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Diffstat (limited to 'src/mame/drivers/mz3500.cpp')
-rw-r--r--src/mame/drivers/mz3500.cpp882
1 files changed, 0 insertions, 882 deletions
diff --git a/src/mame/drivers/mz3500.cpp b/src/mame/drivers/mz3500.cpp
deleted file mode 100644
index cbc069208b3..00000000000
--- a/src/mame/drivers/mz3500.cpp
+++ /dev/null
@@ -1,882 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Angelo Salese
-/***************************************************************************
-
- MZ-3500 (c) 198? Sharp
-
- preliminary driver by Angelo Salese
-
- TODO:
- - BUSREQ / BUSACK signals.
- - master/slave comms aren't perfect (especially noticeable if you change the video DIP)
-
- Notes:
- Sub-CPU test meanings:
- * RA (tests RAM, first is work RAM, other two are shared RAM banks)
- * VR (tests VRAM)
- * CRT interface test:
- - 40x20
- - 80x25
- - monochrome attribute test
- - 80x25 color test (text B-R-G-W, border: black, blue, red, green, black)
- - 40x20 color test (text B-R-G-W, border: black, blue, red, green, black)
- * Speaker test
- * PR (Printer interface test)
- * LP (Light pen test)
- * RS (RS-232C interface test)
-
-***************************************************************************/
-
-
-#include "emu.h"
-#include "cpu/z80/z80.h"
-#include "imagedev/floppy.h"
-#include "machine/upd765.h"
-#include "machine/i8255.h"
-#include "machine/pit8253.h"
-#include "sound/beep.h"
-#include "video/upd7220.h"
-#include "emupal.h"
-#include "screen.h"
-#include "speaker.h"
-
-#define MAIN_CLOCK XTAL(8'000'000)
-
-class mz3500_state : public driver_device
-{
-public:
- mz3500_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag)
- , m_master(*this, "master")
- , m_slave(*this, "slave")
- , m_hgdc1(*this, "upd7220_chr")
- , m_hgdc2(*this, "upd7220_gfx")
- , m_fdc(*this, "upd765a")
- , m_video_ram(*this, "video_ram")
- , m_beeper(*this, "beeper")
- , m_palette(*this, "palette")
- , m_system_dsw(*this, "SYSTEM_DSW")
- , m_fd_dsw(*this, "FD_DSW")
- , m_floppy_connector(*this, "upd765a:%u", 0U)
- { }
-
- void mz3500(machine_config &config);
-
-private:
- // devices
- required_device<cpu_device> m_master;
- required_device<cpu_device> m_slave;
- required_device<upd7220_device> m_hgdc1;
- required_device<upd7220_device> m_hgdc2;
- required_device<upd765a_device> m_fdc;
- required_shared_ptr<uint16_t> m_video_ram;
- required_device<beep_device> m_beeper;
- required_device<palette_device> m_palette;
-
- uint8_t *m_ipl_rom;
- uint8_t *m_basic_rom;
- std::unique_ptr<uint8_t[]> m_work_ram;
- std::unique_ptr<uint8_t[]> m_shared_ram;
- uint8_t *m_char_rom;
-
- uint8_t m_ma,m_mo,m_ms,m_me2,m_me1;
- uint8_t m_crtc[0x10];
-
- uint8_t m_srdy;
-
- uint8_t m_fdd_sel;
-
- DECLARE_READ8_MEMBER(mz3500_master_mem_r);
- DECLARE_WRITE8_MEMBER(mz3500_master_mem_w);
- DECLARE_READ8_MEMBER(mz3500_ipl_r);
- DECLARE_READ8_MEMBER(mz3500_basic_r);
- DECLARE_READ8_MEMBER(mz3500_work_ram_r);
- DECLARE_WRITE8_MEMBER(mz3500_work_ram_w);
- DECLARE_READ8_MEMBER(mz3500_shared_ram_r);
- DECLARE_WRITE8_MEMBER(mz3500_shared_ram_w);
- DECLARE_READ8_MEMBER(mz3500_io_r);
- DECLARE_WRITE8_MEMBER(mz3500_io_w);
- DECLARE_WRITE8_MEMBER(mz3500_crtc_w);
- DECLARE_READ8_MEMBER(mz3500_fdc_r);
- DECLARE_WRITE8_MEMBER(mz3500_fdc_w);
- DECLARE_READ8_MEMBER(mz3500_fdc_dma_r);
- DECLARE_WRITE8_MEMBER(mz3500_pa_w);
- DECLARE_WRITE8_MEMBER(mz3500_pb_w);
- DECLARE_WRITE8_MEMBER(mz3500_pc_w);
-
- // screen updates
- uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
- UPD7220_DISPLAY_PIXELS_MEMBER( hgdc_display_pixels );
