /* MUL */ a = pop(u->src), b = pop(u->src); push(u->src, (Uint32)b * a); break;

 			case 0x1b: /* DIV */ a = pop(u->src), b = pop(u->src); if(a == 0) { u->src->error = 3; a = 1; } push(u->src, b / a); break;

 			case 0x1c: /* AND */ a = pop(u->src), b = pop(u->src); push(u->src, b & a); break;

 			case 0x1d: /* ORA */ a = pop(u->src), b = pop(u->src); push(u->src, b | a); break;

@@ -138,7 +138,7 @@ uxn_eval(Uxn *u, Uint16 vec)

 int

 uxn_boot(Uxn *u)

 {

-	unsigned int i;

+	Uint32 i;

 	char *cptr = (char *)u;

 	for(i = 0; i < sizeof(*u); ++i)

 		cptr[i] = 0x00;

@@ -13,6 +13,7 @@ typedef unsigned char Uint8;

 typedef signed char Sint8;

 typedef unsigned short Uint16;

 typedef signed short Sint16;

+typedef unsigned int Uint32;

 #define PAGE_PROGRAM 0x0100