diff options
Diffstat (limited to 'src/mame/drivers/poisk1.cpp')
-rw-r--r-- | src/mame/drivers/poisk1.cpp | 398 |
1 files changed, 387 insertions, 11 deletions
diff --git a/src/mame/drivers/poisk1.cpp b/src/mame/drivers/poisk1.cpp index 0ac808a8553..96381face12 100644 --- a/src/mame/drivers/poisk1.cpp +++ b/src/mame/drivers/poisk1.cpp @@ -10,14 +10,24 @@ #include "emu.h" -#include "includes/poisk1.h" #include "machine/kb_poisk1.h" +#include "video/cgapal.h" +#include "imagedev/cassette.h" +#include "machine/i8255.h" +#include "bus/isa/isa.h" +#include "machine/pic8259.h" +#include "machine/pit8253.h" +#include "machine/ram.h" +#include "bus/isa/xsu_cards.h" +#include "sound/speaker.h" #include "cpu/i86/i86.h" #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 VERBOSE_DBG 0 #define DBG_LOG(N,M,A) \ @@ -30,10 +40,380 @@ } \ } while (0) +#define POISK1_UPDATE_ROW(name) \ + void name(bitmap_rgb32 &bitmap, const rectangle &cliprect, UINT8 *videoram, UINT16 ma, UINT8 ra, UINT8 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_palette(*this, "palette") { } + + 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<palette_device> m_palette; + + DECLARE_DRIVER_INIT(poisk1); + DECLARE_MACHINE_START(poisk1); + DECLARE_MACHINE_RESET(poisk1); + + DECLARE_PALETTE_INIT(p1); + virtual void video_start() override; + UINT32 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); + + DECLARE_WRITE_LINE_MEMBER(p1_pit8253_out2_changed); + DECLARE_WRITE_LINE_MEMBER(p1_speaker_set_spkrdata); + UINT8 m_p1_spkrdata; + UINT8 m_p1_input; + + UINT8 m_kbpoll_mask; + + struct + { + UINT8 trap[4]; + std::unique_ptr<UINT8[]> videoram_base; + UINT8 *videoram; + UINT8 mode_control_6a; + UINT8 color_select_68; + UINT8 palette_lut_2bpp[4]; + int stride; + void *update_row(bitmap_rgb32 &bitmap, const rectangle &cliprect, UINT8 *videoram, UINT16 ma, UINT8 ra, UINT8 stride); + } m_video; + + DECLARE_READ8_MEMBER(p1_trap_r); + DECLARE_WRITE8_MEMBER(p1_trap_w); + DECLARE_READ8_MEMBER(p1_cga_r); + DECLARE_WRITE8_MEMBER(p1_cga_w); + DECLARE_WRITE8_MEMBER(p1_vram_w); + + DECLARE_READ8_MEMBER(p1_ppi_r); + DECLARE_WRITE8_MEMBER(p1_ppi_w); + DECLARE_WRITE8_MEMBER(p1_ppi_porta_w); + DECLARE_READ8_MEMBER(p1_ppi_porta_r); + DECLARE_READ8_MEMBER(p1_ppi_portb_r); + DECLARE_READ8_MEMBER(p1_ppi_portc_r); + DECLARE_WRITE8_MEMBER(p1_ppi_portc_w); + DECLARE_WRITE8_MEMBER(p1_ppi2_porta_w); + DECLARE_WRITE8_MEMBER(p1_ppi2_portb_w); + DECLARE_READ8_MEMBER(p1_ppi2_portc_r); + const char *m_cputag; +}; + /* * 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 + */ + +READ8_MEMBER(p1_state::p1_trap_r) +{ + UINT8 data = m_video.trap[offset]; + DBG_LOG(1,"trap",("R %.2x $%02x\n", 0x28+offset, data)); + if (offset == 0) + m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE); + return data; +} + +WRITE8_MEMBER(p1_state::p1_trap_w) +{ + DBG_LOG(1,"trap",("W %.2x $%02x\n", 0x28+offset, data)); +} + +READ8_MEMBER(p1_state::p1_cga_r) +{ + m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE); + return 0; +} + +WRITE8_MEMBER(p1_state::p1_cga_w) +{ + UINT16 port = offset + 0x3d0; + + DBG_LOG(1,"cga",("W %.4x $%02x\n", port, data)); + m_video.trap[2] = data; + m_video.trap[1] = 0xC0 | ((port >> 8) & 0x3f); + m_video.trap[0] = port & 255; + m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE); +} + +WRITE8_MEMBER(p1_state::p1_vram_w) +{ + DBG_LOG(1,"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 +*/ + +WRITE8_MEMBER(p1_state::p1_ppi2_porta_w) +{ + address_space &space_prg = m_maincpu->space(AS_PROGRAM); + + DBG_LOG(1,"color_select_68",("W $%02x\n", data)); + + // NMI DISABLE + if (BIT(data, 3) != BIT(m_video.color_select_68, 3)) { + if (BIT(data, 3)) { + space_prg.install_readwrite_bank( 0xb8000, 0xbbfff, "bank11" ); + } else { + space_prg.install_read_bank( 0xb8000, 0xbbfff, "bank11" ); + space_prg.install_write_handler( 0xb8000, 0xbbfff, WRITE8_DELEGATE(p1_state, p1_vram_w) ); + } + } + // DISPLAY BANK + if (BIT(data, 6) != BIT(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, 7) != BIT(m_video.color_select_68, 7)) { + if (BIT(data, 7)) + machine().first_screen()->set_visible_area(0, 640-1, 0, 200-1); + else + machine().first_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 +*/ + +WRITE8_MEMBER(p1_state::p1_ppi_portc_w) +{ + DBG_LOG(1,"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 ) +{ + const rgb_t *palette = m_palette->palette()->entry_list_raw(); + UINT32 *p = &bitmap.pix32(ra); + UINT16 odd, offset; + int i; + + if ( ra == 0 ) DBG_LOG(1,"cga_gfx_2bpp_update_row",("\n")); + odd = ( ra & 1 ) << 13; + offset = ( ma & 0x1fff ) | odd; + for ( i = 0; i < stride; i++ ) + { + UINT8 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 ) +{ + const rgb_t *palette = m_palette->palette()->entry_list_raw(); + UINT32 *p = &bitmap.pix32(ra); + UINT8 fg = 15, bg = BG_COLOR(m_video.color_select_68); + UINT16 odd, offset; + int i; + + if ( ra == 0 ) DBG_LOG(1,"cga_gfx_1bpp_update_row",("bg %d\n", bg)); + odd = ( ra & 1 ) << 13; + offset = ( ma & 0x1fff ) | odd; + for ( i = 0; i < stride; i++ ) + { + UINT8 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 ) +{ + const rgb_t *palette = m_palette->palette()->entry_list_raw(); + UINT32 *p = &bitmap.pix32(ra); + UINT8 fg, bg = BG_COLOR(m_video.color_select_68); + UINT16 odd, offset; + int i; + + if ( ra == 0 ) DBG_LOG(1,"poisk1_gfx_1bpp_update_row",("bg %d\n", bg)); + odd = ( ra & 1 ) << 13; + offset = ( ma & 0x1fff ) | odd; + for ( i = 0; i < stride; i++ ) + { + UINT8 data = videoram[ offset++ ]; + + 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 */ +PALETTE_INIT_MEMBER(p1_state, p1) +{ + int i; + + DBG_LOG(0,"init",("palette_init()\n")); + + for ( 