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cd2650: Add output latch (nw)

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This commit is contained in:
AJR 2017-11-04 09:24:05 -04:00
parent f11cbaac4d
commit df46a50eb0
1 changed files with 12 additions and 11 deletions
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23
src/mame/drivers/cd2650.cpp
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@ -51,6 +51,7 @@ TODO
//#include "bus/s100/s100.h"
#include "imagedev/cassette.h"
#include "imagedev/snapquik.h"
#include "machine/74259.h"
#include "machine/keyboard.h"
#include "sound/beep.h"
#include "sound/wave.h"
@ -65,14 +66,13 @@ public:
, m_maincpu(*this, "maincpu")
, m_p_videoram(*this, "videoram")
, m_p_chargen(*this, "chargen")
, m_beep(*this, "beeper")
, m_cass(*this, "cassette")
{
}
DECLARE_READ8_MEMBER(keyin_r);
DECLARE_WRITE8_MEMBER(beep_w);
void kbd_put(u8 data);
DECLARE_WRITE_LINE_MEMBER(tape_deck_on_w);
DECLARE_READ_LINE_MEMBER(cass_r);
DECLARE_WRITE_LINE_MEMBER(cass_w);
DECLARE_QUICKLOAD_LOAD_MEMBER(cd2650);
@ -84,28 +84,25 @@ private:
required_device<cpu_device> m_maincpu;
required_shared_ptr<uint8_t> m_p_videoram;
required_region_ptr<u8> m_p_chargen;
required_device<beep_device> m_beep;
required_device<cassette_image_device> m_cass;
};
WRITE8_MEMBER( cd2650_state::beep_w )
WRITE_LINE_MEMBER(cd2650_state::tape_deck_on_w)
{
if (data & 7)
m_beep->set_state(BIT(data, 3));
}
WRITE_LINE_MEMBER( cd2650_state::cass_w )
WRITE_LINE_MEMBER(cd2650_state::cass_w)
{
m_cass->output(state ? -1.0 : +1.0);
}
READ_LINE_MEMBER( cd2650_state::cass_r )
READ_LINE_MEMBER(cd2650_state::cass_r)
{
return (m_cass->input() > 0.03) ? 1 : 0;
}
READ8_MEMBER( cd2650_state::keyin_r )
READ8_MEMBER(cd2650_state::keyin_r)
{
uint8_t ret = m_term_data;
m_term_data = ret | 0x80;
@ -124,7 +121,7 @@ static ADDRESS_MAP_START( cd2650_io, AS_IO, 8, cd2650_state)
ADDRESS_MAP_END
static ADDRESS_MAP_START( cd2650_data, AS_DATA, 8, cd2650_state)
AM_RANGE(S2650_DATA_PORT,S2650_DATA_PORT) AM_READWRITE(keyin_r, beep_w)
AM_RANGE(S2650_DATA_PORT,S2650_DATA_PORT) AM_READ(keyin_r) AM_DEVWRITE("outlatch", f9334_device, write_nibble_d3)
ADDRESS_MAP_END
/* Input ports */
@ -135,7 +132,6 @@ INPUT_PORTS_END
void cd2650_state::machine_reset()
{
m_term_data = 0x80;
m_beep->set_state(0);
}
uint32_t cd2650_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
@ -287,6 +283,11 @@ static MACHINE_CONFIG_START( cd2650 )
MCFG_S2650_SENSE_INPUT(READLINE(cd2650_state, cass_r))
MCFG_S2650_FLAG_OUTPUT(WRITELINE(cd2650_state, cass_w))
MCFG_DEVICE_ADD("outlatch", F9334, 0)
MCFG_ADDRESSABLE_LATCH_Q0_OUT_CB(WRITELINE(cd2650_state, tape_deck_on_w)) // TD ON
MCFG_ADDRESSABLE_LATCH_Q1_OUT_CB(DEVWRITELINE("beeper", beep_device, set_state)) // which is this?
// Q1-Q7 = OUT 0-6, not defined in RE
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_RAW_PARAMS(XTAL_14_192640MHz, 112 * CHARACTER_WIDTH, 0, 80 * CHARACTER_WIDTH, 22 * CHARACTER_LINES, 0, 16 * CHARACTER_LINES)