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(nw) multi8 : added devices

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This commit is contained in:
Robbbert 2017-10-12 02:22:38 +11:00
parent 2b01da2494
commit e1d89162e3
1 changed files with 102 additions and 150 deletions
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252
src/mame/drivers/multi8.cpp
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@ -16,8 +16,13 @@
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/clock.h"
#include "machine/i8251.h"
#include "machine/pit8253.h"
#include "machine/i8255.h"
#include "machine/pic8259.h"
#include "machine/timer.h"
#include "machine/upd765.h"
#include "sound/2203intf.h"
#include "sound/beep.h"
#include "video/mc6845.h"
@ -32,20 +37,21 @@ public:
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_p_chargen(*this, "chargen")
, m_ppi(*this, "ppi8255_0")
, m_ppi(*this, "ppi")
, m_crtc(*this, "crtc")
, m_beeper(*this, "beeper")
, m_palette(*this, "palette")
, m_aysnd(*this, "aysnd")
{ }
DECLARE_WRITE8_MEMBER(multi8_6845_w);
DECLARE_READ8_MEMBER(key_input_r);
DECLARE_READ8_MEMBER(key_status_r);
DECLARE_READ8_MEMBER(multi8_vram_r);
DECLARE_WRITE8_MEMBER(multi8_vram_w);
DECLARE_READ8_MEMBER(vram_r);
DECLARE_WRITE8_MEMBER(vram_w);
DECLARE_READ8_MEMBER(pal_r);
DECLARE_WRITE8_MEMBER(pal_w);
DECLARE_READ8_MEMBER(multi8_kanji_r);
DECLARE_WRITE8_MEMBER(multi8_kanji_w);
DECLARE_READ8_MEMBER(kanji_r);
DECLARE_WRITE8_MEMBER(kanji_w);
DECLARE_READ8_MEMBER(porta_r);
DECLARE_WRITE8_MEMBER(portb_w);
DECLARE_WRITE8_MEMBER(portc_w);
@ -53,7 +59,7 @@ public:
DECLARE_READ8_MEMBER(ay8912_0_r);
DECLARE_READ8_MEMBER(ay8912_1_r);
TIMER_DEVICE_CALLBACK_MEMBER(keyboard_callback);
uint32_t screen_update_multi8(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
MC6845_UPDATE_ROW(crtc_update_row);
private:
uint8_t *m_p_vram;
@ -64,7 +70,6 @@ private:
uint8_t m_keyb_press_flag;
uint8_t m_shift_press_flag;
uint8_t m_display_reg;
uint8_t m_crtc_vreg[0x100],m_crtc_index;
uint8_t m_vram_bank;
uint8_t m_pen_clut[8];
uint8_t m_bw_mode;
@ -72,31 +77,15 @@ private:
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
void multi8_draw_pixel(bitmap_ind16 &bitmap,int y,int x,uint8_t pen,uint8_t width);
required_device<cpu_device> m_maincpu;
required_region_ptr<u8> m_p_chargen;
required_device<i8255_device> m_ppi;
required_device<mc6845_device> m_crtc;
required_device<beep_device> m_beeper;
required_device<palette_device> m_palette;
required_device<ay8910_device> m_aysnd;
};
#define mc6845_h_char_total (m_crtc_vreg[0])
#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])
#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))
void multi8_state::video_start()
{
m_keyb_press = m_keyb_press_flag = m_shift_press_flag = m_display_reg = 0;
@ -108,129 +97,79 @@ void multi8_state::video_start()
m_bw_mode = 0;
