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casio/cz230s.cpp: Added Casio CZ-230S and SZ-1. (mamedev#11969)
* cpu/upd7810: Added support for internal RAM. * sound/upd934g.cpp: Corrected channel mapping for play sample command. * video/mn1252.cpp: Added Panasonic MN1252 LCD controller emulation. * casio/ra3.cpp: Added RA-5 8 KiB RAM cartridge. New working systems ---------- Casio CZ-230S [BCM, =CO=Windler, Devin Acker] Casio SZ-1 [BCM, Devin Acker]
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| // license:BSD-3-Clause | ||
| // copyright-holders:Devin Acker | ||
| /*************************************************************************** | ||
| Panasonic MN1252 LCD controller | ||
| ***************************************************************************/ | ||
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| #include "emu.h" | ||
| #include "mn1252.h" | ||
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| #include <cassert> | ||
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| DEFINE_DEVICE_TYPE(MN1252, mn1252_device, "mn1252", "Panasonic MN1252 LCD controller") | ||
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| const u8 mn1252_device::OUTPUT_DIGITS[0x40] = | ||
| { | ||
| // bit 0..7 = segment a..h (from datasheet) | ||
| 0x00, 0x77, 0x7f, 0x39, 0x3f, 0x79, 0x71, 0x3d, | ||
| 0x76, 0x06, 0x1e, 0xf0, 0x38, 0xb7, 0xb6, 0xbf, | ||
| 0x73, 0xbf, 0xf3, 0x6d, 0x07, 0x3e, 0xa6, 0xbe, | ||
| 0xf2, 0x6e, 0x5b, 0x48, 0x0f, 0x46, 0x49, 0x44, | ||
| 0x00, 0x08, 0x10, 0x18, 0x20, 0x28, 0x30, 0x38, | ||
| 0x7c, 0x58, 0x5e, 0x54, 0x5c, 0x40, 0x21, 0x0c, | ||
| 0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, | ||
| 0x7f, 0x6f, 0x01, 0x36, 0x5f, 0x7b, 0x74, 0x62 | ||
| }; | ||
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| mn1252_device::mn1252_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) | ||
| : device_t(mconfig, MN1252, tag, owner, clock) | ||
| { | ||
| } | ||
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| /**************************************************************************/ | ||
| void mn1252_device::device_start() | ||
| { | ||
| save_item(NAME(m_data)); | ||
| save_item(NAME(m_first_nibble)); | ||
| save_item(NAME(m_nibble_count)); | ||
| save_item(NAME(m_ce)); | ||
| save_item(NAME(m_std)); | ||
| save_item(NAME(m_output)); | ||
| } | ||
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| /**************************************************************************/ | ||
| void mn1252_device::device_reset() | ||
| { | ||
| m_data = m_first_nibble = 0; | ||
| m_nibble_count = 0; | ||
| m_ce = m_std = 0; | ||
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| std::fill(std::begin(m_output), std::end(m_output), 0); | ||
| } | ||
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| /**************************************************************************/ | ||
| u16 mn1252_device::output(offs_t digit) const | ||
| { | ||
| assert(digit < 6); | ||
| return m_output[digit]; | ||
| } | ||
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| /**************************************************************************/ | ||
| void mn1252_device::data_w(u8 data) | ||
| { | ||
| m_data = data & 0xf; | ||
| } | ||
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| /**************************************************************************/ | ||
| void mn1252_device::ce_w(int state) | ||
| { | ||
| if (!m_ce && state) | ||
| { | ||
| m_nibble_count = 0; | ||
| } | ||
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| m_ce = state; | ||
| } | ||
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| /**************************************************************************/ | ||
| void mn1252_device::std_w(int state) | ||
| { | ||
| if (m_ce && m_std && !state && m_nibble_count < 12) | ||
| { | ||
| if (!(m_nibble_count % 2)) | ||
| { | ||
| m_first_nibble = m_data; | ||
| } | ||
| else | ||
| { | ||
| const u8 data = (m_first_nibble << 4) | m_data; | ||
| u16 output = OUTPUT_DIGITS[data & 0x3f]; | ||
| if (BIT(data, 6)) output |= 0x80; // segment h | ||
| if (BIT(data, 7)) output |= 0x100; // segment p | ||
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| m_output[m_nibble_count / 2] = output; | ||
| } | ||
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| m_nibble_count++; | ||
| } | ||
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| m_std = state; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| // license:BSD-3-Clause | ||
| // copyright-holders:Devin Acker | ||
| /*************************************************************************** | ||
| Panasonic MN1252 LCD controller | ||
| ***************************************************************************/ | ||
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| #ifndef MAME_VIDEO_MN1252_H | ||
| #define MAME_VIDEO_MN1252_H | ||
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| #pragma once | ||
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| class mn1252_device : public device_t | ||
| { | ||
| public: | ||
| mn1252_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0); | ||
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| u16 output(offs_t digit) const; | ||
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| void data_w(u8 data); | ||
| void ce_w(int state); | ||
| void std_w(int state); | ||
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| protected: | ||
| virtual void device_start() override; | ||
| virtual void device_reset() override; | ||
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| private: | ||
| static const u8 OUTPUT_DIGITS[0x40]; | ||
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| u8 m_data; | ||
| u8 m_first_nibble; | ||
| u8 m_nibble_count; | ||
| u8 m_ce, m_std; | ||
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| u16 m_output[6]; | ||
| }; | ||
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| DECLARE_DEVICE_TYPE(MN1252, mn1252_device) | ||
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| #endif // MAME_VIDEO_MN1252_H |
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