1 // license:BSD-3-Clause 2 // copyright-holders:Martin Buchholz 3 /*************************************************************************** 4 5 Poly-Play 6 (c) 1985 by VEB Polytechnik Karl-Marx-Stadt 7 8 sound hardware 9 10 driver written by Martin Buchholz (buchholz@mail.uni-greifswald.de) 11 12 ***************************************************************************/ 13 14 #include "emu.h" 15 #include "includes/polyplay.h" 16 WRITE_LINE_MEMBER(polyplay_state::ctc_zc0_w)17WRITE_LINE_MEMBER(polyplay_state::ctc_zc0_w) 18 { 19 if (state) 20 { 21 m_flipflop1 = ~m_flipflop1; 22 m_speaker1->level_w(m_flipflop1); 23 } 24 } 25 WRITE_LINE_MEMBER(polyplay_state::ctc_zc1_w)26WRITE_LINE_MEMBER(polyplay_state::ctc_zc1_w) 27 { 28 if (state) 29 { 30 m_flipflop2 = ~m_flipflop2; 31 m_speaker2->level_w(m_flipflop2); 32 } 33 } 34