summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/smc777.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/drivers/smc777.c')
-rw-r--r--src/mame/drivers/smc777.c1027
1 files changed, 1027 insertions, 0 deletions
diff --git a/src/mame/drivers/smc777.c b/src/mame/drivers/smc777.c
new file mode 100644
index 00000000000..db6e3ec6f14
--- /dev/null
+++ b/src/mame/drivers/smc777.c
@@ -0,0 +1,1027 @@
+// license:LGPL-2.1+
+// copyright-holders:Angelo Salese
+/*************************************************************************************
+
+ SMC-777 (c) 1983 Sony
+
+ driver by Angelo Salese
+
+ TODO:
+ - no real documentation, the entire driver is just a bunch of educated
+ guesses ...
+ - ROM/RAM bankswitch, it apparently happens after one instruction prefetching.
+ We currently use an hackish implementation until the MAME/MESS framework can
+ support that ...
+ - keyboard input is very sluggish;
+ - cursor stuck in Bird Crash;
+ - add mc6845 features;
+ - many other missing features;
+
+**************************************************************************************/
+
+#include "emu.h"
+#include "cpu/z80/z80.h"
+#include "sound/sn76496.h"
+#include "sound/beep.h"
+#include "video/mc6845.h"
+#include "machine/wd_fdc.h"
+#include "imagedev/flopdrv.h"
+
+#define MASTER_CLOCK XTAL_4_028MHz
+
+#define mc6845_h_char_total (m_crtc_vreg[0]+1)
+#define mc6845_h_display (m_crtc_vreg[1])
+#define mc6845_h_sync_pos (m_crtc_vreg[2])
+#define mc6845_sync_width (m_crtc_vreg[3])
+#define mc6845_v_char_total (m_crtc_vreg[4]+1)
+#define mc6845_v_total_adj (m_crtc_vreg[5])
+#define mc6845_v_display (m_crtc_vreg[6])
+#define mc6845_v_sync_pos (m_crtc_vreg[7])
+#define mc6845_mode_ctrl (m_crtc_vreg[8])
+#define mc6845_tile_height (m_crtc_vreg[9]+1)
+#define mc6845_cursor_y_start (m_crtc_vreg[0x0a])
+#define mc6845_cursor_y_end (m_crtc_vreg[0x0b])
+#define mc6845_start_addr (((m_crtc_vreg[0x0c]<<8) & 0x3f00) | (m_crtc_vreg[0x0d] & 0xff))
+#define mc6845_cursor_addr (((m_crtc_vreg[0x0e]<<8) & 0x3f00) | (m_crtc_vreg[0x0f] & 0xff))
+#define mc6845_light_pen_addr (((m_crtc_vreg[0x10]<<8) & 0x3f00) | (m_crtc_vreg[0x11] & 0xff))
+#define mc6845_update_addr (((m_crtc_vreg[0x12]<<8) & 0x3f00) | (m_crtc_vreg[0x13] & 0xff))
+
+class smc777_state : public driver_device
+{
+public:
+ smc777_state(const machine_config &mconfig, device_type type, const char *tag)
+ : driver_device(mconfig, type, tag),
+ m_maincpu(*this, "maincpu"),
+ m_crtc(*this, "crtc"),
+ m_fdc(*this, "fdc"),
+ m_floppy0(*this, "fdc:0"),
+ m_floppy1(*this, "fdc:1"),
+ m_beeper(*this, "beeper"),
+ m_gfxdecode(*this, "gfxdecode"),
+ m_palette(*this, "palette")
+ { }
+
+ DECLARE_WRITE8_MEMBER(mc6845_w);
+ DECLARE_READ8_MEMBER(vram_r);
+ DECLARE_READ8_MEMBER(attr_r);
+ DECLARE_READ8_MEMBER(pcg_r);
+ DECLARE_WRITE8_MEMBER(vram_w);
+ DECLARE_WRITE8_MEMBER(attr_w);
+ DECLARE_WRITE8_MEMBER(pcg_w);
+ DECLARE_READ8_MEMBER(fbuf_r);
+ DECLARE_WRITE8_MEMBER(fbuf_w);
+ DECLARE_READ8_MEMBER(key_r);
+ DECLARE_WRITE8_MEMBER(key_w);
+ DECLARE_WRITE8_MEMBER(border_col_w);
+ DECLARE_READ8_MEMBER(system_input_r);
+ DECLARE_WRITE8_MEMBER(system_output_w);
+ DECLARE_WRITE8_MEMBER(color_mode_w);
+ DECLARE_WRITE8_MEMBER(ramdac_w);
+ DECLARE_READ8_MEMBER(display_reg_r);
+ DECLARE_WRITE8_MEMBER(display_reg_w);
+ DECLARE_READ8_MEMBER(smc777_mem_r);
+ DECLARE_WRITE8_MEMBER(smc777_mem_w);
+ DECLARE_READ8_MEMBER(irq_mask_r);
+ DECLARE_WRITE8_MEMBER(irq_mask_w);
+ DECLARE_PALETTE_INIT(smc777);
+ UINT32 screen_update_smc777(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+ INTERRUPT_GEN_MEMBER(vblank_irq);
+ TIMER_DEVICE_CALLBACK_MEMBER(keyboard_callback);
+
+ DECLARE_READ8_MEMBER(fdc_r);
+ DECLARE_WRITE8_MEMBER(fdc_w);
