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epl43102: Recognize some specific registers

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This commit is contained in:
AJR 2020-12-18 19:10:58 -05:00
parent caf1e140ba
commit 0267b2dc12
2 changed files with 83 additions and 5 deletions
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77
src/devices/video/sed1520.cpp
View File

@ -166,6 +166,14 @@ void sed1560_device::device_start()
save_item(NAME(m_line_inv_num));
}
void epl43102_device::device_start()
{
sed1560_device::device_start();
// state saving
save_item(NAME(m_last_command));
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
@ -183,6 +191,13 @@ void sed1560_device::device_reset()
m_line_inv = false;
}
void epl43102_device::device_reset()
{
sed1560_device::device_reset();
m_last_command = 0;
}
//**************************************************************************
// device interface
//**************************************************************************
@ -258,7 +273,7 @@ void sed1520_device::control_write(uint8_t data)
m_page = 3;
}
else
logerror("%s: invalid SED1520 command: %x\n", tag(), data);
logerror("%s: invalid SED1520 command: %x\n", machine().describe_context(), data);
}
@ -309,15 +324,67 @@ void sed1560_device::control_write(uint8_t data)
m_column = m_old_column;
}
else if (data == 0xed) // Power-on completion
logerror("%s: Power-on completion\n", tag());
logerror("%s: Power-on completion\n", machine().describe_context());
else if ((data & 0xf0) == 0xc0) // Output status set
logerror("%s: Output status set %x\n", tag(), data & 0x0f);
logerror("%s: Output status set %x\n", machine().describe_context(), data & 0x0f);
else if ((data & 0xfe) == 0x24) // LCD power supply ON/OFF
logerror("%s: LCD power supply %d\n", tag(), data & 0x01);
logerror("%s: LCD power supply %d\n", machine().describe_context(), data & 0x01);
else if ((data & 0xe0) == 0x80) // Software contrast setting
m_contrast = data;
else
logerror("%s: invalid SED1560 command: %x\n", tag(), data);
logerror("%s: invalid SED1560 command: %x\n", machine().describe_context(), data);
}
void epl43102_device::control_write(uint8_t data)
{
switch (m_last_command)
{
case 0x81:
m_contrast = data & 0x3f;
m_last_command = 0;
break;
case 0x82:
logerror("%s: CL frequency = fOSC / %d\n", machine().describe_context(), BIT(data, 4) ? 32 : (data & 0x0f) + 1);
m_last_command = 0;
break;
case 0x84:
logerror("%s: Duty ratio = %d%s\n", machine().describe_context(), ((data & 0x07) + 1) * 8, BIT(data, 3) ? " + ICON" : "");
m_duty = data & 0x07;
m_last_command = 0;
break;
case 0x85:
logerror("%s: LCD bias = %d%s\n", machine().describe_context(), ((data & 0x0e) >> 1) + 3, BIT(data, 0) ? ".5" : "");
m_last_command = 0;
break;
case 0xad:
if ((data & 0x03) == 0)
logerror("%s: Status indicator off\n", machine().describe_context());
else
logerror("%s: Status indicator on (%s)\n", machine().describe_context(), (data & 0x03) == 0x01 ? "4-frame blinking" : (data & 0x03) == 0x02 ? "2-frame blinking" : "continuously");
m_last_command = 0;
break;
default:
if (data == 0x81 || data == 0x82 || data == 0x84 || data == 0x85 || data == 0xad)
{
// 2-byte instructions
m_last_command = data;
}
else if ((data & 0xf0) == 0xc0)
logerror("%s: COM output direction = %s\n", machine().describe_context(), BIT(data, 3) ? "reverse" : "normal");
else if ((data & 0xf8) == 0x28)
logerror("%s: Voltage converter %s, regulator %s, follower %s\n", machine().describe_context(), BIT(data, 2) ? "on" : "off", BIT(data, 1) ? "on" : "off", BIT(data, 0) ? "on" : "off");
else if ((data & 0xf8) == 0x20)
logerror("%s: Regulator resistor select = %d\n", machine().describe_context(), data & 0x07);
else
sed1560_device::control_write(data);
break;
}
}

11
src/devices/video/sed1520.h
View File

@ -129,6 +129,7 @@ private:
bool m_fill;
bool m_line_inv;
uint8_t m_line_inv_num;
protected:
uint8_t m_contrast;
};
@ -140,6 +141,16 @@ class epl43102_device : public sed1560_device
public:
// construction/destruction
epl43102_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
virtual void control_write(uint8_t data) override;
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// internal state
uint8_t m_last_command;
};