diff options
author | Bavarese <Bavarese@users.noreply.github.com> | 2018-12-05 17:22:52 +0100 |
---|---|---|
committer | R. Belmont <rb6502@users.noreply.github.com> | 2018-12-05 11:22:52 -0500 |
commit | 2d9895e7bdfe68df8ba9f0f37d254f6a550f3fb3 (patch) | |
tree | 5d6bfdc829c9469d3900bf31808eb13df63f6fc5 | |
parent | 29ff589d2197794f3cea3e4a5821e33150f07c5a (diff) |
[Rainbow-100]: correct palette problems and silence log output (#4373)
* Correct palette problems and silence log output
Monitor autodetection avoids false colors [on a real machine, this would require rewiring].
Corrected palette problems (non-working flag). Also, video levels from DEC's documentation turned out too dark. Converted printf to logerror.
* Old_palette removed
* More fixes that slipped through (NW)
* Update rainbow.cpp
* Update rainbow.cpp
-rw-r--r-- | src/mame/drivers/rainbow.cpp | 299 |
1 files changed, 154 insertions, 145 deletions
diff --git a/src/mame/drivers/rainbow.cpp b/src/mame/drivers/rainbow.cpp index 7dfcab165bb..85d5574e7ca 100644 --- a/src/mame/drivers/rainbow.cpp +++ b/src/mame/drivers/rainbow.cpp @@ -4,8 +4,8 @@ DEC Rainbow 100 Driver-in-progress by R. Belmont and Miodrag Milanovic. -Keyboard & GDC fixes by Cracyc (June - Nov. 2016), Baud rate generator by Shattered (July 2016) -Portions (2013 - 2016) by Karl-Ludwig Deisenhofer (Floppy, ClikClok RTC, NVRAM, DIPs, hard disk, Color Graphics). +Portions (2013 - 2018) by Karl-Ludwig Deisenhofer (Floppy, ClikClok RTC, NVRAM, DIPs, hard disk, Color Graphics). +Baud rate generator by AJR (2018) and Shattered (2016), keyboard & GDC fixes by Cracyc (June - Nov. 2016). To unlock floppy drives A-D compile with WORKAROUND_RAINBOW_B (prevents a side effect of ERROR 13). @@ -24,7 +24,7 @@ PLEASE USE THE RIGHT SLOT - AND ALWAYS SAVE YOUR DATA BEFORE MOUNTING FOREIGN DI You * should * also reassign SETUP (away from F3, where it sits on a LK201). DATA LOSS POSSIBLE: when in partial emulation mode, F3 performs a hard reset! -STATE AS OF JANUARY 2017 +STATE AS OF DECEMBER 2018 ------------------------ Driver is based entirely on the DEC-100 'B' variant (DEC-190 and DEC-100 A models are treated as clones). While this is OK for the compatible -190, it doesn't do justice to ancient '100 A' hardware. @@ -103,17 +103,15 @@ COLOR EMULATION (NEC 7220 + extra hardware) Palette takes 2 byte per palette entry. CLUT ("color map") is 32 byte long. ------------------------------------------------------------------------------------------------ -THE DEC 'R-M-B' COLOR CABLE VS. THE UNOFFICIAL 'R-G-B' MODE (A BIT OF HISTORY) - The standard DEC "color cable" connected the green gun of a VR241 to the mono output of the Rainbow - (DIP setting COLOR_MONITOR). - - An unofficial DIY cable enabled R-G-B graphics + seperate text (emulated by DIP setting DUAL MONITOR). - As DEC decided not to endorse R-G-B, many commercial programs show incorrect colors. - A patch from one of the archives corrects the GWBASIC palette problem when using 2 monitors [Bavarese]. +DEC 'R-M-B' COLOR CABLE VS. THE UNOFFICIAL 'R-G-B' MODE (a bit of history) + (1) the standard DEC "color cable" connected the green