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Diffstat (limited to 'src/mame/pc/poisk1.cpp')
-rw-r--r-- | src/mame/pc/poisk1.cpp | 771 |
1 files changed, 771 insertions, 0 deletions
diff --git a/src/mame/pc/poisk1.cpp b/src/mame/pc/poisk1.cpp new file mode 100644 index 00000000000..a20ad099217 --- /dev/null +++ b/src/mame/pc/poisk1.cpp @@ -0,0 +1,771 @@ +// license:BSD-3-Clause +// copyright-holders:Sergey Svishchev +/*************************************************************************** + + drivers/poisk1.c + + Driver file for Poisk-1 + + to do: + - cassette i/o and softlist + - use palette rom + - monochrome output + - trap: does memory always get written or it's up to NMI ISR to complete writes? + - keyboard layout for earliest revision (v89r0) + + slot devices: + - hard disk controllers + - network cards + - joystick, mouse, serial, parallel ports + - sound card + +***************************************************************************/ + +#include "emu.h" +#include "kb_poisk1.h" + +#include "bus/isa/isa.h" +#include "bus/isa/p1_fdc.h" +#include "bus/isa/xsu_cards.h" +#include "cpu/i86/i86.h" +#include "imagedev/cassette.h" +#include "machine/i8255.h" +#include "machine/pic8259.h" +#include "machine/pit8253.h" +#include "machine/ram.h" +#include "machine/timer.h" +#include "sound/spkrdev.h" +#include "video/cgapal.h" + +#include "emupal.h" +#include "screen.h" +#include "softlist_dev.h" +#include "speaker.h" + + +#define LOG_KEYBOARD (1U << 1) +#define LOG_DEBUG (1U << 2) + +//#define VERBOSE (LOG_DEBUG) +//#define LOG_OUTPUT_FUNC osd_printf_info +#include "logmacro.h" + +#define LOGKBD(...) LOGMASKED(LOG_KEYBOARD, __VA_ARGS__) +#define LOGDBG(...) LOGMASKED(LOG_DEBUG, __VA_ARGS__) + + +namespace { + +#define CGA_PALETTE_SETS 83 +/* one for colour, one for mono, 81 for colour composite */ + +#define BG_COLOR(x) (((x)&7) | (((x)&0x10) >> 1)) + +#define POISK1_UPDATE_ROW(name) \ + void name(bitmap_rgb32 &bitmap, const rectangle &cliprect, uint8_t *videoram, uint16_t ma, uint8_t ra, uint8_t stride) + + +class p1_state : public driver_device +{ +public: + p1_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag) + , m_maincpu(*this, "maincpu") + , m_pic8259(*this, "pic8259") + , m_pit8253(*this, "pit8253") + , m_ppi8255n1(*this, "ppi8255n1") + , m_ppi8255n2(*this, "ppi8255n2") + , m_isabus(*this, "isa") + , m_speaker(*this, "speaker") + , m_cassette(*this, "cassette") + , m_ram(*this, RAM_TAG) + , m_screen(*this, "screen") + , m_palette(*this, "palette") + , m_kbdio(*this, "Y%u", 1) + { } + + void poisk1(machine_config &config); + + void init_poisk1(); + + void fdc_config(device_t *device); + +protected: + virtual void machine_start() override ATTR_COLD; + virtual void machine_reset() override ATTR_COLD; + virtual void video_start() override ATTR_COLD; + + void vsync_changed(int state); + TIMER_DEVICE_CALLBACK_MEMBER(hsync_changed); + +private: + required_device<cpu_device> m_maincpu; + required_device<pic8259_device> m_pic8259; + required_device<pit8253_device> m_pit8253; + required_device<i8255_device> m_ppi8255n1; + required_device<i8255_device> m_ppi8255n2; + required_device<isa8_device> m_isabus; + required_device<speaker_sound_device> m_speaker; + required_device<cassette_image_device> m_cassette; + required_device<ram_device> m_ram; + required_device<screen_device> m_screen; + required_device<palette_device> m_palette; + + required_ioport_array<8> m_kbdio; + + uint8_t m_p1_spkrdata = 0; + uint8_t m_p1_input = 0; + + uint8_t m_kbpoll_mask = 0; + uint8_t m_vsync = 0; + uint8_t m_hsync = 0; + + struct + { + uint8_t trap[4]{}; + std::unique_ptr<uint8_t[]> videoram_base; + uint8_t *videoram = nullptr; + uint8_t mode_control_6a = 0; + uint8_t color_select_68 = 0; + uint8_t palette_lut_2bpp[4]{}; + int stride = 0; + void *update_row(bitmap_rgb32 &bitmap, const rectangle &cliprect, uint8_t *videoram, uint16_t ma, uint8_t ra, uint8_t stride); + } m_video; + + void p1_palette(palette_device &palette) const; + uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); + void set_palette_luts(); + POISK1_UPDATE_ROW(cga_gfx_2bpp_update_row); + POISK1_UPDATE_ROW(cga_gfx_1bpp_update_row); + POISK1_UPDATE_ROW(poisk1_gfx_1bpp_update_row); + + void p1_pit8253_out2_changed(int state); + void p1_speaker_set_spkrdata(int state); + uint8_t p1_trap_r(offs_t offset); + void p1_trap_w(offs_t offset, uint8_t data); + uint8_t p1_cga_r(offs_t offset); + void p1_cga_w(offs_t offset, uint8_t data); + void p1_vram_w(offs_t offset, uint8_t data); + + uint8_t p1_ppi_r(offs_t offset); + void p1_ppi_w(offs_t offset, uint8_t data); + void p1_ppi_porta_w(uint8_t data); + uint8_t p1_ppi_portb_r(); + uint8_t p1_ppi_portc_r(); + void p1_ppi_portc_w(uint8_t data); + void p1_ppi2_porta_w(uint8_t data); + void p1_ppi2_portb_w(uint8_t data); + uint8_t p1_ppi2_portc_r(); + + void poisk1_io(address_map &map) ATTR_COLD; + void poisk1_map(address_map &map) ATTR_COLD; +}; + +/* + * onboard devices: + */ + +/* + * Poisk-1 doesn't have a mc6845 and always runs in graphics mode. Text mode is emulated by BIOS; + * NMI is triggered on access to video memory and to mc6845 ports. Address and data are latched into: + * + * Port 28H (offset 0) -- lower 8 bits of address + * Port 29H (offset 1) -- high -//- and mode bits + * Port 2AH (offset 2) -- data + */ + +uint8_t p1_state::p1_trap_r(offs_t offset) +{ + uint8_t data = m_video.trap[offset]; + LOG("trap R %.2x $%02x\n", 0x28 + offset, data); + if (offset == 0) m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE); + return data; +} + +void p1_state::p1_trap_w(offs_t offset, uint8_t data) +{ + LOG("trap W %.2x $%02x\n", 0x28 + offset, data); +} + +uint8_t p1_state::p1_cga_r(offs_t offset) +{ + switch (offset) + { + case 4: case 5: case 8: case 9: + LOG("cga R %.4x\n", offset + 0x3d0); + m_video.trap[2] = 0; + m_video.trap[1] = 0x43; + m_video.trap[0] = offset + 0xd0; + m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE); + break; + + case 10: + return m_ppi8255n2->read(2); + + default: + break; + } + return 0; +} + +void p1_state::p1_cga_w(offs_t offset, uint8_t data) +{ + switch (offset) + { + case 4: case 5: case 8: case 9: + LOG("cga W %.4x $%02x\n", offset + 0x3d0, data); + m_video.trap[2] = data; + m_video.trap[1] = 0xC3; + m_video.trap[0] = offset + 0xd0; + m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE); + break; + + default: + break; + } +} + +void p1_state::p1_vram_w(offs_t offset, uint8_t data) +{ + LOGDBG("vram W %.4x $%02x\n", offset, data); + if (m_video.videoram_base) m_video.videoram_base[offset] = data; + m_video.trap[2] = data; + m_video.trap[1] = 0x80 | ((offset >> 8) & 0x3f); + m_video.trap[0] = offset & 255; + m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE); +} + +// CGA emulator +/* +068h D42 0..2 R, G, B XXX Foreground/Background color + 3 NMI DISABLE NMI trap 1: Disabled 0: Enabled + 4 PALETTE XXX Colour palette 0: XXX 1: XXX + 5 I (INTENS) XXX Foreground/Background color intensity + 6 DISPLAY BANK XXX Video RAM page + 7 HIRES 1: 640x200 0: 320x200 +*/ + +void p1_state::p1_ppi2_porta_w(uint8_t data) +{ + address_space &program = m_maincpu->space(AS_PROGRAM); + + LOG("color_select_68 W $%02x\n", data); + + // NMI DISABLE + if (BIT((data ^ m_video.color_select_68), 3)) + { + if (BIT(data, 3)) + program.install_writeonly(0xb8000, 0xbbfff, m_video.videoram_base.get()); + else + program.install_write_handler(0xb8000, 0xbbfff, write8sm_delegate(*this, FUNC(p1_state::p1_vram_w))); + } + // DISPLAY BANK + if (BIT((data ^ m_video.color_select_68), 6)) + { + + if (BIT(data, 6)) + m_video.videoram = m_video.videoram_base.get() + 0x4000; + else + m_video.videoram = m_video.videoram_base.get(); + } + // HIRES -- XXX + if (BIT((data ^ m_video.color_select_68), 7)) + { + if (BIT(data, 7)) + m_screen->set_visible_area(0, 640 - 1, 0, 200 - 1); + else + m_screen->set_visible_area(0, 320 - 1, 0, 200 - 1); + } + m_video.color_select_68 = data; + set_palette_luts(); +} + +/* +06Ah Dxx 6 Enable/Disable color burst (?) + 7 Enable/Disable D7H/D7L +*/ + +void p1_state::p1_ppi_portc_w(uint8_t data) +{ + LOG("mode_control_6a W $%02x\n", data); + + m_video.mode_control_6a = data; + set_palette_luts(); +} + +void p1_state::set_palette_luts(void) +{ + /* Setup 2bpp palette lookup table */ + // HIRES + if (m_video.color_select_68 & 0x80) + { + m_video.palette_lut_2bpp[0] = 0; + } + else + { + m_video.palette_lut_2bpp[0] = BG_COLOR(m_video.color_select_68); + } + // B&W -- XXX +/* + if ( m_video.mode_control_6a & 0x40 ) + { + m_video.palette_lut_2bpp[1] = ( ( m_video.color_select_68 & 0x20 ) >> 2 ) | 3; + m_video.palette_lut_2bpp[2] = ( ( m_video.color_select_68 & 0x20 ) >> 2 ) | 4; + m_video.palette_lut_2bpp[3] = ( ( m_video.color_select_68 & 0x20 ) >> 2 ) | 7; + } + else +*/ + { + // PALETTE + if ( m_video.color_select_68 & 0x20 ) + { + m_video.palette_lut_2bpp[1] = ( ( m_video.color_select_68 & 0x20 ) >> 2 ) | 3; + m_video.palette_lut_2bpp[2] = ( ( m_video.color_select_68 & 0x20 ) >> 2 ) | 5; + m_video.palette_lut_2bpp[3] = ( ( m_video.color_select_68 & 0x20 ) >> 2 ) | 7; + } + else + { + m_video.palette_lut_2bpp[1] = ( ( m_video.color_select_68 & 0x20 ) >> 2 ) | 2; + m_video.palette_lut_2bpp[2] = ( ( m_video.color_select_68 & 0x20 ) >> 2 ) | 4; + m_video.palette_lut_2bpp[3] = ( ( m_video.color_select_68 & 0x20 ) >> 2 ) | 6; + } + } +} + +/*************************************************************************** + Draw graphics mode with 320x200 pixels (default) with 2 bits/pixel. + Even scanlines are from CGA_base + 0x0000, odd from CGA_base + 0x2000 + cga fetches 2 byte per mc6845 access. +***************************************************************************/ + +POISK1_UPDATE_ROW(p1_state::cga_gfx_2bpp_update_row) +{ + rgb_t const *const palette = m_palette->palette()->entry_list_raw(); + uint32_t *p = &bitmap.pix(ra); + + if (ra == 0) LOGDBG("cga_gfx_2bpp_update_row\n"); + uint16_t odd = (ra & 1) << 13; + uint16_t offset = (ma & 0x1fff) | odd; + for (int i = 0; i < stride; i++) + { + uint8_t data = videoram[ offset++ ]; + + *p = palette[m_video.palette_lut_2bpp[ ( data >> 6 ) & 0x03 ]]; p++; + *p = palette[m_video.palette_lut_2bpp[ ( data >> 4 ) & 0x03 ]]; p++; + *p = palette[m_video.palette_lut_2bpp[ ( data >> 2 ) & 0x03 ]]; p++; + *p = palette[m_video.palette_lut_2bpp[ data & 0x03 ]]; p++; + } +} + +/*************************************************************************** + Draw graphics mode with 640x200 pixels (default). + The cell size is 1x1 (1 scanline is the real default) + Even scanlines are from CGA_base + 0x0000, odd from CGA_base + 0x2000 +***************************************************************************/ + +POISK1_UPDATE_ROW(p1_state::cga_gfx_1bpp_update_row) +{ + rgb_t const *const palette = m_palette->palette()->entry_list_raw(); + uint32_t *p = &bitmap.pix(ra); + uint8_t fg = 15, bg = BG_COLOR(m_video.color_select_68); + + if (ra == 0) LOGDBG("cga_gfx_1bpp_update_row bg %d\n", bg); + uint16_t odd = (ra & 1) << 13; + uint16_t offset = (ma & 0x1fff) | odd; + for (int i = 0; i < stride; i++) + { + uint8_t data = videoram[ offset++ ]; + + *p = palette[( data & 0x80 ) ? fg : bg ]; p++; + *p = palette[( data & 0x40 ) ? fg : bg ]; p++; + *p = palette[( data & 0x20 ) ? fg : bg ]; p++; + *p = palette[( data & 0x10 ) ? fg : bg ]; p++; + *p = palette[( data & 0x08 ) ? fg : bg ]; p++; + *p = palette[( data & 0x04 ) ? fg : bg ]; p++; + *p = palette[( data & 0x02 ) ? fg : bg ]; p++; + *p = palette[( data & 0x01 ) ? fg : bg ]; p++; + } +} + +/*************************************************************************** + Draw graphics mode with 640x200 pixels + extra highlight color for text + mode emulation + Even scanlines are from CGA_base + 0x0000, odd from CGA_base + 0x2000 +***************************************************************************/ + +POISK1_UPDATE_ROW(p1_state::poisk1_gfx_1bpp_update_row) +{ + rgb_t const *const palette = m_palette->palette()->entry_list_raw(); + uint32_t *p = &bitmap.pix(ra); + uint8_t bg = BG_COLOR(m_video.color_select_68); + + if (ra == 0) LOGDBG("poisk1_gfx_1bpp_update_row bg %d\n", bg); + uint16_t odd = (ra & 1) << 13; + uint16_t offset = (ma & 0x1fff) | odd; + for (int i = 0; i < stride; i++) + { + uint8_t data = videoram[ offset++ ]; + + uint8_t fg = (data & 0x80) ? ( (m_video.color_select_68 & 0x20) ? 