- UPD7220_DRAW_TEXT_LINE_MEMBER( hgdc_draw_text );
-
- void mz3500_master_io(address_map &map);
- void mz3500_master_map(address_map &map);
- void mz3500_slave_io(address_map &map);
- void mz3500_slave_map(address_map &map);
- void upd7220_1_map(address_map &map);
- void upd7220_2_map(address_map &map);
-
- // driver_device overrides
- virtual void machine_start() override;
- virtual void machine_reset() override;
-
- virtual void video_start() override;
-
-private:
- required_ioport m_system_dsw;
- required_ioport m_fd_dsw;
- required_device_array<floppy_connector, 4> m_floppy_connector;
-};
-
-void mz3500_state::video_start()
-{
-}
-
-/*
-CRTC regs
-[0]
----- -x-- "Choice of whether attribute or cursor be put on the frame that displayed on CRT2" (whatever that means ...)
----- --x- CRT2 output
----- ---x CRT1 output
-[1]
----- -GRB CRT1 color output
-[2]
----- -GRB CRT2 color output
-[3]
----- -GRB background color output
-[4]
----- --x- border color mode in effect
----- ---x color mode
-[5]
----- --x- width setting (0: 40 chars, 1: 80 chars)
----- ---x data size for graphics RAM (0: 8 bits, 1: 16 bits)
-[6]
----- -x-- "Connection of graphic GDC"
----- --x- "Connection of the 96K bytes VRAM"
----- ---x "Connection of a 400 raster CRT"
-[7]
----- ---x 0: 25 lines, 1: 20 lines display
-[d]
-(mirror of [5]?)
-*/
-
-UPD7220_DISPLAY_PIXELS_MEMBER( mz3500_state::hgdc_display_pixels )
-{
- // ...
-}
-
-UPD7220_DRAW_TEXT_LINE_MEMBER( mz3500_state::hgdc_draw_text )
-{
- const rgb_t *palette = m_palette->palette()->entry_list_raw();
- int x;
- int xi,yi;
- int tile;
- int attr;
- uint8_t tile_data;
- uint8_t width80;
- uint8_t char_size;
- uint8_t hires;
- uint8_t color_mode;
-
-// popmessage("%02x",m_crtc[6]);
-
- color_mode = m_crtc[4] & 1;
- width80 = (m_crtc[5] & 2) >> 1;
- hires = (m_crtc[6] & 1);
- char_size = (hires) ? 16 : 8;
-
- for( x = 0; x < pitch; x++ )
- {
- tile = (m_video_ram[(((addr+x)*2) & 0x1fff) >> 1] & 0xff);
- attr = ((m_video_ram[(((addr+x)*2+1) & 0x3ffff) >> 1] >> 8) & 0x0f);
-
- //if(hires)
- // tile <<= 1;
-
- for( yi = 0; yi < lr; yi++)
- {
- tile_data = m_char_rom[((tile*16+yi) & 0xfff) | (hires*0x1000)];
-
- for( xi = 0; xi < 8; xi++)
- {
- int res_x,res_y;
- int pen;
-
- if(yi >= char_size)
- pen = -1;
- else
- {
- if(color_mode)
- pen = (tile_data >> (7-xi)) & 1 ? (attr ^ 7) : -1;
- else
- {
- /* TODO: "highlight" */
- //if(attr & 4)
- // tile_data ^= 0xff;
-
- if(attr & 1) // VL
- tile_data |= 8;
-
- /* TODO: correct position of HL */
- if(attr & 2 && yi == char_size/2) // HL
- tile_data |= 0xff;
-
- /* TODO: blink (bit 3) */
-
- pen = (tile_data >> (7-xi)) & 1 ? 7 : -1;
- }
- }
-
- res_x = x * 8 + xi;
- res_y = y + yi;
-
- if(pen != -1)
- {
- if(!width80)
- {
- bitmap.pix32(res_y, res_x*2+0) = palette[pen];
- bitmap.pix32(res_y, res_x*2+1) = palette[pen];
- }
- else
- bitmap.pix32(res_y, res_x) = palette[pen];
- }
- }
- }
- }
-
-}
-
-uint32_t mz3500_state::screen_update( screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect )
-{
- bitmap.fill(m_palette->pen((m_crtc[4] & 2) ? m_crtc[3] & 7 : 0), cliprect);
-
- /* graphics */
- m_hgdc2->screen_update(screen, bitmap, cliprect);
- m_hgdc1->screen_update(screen, bitmap, cliprect);
- return 0;
-}
-
-READ8_MEMBER(mz3500_state::mz3500_ipl_r)
-{
- return m_ipl_rom[offset];
-}
-
-READ8_MEMBER(mz3500_state::mz3500_basic_r)
-{
- return m_basic_rom[offset];
-}
-
-READ8_MEMBER(mz3500_state::mz3500_work_ram_r)
-{
- return m_work_ram[offset];
-}
-
-WRITE8_MEMBER(mz3500_state::mz3500_work_ram_w)
-{
- m_work_ram[offset] = data;
-}
-
-