}
void multi8_state::multi8_draw_pixel(bitmap_ind16 &bitmap,int y,int x,uint8_t pen,uint8_t width)
MC6845_UPDATE_ROW( multi8_state::crtc_update_row )
{
if(!machine().first_screen()->visible_area().contains(x, y))
return;
const rgb_t *palette = m_palette->palette()->entry_list_raw();
uint8_t i,chr,gfx=0,color,pen,attr;
uint16_t mem = y*80,x;
uint32_t *p = &bitmap.pix32(y);
if(width)
for(x = 0; x < x_count; x++)
{
bitmap.pix16(y, x*2+0) = pen;
bitmap.pix16(y, x*2+1) = pen;
}
else
bitmap.pix16(y, x) = pen;
}
uint32_t multi8_state::screen_update_multi8(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
int x,y,count;
uint8_t x_width;
uint8_t xi,yi;
count = 0x0000;
x_width = (m_display_reg & 0x40) ? 80 : 40;
for(y=0; y<200; y++)
{
for(x=0; x<80; x++)
for(i = 0; i < 8; i++)
{
for(xi=0; xi<8; xi++)
u8 pen_b = BIT(m_p_vram[mem | 0x0000], 7-i);
u8 pen_r = BIT(m_p_vram[mem | 0x4000], 7-i);
u8 pen_g = BIT(m_p_vram[mem | 0x8000], 7-i);
u8 color = (pen_b) | (pen_r << 1) | (pen_g << 2);
if (m_bw_mode)
{
int pen_r,pen_g,pen_b,color;
pen_b = BIT(m_display_reg, 0) ? pen_b : 0;
pen_r = BIT(m_display_reg, 1) ? pen_r : 0;
pen_g = BIT(m_display_reg, 2) ? pen_g : 0;
pen_b = (m_p_vram[count | 0x0000] >> (7-xi)) & 1;
pen_r = (m_p_vram[count | 0x4000] >> (7-xi)) & 1;
pen_g = (m_p_vram[count | 0x8000] >> (7-xi)) & 1;
if (m_bw_mode)
{
pen_b = (m_display_reg & 1) ? pen_b : 0;
pen_r = (m_display_reg & 2) ? pen_r : 0;
pen_g = (m_display_reg & 4) ? pen_g : 0;
color = ((pen_b) | (pen_r) | (pen_g)) ? 7 : 0;
}
else
color = (pen_b) | (pen_r << 1) | (pen_g << 2);
multi8_draw_pixel(bitmap, y, x*8+xi,m_pen_clut[color], 0);
color = (pen_b | pen_r | pen_g) ? 7 : 0;
}
count++;
*p++ = palette[color];
}
mem++;
}
count = 0xc000;
u8 x_width = BIT(m_display_reg, 6) ? 80 : 40;
u8 x_step = BIT(m_display_reg, 6) ? 1 : 2;
mem = 0xc000 + ma;
p = &bitmap.pix32(y);
for(y=0;y<25;y++)
for(x = 0; x < x_width; x++)
{
for(x=0; x<x_width; x++)
chr = m_p_vram[mem];
attr = m_p_vram[mem | 0x800];
color = (BIT(m_display_reg, 7)) ? 7 : (attr & 0x07);
gfx = BIT(attr, 5);
if (cursor_x >= 0)
gfx ^= (x == (cursor_x / x_step));
if (gfx)
gfx = 0xff;
if (ra < 8)
gfx ^= m_p_chargen[(chr << 3) | ra];
for(i = 0; i < 8; i++)
{
int tile = m_p_vram[count];
int attr = m_p_vram[count+0x800];
int color = (m_display_reg & 0x80) ? 7 : (attr & 0x07);
pen = BIT(gfx, 7-i) ? color : 0;
for (yi=0; yi<8; yi++)
if (x_step == 1)
{
for(xi=0;xi<8;xi++)
{
int pen;
if(attr & 0x20)
pen = (m_p_chargen[tile*8+yi] >> (7-xi) & 1) ? 0 : color;
else
pen = (m_p_chargen[tile*8+yi] >> (7-xi) & 1) ? color : 0;
if(pen)
multi8_draw_pixel(bitmap, y*mc6845_tile_height+yi, x*8+xi, pen, (m_display_reg & 0x40) == 0x00);
}
if (pen)
*p = palette[color];
p++;
}
// m_gfxdecode->gfx(0)->opaque(bitmap,cliprect, tile,color >> 5, 0, 0, x*8, y*8);
// draw cursor
if(mc6845_cursor_addr+0xc000 == count)