10 : 11 ) : 15; // XXX + *p = palette[bg]; p++; + *p = palette[( data & 0x40 ) ? fg : bg ]; p++; + *p = palette[( data & 0x20 ) ? fg : bg ]; p++; + *p = palette[( data & 0x10 ) ? fg : bg ]; p++; + *p = palette[( data & 0x08 ) ? fg : bg ]; p++; + *p = palette[( data & 0x04 ) ? fg : bg ]; p++; + *p = palette[( data & 0x02 ) ? fg : bg ]; p++; + *p = palette[( data & 0x01 ) ? fg : bg ]; p++; + } +} + +// Initialise the cga palette +void p1_state::p1_palette(palette_device &palette) const +{ + for (int i = 0; i < CGA_PALETTE_SETS * 16; i++) + palette.set_pen_color(i, cga_palette[i][0], cga_palette[i][1], cga_palette[i][2]); +} + +void p1_state::video_start() +{ + address_space &space = m_maincpu->space(AS_PROGRAM); + + m_video = decltype(m_video)(); + m_video.videoram_base = std::make_unique<uint8_t[]>(0x8000); + m_video.videoram = m_video.videoram_base.get(); + m_video.stride = 80; + + space.install_ram(0xb8000, 0xbffff, m_video.videoram); +} + +void p1_state::vsync_changed(int state) +{ + m_vsync = state ? 9 : 0; +} + +TIMER_DEVICE_CALLBACK_MEMBER(p1_state::hsync_changed) +{ + m_hsync = param & 1; +} + +uint32_t p1_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) +{ + uint16_t ra, ma = 0; + + if (!m_video.stride || !m_video.videoram) return 0; + + // bit 6 of 6Ah disables color burst -- not implemented + for (ra = cliprect.min_y; ra <= cliprect.max_y; ra++) + { + if (BIT(m_video.color_select_68, 7)) + { + if (BIT(m_video.mode_control_6a, 7)) + { + cga_gfx_1bpp_update_row(bitmap, cliprect, m_video.videoram, ma, ra, m_video.stride); + } + else + { + poisk1_gfx_1bpp_update_row(bitmap, cliprect, m_video.videoram, ma, ra, m_video.stride); + } + } + else + { + cga_gfx_2bpp_update_row(bitmap, cliprect, m_video.videoram, ma, ra, m_video.stride); + } + if (ra & 1) ma += m_video.stride; + } + + return 0; +} + +// Timer. Poisk-1 uses single XTAL for everything? -- check + +void p1_state::p1_speaker_set_spkrdata(int state) +{ + m_p1_spkrdata = state ? 1 : 0; + m_speaker->level_w(m_p1_spkrdata & m_p1_input); +} + +void p1_state::p1_pit8253_out2_changed(int state) +{ + m_p1_input = state ? 1 : 0; + m_speaker->level_w(m_p1_spkrdata & m_p1_input); +} + +// Keyboard (via PPI) + +void p1_state::p1_ppi_porta_w(uint8_t data) +{ + m_kbpoll_mask = data; + LOGDBG("p1_ppi_porta_w %02X <- %02X\n", m_kbpoll_mask, data); +} + +uint8_t p1_state::p1_ppi_portb_r() +{ + uint16_t key = 0xffff; + uint8_t ret = 0; + + for (int i = 0; i < 8; i++) + { + if (BIT(m_kbpoll_mask, i)) + { + key &= m_kbdio[i]->read(); + } + } + + ret = key & 0xff; +// LOG("p1_ppi_portb_r = %02X\n", ret); + return ret; +} + +uint8_t p1_state::p1_ppi_portc_r() +{ + uint16_t key = 0xffff; + uint8_t ret = 0; + + for (int i = 0; i < 8; i++) + { + if (BIT(m_kbpoll_mask, i)) + { + key &= m_kbdio[i]->read(); + } + } + + ret = (key >> 8) & 0xff; + LOGDBG("p1_ppi_portc_r = %02X\n", ret); + return ret; +} + +// XXX + +uint8_t p1_state::p1_ppi2_portc_r() +{ + int data = m_vsync | m_hsync | 0xc6; + double tap_val = m_cassette->input(); + + data |= (tap_val < 0 ? 