-READ8_MEMBER(mz3500_state::mz3500_master_mem_r)
-{
- if(m_ms == 0)
- {
- if((offset & 0xe000) == 0x0000) { return mz3500_ipl_r(space,(offset & 0xfff) | 0x1000); }
- if((offset & 0xe000) == 0x2000) { return mz3500_basic_r(space,(offset & 0x1fff) | 0x2000); }
- if((offset & 0xc000) == 0x4000) { return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x4000); }
- if((offset & 0xc000) == 0x8000) { return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x8000); }
- if((offset & 0xc000) == 0xc000)
- {
- if(m_ma == 0x0) { return mz3500_work_ram_r(space,(offset & 0x3fff) | 0xc000); }
- if(m_ma == 0x1) { return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x0000); }
- if(m_ma == 0xf) { return mz3500_shared_ram_r(space,(offset & 0x7ff)); }
- }
-
- printf("Read with unmapped memory bank offset %04x MS %02x MA %02x\n",offset,m_ms,m_ma);
- }
- else if(m_ms == 1)
- {
- return ((offset & 0xf800) == 0xf800) ? mz3500_shared_ram_r(space,(offset & 0x7ff)) : mz3500_work_ram_r(space,offset);
- }
- else if(m_ms == 2) // ROM based BASIC
- {
- if((offset & 0xe000) == 0x0000) { return mz3500_basic_r(space,offset & 0x1fff); }
- if((offset & 0xe000) == 0x2000)
- {
- switch(m_mo)
- {
- case 0x0: return mz3500_basic_r(space,(offset & 0x1fff) | 0x2000);
- case 0x1: return mz3500_basic_r(space,(offset & 0x1fff) | 0x4000);
- case 0x2: return mz3500_basic_r(space,(offset & 0x1fff) | 0x6000);
- }
- }
- if((offset & 0xc000) == 0x4000) { return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x4000); }
- if((offset & 0xc000) == 0x8000) { return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x8000); }
- if((offset & 0xc000) == 0xc000)
- {
- switch(m_ma)
- {
- case 0x0: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x0c000);
- case 0x1: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x00000);
- case 0x2: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x10000);
- case 0x3: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x14000);
- case 0x4: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x18000);
- case 0x5: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x1c000);
- case 0x6: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x20000);
- case 0x7: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x24000);
- case 0x8: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x28000);
- case 0x9: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x2c000);
- case 0xa: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x30000);
- case 0xb: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x34000);
- case 0xc: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x38000);
- case 0xd: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x3c000);
- case 0xf: return mz3500_shared_ram_r(space,(offset & 0x7ff));
- }
- }
-
- printf("Read with unmapped memory bank offset %04x MS %02x MA %02x MO %02x\n",offset,m_ms,m_ma,m_mo);
- }
- else if (m_ms == 3) // RAM based BASIC
- {
- if((offset & 0xe000) == 0x0000) { return mz3500_work_ram_r(space,offset & 0x1fff); }
- if((offset & 0xe000) == 0x2000)
- {
- switch(m_mo)
- {
- case 0x0: return mz3500_work_ram_r(space,(offset & 0x1fff) | 0x2000);
- case 0x1: return mz3500_work_ram_r(space,(offset & 0x1fff) | 0xc000);
- case 0x2: return mz3500_work_ram_r(space,(offset & 0x1fff) | 0xe000);
- }
-
- printf("Read with unmapped memory bank offset %04x MS %02x MO %02x\n",offset,m_ms,m_mo);
- }
- if((offset & 0xc000) == 0x4000) { return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x4000); }
- if((offset & 0xc000) == 0x8000) { return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x8000); }
