def ROL(self, a):
r = (a << <NUM_LIT:1>) | self.C<EOL>self.clear_NZVC()<EOL>self.update_NZVC_8(a, a, r)<EOL>return r<EOL>
Rotates all bits of the register one place left through the C (carry)
bit. This is a 9-bit rotation.

source code forms: ROL Q; ROLA; ROLB

CC bits "HNZVC": -aaas