0x10 : 0x00); + data |= (m_p1_input << 5); + + LOGDBG("p1_ppi2_portc_r = %02X (tap_val %f) at %s\n", data, tap_val, machine().describe_context()); + return data; +} + +void p1_state::p1_ppi2_portb_w(uint8_t data) +{ + m_pit8253->write_gate2(BIT(data, 0)); + p1_speaker_set_spkrdata(data & 0x02); +} + +uint8_t p1_state::p1_ppi_r(offs_t offset) +{ + switch (offset) + { + case 0: + return m_ppi8255n1->read(0); + case 9: + case 10: + case 11: + return m_ppi8255n1->read(offset - 8); + case 8: + return m_ppi8255n2->read(0); + case 1: + case 2: + case 3: + return m_ppi8255n2->read(offset); + default: + LOG("p1ppi R %.2x (unimp)\n", 0x60 + offset); + return 0xff; + } +} + +void p1_state::p1_ppi_w(offs_t offset, uint8_t data) +{ + switch (offset) + { + case 0: + return m_ppi8255n1->write(0, data); + case 9: + case 10: + case 11: + return m_ppi8255n1->write(offset - 8, data); + case 8: + return m_ppi8255n2->write(0, data); + case 1: + case 2: + case 3: + return m_ppi8255n2->write(offset, data); + default: + LOG("p1ppi W %.2x $%02x (unimp)\n", 0x60 + offset, data); + return; + } +} + +/********************************************************** + * + * NMI handling + * + **********************************************************/ + +void p1_state::init_poisk1() +{ + address_space &program = m_maincpu->space(AS_PROGRAM); + + program.install_ram(0, m_ram->size() - 1, m_ram->pointer()); +} + +void p1_state::machine_start() +{ +} + +void p1_state::machine_reset() +{ + m_kbpoll_mask = 0; + m_hsync = 0; + m_vsync = 0; +} + +/* + * macros + */ + +void p1_state::fdc_config(device_t *device) +{ + p1_fdc_device &fdc = *downcast<p1_fdc_device*>(device); + fdc.set_cpu(m_maincpu); +} + +void p1_state::poisk1_map(address_map &map) +{ + map.unmap_value_high(); + map(0xfc000, 0xfffff).rom().region("bios", 0xc000); +} + +// address decoder PROM maps 20-21, 28-2A, 40-43, 60-63, 68-6B, 3D4-3D5, and 3D8-3DA +void p1_state::poisk1_io(address_map &map) +{ + map(0x0020, 0x0021).rw(m_pic8259, FUNC(pic8259_device::read), FUNC(pic8259_device::write)); + map(0x0028, 0x002A).rw(FUNC(p1_state::p1_trap_r), FUNC(p1_state::p1_trap_w)); + map(0x0040, 0x0043).rw(m_pit8253, FUNC(pit8253_device::read), FUNC(pit8253_device::write)); + // can't use regular rw(), because 1st PPI is mapped to 60, 69-6B and 2nd PPI -- to 68, 61-63 + map(0x0060, 0x006B).rw(FUNC(p1_state::p1_ppi_r), FUNC(p1_state::p1_ppi_w)); + map(0x03D0, 0x03DA).rw(FUNC(p1_state::p1_cga_r), FUNC(p1_state::p1_cga_w)); +} + +static INPUT_PORTS_START( poisk1 ) + PORT_INCLUDE( poisk1_keyboard_v91 ) +INPUT_PORTS_END + +void p1_state::poisk1(machine_config &config) +{ + /* basic machine hardware */ + I8088(config, m_maincpu, 