diff options
Diffstat (limited to 'src/emu/machine/ds75161a.c')
-rw-r--r-- | src/emu/machine/ds75161a.c | 132 |
1 files changed, 55 insertions, 77 deletions
diff --git a/src/emu/machine/ds75161a.c b/src/emu/machine/ds75161a.c index 50fc3321d6c..70d32d9ead6 100644 --- a/src/emu/machine/ds75161a.c +++ b/src/emu/machine/ds75161a.c @@ -31,6 +31,22 @@ const device_type DS75161A = &device_creator<ds75161a_device>; ds75161a_device::ds75161a_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : device_t(mconfig, DS75161A, "DS75161A", tag, owner, clock, "ds75161a", __FILE__), + m_in_ren_cb(*this), + m_in_ifc_cb(*this), + m_in_ndac_cb(*this), + m_in_nrfd_cb(*this), + m_in_dav_cb(*this), + m_in_eoi_cb(*this), + m_in_atn_cb(*this), + m_in_srq_cb(*this), + m_out_ren_cb(*this), + m_out_ifc_cb(*this), + m_out_ndac_cb(*this), + m_out_nrfd_cb(*this), + m_out_dav_cb(*this), + m_out_eoi_cb(*this), + m_out_atn_cb(*this), + m_out_srq_cb(*this), m_ren(1), m_ifc(1), m_ndac(1), @@ -44,44 +60,6 @@ ds75161a_device::ds75161a_device(const machine_config &mconfig, const char *tag, { } - -//------------------------------------------------- -// device_config_complete - perform any -// operations now that the configuration is -// complete -//------------------------------------------------- - -void ds75161a_device::device_config_complete() -{ - // inherit a copy of the static data - const ds75161a_interface *intf = reinterpret_cast<const ds75161a_interface *>(static_config()); - if (intf != NULL) - *static_cast<ds75161a_interface *>(this) = *intf; - - // or initialize to defaults if none provided - else - { - memset(&m_in_ren_cb, 0, sizeof(m_in_ren_cb)); - memset(&m_in_ifc_cb, 0, sizeof(m_in_ifc_cb)); - memset(&m_in_ndac_cb, 0, sizeof(m_in_ndac_cb)); - memset(&m_in_nrfd_cb, 0, sizeof(m_in_nrfd_cb)); - memset(&m_in_dav_cb, 0, sizeof(m_in_dav_cb)); - memset(&m_in_eoi_cb, 0, sizeof(m_in_eoi_cb)); - memset(&m_in_atn_cb, 0, sizeof(m_in_atn_cb)); - memset(&m_in_srq_cb, 0, sizeof(m_in_srq_cb)); - - memset(&m_out_ren_cb, 0, sizeof(m_out_ren_cb)); - memset(&m_out_ifc_cb, 0, sizeof(m_out_ifc_cb)); - memset(&m_out_ndac_cb, 0, sizeof(m_out_ndac_cb)); - memset(&m_out_nrfd_cb, 0, sizeof(m_out_nrfd_cb)); - memset(&m_out_dav_cb, 0, sizeof(m_out_dav_cb)); - memset(&m_out_eoi_cb, 0, sizeof(m_out_eoi_cb)); - memset(&m_out_atn_cb, 0, sizeof(m_out_atn_cb)); - memset(&m_out_srq_cb, 0, sizeof(m_out_srq_cb)); - } -} - - //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- @@ -89,23 +67,23 @@ void ds75161a_device::device_config_complete() void ds75161a_device::device_start() { // resolve callbacks - m_in_ren_func.resolve(m_in_ren_cb, *this); - m_in_ifc_func.resolve(m_in_ifc_cb, *this); - m_in_ndac_func.resolve(m_in_ndac_cb, *this); - m_in_nrfd_func.resolve(m_in_nrfd_cb, *this); - m_in_dav_func.resolve(m_in_dav_cb, *this); - m_in_eoi_func.resolve(m_in_eoi_cb, *this); - m_in_atn_func.resolve(m_in_atn_cb, *this); - m_in_srq_func.resolve(m_in_srq_cb, *this); - - m_out_ren_func.resolve(m_out_ren_cb, *this); - m_out_ifc_func.resolve(m_out_ifc_cb, *this); - m_out_ndac_func.resolve(m_out_ndac_cb, *this); - m_out_nrfd_func.resolve(m_out_nrfd_cb, *this); - m_out_dav_func.resolve(m_