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Merged
merged 1 commit into from
Apr 29, 2025
Merged

add preliminary driver for Casio FZ series samplers #13623

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14 changes: 13 additions & 1 deletion src/devices/cpu/nec/v5x.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -320,7 +320,7 @@ void v50_base_device::OPCN_w(u8 data)
m_OPCN = data & 0x0f;

m_tout1_callback((data & 0x03) == 0x03 ? m_tout1 : 1);
m_icu->ir1_w(BIT(data, 2) ? 0 : m_intp1);
m_icu->ir1_w(BIT(data, 2) ? m_sint : m_intp1);
m_icu->ir2_w(BIT(data, 3) ? m_tout1 : m_intp2);
}

Expand All @@ -333,6 +333,13 @@ void v50_base_device::tout1_w(int state)
m_icu->ir2_w(state);
}

void v50_base_device::sint_w(int state)
{
m_sint = state;
if (BIT(m_OPCN, 2))
m_icu->ir1_w(state);
}

void v50_base_device::device_reset()
{
nec_common_device::device_reset();
Expand All @@ -348,8 +355,11 @@ void v50_base_device::device_start()

set_irq_acknowledge_callback(*m_icu, FUNC(v5x_icu_device::inta_cb));

m_scu->write_cts(0);

save_item(NAME(m_OPCN));
save_item(NAME(m_tout1));
save_item(NAME(m_sint));
save_item(NAME(m_intp1));
save_item(NAME(m_intp2));
}
Expand Down Expand Up @@ -502,6 +512,8 @@ void v50_base_device::device_add_mconfig(machine_config &config)
m_tcu->out_handler<1>().set(m_scu, FUNC(v5x_scu_device::write_rxc));
m_tcu->out_handler<1>().append(m_scu, FUNC(v5x_scu_device::write_txc));
m_tcu->out_handler<1>().append(FUNC(v50_base_device::tout1_w));

m_scu->sint_handler().set(FUNC(v50_base_device::sint_w));
}

device_memory_interface::space_config_vector v50_base_device::memory_space_config() const
Expand Down
23 changes: 14 additions & 9 deletions src/devices/cpu/nec/v5x.h
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Original file line number Diff line number Diff line change
Expand Up @@ -36,12 +36,7 @@ class device_v5x_interface : public device_interface

// SCU
auto txd_handler_cb() { return m_scu.lookup()->txd_handler(); }
auto dtr_handler_cb() { return m_scu.lookup()->dtr_handler(); }
auto rts_handler_cb() { return m_scu.lookup()->rts_handler(); }
auto rxrdy_handler_cb() { return m_scu.lookup()->rxrdy_handler(); }
auto txrdy_handler_cb() { return m_scu.lookup()->txrdy_handler(); }
auto txempty_handler_cb() { return m_scu.lookup()->txempty_handler(); }
auto syndet_handler_cb() { return m_scu.lookup()->syndet_handler(); }
void rxd_w(int state) { m_scu->write_rxd(state); }

protected:
device_v5x_interface(const machine_config &mconfig, nec_common_device &device, bool is_16bit);
Expand Down Expand Up @@ -190,14 +185,16 @@ class v50_base_device : public nec_common_device, public device_v5x_interface

private:
void tout1_w(int state);
void sint_w(int state);

devcb_write_line m_tout1_callback;
devcb_read8 m_icu_slave_ack;

u8 m_OPCN;
bool m_tout1;
bool m_intp1;
bool m_intp2;
u8 m_tout1;
u8 m_sint;
u8 m_intp1;
u8 m_intp2;
};

class v40_device : public v50_base_device
Expand Down Expand Up @@ -239,6 +236,14 @@ class v53_device : public v33_base_device, public device_v5x_interface

template <unsigned Timer> auto tout_handler() { return m_tcu.lookup()->out_handler<Timer>(); }

// SCU
auto dtr_handler_cb() { return m_scu.lookup()->dtr_handler(); }
auto rts_handler_cb() { return m_scu.lookup()->rts_handler(); }
auto rxrdy_handler_cb() { return m_scu.lookup()->rxrdy_handler(); }
auto txrdy_handler_cb() { return m_scu.lookup()->txrdy_handler(); }
auto txempty_handler_cb() { return m_scu.lookup()->txempty_handler(); }
auto syndet_handler_cb() { return m_scu.lookup()->syndet_handler(); }

protected:
v53_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock);

Expand Down
44 changes: 30 additions & 14 deletions src/devices/machine/i8251.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -80,6 +80,7 @@ i8251_device::i8251_device(const machine_config &mconfig, const char *tag, devic

v5x_scu_device::v5x_scu_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: i8251_device(mconfig, V5X_SCU, tag, owner, clock)
, m_sint_handler(*this)
{
}

Expand Down Expand Up @@ -126,15 +127,14 @@ void i8251_device::device_start()

void i8251_device::update_rx_ready()
{
int state = m_status & I8251_STATUS_RX_READY;

// masked?
if (!BIT(m_command, 2))
state = 0;

m_rxrdy_handler(state != 0);
m_rxrdy_handler(rxrdy_r());
}

void v5x_scu_device::update_rx_ready()
{
i8251_device::update_rx_ready();
sint_bit_w<0>(rxrdy_r());
}