5000000); + m_maincpu->set_addrmap(AS_PROGRAM, &p1_state::poisk1_map); + m_maincpu->set_addrmap(AS_IO, &p1_state::poisk1_io); + m_maincpu->set_irq_acknowledge_callback("pic8259", FUNC(pic8259_device::inta_cb)); + + PIT8253(config, m_pit8253); + m_pit8253->set_clk<0>(XTAL(15'000'000)/12); /* heartbeat IRQ */ + m_pit8253->out_handler<0>().set(m_pic8259, FUNC(pic8259_device::ir0_w)); + m_pit8253->set_clk<1>(XTAL(15'000'000)/12); /* keyboard poll -- XXX edge or level triggered? */ + m_pit8253->out_handler<1>().set(m_pic8259, FUNC(pic8259_device::ir6_w)); + m_pit8253->set_clk<2>(XTAL(15'000'000)/12); /* pio port c pin 4, and speaker polling enough */ + m_pit8253->out_handler<2>().set(FUNC(p1_state::p1_pit8253_out2_changed)); + + PIC8259(config, m_pic8259); + m_pic8259->out_int_callback().set_inputline(m_maincpu, 0); + + I8255A(config, m_ppi8255n1); + m_ppi8255n1->out_pa_callback().set(FUNC(p1_state::p1_ppi_porta_w)); // 60h + m_ppi8255n1->in_pb_callback().set(FUNC(p1_state::p1_ppi_portb_r)); // 69h + m_ppi8255n1->in_pc_callback().set(FUNC(p1_state::p1_ppi_portc_r)); // 6Ah + m_ppi8255n1->out_pc_callback().set(FUNC(p1_state::p1_ppi_portc_w)); + + I8255A(config, m_ppi8255n2); + m_ppi8255n2->out_pa_callback().set(FUNC(p1_state::p1_ppi2_porta_w)); // 68h + m_ppi8255n2->out_pb_callback().set(FUNC(p1_state::p1_ppi2_portb_w)); // 61h + m_ppi8255n2->in_pc_callback().set(FUNC(p1_state::p1_ppi2_portc_r)); // 62h and 3DAh + + ISA8(config, m_isabus, 0); + m_isabus->set_memspace("maincpu", AS_PROGRAM); + m_isabus->set_iospace("maincpu", AS_IO); + m_isabus->irq2_callback().set(m_pic8259, FUNC(pic8259_device::ir2_w)); + m_isabus->irq3_callback().set(m_pic8259, FUNC(pic8259_device::ir3_w)); + m_isabus->irq4_callback().set(m_pic8259, FUNC(pic8259_device::ir4_w)); + m_isabus->irq5_callback().set(m_pic8259, FUNC(pic8259_device::ir5_w)); + m_isabus->irq7_callback().set(m_pic8259, FUNC(pic8259_device::ir7_w)); + m_isabus->iochrdy_callback().set_inputline(m_maincpu, INPUT_LINE_HALT); + + // FIXME: determine ISA bus clock + ISA8_SLOT(config, "isa1", 0, m_isabus, p1_isa8_cards, "fdc", false).set_option_machine_config("fdc", [this](device_t *device) { fdc_config(device); }); + ISA8_SLOT(config, "isa2", 0, m_isabus, p1_isa8_cards, nullptr, false).set_option_machine_config("fdc", [this](device_t *device) { fdc_config(device); }); + ISA8_SLOT(config, "isa3", 0, m_isabus, p1_isa8_cards, nullptr, false).set_option_machine_config("fdc", [this](device_t *device) { fdc_config(device); }); + ISA8_SLOT(config, "isa4", 0, m_isabus, p1_isa8_cards, nullptr, false).set_option_machine_config("fdc", [this](device_t *device) { fdc_config(device); }); + + SPEAKER(config, "mono").front_center(); + SPEAKER_SOUND(config, m_speaker).add_route(ALL_OUTPUTS, "mono", 1.00); + + // fake hsync + TIMER(config, "scantimer").configure_scanline(FUNC(p1_state::hsync_changed), "screen", 0, 1); + + SCREEN(config, m_screen, SCREEN_TYPE_RASTER); + m_screen->set_raw(XTAL(15'000'000), 912,0,640, 