else
{
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<(mc6845_tile_height-(mc6845_cursor_y_start & 7)); yc++)
{
for (xc=0; xc<8; xc++)
multi8_draw_pixel(bitmap, y*mc6845_tile_height+yc, x*8+xc,0x07,(m_display_reg & 0x40) == 0x00);
}
}
if (pen)
*p = palette[color];
p++;
if (pen)
*p = palette[color];
p++;
}
(m_display_reg & 0x40) ? count++ : count+=2;
}
}
return 0;
}
WRITE8_MEMBER( multi8_state::multi8_6845_w )
{
if (!offset)
{
m_crtc_index = data;
m_crtc->address_w(space, offset, data);
}
else
{
m_crtc_vreg[m_crtc_index] = data;
m_crtc->register_w(space, offset, data);
mem += x_step;
}
}
@ -267,7 +206,7 @@ READ8_MEMBER( multi8_state::key_status_r )
return m_keyb_press_flag | (m_shift_press_flag << 7);
}
READ8_MEMBER( multi8_state::multi8_vram_r )
READ8_MEMBER( multi8_state::vram_r )
{
uint8_t res;
@ -291,7 +230,7 @@ READ8_MEMBER( multi8_state::multi8_vram_r )
return res;
}
WRITE8_MEMBER( multi8_state::multi8_vram_w )
WRITE8_MEMBER( multi8_state::vram_w )
{
if (!BIT(m_vram_bank, 4)) //select plain work ram
{
@ -333,15 +272,15 @@ WRITE8_MEMBER( multi8_state::pal_w )
}
}
READ8_MEMBER(multi8_state::ay8912_0_r){ return machine().device<ay8910_device>("aysnd")->data_r(space, 0); }
READ8_MEMBER(multi8_state::ay8912_1_r){ return machine().device<ay8910_device>("aysnd")->data_r(space, 1); }
READ8_MEMBER(multi8_state::ay8912_0_r){ return m_aysnd->data_r(space, 0); }
READ8_MEMBER(multi8_state::ay8912_1_r){ return m_aysnd->data_r(space, 1); }
READ8_MEMBER( multi8_state::multi8_kanji_r )
READ8_MEMBER( multi8_state::kanji_r )
{
return m_p_kanji[(m_knj_addr << 1) | (offset & 1)];
}
WRITE8_MEMBER( multi8_state::multi8_kanji_w )
WRITE8_MEMBER( multi8_state::kanji_w )
{
m_knj_addr = (offset == 0) ? (m_knj_addr & 0xff00) | (data & 0xff) : (m_knj_addr & 0x00ff) | (data << 8);
}
@ -349,25 +288,27 @@ WRITE8_MEMBER( multi8_state::multi8_kanji_w )
static ADDRESS_MAP_START(multi8_mem, AS_PROGRAM, 8, multi8_state)
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x0000, 0x7fff) AM_ROM
AM_RANGE(0x8000, 0xbfff) AM_READWRITE( multi8_vram_r, multi8_vram_w )
AM_RANGE(0x8000, 0xbfff) AM_READWRITE(vram_r, vram_w)
AM_RANGE(0xc000, 0xffff) AM_RAM
ADDRESS_MAP_END
static ADDRESS_MAP_START(multi8_io, AS_IO, 8, multi8_state)
// ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0x00, 0x00) AM_READ(key_input_r) AM_WRITENOP//keyboard
AM_RANGE(0x01, 0x01) AM_READ(key_status_r) AM_WRITENOP//keyboard
AM_RANGE(0x00, 0x00) AM_READ(key_input_r) //keyboard
AM_RANGE(0x01, 0x01) AM_READ(key_status_r) //keyboard
AM_RANGE(0x18, 0x19) AM_DEVWRITE("aysnd", ay8910_device, address_data_w)
AM_RANGE(0x18, 0x18) AM_READ(ay8912_0_r)
AM_RANGE(0x1a, 0x1a) AM_READ(ay8912_1_r)
AM_RANGE(0x1c, 0x1d) AM_WRITE(multi8_6845_w)
// AM_RANGE(0x20, 0x21) //sio, cmt
// AM_RANGE(0x24, 0x27) //pit
AM_RANGE(0x28, 0x2b) AM_DEVREADWRITE("ppi8255_0", i8255_device, read, write)