- if((offset & 0xc000) == 0xc000)
- {
- switch(m_ma)
- {
- case 0x0: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x10000);
- case 0x1: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x14000);
- case 0x2: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x18000);
- case 0x3: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x1c000);
- case 0x4: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x20000);
- case 0x5: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x24000);
- case 0x6: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x28000);
- case 0x7: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x2c000);
- case 0x8: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x30000);
- case 0x9: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x34000);
- case 0xa: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x38000);
- case 0xb: return mz3500_work_ram_r(space,(offset & 0x3fff) | 0x3c000);
- case 0xf: return mz3500_shared_ram_r(space,(offset & 0x7ff));
- }
- }
- }
-
-
- return 0xff; // shouldn't happen
-}
-
-WRITE8_MEMBER(mz3500_state::mz3500_master_mem_w)
-{
- if(m_ms == 0) // Initialize State
- {
- if((offset & 0xc000) == 0x4000) { mz3500_work_ram_w(space,(offset & 0x3fff) | 0x4000,data); return; }
- if((offset & 0xc000) == 0x8000) { mz3500_work_ram_w(space,(offset & 0x3fff) | 0x8000,data); return; }
- if((offset & 0xc000) == 0xc000)
- {
- if(m_ma == 0x0) { mz3500_work_ram_w(space,(offset & 0x3fff) | 0xc000,data); return; }
- if(m_ma == 0x1) { mz3500_work_ram_w(space,(offset & 0x3fff) | 0x0000,data); return; }
- if(m_ma == 0xf) { mz3500_shared_ram_w(space,(offset & 0x7ff),data); return; }
- }
-
- printf("Write with unmapped memory bank offset %04x data %02x MS %02x MA %02x\n",offset,data,m_ms,m_ma);
- }
- else if(m_ms == 1) // System Loading & CP/M
- {
- if((offset & 0xf800) == 0xf800)
- mz3500_shared_ram_w(space,(offset & 0x7ff),data);
- else
- mz3500_work_ram_w(space,offset,data);
-
- return;
- }
- else if(m_ms == 2) // ROM based BASIC
- {
- if((offset & 0xc000) == 0x4000) { mz3500_work_ram_w(space,(offset & 0x3fff) | 0x4000,data); return; }
- if((offset & 0xc000) == 0x8000) { mz3500_work_ram_w(space,(offset & 0x3fff) | 0x8000,data); return; }
- if((offset & 0xc000) == 0xc000)
- {
- switch(m_ma)
- {
- case 0x0: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x0c000,data); return;
- case 0x1: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x00000,data); return;
- case 0x2: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x10000,data); return;
- case 0x3: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x14000,data); return;
- case 0x4: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x18000,data); return;
- case 0x5: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x1c000,data); return;
- case 0x6: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x20000,data); return;
- case 0x7: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x24000,data); return;
- case 0x8: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x28000,data); return;
- case 0x9: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x2c000,data); return;
- case 0xa: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x30000,data); return;
- case 0xb: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x34000,data); return;
- case 0xc: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x38000,data); return;
- case 0xd: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x3c000,data); return;
- case 0xf: mz3500_shared_ram_w(space,(offset & 0x7ff),data); return;
- }
- }
-