262,0,200); + m_screen->set_screen_update(FUNC(p1_state::screen_update)); + m_screen->screen_vblank().set(FUNC(p1_state::vsync_changed)); + + /* XXX verify palette */ + PALETTE(config, m_palette, FUNC(p1_state::p1_palette), CGA_PALETTE_SETS * 16); + + CASSETTE(config, m_cassette); + m_cassette->set_default_state(CASSETTE_STOPPED | CASSETTE_MOTOR_ENABLED | CASSETTE_SPEAKER_ENABLED); + m_cassette->add_route(ALL_OUTPUTS, "mono", 0.05); + + SOFTWARE_LIST(config, "flop_list").set_original("poisk1_flop"); +// SOFTWARE_LIST(config, "cass_list").set_original("poisk1_cass"); + + /* internal ram */ + RAM(config, RAM_TAG).set_default_size("512K"); +} + +ROM_START( poisk1 ) + ROM_REGION(0x10000, "bios", 0) + + ROM_DEFAULT_BIOS("v91") + ROM_SYSTEM_BIOS(0, "v89r0", "1989r0") + ROMX_LOAD("bios.rf6", 0xe000, 0x2000, CRC(c0f333e3) SHA1(a44f355b7deae3693e1462d57543a42944fd0969), ROM_BIOS(0)) + ROM_SYSTEM_BIOS(1, "v89", "1989") + ROMX_LOAD("biosp1s.rf4", 0xe000, 0x2000, CRC(1a85f671) SHA1(f0e59b2c4d92164abca55a96a58071ce869ff988), ROM_BIOS(1)) + ROM_SYSTEM_BIOS(2, "v91", "1991") + ROMX_LOAD("poisk_1991.bin", 0xe000, 0x2000, CRC(d61c56fd) SHA1(de202e1f7422d585a1385a002a4fcf9d756236e5), ROM_BIOS(2)) + ROM_SYSTEM_BIOS(3, "v91r2", "1991r2") + ROMX_LOAD("p_bios_nm.bin", 0xe000, 0x2000, CRC(84430b4f) SHA1(3e477962be3cea09662cb2e3ad9966ad01c7455d), ROM_BIOS(3)) + + ROM_SYSTEM_BIOS(4, "test1", "Test 1") + ROMX_LOAD("test1.rf6", 0x00000, 0x2000, CRC(a5f05dff) SHA1(21dd0cea605bd7be22e94f8355d86b2478d9527e), ROM_BIOS(4)) + ROM_SYSTEM_BIOS(5, "test2", "Test 2") + ROMX_LOAD("test2.rf6", 0x00000, 0x2000, CRC(eff730e4) SHA1(fcbc08de9b8592c974eaea837839f1a9caf36a75), ROM_BIOS(5)) + ROM_SYSTEM_BIOS(6, "test3", "Test 3") + ROMX_LOAD("test3.rf6", 0x00000, 0x2000, CRC(23025dc9) SHA1(dca4cb580162bb28f6e49ff625b677001d40d573), ROM_BIOS(6)) + ROM_SYSTEM_BIOS(7, "test4", "Test 4") + ROMX_LOAD("test4.rf6", 0x00000, 0x2000, CRC(aac8fc5e) SHA1(622abb5ac66d38a474ee54fe016aff0ba0b5794f), ROM_BIOS(7)) + ROM_SYSTEM_BIOS(8, "test5", "Test 5") + ROMX_LOAD("test5.rf6", 0x00000, 0x2000, CRC(f308e679) SHA1(37bd35f62015d338b3347fd4e3ec455eab048b66), ROM_BIOS(8)) + + // 0xc0000, sets 80x25 text and loops asking for 'Boot from hard disk (Y or N)?' + ROM_LOAD("boot_net.rf4", 0x00000, 0x2000, CRC(316c2030) SHA1(d043325596455772252e465b85321f1b5c529d0b)) // NET BIOS + // 0xc0000, accesses ports 0x90..0x97 + ROM_LOAD("pois_net.bin", 0x00000, 0x2000, CRC(cf9dd80a) SHA1(566bcb40c0cb2c8bfd5b485f0db689fdeaca3e86)) // ??? BIOS + + ROM_REGION(0x2000,"gfx1", ROMREGION_ERASE00) + ROM_LOAD("poisk.cga", 0x0000, 0x0800, CRC(f6eb39f0) SHA1(0b788d8d7a8e92cc612d044abcb2523ad964c200)) +ROM_END + +} // anonymous namespace + + +/*************************************************************************** + + Game driver(s) + +***************************************************************************/ + +// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS +COMP( 1989, poisk1, ibm5150, 0, poisk1, poisk1, p1_state, init_poisk1, "Electronmash", "Poisk-1", 0 ) |