/*-------------------------------------------------
Expand Down Expand Up @@ -376,21 +376,20 @@ void i8251_device::transmit_clock()

void i8251_device::update_tx_ready()
{
/* clear tx ready state */
int tx_ready;

/* tx ready output is set if:
DB Buffer Empty &
CTS is set &
Transmit enable is 1
*/

tx_ready = is_tx_enabled() && (m_status & I8251_STATUS_TX_READY) != 0;

m_txrdy_handler(tx_ready);
m_txrdy_handler(txrdy_r());
}


void v5x_scu_device::update_tx_ready()
{
i8251_device::update_tx_ready();
sint_bit_w<1>(txrdy_r());
}

/*-------------------------------------------------
update_tx_empty
Expand Down Expand Up @@ -875,10 +874,22 @@ int i8251_device::txrdy_r()
return is_tx_enabled() && (m_status & I8251_STATUS_TX_READY) != 0;
}

int i8251_device::rxrdy_r()
{
// masked?
if (!BIT(m_command, 2))
return 0;

return (m_status & I8251_STATUS_RX_READY) != 0;
}

void v5x_scu_device::device_start()
{
i8251_device::device_start();

m_sint = 0;

save_item(NAME(m_sint));
save_item(NAME(m_simk));
}

Expand All @@ -890,6 +901,11 @@ void v5x_scu_device::device_reset()
i8251_device::device_reset();
}

void v5x_scu_device::update_sint()
{
m_sint_handler((m_sint & ~m_simk) != 0);
}

u8 v5x_scu_device::read(offs_t offset)
{
u8 data = 0;
Expand Down
29 changes: 25 additions & 4 deletions src/devices/machine/i8251.h
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,7 @@ class i8251_device : public device_t, public device_serial_interface
void write_syn(int state);

int txrdy_r();
int rxrdy_r();

protected:
enum
Expand Down Expand Up @@ -74,8 +75,8 @@ class i8251_device : public device_t, public device_serial_interface

void receive_character(uint8_t ch);

void update_rx_ready();
void update_tx_ready();
virtual void update_rx_ready();
virtual void update_tx_ready();
void update_tx_empty();
void transmit_clock();
void receive_clock();
Expand Down Expand Up @@ -153,6 +154,8 @@ class v5x_scu_device : public i8251_device
// construction/destruction
v5x_scu_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

auto sint_handler() { return m_sint_handler.bind(); }

virtual uint8_t read(offs_t offset) override;
virtual void write(offs_t offset, uint8_t data) override;

Expand All @@ -161,11 +164,29 @@ class v5x_scu_device : public i8251_device
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;

// TODO: currently unimplemented interrupt masking
virtual void update_rx_ready() override;
virtual void update_tx_ready() override;

template<int Bit>
void sint_bit_w(int state)
{
if (state)
m_sint |= (1 << Bit);
else
m_sint &= ~(1 << Bit);

update_sint();
}

u8 simk_r() { return m_simk; }
void simk_w(u8 data) { m_simk = data; }
void simk_w(u8 data) { m_simk = data; update_sint(); }

private:
void update_sint();

devcb_write_line m_sint_handler;

u8 m_sint;
u8 m_simk;
};

Expand Down
12 changes: 10 additions & 2 deletions src/devices/video/hd44352.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,8 @@
#include "emu.h"
#include "hd44352.h"

#include "screen.h"

#define LCD_BYTE_INPUT 0x01
#define LCD_BYTE_OUTPUT 0x02
#define LCD_CHAR_OUTPUT 0x03
Expand Down Expand Up @@ -132,6 +134,11 @@ uint32_t hd44352_device::screen_update(screen_device &screen, bitmap_ind16 &bitm
if (m_control_lines&0x80 && m_lcd_on)
{
for (int a=0; a<2; a++)
{
// drivers can be arranged as 96x64 or 192x32 when char width is 6
const unsigned sx = (a * 16 * cw) % screen.width();
const unsigned sy = (a * 32) % screen.height();

for (int py=0; py<4; py++)
for (int px=0; px<16; px++)
if (BIT(m_cursor_status, 4) && px == m_cursor_x && py == m_cursor_y && a == m_cursor_lcd)
Expand All @@ -142,7 +149,7 @@ uint32_t hd44352_device::screen_update(screen_device &screen, bitmap_ind16 &bitm
uint8_t d = compute_newval((m_cursor_status>>5) & 0x07, m_video_ram[a][py*16*cw + px*cw + c + m_scroll * 48], m_cursor[c]);
for (int b=0; b<8; b++)
{
bitmap.pix(py*8 + b, a*cw*16 + px*cw + c) = BIT(d, 7-b);
bitmap.pix(sy + py*8 + b, sx + px*cw + c) = BIT(d, 7-b);
}
}
}
Expand All @@ -153,10 +160,11 @@ uint32_t hd44352_device::screen_update(screen_device &screen, bitmap_ind16 &bitm
uint8_t d = m_video_ram[a][py*16*cw + px*cw + c + m_scroll * 48];
for (int b=0; b<8; b++)
{
bitmap.pix(py*8 + b, a*cw*16 + px*cw + c) = BIT(d, 7-b);
bitmap.pix(sy + py*8 + b, sx + px*cw + c) = BIT(d, 7-b);
}
}
}
}
}

return 0;
Expand Down
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