+ DECLARE_READ8_MEMBER(fdc_request_r);
+ DECLARE_WRITE8_MEMBER(floppy_select_w);
+ DECLARE_WRITE_LINE_MEMBER(fdc_intrq_w);
+ DECLARE_WRITE_LINE_MEMBER(fdc_drq_w);
+
+protected:
+ virtual void machine_start();
+ virtual void machine_reset();
+ virtual void video_start();
+
+private:
+ required_device<cpu_device> m_maincpu;
+ required_device<mc6845_device> m_crtc;
+ required_device<mb8876_t> m_fdc;
+ required_device<floppy_connector> m_floppy0;
+ required_device<floppy_connector> m_floppy1;
+ required_device<beep_device> m_beeper;
+ required_device<gfxdecode_device> m_gfxdecode;
+ required_device<palette_device> m_palette;
+
+ UINT8 *m_ipl_rom;
+ UINT8 *m_work_ram;
+ UINT8 *m_vram;
+ UINT8 *m_attr;
+ UINT8 *m_gvram;
+ UINT8 *m_pcg;
+
+ UINT8 m_keyb_press;
+ UINT8 m_keyb_press_flag;
+ UINT8 m_shift_press_flag;
+ UINT8 m_backdrop_pen;
+ UINT8 m_display_reg;
+ UINT8 m_fdc_irq_flag;
+ UINT8 m_fdc_drq_flag;
+ UINT8 m_system_data;
+ struct { UINT8 r,g,b; } m_pal;
+ UINT8 m_raminh,m_raminh_pending_change; //bankswitch
+ UINT8 m_raminh_prefetch;
+ UINT8 m_irq_mask;
+ UINT8 m_pal_mode;
+ UINT8 m_keyb_cmd;
+ UINT8 m_crtc_vreg[0x20];
+ UINT8 m_crtc_addr;
+};
+
+
+/* TODO: correct calculation thru mc6845 regs */
+#define CRTC_MIN_X 24*8
+#define CRTC_MIN_Y 4*8
+
+void smc777_state::video_start()
+{
+}
+
+UINT32 smc777_state::screen_update_smc777(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
+{
+ int x,y,yi;
+ UINT16 count;
+ int x_width;
+
+// popmessage("%d %d %d %d",mc6845_v_char_total,mc6845_v_total_adj,mc6845_v_display,mc6845_v_sync_pos);
+
+ bitmap.fill(m_palette->pen(m_backdrop_pen), cliprect);
+
+ x_width = ((m_display_reg & 0x80) >> 7);
+
+ count = 0x0000;
+
+ for(yi=0;yi<8;yi++)
+ {
+ for(y=0;y<200;y+=8)
+ {
+ for(x=0;x<160;x++)
+ {
+ UINT16 color;
+
+ color = (m_gvram[count] & 0xf0) >> 4;
+ /* todo: clean this up! */
+ //if(x_width)
+ {
+ bitmap.pix16(y+yi+CRTC_MIN_Y, x*4+0+CRTC_MIN_X) = m_palette->pen(color);
+ bitmap.pix16(y+yi+CRTC_MIN_Y, x*4+1+CRTC_MIN_X) = m_palette->pen(color);
+ }
+ //else
+ //{
+ // bitmap.pix16(y+yi+CRTC_MIN_Y, x*2+0+CRTC_MIN_X) = m_palette->pen(color);
+ //}
+
+ color = (m_gvram[count] & 0x0f) >> 0;
+ //if(x_width)
+ {
+ bitmap.pix16(y+yi+CRTC_MIN_Y, x*4+2+CRTC_MIN_X) = m_palette->pen(color);
+ bitmap.pix16(y+yi+CRTC_MIN_Y, x*4+3+CRTC_MIN_X) = m_palette->pen(color);
+ }
+ //else
+ //{
+ // bitmap.pix16(y+yi+CRTC_MIN_Y, x*2+1+CRTC_MIN_X) = m_palette->pen(color);
+ //}
+
+ count++;
+
+ }
+ }
+ count+= 0x60;
+ }
+
+ count = 0x0000;
+
+ for(y=0;y<25;y++)
+ {
+ for(x=0;x<80/(x_width+1);x++)
+ {
+ /*
+ -x-- ---- blink
+ --xx x--- bg color (00 transparent, 01 white, 10 black, 11 complementary to fg color
+ ---- -xxx fg color
+ */
+ int tile = m_vram[count];
+ int color = m_attr[count] & 7;
+ int bk_color = (m_attr[count] & 0x18) >> 3;
+ int blink = m_attr[count] & 0x40;
+ int xi;
+ int bk_pen;
+ //int bk_struct[4] = { -1, 0x10, 0x11, (color & 7) ^ 8 };
+
+ bk_pen = -1;
+ switch(bk_color & 3)
+ {
+ case 0: bk_pen = -1; break; //transparent
+ case 1: bk_pen = 0x17; break; //white
+ case 2: bk_pen = 0x10; break; //black
+ case 3: bk_pen = (color ^ 0xf); break; //complementary
+ }
+
+ if(blink && machine().first_screen()->frame_number() & 0x10) //blinking, used by Dragon's Alphabet
+ color = bk_pen;
+
+ for(yi=0;yi<8;yi++)
+ {
+ for(xi=0;xi<8;xi++)
+ {
+ int pen;
+
+ pen = ((m_pcg[tile*8+yi]>>(7-xi)) & 1) ? (color+m_pal_mode) : bk_pen;
+
+ if (pen != -1)
+ {
+ if(x_width)
+ {
+ bitmap.pix16(y*8+CRTC_MIN_Y+yi, (x*8+xi)*2+0+CRTC_MIN_X) = m_palette->pen(pen);
+ bitmap.pix16(y*8+CRTC_MIN_Y+yi, (x*8+xi)*2+1+CRTC_MIN_X) = m_palette->pen(pen);
+ }
+ else
+ bitmap.pix16(y*8+CRTC_MIN_Y+yi, x*8+CRTC_MIN_X+xi) = m_palette->pen(pen);
+ }
+ }
