trunk/src/mess/drivers/force68k.c
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| 1 | | // license:BSD-3-Clause |
| 1 | // license:BSD-3-Clause |
| 2 | 2 | // copyright-holders:Joakim Larsson Edstr??m |
| 3 | 3 | /*************************************************************************** |
| 4 | 4 | * |
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| 252 | 252 | */ |
| 253 | 253 | WRITE_LINE_MEMBER (force68k_state::centronics_ack_w) |
| 254 | 254 | { |
| 255 | | LOG (logerror ("centronics_ack_w(%d) %lld\n", state, m_maincpu->total_cycles ())); |
| 255 | // LOG (logerror ("centronics_ack_w(%d) %lld\n", state, m_maincpu->total_cycles ())); |
| 256 | 256 | m_centronics_ack = state; |
| 257 | 257 | m_pit->h1_set (state); |
| 258 | 258 | } |
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| 261 | 261 | * The centronics busy signal is not used by the ROM driver afaik |
| 262 | 262 | */ |
| 263 | 263 | WRITE_LINE_MEMBER (force68k_state::centronics_busy_w){ |
| 264 | | LOG (logerror ("centronics_busy_w(%d) %lld\n", state, m_maincpu->total_cycles ())); |
| 264 | // LOG (logerror ("centronics_busy_w(%d) %lld\n", state, m_maincpu->total_cycles ())); |
| 265 | 265 | m_centronics_busy = state; |
| 266 | 266 | } |
| 267 | 267 | |
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| 269 | 269 | * The centronics perror signal is not used by the ROM driver afaik |
| 270 | 270 | */ |
| 271 | 271 | WRITE_LINE_MEMBER (force68k_state::centronics_perror_w){ |
| 272 | | LOG (logerror ("centronics_perror_w(%d) %lld\n", state, m_maincpu->total_cycles ())); |
| 272 | // LOG (logerror ("centronics_perror_w(%d) %lld\n", state, m_maincpu->total_cycles ())); |
| 273 | 273 | m_centronics_perror = state; |
| 274 | 274 | } |
| 275 | 275 | |
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| 277 | 277 | * The centronics select signal is expected by the ROM on Port B bit 0 |
| 278 | 278 | */ |
| 279 | 279 | WRITE_LINE_MEMBER (force68k_state::centronics_select_w){ |
| 280 | | LOG (logerror ("centronics_select_w(%d) %lld\n", state, m_maincpu->total_cycles ())); |
| 280 | // LOG (logerror ("centronics_select_w(%d) %lld\n", state, m_maincpu->total_cycles ())); |
| 281 | 281 | m_centronics_select = state; |
| 282 | 282 | m_pit->portb_setbit (0, state); |
| 283 | 283 | } |