// license:BSD-3-Clause
// copyright-holders:Curt Coder
/***************************************************************************
MOS 7360/8360 Text Edit Device (TED) emulation
****************************************************************************
_____ _____
DB6 1 |* \_/ | 40 Vcc
DB5 2 | | 39 DB7
DB4 3 | | 38 DB8
DB3 4 | | 37 DB9
DB2 5 | | 36 DB10
DB1 6 | | 35 DB11
DB0 7 | | 34 A13
_IRQ 8 | | 33 A12
LP 9 | | 32 A11
_CS 10 | MOS7360 | 31 A10
R/W 11 | | 30 A9
BA 12 | | 29 A8
Vdd 13 | | 28 A7
COLOR 14 | | 27 A6
S/LUM 15 | | 26 A5
AEC 16 | | 25 A4
PH0 17 | | 24 A3
PHIN 18 | | 23 A2
PHCOL 19 | | 22 A1
Vss 20 |_____________| 21 A0
***************************************************************************/
#ifndef MAME_SOUND_MOS7360_H
#define MAME_SOUND_MOS7360_H
#pragma once
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
/* of course you clock select an other clock, but for accurate */
/* video timing (these are used in c16/c116/plus4) */
#define TED7360NTSC_CLOCK (14318180/4)
#define TED7360PAL_CLOCK (17734470/5)
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
// ======================> mos7360_device
class mos7360_device : public device_t,
public device_memory_interface,
public device_sound_interface,
public device_video_interface
{
public:
static constexpr unsigned NTSC_VRETRACERATE = 60;
static constexpr unsigned PAL_VRETRACERATE = 50;
static constexpr unsigned HRETRACERATE = 15625;
/* the following values depend on the VIC clock,
* but to achieve TV-frequency the clock must have a fix frequency */
static constexpr unsigned HSIZE = 320;
static constexpr unsigned VSIZE = 200;
/* pal 50 Hz vertical screen refresh, screen consists of 312 lines
* ntsc 60 Hz vertical screen refresh, screen consists of 262 lines */
static constexpr unsigned NTSC_LINES = 261;
static constexpr unsigned PAL_LINES = 312;
// construction/destruction
mos7360_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// callbacks
auto write_irq_callback() { return m_write_irq.bind(); }
auto read_k_callback() { return m_read_k.bind(); }
virtual space_config_vector memory_space_config() const override;
uint8_t read(address_space &space, offs_t offset, int &cs0, int &cs1);
void write(address_space &space, offs_t offset, uint8_t data, int &cs0, int &cs1);
uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
void mos7360_videoram_map(address_map &map);
protected:
enum
{
TYPE_7360
};
enum
{
TIMER_ID_1,
TIMER_ID_2,
TIMER_ID_3,
TIMER_LINE,
TIMER_FRAME
};
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
// device_sound_interface callbacks
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override;
inline void set_interrupt(int mask);
inline void clear_interrupt(int mask);
inline int rastercolumn();
inline uint8_t read_ram(offs_t offset);
inline uint8_t read_rom(offs_t offset);
void draw_character(int ybegin, int yend, int ch, int yoff, int xoff, uint16_t *color);
void draw_character_multi(int ybegin, int yend, int ch, int yoff, int xoff);
void draw_bitmap(int ybegin, int yend, int ch, int yoff, int xoff);
void draw_bitmap_multi(int ybegin, int yend, int ch, int yoff, int xoff);
void draw_cursor(int ybegin, int yend, int yoff, int xoff, int color);
void drawlines(int first, int last);
void soundport_w(int offset, int data);
void frame_interrupt_gen();
void raster_interrupt_gen();
int cs0_r(offs_t offset);
int cs1_r(offs_t offset);
const address_space_config m_videoram_space_config;
devcb_write_line m_write_irq;
devcb_read8 m_read_k;
sound_stream *m_stream;
uint8_t m_reg[0x20];
uint8_t m_last_data;
bitmap_rgb32 m_bitmap;
int m_rom;
int m_frame_count;
int m_lines;
int m_timer1_active, m_timer2_active, m_timer3_active;
emu_timer *m_timer1, *m_timer2, *m_timer3;
int m_cursor1;
int m_chargenaddr, m_bitmapaddr, m_videoaddr;
int m_x_begin, m_x_end;
int m_y_begin, m_y_end;
uint16_t m_c16_bitmap[2], m_bitmapmulti[4], m_mono[2], m_monoinversed[2], m_multi[4], m_ecmcolor[2], m_colors[5];
int m_rasterline, m_lastline;
double m_rastertime;
/* sound part */
std::unique_ptr<uint8_t[]> m_noise;
int m_tone1pos, m_tone2pos,
m_tone1samples, m_tone2samples,
m_noisesize, /* number of samples */
m_noisepos, /* pos of tone */
m_noisesamples; /* count of samples to give out per tone */
emu_timer *m_line_timer;
emu_timer *m_frame_timer;
};
// device type definition
DECLARE_DEVICE_TYPE(MOS7360, mos7360_device)
#endif // MAME_SOUND_MOS7360_H