+ }
+
+ // draw cursor
+ if(mc6845_cursor_addr == count)
+ {
+ int xc,yc,cursor_on;
+
+ cursor_on = 0;
+ switch(mc6845_cursor_y_start & 0x60)
+ {
+ case 0x00: cursor_on = 1; break; //always on
+ case 0x20: cursor_on = 0; break; //always off
+ case 0x40: if(machine().first_screen()->frame_number() & 0x10) { cursor_on = 1; } break; //fast blink
+ case 0x60: if(machine().first_screen()->frame_number() & 0x20) { cursor_on = 1; } break; //slow blink
+ }
+
+ if(cursor_on)
+ {
+ for(yc=0;yc<(8-(mc6845_cursor_y_start & 7));yc++)
+ {
+ for(xc=0;xc<8;xc++)
+ {
+ if(x_width)
+ {
+ bitmap.pix16(y*8+CRTC_MIN_Y-yc+7, (x*8+xc)*2+0+CRTC_MIN_X) = m_palette->pen(0x7);
+ bitmap.pix16(y*8+CRTC_MIN_Y-yc+7, (x*8+xc)*2+1+CRTC_MIN_X) = m_palette->pen(0x7);
+ }
+ else
+ bitmap.pix16(y*8+CRTC_MIN_Y-yc+7, x*8+CRTC_MIN_X+xc) = m_palette->pen(0x7);
+ }
+ }
+ }
+ }
+
+ (m_display_reg & 0x80) ? count+=2 : count++;
+ }
+ }
+
+ return 0;
+}
+
+WRITE8_MEMBER(smc777_state::mc6845_w)
+{
+ if(offset == 0)
+ {
+ m_crtc_addr = data;
+ m_crtc->address_w(space, 0,data);
+ }
+ else
+ {
+ m_crtc_vreg[m_crtc_addr] = data;
+ m_crtc->register_w(space, 0,data);
+ }
+}
+
+READ8_MEMBER(smc777_state::vram_r)
+{
+ UINT16 vram_index;
+
+ vram_index = ((offset & 0x0007) << 8);
+ vram_index |= ((offset & 0xff00) >> 8);
+
+ return m_vram[vram_index];
+}
+
+READ8_MEMBER(smc777_state::attr_r)
+{
+ UINT16 vram_index;
+
+ vram_index = ((offset & 0x0007) << 8);
+ vram_index |= ((offset & 0xff00) >> 8);
+
+ return m_attr[vram_index];
+}
+
+READ8_MEMBER(smc777_state::pcg_r)
+{
+ UINT16 vram_index;
+
+ vram_index = ((offset & 0x0007) << 8);
+ vram_index |= ((offset & 0xff00) >> 8);
+
+ return m_pcg[vram_index];
+}
+
+WRITE8_MEMBER(smc777_state::vram_w)
+{
+ UINT16 vram_index;
+
+ vram_index = ((offset & 0x0007) << 8);
+ vram_index |= ((offset & 0xff00) >> 8);
+
+ m_vram[vram_index] = data;
+}
+
+WRITE8_MEMBER(smc777_state::attr_w)
+{
+ UINT16 vram_index;
+
+ vram_index = ((offset & 0x0007) << 8);
+ vram_index |= ((offset & 0xff00) >> 8);
+
+ m_attr[vram_index] = data;
+}
+
+WRITE8_MEMBER(smc777_state::pcg_w)
+{
+ UINT16 vram_index;
+
+ vram_index = ((offset & 0x0007) << 8);
+ vram_index |= ((offset & 0xff00) >> 8);
+
+ m_pcg[vram_index] = data;
+
+ m_gfxdecode->gfx(0)->mark_dirty(vram_index >> 3);
+}
+
+READ8_MEMBER(smc777_state::fbuf_r)
+{
+ UINT16 vram_index;
+
+ vram_index = ((offset & 0x007f) << 8);
+ vram_index |= ((offset & 0xff00) >> 8);
+
+ return m_gvram[vram_index];
+}
+
+WRITE8_MEMBER(smc777_state::fbuf_w)
+{
+ UINT16 vram_index;
+
+ vram_index = ((offset & 0x00ff) << 8);
+ vram_index |= ((offset & 0xff00) >> 8);
+
+ m_gvram[vram_index] = data;
+}
+
+READ8_MEMBER( smc777_state::fdc_r )
+{
+ return m_fdc->read(space, offset) ^ 0xff;
+}
+
+WRITE8_MEMBER( smc777_state::fdc_w )
+{
+ m_fdc->write(space, offset, data ^ 0xff);
+}
+
+READ8_MEMBER( smc777_state::fdc_request_r )
+{
+ UINT8 data = 0;
+
+ data |= !m_fdc_drq_flag << 6;
+ data |= m_fdc_irq_flag << 7;
+
+ return data;
+}
+
+WRITE8_MEMBER( smc777_state::floppy_select_w )
+{
+ floppy_image_device *floppy = NULL;
+
+ // ---- xxxx select floppy drive (yes, 15 of them, A to P)
+ switch (data & 0x01)
+ {
+ case 0: floppy = m_floppy0->get_device(); break;
+ case 1: floppy = m_floppy1->get_device(); break;
+ }
+
+ m_fdc->set_floppy(floppy);
+
+ // no idea where the motor on signal is
+ if (floppy)
+ floppy->mon_w(0);
+
+ if(data & 0xf0)
+ printf("floppy access %02x\n", data);
+}
+
+WRITE_LINE_MEMBER( smc777_state::fdc_intrq_w )
+{
+ m_fdc_irq_flag = state;
+}
+
+WRITE_LINE_MEMBER( smc777_state::fdc_drq_w )
+{
+ m_fdc_drq_flag = state;
+}
+
+READ8_MEMBER(smc777_state::key_r)
+{
+ /*
+ -x-- ---- shift key
+ ---- -x-- MCU data ready
+ ---- ---x handshake bit?