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 ); + + DBG_LOG(0,"init",("video_start()\n")); + + memset(&m_video, 0, sizeof(m_video)); + m_video.videoram_base = std::make_unique<UINT8[]>(0x8000); + m_video.videoram = m_video.videoram_base.get(); + m_video.stride = 80; + + space.install_readwrite_bank(0xb8000, 0xbffff, "bank11" ); + machine().root_device().membank("bank11")->set_base(m_video.videoram); +} + +UINT32 p1_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) +{ + UINT16 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 WRITE_LINE_MEMBER( p1_state::p1_speaker_set_spkrdata ) @@ -177,7 +557,6 @@ DRIVER_INIT_MEMBER( p1_state, poisk1 ) DBG_LOG(0,"init",("driver_init()\n")); - program.unmap_readwrite(0, 0x7ffff); program.install_readwrite_bank(0, m_ram->size()-1, "bank10"); membank( "bank10" )->set_base( m_ram->pointer() ); } @@ -200,10 +579,7 @@ MACHINE_RESET_MEMBER( p1_state, poisk1 ) static ADDRESS_MAP_START( poisk1_map, AS_PROGRAM, 8, p1_state ) ADDRESS_MAP_UNMAP_HIGH - AM_RANGE(0x00000, 0x7ffff) AM_RAM - AM_RANGE(0xc0000, 0xc1fff) AM_ROM - AM_RANGE(0xc0000, 0xfbfff) AM_NOP - AM_RANGE(0xfc000, 0xfffff) AM_ROM + AM_RANGE(0xfc000, 0xfffff) AM_ROM AM_REGION("bios", 0xc000) ADDRESS_MAP_END static ADDRESS_MAP_START( poisk1_io, AS_IO, 8, p1_state ) @@ -238,7 +614,7 @@ static MACHINE_CONFIG_START( poisk1, p1_state ) MCFG_PIT8253_CLK2(XTAL_15MHz/12) /* pio port c pin 4, and speaker polling enough */ MCFG_PIT8253_OUT2_HANDLER(WRITELINE(p1_state, p1_pit8253_out2_changed)) - MCFG_PIC8259_ADD( "pic8259", INPUTLINE(":maincpu", 0), VCC, NULL ) + MCFG_PIC8259_ADD( "pic8259", INPUTLINE("maincpu", 0), VCC, NULL ) MCFG_DEVICE_ADD("ppi8255n1", I8255A, 0) MCFG_I8255_IN_PORTA_CB(READ8(p1_state, p1_ppi_porta_r)) /*60H*/ @@ -285,15 +661,15 @@ static MACHINE_CONFIG_START( poisk1, p1_state ) MACHINE_CONFIG_END ROM_START( poisk1 ) - ROM_REGION16_LE(0x100000,"maincpu", 0) + ROM_REGION16_LE(0x10000,"bios", 0) ROM_DEFAULT_BIOS("v91") ROM_SYSTEM_BIOS(0, "v89", "1989") - ROMX_LOAD( "biosp1s.rf4", 0xfe000, 0x2000, CRC(1a85f671) SHA1(f0e59b2c4d92164abca55a96a58071ce869ff988), ROM_BIOS(1)) + ROMX_LOAD( "biosp1s.rf4", 0xe000, 0x2000, CRC(1a85f671) SHA1(f0e59b2c4d92164abca55a96a58071ce869ff988), ROM_BIOS(1)) ROM_SYSTEM_BIOS(1, "v91", "1991") - ROMX_LOAD( "poisk_1991.bin", 0xfe000, 0x2000, CRC(d61c56fd) SHA1(de202e1f7422d585a1385a002a4fcf9d756236e5), ROM_BIOS(2)) + ROMX_LOAD( "poisk_1991.bin", 0xe000, 0x2000, CRC(d61c56fd) SHA1(de202e1f7422d585a1385a002a4fcf9d756236e5), ROM_BIOS(2)) ROM_SYSTEM_BIOS(2, "v91r2", "1991r2") - ROMX_LOAD( "p_bios_nm.bin", 0xfe000, 0x2000, CRC(84430b4f) SHA1(3e477962be3cea09662cb2e3ad9966ad01c7455d), ROM_BIOS(3)) + ROMX_LOAD( "p_bios_nm.bin", 0xe000, 0x2000, CRC(84430b4f) SHA1(3e477962be3cea09662cb2e3ad9966ad01c7455d), ROM_BIOS(3)) // 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 |