gun of a VR241 to the mono output of the Rainbow + (2) an unofficial DIY cable enabled R-G-B graphics + seperate text EMULATION SPECIFIC - DUAL MONITOR enables both screens, even if onboard graphics has been accidently shut off - (helps debugging semi broken programs, for example Doodle). + (1) COLOR_MONITOR reflects DEC's recommendation (R-M-B with VR241 above) + (2) DUAL MONITOR enables both screens, even if onboard graphics has been accidently shut off + (also helps debugging semi broken programs, for example Doodle). + (3) AUTODETECT (DIP setting) snoops the color palette and chooses the correct 'wiring' SCREEN 1 vs. SCREEN 2 IN EMULATION All GDC 7220 output is displayed on the right. Be it color or monochrome, Option Graphics output is on screen 2. @@ -145,16 +143,6 @@ UNKNOWN IMPLEMENTATION DETAILS: To obtain pixel exact graphics use 'Graphics Only' in Video Options and cmd.line switches -nowindow -aspect1 auto -nokeepaspect (Over-Under or Side-by-Side modes always distorted on my 1600 x 900 laptop) -Programs with initialization / redraw / reentrance problems (invocation order after reset matters in emulation): - -- Canon (high resolution + vectors), Solitaire (SOLIT.EXE) and GDEMO (from GRPHCS.ARC, interactive graphics interpreter '85), - plus 'Monitor Aligment' (from the GDC test disk). Sloppy programming or a bug related to a) to e)...? - - Quote from Haze: "if you have 2 screens running at different refresh rates one of them won't update properly - (the partial update system gets very confused because it expects both the screens to end at the same time - and if that isn't the case large parts of one screen end up not updating at all) - -The following games work well: Tetris, Pacman, MasterMind (MMIND), (G)otelo (needs GSX), Scram (uses scroll extensively). CURRENTY UNEMULATED ------------------- @@ -469,11 +457,6 @@ W17 pulls J1 serial port pin 1 to GND when set (chassis to logical GND). #define COMPLEMENT_MODE 16 #define OVERLAY_MODE 32 -// MONITOR CONFIGURATION (DIP SWITCH!): -#define MONO_MONITOR 0x01 -#define COLOR_MONITOR 0x02 -#define DUAL_MONITOR 0x03 - // ---------------------------------------------------------------------------------------------- #define LK201_TAG "lk201" #define FD1793_TAG "fd1793x" @@ -481,6 +464,12 @@ W17 pulls J1 serial port pin 1 to GND when set (chassis to logical GND). #define INVALID_DRIVE 255 #define MAX_FLOPPIES 4 +// Monitor configurations -> see DIP switches. New: auto-detect color palette (last option). +static constexpr int MONO_MONITOR = 0x01; // Tetris-M and Pacman-M need this setting (no auto-detection) +static constexpr int COLOR_MONITOR = 0x02; // DEC recommendation. GWBASIC and most old libraries. Superseded by later development +static constexpr int DUAL_MONITOR = 0x03; // Debugging, AutoCad, 'newer' freeware. Green is missing with unpatched software (for technical reasons) +static constexpr int AUTODETECT_MONITOR = 0x04; // Snoop palette, then choose best output. + class rainbow_state : public driver_device { public: @@ -718,11 +707,12 @@ private: uint8_t m_vpat, m_patmult, m_patcnt, m_patidx; uint16_t m_GDC_WRITE_MASK; - bool