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author AJR <ajrhacker@users.noreply.github.com>2022-09-09 20:39:37 -0400
committer AJR <ajrhacker@users.noreply.github.com>2022-09-09 20:39:37 -0400
commit6ad47786319509598312b74e9c67495cd5750ebb (patch)
treea0f12cf0aee88d061a8c2441ef6149998ea57acb /src/devices/cpu/m6502/m50734.h
parent719c36ef8131656dcc4d692647cb6c903263a2e0 (diff)
m50734: Add A-D converter
Diffstat (limited to 'src/devices/cpu/m6502/m50734.h')
-rw-r--r--src/devices/cpu/m6502/m50734.h17
1 files changed, 16 insertions, 1 deletions
diff --git a/src/devices/cpu/m6502/m50734.h b/src/devices/cpu/m6502/m50734.h
index 4e71585e821..425b6a34e34 100644
--- a/src/devices/cpu/m6502/m50734.h
+++ b/src/devices/cpu/m6502/m50734.h
@@ -66,6 +66,10 @@ public:
auto p3_in_cb() { return m_port_in_cb[3].bind(); }
auto p3_out_cb() { return m_port_out_cb[3].bind(); }
auto p4_in_cb() { return m_port_in_cb[4].bind(); }
+ auto an0_in_cb() { return m_analog_in_cb[0].bind(); }
+ auto an1_in_cb() { return m_analog_in_cb[1].bind(); }
+ auto an2_in_cb() { return m_analog_in_cb[2].bind(); }
+ auto an3_in_cb() { return m_analog_in_cb[3].bind(); }
// port three-state output configuration
void set_p0_3state(u8 value) { assert(!configured()); m_port_3state[0] = value; }
@@ -92,7 +96,6 @@ protected:
virtual void write_data(u16 adr, u8 val) override;
private:
- void internal_map(address_map &map);
template <int N> u8 port_r(offs_t offset);
template <int N> void port_w(offs_t offset, u8 data);
u8 p4_r();
@@ -100,18 +103,30 @@ private:
void p0_function_w(u8 data);
u8 p2_p3_function_r();
void p2_p3_function_w(u8 data);
+ u8 ad_control_r();
+ void ad_control_w(u8 data);
+ u8 ad_r();
+
+ TIMER_CALLBACK_MEMBER(ad_complete);
+
+ void internal_map(address_map &map);
const address_space_config m_data_config;
memory_access<16, 0, 0, ENDIANNESS_LITTLE>::specific m_data;
devcb_read8::array<5> m_port_in_cb;
devcb_write8::array<4> m_port_out_cb;
+ devcb_read8::array<4> m_analog_in_cb;
+
+ emu_timer *m_ad_timer;
u8 m_port_latch[4];
u8 m_port_direction[4];
u8 m_port_3state[4];
u8 m_p0_function;
u8 m_p2_p3_function;
+ u8 m_ad_control;
+ u8 m_ad_register;
};
DECLARE_DEVICE_TYPE(M50734, m50734_device)