- printf("Write with unmapped memory bank offset %04x data %02x MS %02x MA %02x\n",offset,data,m_ms,m_ma);
- }
- else if (m_ms == 3) // RAM based BASIC
- {
- if((offset & 0xe000) == 0x0000) { mz3500_work_ram_w(space,offset & 0x1fff,data); return; }
- if((offset & 0xe000) == 0x2000)
- {
- switch(m_mo)
- {
- case 0x0: mz3500_work_ram_w(space,(offset & 0x1fff) | 0x2000,data); return;
- case 0x1: mz3500_work_ram_w(space,(offset & 0x1fff) | 0xc000,data); return;
- case 0x2: mz3500_work_ram_w(space,(offset & 0x1fff) | 0xe000,data); return;
- }
-
- printf("Read with unmapped memory bank offset %04x MS %02x MO %02x\n",offset,m_ms,m_mo);
- }
- if((offset & 0xc000) == 0x4000) { mz3500_work_ram_w(space,(offset & 0x3fff) | 0x4000,data); return; }
- if((offset & 0xc000) == 0x8000) { mz3500_work_ram_w(space,(offset & 0x3fff) | 0x8000,data); return; }
- if((offset & 0xc000) == 0xc000)
- {
- switch(m_ma)
- {
- case 0x0: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x10000,data); return;
- case 0x1: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x14000,data); return;
- case 0x2: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x18000,data); return;
- case 0x3: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x1c000,data); return;
- case 0x4: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x20000,data); return;
- case 0x5: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x24000,data); return;
- case 0x6: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x28000,data); return;
- case 0x7: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x2c000,data); return;
- case 0x8: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x30000,data); return;
- case 0x9: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x34000,data); return;
- case 0xa: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x38000,data); return;
- case 0xb: mz3500_work_ram_w(space,(offset & 0x3fff) | 0x3c000,data); return;
- case 0xf: mz3500_shared_ram_w(space,(offset & 0x7ff),data); return;
- }
- }
- }
-}
-
-READ8_MEMBER(mz3500_state::mz3500_shared_ram_r)
-{
- return m_shared_ram[offset];
-}
-
-WRITE8_MEMBER(mz3500_state::mz3500_shared_ram_w)
-{
- m_shared_ram[offset] = data;
-}
-
-READ8_MEMBER(mz3500_state::mz3500_io_r)
-{
- /*
- [2]
- ---x xxx- system assign switch
- ---- ---x "SEC" FD assign
- [3]
- xxx- ---- FD assign
- ---x ---- slave CPU Ready signal
- ---- x--- slave CPU ack signal
- ---- -xxx interrupt status
- */
-
- switch(offset)
- {
- case 2:
- return ((m_system_dsw->read() & 0x0f) << 1) | ((m_fd_dsw->read() & 0x8) >> 3);
- case 3:
- return ((m_fd_dsw->read() & 0x7)<<5) | (m_srdy << 4);
- }
-
- return 0;
-}
-
-WRITE8_MEMBER(mz3500_state::mz3500_io_w)
-{
- /*
- [0]
- ---- --x- SRQ bus request from master to slave
- ---- ---x E1
- [1]
- x--- ---- slave reset signal
- ---- --xx memory system define
- [2]
- xxxx ---- ma bank (memory 0xc000-0xffff)
- ---- -xxx mo bank (memory 0x2000-0x3fff)
- [3]
- x--- ---- me2 bank (memory 0x8000-0xbfff)
- -x-- ---- me1 bank (memory 0x4000-0x7fff)
- */
-
- switch(offset)
- {
- case 0:
- /* HACK: actually busreq */
- m_slave->set_input_line(INPUT_LINE_HALT, data & 2 ? ASSERT_LINE : CLEAR_LINE);
-
- break;
- case 1:
- m_ms = data & 3;
- break;
- case 2:
- m_ma = (data & 0xf0) >> 4;
- m_mo = (data & 0x07);
- break;
- case 3:
- m_me2 = (data & 0x80) >> 7;
- m_me1 = (data & 0x40) >> 6;
- break;
- }
-}
-
-WRITE8_MEMBER(mz3500_state::mz3500_crtc_w)
-{
- if(offset & 8)
- {
- if(offset == 0xd)
- m_crtc[offset & 7] = data;
- else
- printf("CRTC register access %02x\n",offset); // probably just a mirror, but who knows ...