// AM_RANGE(0x2c, 0x2d) //i8259
AM_RANGE(0x1c, 0x1c) AM_DEVREADWRITE("crtc", mc6845_device, status_r, address_w)
AM_RANGE(0x1d, 0x1d) AM_DEVREADWRITE("crtc", mc6845_device, register_r, register_w)
AM_RANGE(0x20, 0x20) AM_DEVREADWRITE("uart", i8251_device, data_r, data_w)
AM_RANGE(0x21, 0x21) AM_DEVREADWRITE("uart", i8251_device, status_r, control_w) //cmt
AM_RANGE(0x24, 0x27) AM_DEVREADWRITE("pit", pit8253_device, read, write) //pit
AM_RANGE(0x28, 0x2b) AM_DEVREADWRITE("ppi", i8255_device, read, write)
AM_RANGE(0x2c, 0x2d) AM_DEVREADWRITE("pic", pic8259_device, read, write) //i8259
AM_RANGE(0x30, 0x37) AM_READWRITE(pal_r,pal_w)
AM_RANGE(0x40, 0x41) AM_READWRITE(multi8_kanji_r,multi8_kanji_w) //kanji regs
AM_RANGE(0x40, 0x41) AM_READWRITE(kanji_r, kanji_w) //kanji regs
// AM_RANGE(0x70, 0x74) //upd765a fdc
// AM_RANGE(0x78, 0x78) //memory banking
ADDRESS_MAP_END
@ -602,7 +543,7 @@ WRITE8_MEMBER( multi8_state::portc_w )
WRITE8_MEMBER( multi8_state::ym2203_porta_w )
{
m_beeper->set_state((data & 0x08));
m_beeper->set_state(BIT(data, 3));
}
void multi8_state::machine_start()
@ -620,7 +561,7 @@ void multi8_state::machine_reset()
static MACHINE_CONFIG_START( multi8 )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu",Z80, XTAL_4MHz)
MCFG_CPU_ADD("maincpu", Z80, XTAL_4MHz)
MCFG_CPU_PROGRAM_MAP(multi8_mem)
MCFG_CPU_IO_MAP(multi8_io)
@ -630,8 +571,7 @@ static MACHINE_CONFIG_START( multi8 )
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
MCFG_SCREEN_SIZE(640, 200)
MCFG_SCREEN_VISIBLE_AREA(0, 320-1, 0, 200-1)
MCFG_SCREEN_UPDATE_DRIVER(multi8_state, screen_update_multi8)
MCFG_SCREEN_PALETTE("palette")
MCFG_SCREEN_UPDATE_DEVICE("crtc", mc6845_device, screen_update)
MCFG_PALETTE_ADD_3BIT_BRG("palette")
MCFG_GFXDECODE_ADD("gfxdecode", "palette", multi8)
@ -650,11 +590,23 @@ static MACHINE_CONFIG_START( multi8 )
MCFG_MC6845_ADD("crtc", H46505, "screen", XTAL_3_579545MHz/2) /* unknown clock, hand tuned to get ~60 fps */
MCFG_MC6845_SHOW_BORDER_AREA(false)
MCFG_MC6845_CHAR_WIDTH(8)
MCFG_MC6845_UPDATE_ROW_CB(multi8_state, crtc_update_row)
MCFG_DEVICE_ADD("ppi8255_0", I8255, 0)
MCFG_DEVICE_ADD("ppi", I8255, 0)
MCFG_I8255_IN_PORTA_CB(READ8(multi8_state, porta_r))
MCFG_I8255_OUT_PORTB_CB(WRITE8(multi8_state, portb_w))
MCFG_I8255_OUT_PORTC_CB(WRITE8(multi8_state, portc_w))
MCFG_DEVICE_ADD("uart_clock", CLOCK, 153600)
MCFG_CLOCK_SIGNAL_HANDLER(DEVWRITELINE("uart", i8251_device, write_txc))
MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("uart", i8251_device, write_rxc))
MCFG_DEVICE_ADD("uart", I8251, 0) // for cassette
MCFG_DEVICE_ADD("pit", PIT8253, 0)
MCFG_DEVICE_ADD("pic", PIC8259, 0)
//MCFG_UPD765A_ADD("fdc", false, true)
//MCFG_FLOPPY_DRIVE_ADD("fdc:0", multi8_floppies, "525hd", floppy_image_device::default_floppy_formats)
MACHINE_CONFIG_END
/* ROM definition */