+ */
+
+ switch(m_keyb_cmd)
+ {
+ case 0x00: //poll keyboard input
+ {
+ if(offset == 0)
+ m_keyb_press_flag = 0;
+
+ return (offset == 0) ? m_keyb_press : ((m_shift_press_flag << 6) | (m_keyb_press_flag << 2) | (m_keyb_press_flag));
+ }
+ default:
+ {
+ //if(offset == 1)
+ // printf("Unknown keyboard command %02x read-back\n",m_keyb_cmd);
+
+ return (offset == 0) ? 0x00 : (machine().rand() & 0x5);
+ }
+ }
+
+ // never executed
+ //return 0x00;
+}
+
+/* TODO: the packet commands strikes me as something I've already seen before, don't remember where however ... */
+WRITE8_MEMBER(smc777_state::key_w)
+{
+ if(offset == 1) //keyboard command
+ m_keyb_cmd = data;
+ else
+ {
+ // keyboard command param
+ }
+}
+
+WRITE8_MEMBER(smc777_state::border_col_w)
+{
+ if(data & 0xf0)
+ printf("Special border color enabled %02x\n",data);
+
+ m_backdrop_pen = data & 0xf;
+}
+
+
+READ8_MEMBER(smc777_state::system_input_r)
+{
+ printf("System FF R %02x\n",m_system_data & 0x0f);
+
+ switch(m_system_data & 0x0f)
+ {
+ case 0x00:
+ return ((m_raminh & 1) << 4); //unknown bit, Dragon's Alphabet and Bird Crush relies on this for correct colors
+ }
+
+ return m_system_data;
+}
+
+
+
+WRITE8_MEMBER(smc777_state::system_output_w)
+{
+ /*
+ ---x 0000 ram inibit signal
+ ---x 1001 beep
+ all the rest is unknown at current time
+ */
+ m_system_data = data;
+ switch(m_system_data & 0x0f)
+ {
+ case 0x00:
+ m_raminh_pending_change = ((data & 0x10) >> 4) ^ 1;
+ m_raminh_prefetch = (UINT8)(space.device().state().state_int(Z80_R)) & 0x7f;
+ break;
+ case 0x02: printf("Interlace %s\n",data & 0x10 ? "on" : "off"); break;
+ case 0x05: m_beeper->set_state(data & 0x10); break;
+ default: printf("System FF W %02x\n",data); break;
+ }
+}
+
+WRITE8_MEMBER(smc777_state::color_mode_w)
+{
+ switch(data & 0x0f)
+ {
+ case 0x06: m_pal_mode = (data & 0x10) ^ 0x10; break;
+ default: printf("Color FF %02x\n",data); break;
+ }
+}
+
+WRITE8_MEMBER(smc777_state::ramdac_w)
+{
+ UINT8 pal_index;
+ pal_index = (offset & 0xf00) >> 8;
+
+ if(data & 0x0f)
+ printf("RAMdac used with data bits 0-3 set (%02x)\n",data);
+
+ switch((offset & 0x3000) >> 12)
+ {
+ case 0: m_pal.r = (data & 0xf0) >> 4; m_palette->set_pen_color(pal_index, pal4bit(m_pal.r), pal4bit(m_pal.g), pal4bit(m_pal.b)); break;
+ case 1: m_pal.g = (data & 0xf0) >> 4; m_palette->set_pen_color(pal_index, pal4bit(m_pal.r), pal4bit(m_pal.g), pal4bit(m_pal.b)); break;
+ case 2: m_pal.b = (data & 0xf0) >> 4; m_palette->set_pen_color(pal_index, pal4bit(m_pal.r), pal4bit(m_pal.g), pal4bit(m_pal.b)); break;
+ case 3: printf("RAMdac used with gradient index = 3! pal_index = %02x data = %02x\n",pal_index,data); break;
+ }
+}
+
+READ8_MEMBER(smc777_state::display_reg_r)
+{
+ return m_display_reg;
+}
+
+/* x */
+WRITE8_MEMBER(smc777_state::display_reg_w)
+{
+ /*
+ x--- ---- width 80 / 40 switch (0 = 640 x 200 1 = 320 x 200)
+ ---- -x-- mode select?
+ */
+
+ m_display_reg = data;
+}
+
+READ8_MEMBER(smc777_state::smc777_mem_r)
+{
+ UINT8 z80_r;
+
+ if(m_raminh_prefetch != 0xff) //do the bankswitch AFTER that the prefetch instruction is executed (FIXME: this is an hackish implementation)
+ {
+ z80_r = (UINT8)space.device().state().state_int(Z80_R);
+
+ if(z80_r == ((m_raminh_prefetch+2) & 0x7f))
+ {
+ m_raminh = m_raminh_pending_change;
+ m_raminh_prefetch = 0xff;
+ }
+ }
+
+ if(m_raminh == 1 && ((offset & 0xc000) == 0))
+ return m_ipl_rom[offset];
+
+ return m_work_ram[offset];
+}
+
+WRITE8_MEMBER(smc777_state::smc777_mem_w)
+{
+ m_work_ram[offset] = data;
+}
+
+READ8_MEMBER(smc777_state::irq_mask_r)
+{
+ return m_irq_mask;
+}
+
+WRITE8_MEMBER(smc777_state::irq_mask_w)
+{
+ if(data & 0xfe)
+ printf("Irq mask = %02x\n",data & 0xfe);
+
+ m_irq_mask = data & 1;
+}
+
+static ADDRESS_MAP_START( smc777_mem, AS_PROGRAM, 8, smc777_state )
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x0000, 0xffff) AM_READWRITE(smc777_mem_r, smc777_mem_w)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( smc777_io, AS_IO, 8, smc777_state )
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x00, 0x07) AM_MIRROR(0xff00) AM_MASK(0xffff) AM_READWRITE(vram_r, vram_w)
+ AM_RANGE(0x08, 0x0f) AM_MIRROR(0xff00) AM_MASK(0xffff) AM_READWRITE(attr_r, attr_w)
+ AM_RANGE(0x10, 0x17) AM_MIRROR(0xff00) AM_MASK(0xffff) AM_READWRITE(pcg_r, pcg_w)
+ AM_RANGE(0x18, 0x19) AM_MIRROR(0xff00) AM_WRITE(mc6845_w)
+ AM_RANGE(0x1a, 0x1b) AM_MIRROR(0xff00) AM_READWRITE(key_r, key_w)
+ AM_RANGE(0x1c, 0x1c) AM_MIRROR(0xff00) AM_READWRITE(system_input_r, system_output_w)
+// AM_RANGE(0x1d, 0x1d) system and control read, printer strobe write
+// AM_RANGE(0x1e, 0x1f) rs232 irq control
+ AM_RANGE(0x20, 0x20) AM_MIRROR(0xff00) AM_READWRITE(display_reg_r, display_reg_w)
+ AM_RANGE(0x21, 0x21) AM_MIRROR(0xff00) AM_READWRITE(irq_mask_r, irq_mask_w)
+// AM_RANGE(0x22, 0x22) printer output data
+ AM_RANGE(0x23, 0x23) AM_MIRROR(0xff00) AM_WRITE(border_col_w)
+// AM_RANGE(0x24, 0x24) rtc write address
+// AM_RANGE(0x25, 0x25) rtc read
+// AM_RANGE(0x26, 0x26) rs232 #1
+// AM_RANGE(0x28, 0x2c) fdc #2
+// AM_RANGE(0x2d, 0x2f) rs232 #2
+ AM_RANGE(0x30, 0x33) AM_MIRROR(0xff00) AM_READWRITE(fdc_r, fdc_w)
+ AM_RANGE(0x34, 0x34) AM_MIRROR(0xff00) AM_READWRITE(fdc_request_r, floppy_select_w)
+// AM_RANGE(0x35, 0x37) rs232 #3
