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hitachi/b16.cpp: hookup FDC

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This commit is contained in:
angelosa 2024-09-22 00:06:35 +02:00
parent 7eabbf19fd
commit 56f676591d
1 changed files with 28 additions and 15 deletions
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43
src/mame/hitachi/b16.cpp
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@ -54,6 +54,7 @@ Error codes (TODO: RE them all)
#include "machine/am9517a.h"
#include "machine/pic8259.h"
#include "machine/pit8253.h"
#include "machine/upd765.h"
#include "video/mc6845.h"
#include "emupal.h"
#include "screen.h"
@ -70,9 +71,10 @@ public:
, m_pit(*this, "pit")
, m_intm(*this, "intm")
, m_ints(*this, "ints")
, m_vram(*this, "vram")
, m_dma(*this, "dma")
, m_fdc(*this, "fdc")
, m_crtc(*this, "crtc")
, m_dma(*this, "8237dma")
, m_vram(*this, "vram")
, m_gfxdecode(*this, "gfxdecode")
, m_palette(*this, "palette")
, m_char_rom(*this, "pcg")
@ -94,9 +96,10 @@ private:
required_device<pit8253_device> m_pit;
required_device<pic8259_device> m_intm;
required_device<pic8259_device> m_ints;
required_shared_ptr<uint16_t> m_vram;
required_device<mc6845_device> m_crtc;
required_device<am9517a_device> m_dma;
required_device<upd765a_device> m_fdc;
required_device<mc6845_device> m_crtc;
required_shared_ptr<uint16_t> m_vram;
required_device<gfxdecode_device> m_gfxdecode;
required_device<palette_device> m_palette;
required_region_ptr<uint8_t> m_char_rom;
@ -208,7 +211,9 @@ void b16_state::b16_io(address_map &map)
map(0x22, 0x22).w(FUNC(b16_state::crtc_data_w));
// b16ex2: jumps to $e0000 if bit 7 high
map(0x48, 0x48).lr8(NAME([] () { return 0; }));
//0x79 bit 0 DSW?
map(0x70, 0x73).m(m_fdc, FUNC(upd765a_device::map)).umask16(0x00ff);
// map(0x78, 0x78).rw bit 0 motor on? bit 2 also used
// map(0x79, 0x79) bit 0 DSW? screen mode?
map(0x80, 0x81).portr("SYSTEM");
}
@ -267,11 +272,26 @@ void b16_state::b16(machine_config &config)
m_pit->set_clk<2>(XTAL(14'318'181) / 4);
// m_pit->out_handler<2>()
// TODO: wrong type
// TODO: wrong type
AM9517A(config, m_dma, XTAL(14'318'181)/2);
m_dma->in_memr_callback().set(FUNC(b16_state::memory_read_byte));
m_dma->out_memw_callback().set(FUNC(b16_state::memory_write_byte));
PIC8259(config, m_intm);
m_intm->out_int_callback().set_inputline(m_maincpu, 0);
m_intm->in_sp_callback().set_constant(1);
// m_intm->read_slave_ack_callback()
PIC8259(config, m_ints, 0);
// m_ints->out_int_callback().set(m_intm, FUNC(pic8259_device::ir?_w));
m_ints->in_sp_callback().set_constant(0);
UPD765A(config, m_fdc, 8'000'000, true, true);
// m_fdc->intrq_wr_callback().set(FUNC(b16_state::intrq_w));
// m_fdc->drq_wr_callback().set(FUNC(b16_state::drq_w));
// FLOPPY_CONNECTOR(config, "fdc:0", ?_floppies, "525?", floppy_image_device::default_mfm_floppy_formats).enable_sound(true);
// FLOPPY_CONNECTOR(config, "fdc:1", ?_floppies, "525?", floppy_image_device::default_mfm_floppy_formats).enable_sound(true);
MC6845(config, m_crtc, XTAL(14'318'181)/5); /* unknown variant, unknown clock, hand tuned to get ~60 fps */
m_crtc->set_screen("screen");
m_crtc->set_show_border_area(false);
@ -285,15 +305,6 @@ void b16_state::b16(machine_config &config)
screen.set_visarea_full();
screen.set_palette(m_palette);
PIC8259(config, m_intm);
m_intm->out_int_callback().set_inputline(m_maincpu, 0);
m_intm->in_sp_callback().set_constant(1);
// m_intm->read_slave_ack_callback()
PIC8259(config, m_ints, 0);
// m_ints->out_int_callback().set(m_intm, FUNC(pic8259_device::ir?_w));
m_ints->in_sp_callback().set_constant(0);
GFXDECODE(config, m_gfxdecode, m_palette, gfx_b16);
// TODO: palette format is a guess
PALETTE(config, m_palette, palette_device::BRG_3BIT).set_entries(8);
@ -346,3 +357,5 @@ ROM_END
COMP( 1982?, b16, 0, 0, b16, b16, b16_state, empty_init, "Hitachi", "B16", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
COMP( 1983?, b16ex2, 0, 0, b16ex2, b16, b16_state, empty_init, "Hitachi", "B16 EX-II", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
// B16 EX-III known to exist
// B16LX, LCD variants
// Ricoh Mr. My Tool (Mr.マイツール), sister variants with 3.5 2HD floppies