void sub_22001514(unsigned char *r0) {
	if(r0 == 0) {
		memset(aesAccelKey, 0, 16);
	} else {
		r1 = aesAccelKey;
		r4 = aesAccelIV;
		while(r1 != r4) {
			r3 = *r0;
			r3 <<= 0x18;
			*r1 = r3;
			r3 = r0[1];
			r2 = *r1;
			r3 <<= 0x10;
			r3 |= r2;
			*r1 = r3;
			r3 = r0[2];
			r2 = *r1;
			r3 <<= 0x8;
			r3 |= r2;
			*r1 = r3;
			r3 = r0[3];
			r2 = *r1;
			r0 += 0x4;
			r3 |= r2;
			*r1 = r3;
		}
	}
}