- }
- else
- m_crtc[offset] = data;
-}
-
-READ8_MEMBER(mz3500_state::mz3500_fdc_r)
-{
- /*
- ---- -x-- Motor
- ---- --x- Index
- ---- ---x Drq
- */
-
- floppy_image_device *floppy = m_floppy_connector[m_fdd_sel]->get_device();
-
- return (floppy->mon_r() << 2) | (floppy->idx_r() << 1) | (m_fdc->get_drq() & 1);
-}
-
-WRITE8_MEMBER(mz3500_state::mz3500_fdc_w)
-{
- /*
- x--- ---- FDC int enable
- -x-- ---- FDD select signal
- --x- ---- FDC TC
- ---x ---- motor on signal
- ---- xxxx Select FDD 0-3 (bit-wise)
- */
-
- if(data & 0x40)
- {
- for(int i=0;i<4;i++)
- {
- if(data & 1 << i)
- {
- m_fdd_sel = i;
- break;
- }
- }
- }
-
- m_floppy_connector[m_fdd_sel]->get_device()->mon_w(data & 0x10 ? CLEAR_LINE : ASSERT_LINE);
-
-}
-
-READ8_MEMBER(mz3500_state::mz3500_fdc_dma_r)
-{
- return m_fdc->dma_r();
-}
-
-void mz3500_state::mz3500_master_map(address_map &map)
-{
- map(0x0000, 0xffff).rw(FUNC(mz3500_state::mz3500_master_mem_r), FUNC(mz3500_state::mz3500_master_mem_w));
-}
-
-void mz3500_state::mz3500_master_io(address_map &map)
-{
- map.global_mask(0xff);
-// map.unmap_value_high();
-// map(0xe4, 0xe7) SFD upd765
-// map(0xe8, 0xeb) SFD I/O port and DMAC chip select
-// map(0xec, 0xef) irq signal from slave to master CPU
- map(0xf4, 0xf5).m(m_fdc, FUNC(upd765a_device::map)); // MFD upd765
-// map(0xf8, 0xfb) MFD I/O port
- map(0xf8, 0xf8).rw(FUNC(mz3500_state::mz3500_fdc_r), FUNC(mz3500_state::mz3500_fdc_w));
- map(0xf9, 0xf9).r(FUNC(mz3500_state::mz3500_fdc_dma_r));
- map(0xfc, 0xff).rw(FUNC(mz3500_state::mz3500_io_r), FUNC(mz3500_state::mz3500_io_w)); // memory mapper
-}
-
-void mz3500_state::mz3500_slave_map(address_map &map)
-{
- map(0x0000, 0x1fff).rom().region("ipl", 0);
- map(0x2000, 0x27ff).rw(FUNC(mz3500_state::mz3500_shared_ram_r), FUNC(mz3500_state::mz3500_shared_ram_w));
- map(0x4000, 0x5fff).ram();
-}
-
-void mz3500_state::mz3500_slave_io(address_map &map)
-{
- map.global_mask(0xff);
- map.unmap_value_high();
-// map(0x00, 0x0f) f/f and irq to master CPU
-// map(0x10, 0x1f) i8251
-// map(0x20, 0x2f) pit8253
- map(0x30, 0x33).rw("i8255", FUNC(i8255_device::read), FUNC(i8255_device::write));
- map(0x40, 0x40).portr("DSW");
- map(0x50, 0x5f).ram().w(FUNC(mz3500_state::mz3500_crtc_w));
- map(0x60, 0x61).rw(m_hgdc2, FUNC(upd7220_device::read), FUNC(upd7220_device::write));
- map(0x70, 0x71).rw(m_hgdc1, FUNC(upd7220_device::read), FUNC(upd7220_device::write));
-}
-
-WRITE8_MEMBER(mz3500_state::mz3500_pa_w)
-{
- // printer data
-}
-
-WRITE8_MEMBER(mz3500_state::mz3500_pb_w)
-{
- /*
- x--- ---- CG select (ROM and/or upd7220 clock?)