+// AM_RANGE(0x38, 0x3b) cache disk unit
+// AM_RANGE(0x3c, 0x3d) rgb superimposer
+// AM_RANGE(0x40, 0x47) ieee-488
+// AM_RANGE(0x48, 0x4f) hdd (winchester)
+ AM_RANGE(0x51, 0x51) AM_MIRROR(0xff00) AM_READ_PORT("JOY_1P") AM_WRITE(color_mode_w)
+ AM_RANGE(0x52, 0x52) AM_MIRROR(0xff00) AM_MASK(0xffff) AM_WRITE(ramdac_w)
+ AM_RANGE(0x53, 0x53) AM_MIRROR(0xff00) AM_DEVWRITE("sn1", sn76489a_device, write)
+// AM_RANGE(0x54, 0x59) vrt controller
+// AM_RANGE(0x5a, 0x5b) ram banking
+// AM_RANGE(0x70, 0x70) auto-start rom
+// AM_RANGE(0x74, 0x74) ieee-488 rom
+// AM_RANGE(0x75, 0x75) vrt controller rom
+// AM_RANGE(0x7e, 0x7f) kanji rom
+ AM_RANGE(0x80, 0xff) AM_MIRROR(0xff00) AM_MASK(0xffff) AM_READWRITE(fbuf_r, fbuf_w)
+ADDRESS_MAP_END
+
+/* Input ports */
+static INPUT_PORTS_START( smc777 )
+ PORT_START("key0") //0x00-0x07
+ PORT_BIT (0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0_PAD) PORT_CHAR(UCHAR_MAMEKEY(0_PAD))
+ PORT_BIT (0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD))
+ PORT_BIT (0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2_PAD) PORT_CHAR(UCHAR_MAMEKEY(2_PAD))
+ PORT_BIT (0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3_PAD) PORT_CHAR(UCHAR_MAMEKEY(3_PAD))
+ PORT_BIT (0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4_PAD) PORT_CHAR(UCHAR_MAMEKEY(4_PAD))
+ PORT_BIT (0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5_PAD) PORT_CHAR(UCHAR_MAMEKEY(5_PAD))
+ PORT_BIT (0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6_PAD) PORT_CHAR(UCHAR_MAMEKEY(6_PAD))
+ PORT_BIT (0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7_PAD) PORT_CHAR(UCHAR_MAMEKEY(7_PAD))
+
+ PORT_START("key1") //0x08-0x0f
+ PORT_BIT (0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8_PAD) PORT_CHAR(UCHAR_MAMEKEY(8_PAD))
+ PORT_BIT (0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9_PAD) PORT_CHAR(UCHAR_MAMEKEY(9_PAD))
+ PORT_BIT (0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("/ PAD") PORT_CODE(KEYCODE_SLASH_PAD)
+ PORT_BIT (0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("* PAD") PORT_CODE(KEYCODE_ASTERISK)
+ PORT_BIT (0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("- PAD") PORT_CODE(KEYCODE_MINUS_PAD)
+ PORT_BIT (0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("+ PAD") PORT_CODE(KEYCODE_PLUS_PAD)
+ PORT_BIT (0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("ENTER PAD") PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(13)
+ PORT_BIT (0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(". PAD") PORT_CODE(KEYCODE_DEL_PAD)
+
+ PORT_START("key2") //0x10-0x17
+ PORT_BIT (0x01, IP_ACTIVE_HIGH,IPT_UNUSED) // PORT_NAME("@") PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('@')
+ PORT_BIT (0x02, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("A") PORT_CODE(KEYCODE_A) PORT_CHAR('A')
+ PORT_BIT (0x04, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("B") PORT_CODE(KEYCODE_B) PORT_CHAR('B')
+ PORT_BIT (0x08, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("C") PORT_CODE(KEYCODE_C) PORT_CHAR('C')
+ PORT_BIT (0x10, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("D") PORT_CODE(KEYCODE_D) PORT_CHAR('D')
+ PORT_BIT (0x20, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("E") PORT_CODE(KEYCODE_E) PORT_CHAR('E')
+ PORT_BIT (0x40, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F") PORT_CODE(KEYCODE_F) PORT_CHAR('F')
+ PORT_BIT (0x80, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("G") PORT_CODE(KEYCODE_G) PORT_CHAR('G')
+
+ PORT_START("key3") //0x18-0x1f
+ PORT_BIT (0x01, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("H") PORT_CODE(KEYCODE_H) PORT_CHAR('H')
+ PORT_BIT (0x02, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("I") PORT_CODE(KEYCODE_I) PORT_CHAR('I')
+ PORT_BIT (0x04, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("J") PORT_CODE(KEYCODE_J) PORT_CHAR('J')
+ PORT_BIT (0x08, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("K") PORT_CODE(KEYCODE_K) PORT_CHAR('K')
+ PORT_BIT (0x10, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("L") PORT_CODE(KEYCODE_L) PORT_CHAR('L')
+ PORT_BIT (0x20, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("M") PORT_CODE(KEYCODE_M) PORT_CHAR('M')
+ PORT_BIT (0x40, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("N") PORT_CODE(KEYCODE_N) PORT_CHAR('N')
+ PORT_BIT (0x80, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("O") PORT_CODE(KEYCODE_O) PORT_CHAR('O')
+
+ PORT_START("key4") //0x20-0x27
+ PORT_BIT (0x01, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("P") PORT_CODE(KEYCODE_P) PORT_CHAR('P')
+ PORT_BIT (0x02, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Q") PORT_CODE(KEYCODE_Q) PORT_CHAR('Q')
+ PORT_BIT (0x04, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("R") PORT_CODE(KEYCODE_R) PORT_CHAR('R')
+ PORT_BIT (0x08, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("S") PORT_CODE(KEYCODE_S) PORT_CHAR('S')
+ PORT_BIT (0x10, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("T") PORT_CODE(KEYCODE_T) PORT_CHAR('T')
+ PORT_BIT (0x20, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("U") PORT_CODE(KEYCODE_U) PORT_CHAR('U')
+ PORT_BIT (0x40, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("V") PORT_CODE(KEYCODE_V) PORT_CHAR('V')
