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(nw) radionic : added 8255

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This commit is contained in:
Robbbert 2018-08-04 23:06:38 +10:00
parent afc360bfaa
commit cf98f490d4
2 changed files with 25 additions and 3 deletions
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24
src/mame/drivers/trs80.cpp
View File

@ -145,8 +145,7 @@ radionic: works
floppy not working (@6C0, DRQ never gets set)
add colour
expansion-box?
uart?
add i8255
uart
lnw80: works
add 1.77 / 4 MHz switch
@ -261,6 +260,17 @@ void trs80_state::lnw80_io(address_map &map)
map(0xfe, 0xfe).rw(FUNC(trs80_state::lnw80_fe_r), FUNC(trs80_state::lnw80_fe_w));
}
void trs80_state::radionic_mem(address_map &map)
{
m1_mem(map);
// Optional external RS232 module with 8251
//map(0x3400, 0x3400).mirror(0xfe).rw("uart2", FUNC(i8251_device::data_r), FUNC(i8251_device::data_w));
//map(0x3401, 0x3401).mirror(0xfe).rw("uart2", FUNC(i8251_device::status_r), FUNC(i8251_device::control_w));
// Internal colour controls (need details)
//map(0x3500, 0x35ff).w(FUNC(trs80_state::colour_w));
// Internal interface to external slots
map(0x3600, 0x3603).mirror(0xfc).rw("ppi", FUNC(i8255_device::read), FUNC(i8255_device::write));
}
/**************************************************************************
w/o SHIFT with SHIFT
@ -618,11 +628,19 @@ MACHINE_CONFIG_START(trs80_state::radionic)
// whose master clock was approximately 11.8005 MHz (6 times ~1.966 MHz and 750 times 15.734 kHz). Though the schematics
// provide the main XTAL frequency as 12 MHz, that they also include a 3.579 MHz XTAL suggests this possibility.
MCFG_DEVICE_PERIODIC_INT_DRIVER(trs80_state, nmi_line_pulse, 12_MHz_XTAL / 12 / 16384)
MCFG_DEVICE_PROGRAM_MAP(radionic_mem)
MCFG_SCREEN_MODIFY("screen")
MCFG_SCREEN_RAW_PARAMS(12_MHz_XTAL, 768, 0, 512, 312, 0, 256)
MCFG_SCREEN_UPDATE_DRIVER(trs80_state, screen_update_radionic)
MCFG_GFXDECODE_MODIFY("gfxdecode", gfx_radionic)
// Interface to external circuits
MCFG_DEVICE_ADD("ppi", I8255, 0)
//MCFG_I8255_OUT_PORTA_CB(WRITE8(*this, pulsar_state, ppi_pa_w)) // Data for external plugin printer module
//MCFG_I8255_OUT_PORTB_CB(WRITE8(*this, pulsar_state, ppi_pb_w)) // Control data to external
//MCFG_I8255_IN_PORTC_CB(READ8(*this, pulsar_state, ppi_pc_r)) // Sensing from external and printer status
//MCFG_I8255_OUT_PORTC_CB(WRITE8(*this, pulsar_state, ppi_pc_w)) // Printer strobe
MACHINE_CONFIG_END
@ -658,7 +676,7 @@ ROM_END
ROM_START(radionic)
ROM_REGION(0x4000, "maincpu",0)
ROM_REGION(0x3800, "maincpu",0)
ROM_LOAD("ep1.bin", 0x0000, 0x1000, CRC(e8908f44) SHA1(7a5a60c3afbeb6b8434737dd302332179a7fca59))
ROM_LOAD("ep2.bin", 0x1000, 0x1000, CRC(46e88fbf) SHA1(a3ca32757f269e09316e1e91ba1502774e2f5155))
ROM_LOAD("ep3.bin", 0x2000, 0x1000, CRC(306e5d66) SHA1(1e1abcfb5b02d4567cf6a81ffc35318723442369))

4
src/mame/includes/trs80.h
View File

@ -15,6 +15,7 @@
#include "imagedev/snapquik.h"
#include "machine/ay31015.h"
#include "machine/com8116.h"
#include "machine/i8255.h"
#include "bus/rs232/rs232.h"
#include "machine/buffer.h"
#include "machine/wd_fdc.h"
@ -40,6 +41,7 @@ public:
, m_cent_data_out(*this, "cent_data_out")
, m_cent_status_in(*this, "cent_status_in")
, m_uart(*this, "uart")
, m_ppi(*this, "ppi") // Radionic only
, m_brg(*this, "brg")
, m_fdc(*this, "fdc")
, m_floppy0(*this, "fdc:0")
@ -105,6 +107,7 @@ private:
void trs80_io(address_map &map);
void trs80_mem(address_map &map);
void ht1080z_io(address_map &map);
void radionic_mem(address_map &map);
uint8_t m_mode;
uint8_t m_irq;
@ -130,6 +133,7 @@ private:
optional_device<output_latch_device> m_cent_data_out;
optional_device<input_buffer_device> m_cent_status_in;
optional_device<ay31015_device> m_uart;
optional_device<i8255_device> m_ppi;
optional_device<com8116_device> m_brg;
optional_device<fd1793_device> m_fdc;
optional_device<floppy_connector> m_floppy0;