- -x-- ---- SRDY signal (to master)
- --xx xxxx upd1990 RTC (CLK, Din, C2, C1, C0, STRB)
-
- */
- //printf("%02x PB\n",data);
-
- m_srdy = (data & 0x40) >> 6;
-}
-
-WRITE8_MEMBER(mz3500_state::mz3500_pc_w)
-{
- /*
- x--- ---- printer OBF output
- -x-- ---- printer ACK input
- --x- ---- printer STROBE
- ---x ---- buzzer
- ---- -xxx Keyboard (ACKC, STC, DC)
- */
- //printf("%02x PC\n",data);
-
- m_beeper->set_state(data & 0x10);
-
-}
-
-static INPUT_PORTS_START( mz3500 )
- PORT_START("DSW")
- PORT_DIPNAME( 0x01, 0x00, "SYSA" )
- PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x01, DEF_STR( On ) )
- PORT_DIPNAME( 0x02, 0x00, DEF_STR( Unknown ) )
- PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x02, DEF_STR( On ) )
- PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unknown ) )
- PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x04, DEF_STR( On ) )
- PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) )
- PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x08, DEF_STR( On ) )
- PORT_DIPNAME( 0x10, 0x00, DEF_STR( Unknown ) )
- PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x10, DEF_STR( On ) )
- PORT_DIPNAME( 0x20, 0x00, DEF_STR( Unknown ) )
- PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x20, DEF_STR( On ) )
- PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) )
- PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x40, DEF_STR( On ) )
- PORT_DIPNAME( 0x80, 0x80, "Sub-CPU Test" ) /* hack */
- PORT_DIPSETTING( 0x80, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x00, DEF_STR( On ) )
-
- PORT_START("FD_DSW")
- PORT_DIPNAME( 0x01, 0x01, "DSWA" )
- PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x00, DEF_STR( On ) )
- PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
- PORT_DIPSETTING( 0x02, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x00, DEF_STR( On ) )
- PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) )
- PORT_DIPSETTING( 0x04, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x00, DEF_STR( On ) )
- PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) )
- PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x00, DEF_STR( On ) )
-
- PORT_START("SYSTEM_DSW")
- PORT_DIPNAME( 0x01, 0x01, "DSWA" )
- PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x00, DEF_STR( On ) )
- PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) )
- PORT_DIPSETTING( 0x02, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x00, DEF_STR( On ) )
- PORT_DIPNAME( 0x04, 0x00, "CRT Select" )
- PORT_DIPSETTING( 0x04, "Normal Display (MZ1D01, MZ1D06)" )
- PORT_DIPSETTING( 0x00, "Hi-Res Display (MZ1D02, MZ1D03)" )
- PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) )
- PORT_DIPSETTING( 0x08, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x00, DEF_STR( On ) )
-INPUT_PORTS_END
-
-static const gfx_layout charlayout_8x8 =
-{
- 8,8,
- 0x100,
- 1,
- { RGN_FRAC(0,1) },
- { 0, 1, 2, 3, 4, 5, 6, 7 },
- { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
- 8*16
-};
-
-
-static const gfx_layout charlayout_8x16 =
-{
- 8,16,
- 0x100,
- 1,
- { RGN_FRAC(0,1) },
- { 0, 1, 2, 3, 4, 5, 6, 7 },
- { STEP16(0,8) },
- 8*16
-};
-
-static GFXDECODE_START( gfx_mz3500 )
- GFXDECODE_ENTRY( "gfx1", 0x0000, charlayout_8x8, 0, 1 )
- GFXDECODE_ENTRY( "gfx1", 0x0008, charlayout_8x8, 0, 1 )
- GFXDECODE_ENTRY( "gfx1", 0x1000, charlayout_8x16, 0, 1 )
-GFXDECODE_END
-
-void mz3500_state::machine_start()
-{
- m_ipl_rom = memregion("ipl")->base();
- m_basic_rom = memregion("basic")->base();
- m_char_rom = memregion("gfx1")->base();
- m_work_ram = make_unique_clear<uint8_t[]>(0x40000);
- m_shared_ram = make_unique_clear<uint8_t[]>(0x800);
-}
-
-void mz3500_state::machine_reset()
-{
- /* init memory bank states */
- m_ms = 0;
- m_ma = 0;
- m_mo = 0;
- m_me1 = 0;
- m_me2 = 0;