m_color_map_changed; - bool m_ONBOARD_GRAPHICS_SELECTED; // (internal switch, on board video to mono out) + bool m_ONBOARD_GRAPHICS_SELECTED; // (internal switch, on board video to mono out) bool m_SCREEN_BLANK; + uint8_t m_monitor_suggested; + int INT88, INTZ80; bool m_zflip; // Z80 alternate memory map with A15 inverted @@ -773,7 +763,6 @@ private: // FULL RANGE video levels for 100-B model, taken from page 46 of PDF const uint8_t video_levels[16] = { 255, 217, 201,186, 171, 156, 140, 125, 110, 97, 79, 66, 54, 31, 18, 0 }; - uint8_t m_PORT50; const int comm_rates[16] = { 50,75,110,134,150,200,300,600,1200,1800,2000,2400,3600,4800,9600,19200 }; }; @@ -795,10 +784,9 @@ if(m_patidx == 0) m_patidx = 7; // GDC RESET MACRO - used in "machine_reset" & GDC_EXTRA_REGISTER_w ! #define OPTION_GRFX_RESET \ lower_8088_irq(IRQ_GRF_INTR_L); \ -m_PORT50 = 0; \ +m_monitor_suggested = m_inp13->read(); \ m_GDC_INDIRECT_REGISTER = 0; \ m_GDC_color_map_index = 0; \ -m_color_map_changed = true; \ for(int i=0; i <256; i++) { m_GDC_SCROLL_BUFFER[i] = i; }; \ m_GDC_scroll_index = 0; \ m_GDC_write_buffer_index = 0; \ @@ -807,7 +795,7 @@ m_GDC_ALU_PS_REGISTER = 0x0F; \ m_GDC_FG_BG = 0xF0; \ m_GDC_MODE_REGISTER &= GDC_MODE_VECTOR | GDC_MODE_HIGHRES | GDC_MODE_ENABLE_WRITES | GDC_MODE_READONLY_SCROLL_MAP;\ m_GDC_MODE_REGISTER |= GDC_MODE_ENABLE_VIDEO; \ -printf("\n** OPTION GRFX. RESET **\n"); +logerror("\n** OPTION GRFX. RESET **\n"); UPD7220_DISPLAY_PIXELS_MEMBER( rainbow_state::hgdc_display_pixels ) { @@ -817,7 +805,7 @@ UPD7220_DISPLAY_PIXELS_MEMBER( rainbow_state::hgdc_display_pixels ) uint16_t plane0, plane1, plane2, plane3; uint8_t pen; - if(m_ONBOARD_GRAPHICS_SELECTED && (m_inp13->read() != DUAL_MONITOR) ) + if(m_ONBOARD_GRAPHICS_SELECTED && (m_inp13->read() != DUAL_MONITOR) ) { for(xi=0;xi<16;xi++) // blank screen when VT102 output active (..) { @@ -846,7 +834,7 @@ UPD7220_DISPLAY_PIXELS_MEMBER( rainbow_state::hgdc_display_pixels ) plane3 = m_video_ram[((address & 0x3fff) + 0x30000) >> 1]; } - bool mono = (m_inp13->read() == MONO_MONITOR) ? true : false; // 1 = MONO, 2 = COLOR, 3 = DUAL MONITOR + bool mono = (m_monitor_suggested == MONO_MONITOR) ? true : false; // 1 = MONO, 2 = COLOR, 3 = DUAL MONITOR; 4 = AUTO for(xi=0;xi<16;xi++) { @@ -986,9 +974,8 @@ void rainbow_state::rainbow8088_io(address_map &map) // * Color graphics option (NEC upd7220 GDC plus external hw.). See Programmer's Reference AA-AE36A-TV. // Either 384 x 240 x 16 or 800 x 240 x 4 colors (out of 4096). 8 x 64 K video RAM. // (Write Buffer, Pattern Register/Multiplier, ALU/PS, Color Map, readback and offset/scroll hardware): - map(0x50, 0x55).rw(FUNC(rainbow_state::GDC_EXTRA_REGISTER_r), FUNC(rainbow_state::GDC_EXTRA_REGISTER_w)); - map(0x56, 0x57).rw(m_hgdc, FUNC(upd7220_device::read), FUNC(upd7220_device::write)); // 56 param, 57 command - + map(0x50, 0x57).rw(FUNC(rainbow_state::GDC_EXTRA_REGISTER_r), FUNC(rainbow_state::GDC_EXTRA_REGISTER_w)); + // =========================================================== // 0x60 -> 0x6f ***** EXTENDED COMM. OPTION / Option Select 2. // =========================================================== @@ -1140,7 +1127,8 @@ static INPUT_PORTS_START(rainbow100b_in) PORT_DIPSETTING(0x01, DEF_STR(On)) PORT_START("MONITOR CONFIGURATION") // GDC - PORT_DIPNAME(0x03, 0x03, "MONITOR CONFIGURATION") + PORT_DIPNAME(0x0F, 0x04, "MONITOR CONFIGURATION") + PORT_DIPSETTING(0x04, "AUTODETECT") PORT_DIPSETTING(0x01, "MONO ONLY / 4 to 16 monochrome shades (single VR-201)") PORT_DIPSETTING(0x02, "COLOR ONLY (single VR-241 with BCC-17 cable)") PORT_DIPSETTING(0x03, "DUAL MONITOR (SCREEN 1: TEXT; SCREEN 2: R-G-B)") @@ -1201,7 +1189,7 @@ void rainbow_state::machine_reset() if(END_OF_RAM > unmap_start) { - printf("\nUnmapping from %x to %x",unmap_start, END_OF_RAM); + logerror("\nUnmapping from %x to %x",unmap_start, END_OF_RAM); program.unmap_readwrite(unmap_start, END_OF_RAM); } @@ -1258,12 +1246,10 @@ void rainbow_state::machine_reset() // *********** NEC 7220 DISPLAY CONTROLLER [ OPTIONAL ] OPTION_GRFX_RESET - OPTION_RESET_PATTERNS for(int i=0; i <32; i++) { m_GDC_COLOR_MAP[i] = 0x00; }; m_GDC_color_map_index = 0; - m_color_map_changed = true; // *********** Z80 m_z80->set_input_line(INPUT_LINE_HALT, ASSERT_LINE); @@ -1344,13 +1330,20 @@ void rainbow_state::device_timer(emu_timer &timer, device_timer_id tid, int para uint32_t rainbow_state::screen_update_rainbow(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { - static int old_palette, old_monitor; + static int old_monitor; - int monitor_selected = m_inp13->read(); - if(monitor_selected != old_monitor) + if((m_monitor_suggested < 1) || (m_monitor_suggested > 3)) + m_monitor_suggested = COLOR_MONITOR; + + if(m_monitor_suggested != old_monitor) { - old_monitor = monitor_selected; - m_color_map_changed = true; + old_monitor = m_monitor_suggested; + if(m_monitor_suggested == 1) + popmessage("MONOCHROME MONITOR"); + if(m_monitor_suggested == 2) + popmessage("COLOR MONITOR"); + if(m_monitor_suggested == 3) + popmessage("DUAL MONITOR"); } int palette_selected; @@ -1359,16 +1352,11 @@ uint32_t rainbow_state::screen_update_rainbow(screen_device &screen, bitmap_ind1 else palette_selected = m_inp9->read(); - if(palette_selected != old_palette) - { - old_palette = palette_selected; - m_color_map_changed = true; - } - m_crtc->palette_select(palette_selected); + m_crtc->video_update(bitmap, cliprect); if( m_SCREEN_BLANK || - ( (!m_ONBOARD_GRAPHICS_SELECTED) && (monitor_selected != DUAL_MONITOR) ) // blank screen 1, except when in DUAL_MONITOR mode + ( (!m_ONBOARD_GRAPHICS_SELECTED) && (m_inp13->read() != DUAL_MONITOR) ) // dual monitor: never blank all ) m_crtc->video_blanking(bitmap, cliprect); else @@ -2370,7 +2358,7 @@ READ8_MEMBER(rainbow_state::z80_generalstat_r) if ( fdc_ready && ((fdc_status & 0x40) == 0) && m_POWER_GOOD ) fdc_write_gate = 1; // "valid only when drive is selected" ! } - + //logerror(" RDY:%x WG:%d ",fdc_ready,fdc_write_gate); int data = ( ((fdc_step) ? 0x00 : 0x80) | ((fdc_write_gate) ? 