diff options
author | 2021-08-09 07:26:46 -0700 | |
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committer | 2021-08-09 10:26:46 -0400 | |
commit | fb0db0413588d159311812c541f9bce50b9b0d29 (patch) | |
tree | fba8ace57a1982cb13c5e5e7bb405ae15ef81e68 /src/devices/machine/e05a30.cpp | |
parent | 6d4dfeff16e24132e8a80ab4d56d26691be49b3a (diff) |
ap2000: hook up reset to Centronics init signal (#8363)
Diffstat (limited to 'src/devices/machine/e05a30.cpp')
-rw-r--r-- | src/devices/machine/e05a30.cpp | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/devices/machine/e05a30.cpp b/src/devices/machine/e05a30.cpp index 378fedc0539..650f6a28c97 100644 --- a/src/devices/machine/e05a30.cpp +++ b/src/devices/machine/e05a30.cpp @@ -29,9 +29,10 @@ e05a30_device::e05a30_device(const machine_config &mconfig, const char *tag, dev m_write_centronics_perror(*this), m_write_centronics_fault(*this), m_write_centronics_select(*this), + m_write_cpu_reset(*this), m_printhead(0), m_pf_stepper(0), - m_cr_stepper(0), m_centronics_data(0), m_centronics_busy(0), m_centronics_nack(0), m_centronics_strobe(0), m_centronics_data_latch(0), m_centronics_data_latched(0) + m_cr_stepper(0), m_centronics_data(0), m_centronics_busy(0), m_centronics_nack(0), m_centronics_init(1), m_centronics_strobe(0), m_centronics_data_latch(0), m_centronics_data_latched(0) { } @@ -51,6 +52,7 @@ void e05a30_device::device_start() m_write_centronics_perror.resolve_safe(); m_write_centronics_fault.resolve_safe(); m_write_centronics_select.resolve_safe(); + m_write_cpu_reset.resolve_safe(); /* register for state saving */ save_item(NAME(m_printhead)); @@ -159,6 +161,18 @@ WRITE_LINE_MEMBER( e05a30_device::centronics_input_strobe ) } +WRITE_LINE_MEMBER( e05a30_device::centronics_input_init ) +{ + if (m_centronics_init == 1 && state == 0) // when init goes low, do a reset cycle + { + m_write_cpu_reset(0); + m_write_cpu_reset(1); + device_reset(); // this will trigger an NMI after 0.9 seconds + } + m_centronics_init = state; +} + + /*************************************************************************** IMPLEMENTATION ***************************************************************************/ |