- //m_slave->set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
- m_srdy = 0;
-
- if (m_fdc.found())
- {
- m_fdd_sel = 0;
- {
- for(auto & elem : m_floppy_connector)
- {
- elem->get_device()->mon_w(ASSERT_LINE);
- elem->get_device()->set_rpm(300);
- }
-
- m_fdc->set_rate(250000);
- }
- }
-
- m_beeper->set_state(0);
-}
-
-
-void mz3500_state::upd7220_1_map(address_map &map)
-{
- map.global_mask(0x1fff);
- map(0x00000, 0x00fff).ram().share("video_ram");
-}
-
-void mz3500_state::upd7220_2_map(address_map &map)
-{
- map(0x00000, 0x3ffff).ram(); // .share("video_ram_2");
-}
-
-static void mz3500_floppies(device_slot_interface &device)
-{
- device.option_add("525ssdd", FLOPPY_525_SSDD);
-}
-
-/* TODO: clocks */
-void mz3500_state::mz3500(machine_config &config)
-{
- /* basic machine hardware */
- Z80(config, m_master, MAIN_CLOCK/2);
- m_master->set_addrmap(AS_PROGRAM, &mz3500_state::mz3500_master_map);
- m_master->set_addrmap(AS_IO, &mz3500_state::mz3500_master_io);
-
- Z80(config, m_slave, MAIN_CLOCK/2);
- m_slave->set_addrmap(AS_PROGRAM, &mz3500_state::mz3500_slave_map);
- m_slave->set_addrmap(AS_IO, &mz3500_state::mz3500_slave_io);
-
- config.set_perfect_quantum(m_master);
-
- i8255_device &ppi(I8255A(config, "i8255"));
- ppi.out_pa_callback().set(FUNC(mz3500_state::mz3500_pa_w));
- ppi.out_pb_callback().set(FUNC(mz3500_state::mz3500_pb_w));
- ppi.out_pc_callback().set(FUNC(mz3500_state::mz3500_pc_w));
-
- UPD765A(config, m_fdc, 8'000'000, true, true);
- m_fdc->intrq_wr_callback().set_inputline(m_master, INPUT_LINE_IRQ0);
- FLOPPY_CONNECTOR(config, "upd765a:0", mz3500_floppies, "525ssdd", floppy_image_device::default_floppy_formats);
- FLOPPY_CONNECTOR(config, "upd765a:1", mz3500_floppies, "525ssdd", floppy_image_device::default_floppy_formats);
- FLOPPY_CONNECTOR(config, "upd765a:2", mz3500_floppies, "525ssdd", floppy_image_device::default_floppy_formats);
- FLOPPY_CONNECTOR(config, "upd765a:3", mz3500_floppies, "525ssdd", floppy_image_device::default_floppy_formats);
-
- UPD7220(config, m_hgdc1, MAIN_CLOCK/5);
- m_hgdc1->set_addrmap(0, &mz3500_state::upd7220_1_map);
- m_hgdc1->set_draw_text(FUNC(mz3500_state::hgdc_draw_text));
- m_hgdc1->vsync_wr_callback().set(m_hgdc2, FUNC(upd7220_device::ext_sync_w));
-
- UPD7220(config, m_hgdc2, MAIN_CLOCK/5);
- m_hgdc2->set_addrmap(0, &mz3500_state::upd7220_2_map);
- m_hgdc2->set_display_pixels(FUNC(mz3500_state::hgdc_display_pixels));
-
- /* video hardware */
- screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
- screen.set_refresh_hz(60);
- screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500));
- screen.set_screen_update(FUNC(mz3500_state::screen_update));
- screen.set_size(32*8, 32*8);
- screen.set_visarea(0*8, 32*8-1, 0*8, 32*8-1);
-
- GFXDECODE(config, "gfxdecode", m_palette, gfx_mz3500);
-
- PALETTE(config, m_palette, palette_device::BRG_3BIT);
-
- /* sound hardware */
- SPEAKER(config, "mono").front_center();
-
- BEEP(config, m_beeper, 2400).add_route(ALL_OUTPUTS, "mono", 0.15);
-}
-
-
-/***************************************************************************
-
- Game driver(s)
-
-***************************************************************************/
-
-ROM_START( mz3500 )
- ROM_REGION( 0x2000, "ipl", ROMREGION_ERASE00 )
- ROM_LOAD( "mz-3500_ipl-rom_2-0a_m5l2764k.bin", 0x000000, 0x002000, CRC(119708b9) SHA1(de81979608ba6ab76f09088a92bfd1a5bc42530e) )
-
- ROM_REGION( 0x8000, "basic", ROMREGION_ERASE00 )
- ROM_LOAD( "basic.rom", 0x00000, 0x8000, NO_DUMP )
-
- ROM_REGION( 0x2000, "gfx1", ROMREGION_ERASE00 )
- ROM_LOAD( "mz-3500_cg-rom_2-b_m5l2764k.bin", 0x000000, 0x002000, CRC(29f2f80a) SHA1(64b307cd9de5a3327e3ec9f3d0d6b3485706f436) )
-ROM_END
-
-COMP( 198?, mz3500, 0, 0, mz3500, mz3500, mz3500_state, empty_init, "Sharp", "MZ-3500", MACHINE_IS_SKELETON )