0x00 : 0x40) | @@ -2572,17 +2560,16 @@ WRITE_LINE_MEMBER(rainbow_state::GDC_vblank_irq) else lower_8088_irq(IRQ_GRF_INTR_L); - uint8_t red, green, blue, mono; - int xi; + uint8_t xi, red, green, blue, mono; - if(m_color_map_changed) - { - m_color_map_changed = false; + m_monitor_suggested = m_inp13->read(); + if((m_monitor_suggested < 1) || (m_monitor_suggested > 3)) + m_monitor_suggested = COLOR_MONITOR; - int mono_sum = 0; - int green_sum = 0; - for(xi=0;xi<16;xi++) // DELAYED LOAD OF PALETTE ... - { + int mono_sum = 0; + int green_sum = 0; + for(xi=0;xi<16;xi++) // DELAYED LOAD OF PALETTE ... + { uint8_t colordata1 = m_GDC_COLOR_MAP[xi]; uint8_t colordata2 = m_GDC_COLOR_MAP[xi + 16]; // Does it matter if the palette is incomplete...? @@ -2602,62 +2589,62 @@ WRITE_LINE_MEMBER(rainbow_state::GDC_vblank_irq) green =(colordata1 & 0x0F); green_sum += green; - switch( m_inp13->read()) + switch( m_monitor_suggested ) { case MONO_MONITOR: { - switch( m_inp9->read() ) // - monochrome monitor (phosphor) type (1,2,3) + switch( m_inp9->read() ) // - monochrome monitor (phosphor) type (1,2,3) { case 1: // BLACK & WHITE - mono = uint8_t( ( 205.0f / 80.0f) * ( video_levels[ mono ] / 3.19f) ); - m_palette2->set_pen_color(xi + 16, rgb_t( mono, mono, mono) ); + m_palette2->set_pen_color(xi + 16, pal4bit(mono), pal4bit(mono), pal4bit(mono) ); break; - case 2: // SHADES OF GREEN - red = uint8_t( ( 35.0f / 80.0f) * ( video_levels[ mono ] / 3.19f) ); // 80 % = NORMAL * - green = uint8_t( (145.0f / 80.0f) * ( video_levels[ mono ] / 3.19f) ); - blue = uint8_t( ( 75.0f / 80.0f) * ( video_levels[ mono ] / 3.19f) ); - m_palette2->set_pen_color(xi + 16, rgb_t( red, green, blue) ); + case 2: // GREEN SHADES. Hand picked value from vtvideo coarsly transformed into a RGB value: + red = uint8_t( ( 35.0f / 100.0f) * ( video_levels[ mono ] / 2.55f) ); + green = uint8_t( (145.0f / 100.0f) * ( video_levels[ mono ] / 2.55f) ); + blue = uint8_t( ( 75.0f / 100.0f) * ( video_levels[ mono ] / 2.55f) ); + m_palette2->set_pen_color(xi + 16, rgb_t( red, green, blue) ); break; case 3: // AMBER. Assumption: "normal" value at 80 % is 213, 146, 82 (decimal) - red = uint8_t( (213.0f / 80.0f) * ( video_levels[ mono ] / 3.19f) ); // 80 % = NORMAL * is 3.19f (100 % would be 2.55f) - green = uint8_t( (146.0f / 80.0f) * ( video_levels[ mono ] / 3.19f) ); - blue = uint8_t( ( 82.0f / 80.0f) * ( video_levels[ mono ] / 3.19f) ); - m_palette2->set_pen_color(xi + 16, rgb_t( red, green, blue) ); + red = uint8_t( (213.0f / 100.0f) * ( video_levels[ mono ] / 2.55f) ); + green = uint8_t( (146.0f / 100.0f) * ( video_levels[ mono ] / 2.55f) ); + blue = uint8_t( ( 82.0f / 100.0f) * ( video_levels[ mono ] / 2.55f) ); + m_palette2->set_pen_color(xi + 16, rgb_t( red, green, blue) ); break; } break; } case COLOR_MONITOR: - if(!(m_GDC_MODE_REGISTER & GDC_MODE_ENABLE_VIDEO)) - red = blue = 0; // Page 21 of PDF AA-AE36A (PDF) explains why - red = uint8_t( red * 17 * ( (255-video_levels[ red ] ) / 255.0f) ); - green = uint8_t( mono * 17 * ( (255-video_levels[ mono ]) / 255.0f) ); // BCC-17 cable (red, mono -> green, blue) - blue = uint8_t( blue * 17 * ( (255-video_levels[ blue ] ) / 255.0f) ); - m_palette2->set_pen_color(xi, rgb_t( red, green, blue) ); + red = blue = 0; // Page 21 of AA-AE36A (PDF) explains why + + m_palette2->set_pen_color(xi, pal4bit( red ) , pal4bit( mono ) , pal4bit( blue ) ); break; case