out_dav_cb, *this); - m_out_eoi_func.resolve(m_out_eoi_cb, *this); - m_out_atn_func.resolve(m_out_atn_cb, *this); - m_out_srq_func.resolve(m_out_srq_cb, *this); + m_in_ren_cb.resolve_safe(0); + m_in_ifc_cb.resolve_safe(0); + m_in_ndac_cb.resolve_safe(0); + m_in_nrfd_cb.resolve_safe(0); + m_in_dav_cb.resolve_safe(0); + m_in_eoi_cb.resolve_safe(0); + m_in_atn_cb.resolve_safe(0); + m_in_srq_cb.resolve_safe(0); + + m_out_ren_cb.resolve_safe(); + m_out_ifc_cb.resolve_safe(); + m_out_ndac_cb.resolve_safe(); + m_out_nrfd_cb.resolve_safe(); + m_out_dav_cb.resolve_safe(); + m_out_eoi_cb.resolve_safe(); + m_out_atn_cb.resolve_safe(); + m_out_srq_cb.resolve_safe(); // register for state saving save_item(NAME(m_ren)); @@ -127,19 +105,19 @@ void ds75161a_device::device_start() void ds75161a_device::update_signals() { - m_out_ren_func(m_dc ? 1 : m_ren); - m_out_ifc_func(m_dc ? 1 : m_ifc); - m_out_ndac_func(m_te ? 1 : m_ndac); - m_out_nrfd_func(m_te ? 1 : m_nrfd); - m_out_dav_func(m_te ? m_dav : 1); - m_out_atn_func(m_dc ? 1 : m_atn); - m_out_srq_func(m_dc ? m_srq : 1 ); - - int atn = m_in_atn_func(); - - if (m_te && atn) m_out_eoi_func(m_eoi); - else if (!m_dc && !atn) m_out_eoi_func(m_eoi); - else m_out_eoi_func(1); + m_out_ren_cb(m_dc ? 1 : m_ren); + m_out_ifc_cb(m_dc ? 1 : m_ifc); + m_out_ndac_cb(m_te ? 1 : m_ndac); + m_out_nrfd_cb(m_te ? 1 : m_nrfd); + m_out_dav_cb(m_te ? m_dav : 1); + m_out_atn_cb(m_dc ? 1 : m_atn); + m_out_srq_cb(m_dc ? m_srq : 1 ); + + int atn = m_in_atn_cb(); + + if (m_te && atn) m_out_eoi_cb(m_eoi); + else if (!m_dc && !atn) m_out_eoi_cb(m_eoi); + else m_out_eoi_cb(1); } @@ -179,7 +157,7 @@ WRITE_LINE_MEMBER( ds75161a_device::dc_w ) READ_LINE_MEMBER( ds75161a_device::ren_r ) { - return m_dc ? m_in_ren_func() : 0; + return m_dc ? m_in_ren_cb() : 0; } @@ -189,7 +167,7 @@ READ_LINE_MEMBER( ds75161a_device::ren_r ) READ_LINE_MEMBER( ds75161a_device::ifc_r ) { - return m_dc ? m_in_ifc_func() : 0; + return m_dc ? m_in_ifc_cb() : 0; } @@ -199,7 +177,7 @@ READ_LINE_MEMBER( ds75161a_device::ifc_r ) READ_LINE_MEMBER( ds75161a_device::ndac_r ) { - return m_te ? m_in_ndac_func() : 0; + return m_te ? m_in_ndac_cb() : 0; } @@ -209,7 +187,7 @@ READ_LINE_MEMBER( ds75161a_device::ndac_r ) READ_LINE_MEMBER( ds75161a_device::nrfd_r ) { - return m_te ? m_in_nrfd_func() : 0; + return m_te ? m_in_nrfd_cb() : 0; } @@ -219,7 +197,7 @@ READ_LINE_MEMBER( ds75161a_device::nrfd_r ) READ_LINE_MEMBER( ds75161a_device::dav_r ) { - return m_te ? 0 : m_in_dav_func(); + return m_te ? 0 : m_in_dav_cb(); } @@ -229,8 +207,8 @@ READ_LINE_MEMBER( ds75161a_device::dav_r ) READ_LINE_MEMBER( ds75161a_device::eoi_r ) { - int atn = m_in_atn_func(); - int eoi = m_in_eoi_func(); + int atn = m_in_atn_cb(); + int eoi = m_in_eoi_cb(); if (!m_te && atn) return eoi; else if (m_dc && !atn) return eoi; @@ -244,7 +222,7 @@ READ_LINE_MEMBER( ds75161a_device::eoi_r ) READ_LINE_MEMBER( ds75161a_device::atn_r ) { - return m_dc ? m_in_atn_func() : 0; + return m_dc ? m_in_atn_cb() : 0; } @@ -254,7 +232,7 @@ READ_LINE_MEMBER( ds75161a_device::atn_r ) READ_LINE_MEMBER( ds75161a_device::srq_r ) { - return m_dc ? 0 : m_in_srq_func(); + return m_dc ? 0 : m_in_srq_cb(); } |