+ PORT_BIT (0x80, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("W") PORT_CODE(KEYCODE_W) PORT_CHAR('W')
+
+ PORT_START("key5") //0x28-0x2f
+ PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("X") PORT_CODE(KEYCODE_X) PORT_CHAR('X')
+ PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Y") PORT_CODE(KEYCODE_Y) PORT_CHAR('Y')
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("Z") PORT_CODE(KEYCODE_Z) PORT_CHAR('Z')
+ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0-1") /* TODO: labels */
+ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0-2")
+ PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("1-1")
+ PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("1-2")
+
+ PORT_START("key6") //0x30-0x37
+ PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("0") PORT_CODE(KEYCODE_0) PORT_CHAR('0')
+ PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("1") PORT_CODE(KEYCODE_1) PORT_CHAR('1')
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2") PORT_CODE(KEYCODE_2) PORT_CHAR('2')
+ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3") PORT_CODE(KEYCODE_3) PORT_CHAR('3')
+ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("4") PORT_CODE(KEYCODE_4) PORT_CHAR('4')
+ PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("5") PORT_CODE(KEYCODE_5) PORT_CHAR('5')
+ PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("6") PORT_CODE(KEYCODE_6) PORT_CHAR('6')
+ PORT_BIT(0x80,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("7") PORT_CODE(KEYCODE_7) PORT_CHAR('7')
+
+ PORT_START("key7") //0x38-0x3f
+ PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("8") PORT_CODE(KEYCODE_8) PORT_CHAR('8')
+ PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("9") PORT_CODE(KEYCODE_9) PORT_CHAR('9')
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2-1") /* TODO: labels */
+ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("2-3")
+ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3-1")
+ PORT_BIT(0x20,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3-2")
+ PORT_BIT(0x40,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("3-3")
+
+ PORT_START("key8") //0x40-0x47
+ PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(27)
+ PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("SPACE") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("BACKSPACE") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
+ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_CHAR(9)
+ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("ESC") PORT_CHAR(27)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("INS") PORT_CODE(KEYCODE_INSERT)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("DEL") PORT_CODE(KEYCODE_DEL)
+ /* TODO: control inputs */
+
+ PORT_START("key9") //0x40-0x47
+ /* TODO: cursor inputs */
+ PORT_BIT(0x01, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("CURSOR UP") PORT_CODE(KEYCODE_UP)
+ PORT_BIT(0x02, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("CURSOR DOWN") PORT_CODE(KEYCODE_DOWN)
+ PORT_BIT(0x04, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("CURSOR LEFT") PORT_CODE(KEYCODE_LEFT)
+ PORT_BIT(0x08, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("CURSOR RIGHT") PORT_CODE(KEYCODE_RIGHT)
+ PORT_BIT(0x10, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("HOME") PORT_CODE(KEYCODE_HOME)
+ PORT_BIT(0x20, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("END") PORT_CODE(KEYCODE_END)
+ PORT_BIT(0x40, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("PGUP") PORT_CODE(KEYCODE_PGUP)
+ PORT_BIT(0x80, IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("PGDOWN") PORT_CODE(KEYCODE_PGDN)
+
+ PORT_START("keya") //0x48-0x4f
+ PORT_BIT(0x01,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1)
+ PORT_BIT(0x02,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2)
+ PORT_BIT(0x04,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F3") PORT_CODE(KEYCODE_F3)
+ PORT_BIT(0x08,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F4") PORT_CODE(KEYCODE_F4)
+ PORT_BIT(0x10,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("F5") PORT_CODE(KEYCODE_F5)
+
+ PORT_START("key_mod")
+ PORT_BIT (0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
+ PORT_BIT (0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("KANA SHIFT") PORT_CODE(KEYCODE_LALT)
+
+
+ #if 0
+ PORT_BIT(0x00002000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-')
+
+ PORT_BIT(0x04000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(":") PORT_CODE(KEYCODE_QUOTE) PORT_CHAR(':')
+ PORT_BIT(0x08000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME(";") PORT_CODE(KEYCODE_COLON) PORT_CHAR(';')
+ PORT_BIT(0x08000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("[") PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('[')
+ PORT_BIT(0x20000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("]") PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR(']')
+ PORT_BIT(0x40000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("^") PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('^')
+ PORT_BIT(0x80000000,IP_ACTIVE_HIGH,IPT_KEYBOARD) PORT_NAME("_")
+ #endif
+
+ PORT_START("JOY_1P")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1)
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH,IPT_UNKNOWN ) //status?