DUAL_MONITOR: - red = uint8_t( red * 17 * ( (255-video_levels[ red ] ) / 255.0f) ); - green = uint8_t( green * 17 * ( (255-video_levels[ green ]) / 255.0f) ); // true R-G-B (homebrew cable only) - blue = uint8_t( blue * 17 * ( (255-video_levels[ blue ] ) / 255.0f) ); - m_palette2->set_pen_color(xi, rgb_t( red, green, blue) ); + m_palette2->set_pen_color(xi, pal4bit( red ), pal4bit( green ), pal4bit( blue ) ); break; } - } // palette (loop) + } // palette (loop) - if(mono_sum == 0) - if ( m_inp13->read() == COLOR_MONITOR) - printf(" [HINT: COLOR MONITOR (DIP SWITCH) WRONG! NO MONO PALETTE] "); + if( (green_sum >0) && (green_sum == mono_sum) ) // (R-G-B + M) palette (split cable). Examples: PACMAN, AutoCad + { + if(m_monitor_suggested == MONO_MONITOR) + logerror("\n[HINT: COLOR PALETTE DETECTED - SUITABLE FOR DUAL MONITOR] "); + if(m_inp13->read() == AUTODETECT_MONITOR) + m_monitor_suggested = DUAL_MONITOR; + } - if(green_sum == 0) - if ( m_inp13->read() == DUAL_MONITOR) - printf(" [HINT: DUAL MONITOR (DIP SWITCH) WRONG! NO GREEN PALETTE] "); - } // color map changed? + if((green_sum == 0) && (mono_sum > 0)) // No green = original DEC spec. Example: NLANDER. All older libaries use R-M-B. + { + if(m_inp13->read() == AUTODETECT_MONITOR) + m_monitor_suggested = COLOR_MONITOR; + if (m_monitor_suggested == DUAL_MONITOR) + logerror("\n[HINT: SINGLE COLOR MONITOR ONLY! GREEN MISSING => NO SPLIT CABLE]"); + } } // 7220 vblank IRQ @@ -2694,7 +2681,7 @@ READ8_MEMBER(rainbow_state::diagnostic_r) // 8088 (port 0A READ). Fig.4-29 + tab WRITE8_MEMBER(rainbow_state::diagnostic_w) // 8088 (port 0A WRITTEN). Fig.4-28 + table 4-15 { - // printf("%02x to diag port (PC=%x)\n", data, m_i8088->pc()); + // logerror("%02x to diag port (PC=%x)\n", data, m_i8088->pc()); // ZRESET from 8088 to Z80 - - HIGH at powerup! if (!(data & 1)) @@ -2738,12 +2725,12 @@ WRITE8_MEMBER(rainbow_state::diagnostic_w) // 8088 (port 0A WRITTEN). Fig.4-28 + { printf("\nALARM: GRAPHICS OPTION * SWITCHED OFF * VIA DIP. TEXT OUTPUT STILL ENABLED!\n"); m_ONBOARD_GRAPHICS_SELECTED = true; } - printf("DATA: %x (PC=%x)\n", data, m_i8088->pc()); + logerror("DATA: %x (PC=%x)\n", data, m_i8088->pc()); } // BIT 3: PARITY (1 enables parity test on memory board. Usually 64K per bank). -> ext_ram_w. if(data & 0x08) - printf("\n*** PARITY TEST [on RAM EXTENSION] - (bit 3 - diagnostic_w) "); + logerror("\n*** PARITY TEST [on RAM EXTENSION] - (bit 3 - diagnostic_w) "); // MISSING BITS (* not vital for normal operation, see diag.disk) - // * BIT 4: DIAG LOOPBACK (0 at power-up; 1 directs RX50 and DC12 output to printer port) @@ -2769,7 +2756,7 @@ WRITE8_MEMBER(rainbow_state::diagnostic_w) // 8088 (port 0A WRITTEN). Fig.4-28 + */ if (data & 16) { - printf("\nWARNING: UNEMULATED DIAG LOOPBACK (directs RX50 and DC12 output to printer port) **** "); + logerror("\nWARNING: UNEMULATED DIAG LOOPBACK (directs RX50 and DC12 output to printer port) **** "); } address_space &io = m_i8088->space(AS_IO); @@ -2782,7 +2769,7 @@ WRITE8_MEMBER(rainbow_state::diagnostic_w) // 8088 (port 0A WRITTEN). Fig.4-28 + PRT RCV DATA.......KBD TXD...........PRT RDATA KBD RCV DATA.......PRT TXD...........KBD RXD */ - printf("\nWARNING: UNEMULATED PORT LOOPBACK (COMM, PRINTER, KEYBOARD ports) **** "); + logerror("\nWARNING: UNEMULATED PORT LOOPBACK (COMM, PRINTER, KEYBOARD ports) **** "); io.unmap_readwrite(0x40, 0x43); // unmap MPSC handlers to prevent CPU crashes ("INTERRUPTS OFF") } @@ -2791,7 +2778,7 @@ WRITE8_MEMBER(rainbow_state::diagnostic_w) // 8088 (port 0A WRITTEN). Fig.4-28 + if ( !