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pwm_display: add separate handlers for matrix x/y sides

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This commit is contained in:
hap 2021-05-05 14:02:15 +02:00
parent 926dbbddcb
commit ffb70cfb71
4 changed files with 24 additions and 34 deletions
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3
src/devices/video/pwm.cpp
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@ -84,6 +84,7 @@ void pwm_display_device::device_start()
// initialize
m_rowsel = 0;
m_rowdata_last = 0;
std::fill(std::begin(m_rowdata), std::end(m_rowdata), 0);
for (auto &bri : m_bri)
@ -105,6 +106,7 @@ void pwm_display_device::device_start()
save_item(NAME(m_segmask));
save_item(NAME(m_rowsel));
save_item(NAME(m_rowdata));
save_item(NAME(m_rowdata_last));
save_item(NAME(m_bri));
save_item(NAME(m_sync_time));
@ -161,6 +163,7 @@ void pwm_display_device::matrix_partial(u8 start, u8 height, u64 rowsel, u64 row
// update selected rows
u64 rowmask = (u64(1) << m_width) - 1;
m_rowdata_last = rowdata & rowmask;
for (int y = start; y < (start + height) && y < m_height; y++)
{
m_rowdata[y] = (rowsel & 1) ? (rowdata & rowmask) : 0;

7
src/devices/video/pwm.h
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@ -35,10 +35,16 @@ public:
void set_bri_one(u8 i, double level) { m_levels[i] = level; }
void segmask_one(u8 y, u64 mask) { m_segmask[y] = mask; }
// matrix accessors
void matrix_partial(u8 start, u8 height, u64 rowsel, u64 rowdata);
void matrix(u64 rowsel, u64 rowdata) { matrix_partial(0, m_height, rowsel, rowdata); }
void clear() { matrix(0, 0); }
void write_my(u64 y) { matrix(y, m_rowdata_last); }
void write_mx(u64 x) { matrix(m_rowsel, x); }
u64 read_my() { return m_rowsel; }
u64 read_mx() { return m_rowdata_last; }
// directly handle individual element (does not affect m_rowsel), y = row num, x = row bit
int read_element(u8 y, u8 x) { return BIT(m_rowdata[y], x); }
void write_element(u8 y, u8 x, int state) { sync(); m_rowdata[y] = (m_rowdata[y] & ~(u64(1) << x)) | (u64(state ? 1 : 0) << x); }
@ -81,6 +87,7 @@ private:
u64 m_segmask[0x40];
u64 m_rowsel;
u64 m_rowdata[0x40];
u64 m_rowdata_last;
double m_bri[0x40][0x41];
attotime m_sync_time;

24
src/mame/drivers/lc80.cpp
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@ -120,10 +120,7 @@ private:
void pio1_pb_w(u8 data);
u8 pio2_pb_r();
void update_display();
u8 m_digit = 0;
u8 m_segment = 0;
u8 m_matrix = 0;
};
@ -236,11 +233,6 @@ WRITE_LINE_MEMBER(lc80_state::ctc_z2_w)
// Z80-PIO Interface
void lc80_state::update_display()
{
m_display->matrix(m_digit >> 1, m_segment);
}
void lc80_state::pio1_pa_w(u8 data)
{
/*
@ -258,8 +250,7 @@ void lc80_state::pio1_pa_w(u8 data)
*/
m_segment = bitswap<8>(~data, 4, 3, 1, 6, 7, 5, 0, 2);
update_display();
m_display->write_mx(bitswap<8>(~data, 4, 3, 1, 6, 7, 5, 0, 2));
}
u8 lc80_state::pio1_pb_r()
@ -289,11 +280,11 @@ void lc80_state::pio1_pb_w(u8 data)
m_cassette->output(BIT(data, 1) ? +1.0 : -1.0);
// speaker
m_speaker->level_w(!BIT(data, 1));
m_speaker->level_w(BIT(~data, 1));
// 7segs/led/keyboard
m_digit = ~data;
update_display();
m_display->write_my(~data >> 1);
m_matrix = ~data >> 2 & 0x3f;
}
u8 lc80_state::pio2_pb_r()
@ -316,7 +307,7 @@ u8 lc80_state::pio2_pb_r()
u8 data = 0;
for (int i = 0; i < 6; i++)
if (BIT(m_digit, i+2))
if (BIT(m_matrix, i))
data |= m_inputs[i]->read() << 4;
return data ^ 0xf0;
@ -347,8 +338,7 @@ void lc80_state::machine_start()
program.install_ram(start, start + m_ram->size() - 1, mirror, m_ram->pointer());
// register for state saving
save_item(NAME(m_digit));
save_item(NAME(m_segment));
save_item(NAME(m_matrix));
}

24
src/mame/drivers/poly880.cpp
View File

@ -101,25 +101,17 @@ private:
u8 pio1_pb_r();
void pio1_pb_w(u8 data);
void update_display();
u8 m_digit = 0;
u8 m_segment = 0;
u8 m_matrix = 0;
bool m_nmi = false;
};
// Read/Write Handlers
void poly880_state::update_display()
{
m_display->matrix(m_digit, m_segment);
}
void poly880_state::cldig_w(u8 data)
{
m_digit = data;
update_display();
m_display->write_my(data);
m_matrix = data;
}
@ -229,7 +221,7 @@ void poly880_state::pio1_pa_w(u8 data)
PA0 SD0 segment E
PA1 SD1 segment D
PA2 SD2 segment C
PA3 SD3 segment P
PA3 SD3 segment DP
PA4 SD4 segment G
PA5 SD5 segment A
PA6 SD6 segment F
@ -237,8 +229,7 @@ void poly880_state::pio1_pa_w(u8 data)
*/
m_segment = bitswap<8>(data, 3, 4, 6, 0, 1, 2, 7, 5);
update_display();
m_display->write_mx(bitswap<8>(data, 3, 4, 6, 0, 1, 2, 7, 5));
}
u8 poly880_state::pio1_pb_r()
@ -262,7 +253,7 @@ u8 poly880_state::pio1_pb_r()
for (int i = 0; i < 8; i++)
{
if (BIT(m_digit, i))
if (BIT(m_matrix, i))
{
if (BIT(m_inputs[0]->read(), i)) data |= 0x10;
if (BIT(m_inputs[1]->read(), i)) data |= 0x20;
@ -317,8 +308,7 @@ static const z80_daisy_config poly880_daisy_chain[] =
void poly880_state::machine_start()
{
// register for state saving
save_item(NAME(m_digit));
save_item(NAME(m_segment));
save_item(NAME(m_matrix));
save_item(NAME(m_nmi));
}