+INPUT_PORTS_END
+
+/*
+ Keyboard data:
+ kana lock |= 0x80
+ numpad 0 to 9 = 0x30 - 0x39
+ / pad = 0x2f
+ * pad = 0x2a
+ - pad = 0x2d
+ + pad = 0x2b
+ ENTER pad = 0x0d
+ . pad = 0x2e
+ enter = 0x0d
+ space = 0x20
+ backspace = 0x08
+ CTRL (TAB?) = 0x09
+ cursor up = 0x17
+ cursor down = 0x1c
+ cursor left = 0x16
+ cursor right = 0x19
+ 0 to 9 -> 0x30 to 0x39
+ S + 0 = 0x29
+ S + 1 = 0x21
+ S + 2 = 0x40
+ S + 3 = 0x23
+ S + 4 = 0x24
+ S + 5 = 0x25
+ S + 6 = 0x5e
+ S + 7 = 0x26
+ S + 8 = 0x2a
+ S + 9 = 0x28
+ F1 = 0x01 / 0x15
+ F2 = 0x02 / 0x18
+ F3 = 0x04 / 0x12
+ F4 = 0x06 / 0x05
+ F5 = 0x0b / 0x03
+ ESC = 0x1b
+ INS = 0x0f
+ DEL = 0x11
+ PG UP = 0x12
+ PG DOWN = 0x03
+ HOME = 0x14
+ END = 0x0e
+ ' = 0x2d / 0x5f
+ "P" row 1 ] = 0x5d / 0x7d
+ "P" row 2 ' / ~ = 0x60 / 0x7e
+ "L" row 1 ; / : = 0x3b / 0x3a
+ "L" row 2 = (unused)
+ "L" row 3 Yen / | = 0x5c / 0x7c
+ "M" row 1 , / < = 0x2c / 0x3c
+ "M" row 2 . / > = 0x2e / 0x3e
+ "M" row 3 / / ? = 0x2f / 0x3f
+*/
+
+static const UINT8 smc777_keytable[2][0xa0] =
+{
+ /* normal*/
+ {
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* numpad */
+ 0x38, 0x39, 0x2f, 0x2a, 0x2d, 0x2b, 0x0d, 0x2e,
+ 0xff, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* A - G */
+ 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* H - O */
+ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* P - W */
+ 0x78, 0x79, 0x7a, 0x2d, 0x5d, 0x60, 0xff, 0xff, /* X - Z */
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0 - 7*/
+ 0x38, 0x39, 0x3b, 0x5c, 0x2c, 0x2e, 0x2f, 0xff, /* 8 - 9 */
+ 0x0d, 0x20, 0x08, 0x09, 0x1b, 0x0f, 0x11, 0xff,
+ 0x17, 0x1c, 0x16, 0x19, 0x14, 0x0e, 0x12, 0x03,
+ 0x01, 0x02, 0x04, 0x06, 0x0b, 0xff, 0xff, 0xff,
+
+ },
+ /* shift */
+ {
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* numpad */
+ 0x38, 0x39, 0x2f, 0x2a, 0x2d, 0x2b, 0x0d, 0x2e,
+ 0xff, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
+ 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* H - O */
+ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* P - W */
+ 0x58, 0x59, 0x5a, 0x5f, 0x7d, 0x7e, 0xff, 0xff, /* X - Z */
+ 0x29, 0x21, 0x40, 0x23, 0x24, 0x25, 0x5e, 0x26,
+ 0x2a, 0x28, 0x3a, 0x7c, 0x3c, 0x3e, 0x3f, 0xff,
+ 0x0d, 0x20, 0x08, 0x09, 0x1b, 0x0f, 0x11, 0xff,
+ 0x17, 0x1c, 0x16, 0x19, 0x14, 0x0e, 0x12, 0x03,
+ 0x15, 0x18, 0x12, 0x05, 0x03, 0xff, 0xff, 0xff, /* F1 - F5 */
+ }
+};
+
+TIMER_DEVICE_CALLBACK_MEMBER(smc777_state::keyboard_callback)
+{
+ static const char *const portnames[11] = { "key0","key1","key2","key3","key4","key5","key6","key7", "key8", "key9", "keya" };
+ int i,port_i,scancode;
+ UINT8 shift_mod = ioport("key_mod")->read() & 1;
+ UINT8 kana_mod = ioport("key_mod")->read() & 0x10;
+ scancode = 0;
+
+ for(port_i=0;port_i<11;port_i++)
+ {
+ for(i=0;i<8;i++)
+ {
+ if((ioport(portnames[port_i])->read()>>i) & 1)
+ {
+ m_keyb_press = smc777_keytable[shift_mod & 1][scancode];
+ if(kana_mod) { m_keyb_press|=0x80; }
+ m_keyb_press_flag = 1;
+ m_shift_press_flag = shift_mod & 1;
+ return;
+ }
+ scancode++;
+ }
+ }
+}
+
+static const gfx_layout smc777_charlayout =
+{
+ 8, 8,
+ 0x800 / 8,
+ 1,
+ { 0 },
+ { 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*8
+};
+
+void smc777_state::machine_start()
+{
+ m_ipl_rom = memregion("ipl")->base();
+ m_work_ram = auto_alloc_array_clear(machine(), UINT8, 0x10000);
+ m_vram = auto_alloc_array_clear(machine(), UINT8, 0x800);
+ m_attr = auto_alloc_array_clear(machine(), UINT8, 0x800);
+ m_gvram = auto_alloc_array_clear(machine(), UINT8, 0x8000);
+ m_pcg = auto_alloc_array_clear(machine(), UINT8, 0x800);
+
+ save_pointer(NAME(m_work_ram), 0x10000);
+ save_pointer(NAME(m_vram), 0x800);
+ save_pointer(NAME(m_attr), 0x800);
+ save_pointer(NAME(m_gvram), 0x8000);
+ save_pointer(NAME(m_pcg), 0x800);
+
+ m_gfxdecode->set_gfx(0, global_alloc(gfx_element(m_palette, smc777_charlayout, (UINT8 *)m_pcg, 0, 8, 0)));
+}
+
+void smc777_state::machine_reset()
+{
+ m_raminh = 1;
+ m_raminh_pending_change = 1;
+ m_raminh_prefetch = 0xff;
+ m_pal_mode = 0x10;
+
+ m_beeper->set_frequency(300); //TODO: correct frequency
+ m_beeper->set_state(0);
+}
+
+
+/* set-up SMC-70 mode colors */
+PALETTE_INIT_MEMBER(smc777_state, smc777)
+{
+ int i;
+
+ for(i=0x10;i<0x18;i++)
+ {
+ UINT8 r,g,b;
+
+ r = (i & 4) >> 2;
+ g = (i & 2) >> 1;
+ b = (i & 1) >> 0;
+
+ palette.set_pen_color(i, pal1bit(r),pal1bit(g),pal1bit(b));
+ palette.set_pen_color(i+8, pal1bit(0),pal1bit(0),pal1bit(0));
+ }
+}
+
+
+INTERRUPT_GEN_MEMBER(smc777_state::vblank_irq)
+{
+ if(m_irq_mask)
+ device.execute().set_input_line(0,HOLD_LINE);
+}
+
+
+static SLOT_INTERFACE_START( smc777_floppies )
+ SLOT_INTERFACE("ssdd", FLOPPY_35_SSDD)
+SLOT_INTERFACE_END
+
+
+static MACHINE_CONFIG_START( smc777, smc777_state )
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu",Z80, MASTER_CLOCK)
+ MCFG_CPU_PROGRAM_MAP(smc777_mem)
+ MCFG_CPU_IO_MAP(smc777_io)
+ MCFG_CPU_VBLANK_INT_DRIVER("screen", smc777_state, vblank_irq)
+
+ /* video hardware */
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
+ MCFG_SCREEN_SIZE(0x400, 400)
+ MCFG_SCREEN_VISIBLE_AREA(0, 660-1, 0, 220-1) //normal 640 x 200 + 20 pixels for border color
+ MCFG_SCREEN_UPDATE_DRIVER(smc777_state, screen_update_smc777)
+ MCFG_SCREEN_PALETTE("palette")
+
+ MCFG_PALETTE_ADD("palette", 0x20) // 16 + 8 colors (SMC-777 + SMC-70) + 8 empty entries (SMC-70)
+ MCFG_PALETTE_INIT_OWNER(smc777_state, smc777)
+
+ MCFG_GFXDECODE_ADD("gfxdecode", "palette", empty)
+
+ MCFG_MC6845_ADD("crtc", H46505, "screen", MASTER_CLOCK/2) /* unknown clock, hand tuned to get ~60 fps */
+ MCFG_MC6845_SHOW_BORDER_AREA(true)
+ MCFG_MC6845_CHAR_WIDTH(8)
+
+ // floppy controller
+ MCFG_MB8876_ADD("fdc", XTAL_1MHz)
+ MCFG_WD_FDC_INTRQ_CALLBACK(WRITELINE(smc777_state, fdc_intrq_w))
+ MCFG_WD_FDC_DRQ_CALLBACK(WRITELINE(smc777_state, fdc_drq_w))
+
+ // does it really support 16 of them?
+ MCFG_FLOPPY_DRIVE_ADD("fdc:0", smc777_floppies, "ssdd", floppy_image_device::default_floppy_formats)
+ MCFG_FLOPPY_DRIVE_ADD("fdc:1", smc777_floppies, "ssdd", floppy_image_device::default_floppy_formats)
+
+ MCFG_SOFTWARE_LIST_ADD("flop_list", "smc777")
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_MONO("mono")
+
+ MCFG_SOUND_ADD("sn1", SN76489A, MASTER_CLOCK) // unknown clock / divider
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
+
+ MCFG_SOUND_ADD("beeper", BEEP, 0)
+ MCFG_SOUND_ROUTE(ALL_OUTPUTS,"mono",0.50)
+
+ MCFG_TIMER_DRIVER_ADD_PERIODIC("keyboard_timer", smc777_state, keyboard_callback, attotime::from_hz(240/32))
+MACHINE_CONFIG_END
+
+/* ROM definition */
+ROM_START( smc777 )
+ /* shadow ROM */
+ ROM_REGION( 0x10000, "ipl", ROMREGION_ERASEFF )
+ ROM_SYSTEM_BIOS(0, "1st", "1st rev.")
+ ROMX_LOAD( "smcrom.dat", 0x0000, 0x4000, CRC(b2520d31) SHA1(3c24b742c38bbaac85c0409652ba36e20f4687a1), ROM_BIOS(1))
+ ROM_SYSTEM_BIOS(1, "2nd", "2nd rev.")
+ ROMX_LOAD( "smcrom.v2", 0x0000, 0x4000, CRC(c1494b8f) SHA1(a7396f5c292f11639ffbf0b909e8473c5aa63518), ROM_BIOS(2))
+
+ ROM_REGION( 0x800, "mcu", ROMREGION_ERASEFF )
+ ROM_LOAD( "i80xx", 0x000, 0x800, NO_DUMP ) // keyboard mcu, needs decapping
+ROM_END
+
+/* Driver */
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
+COMP( 1983, smc777, 0, 0, smc777, smc777, driver_device, 0, "Sony", "SMC-777", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_SOUND)