(data & 32) && (m_diagnostic & 32) ) { io.install_readwrite_handler(0x40, 0x43, READ8_DEVICE_DELEGATE(m_mpsc, upd7201_new_device,cd_ba_r), WRITE8_DEVICE_DELEGATE(m_mpsc, upd7201_new_device, cd_ba_w) ); - printf("\n **** COMM HANDLER INSTALLED **** "); + logerror("\n **** COMM HANDLER INSTALLED **** "); //popmessage("Autoboot from drive %c", m_p_nvram[0xab] ? (64 + m_p_nvram[0xab]) : 0x3F ); } @@ -2870,11 +2857,11 @@ READ16_MEMBER(rainbow_state::vram_r) int readback_plane = 0; if( !(m_GDC_MODE_REGISTER & GDC_MODE_ENABLE_WRITES) ) // 0x10 // READBACK OPERATION - if ENABLE_WRITES NOT SET - readback_plane = (m_GDC_MODE_REGISTER & GDC_MODE_READBACK_PLANE_MASK) >> 2; // READBACK PLANE 00..02, mask in bits 2+3 + readback_plane = (m_GDC_MODE_REGISTER & GDC_MODE_READBACK_PLANE_MASK) >> 2; // READBACK PLANE 00..02, mask in bits 2+3 return m_video_ram[ (offset & 0x7fff) + (0x8000 * readback_plane)]; } - return 0xffff; + return 0xffff; } // NOTE: Rainbow has separate registers for fore and background. @@ -2891,7 +2878,7 @@ WRITE16_MEMBER(rainbow_state::vram_w) if(m_GDC_MODE_REGISTER & GDC_MODE_VECTOR) // VT240 : if(SELECT_VECTOR_PATTERN_REGISTER) { chr = bitswap<8>(m_vpat, m_patidx, m_patidx, m_patidx, m_patidx, m_patidx, m_patidx, m_patidx, m_patidx); - chr |= (chr << 8); + chr |= (chr << 8); if(m_patcnt-- == 0) { m_patcnt = m_patmult; @@ -2918,15 +2905,15 @@ WRITE16_MEMBER(rainbow_state::vram_w) for(int i = 0; i <= 3; i++) { - if( BIT(ps,i ) ) + if( BIT(ps,i ) ) // 1 means don't touch (bits already inverted) { - uint16_t mem = m_video_ram[(offset & 0xffff) + (0x8000 * i)]; // VT240 + uint16_t mem = m_video_ram[(offset & 0xffff) + (0x8000 * i)]; uint16_t out = 0; // VT240 : uint8_t for(int j = 0; j <= 15; j++) // REPLACE MODE : one replaced by FG, zero by BG ( 16 instead of 8 bit on VT240 ) out |= BIT(chr, j) ? ((fore & 1) << j) : ((back & 1) << j); - switch (m_GDC_ALU_PS_REGISTER & ALU_PS_MODE_MASK) + switch ((m_GDC_ALU_PS_REGISTER) & ALU_PS_MODE_MASK) { case OVERLAY_MODE: // (OR) out |= mem; @@ -2941,9 +2928,9 @@ WRITE16_MEMBER(rainbow_state::vram_w) } if(!(m_GDC_MODE_REGISTER & GDC_MODE_VECTOR)) // 0 : Text Mode and Write Mask Batch - out = (out & ~m_GDC_WRITE_MASK) | (mem & m_GDC_WRITE_MASK); // // M_MASK (1st use) + out = (out & ~m_GDC_WRITE_MASK) | (mem & m_GDC_WRITE_MASK); else - out = (out & ~data) | (mem & data); // vector mode + out = (out & ~data) | (mem & data); if(m_GDC_MODE_REGISTER & GDC_MODE_ENABLE_WRITES) // 0x10 m_video_ram[(offset & 0xffff) + (0x8000 * i)] = out; @@ -2954,37 +2941,45 @@ WRITE16_MEMBER(rainbow_state::vram_w) } // plane select (LOOP) return; - } + } // if enable_writes } // (READ) // Read scroll buffer (see GDC Diagnostic Disk, SCROLL BUFFER test) READ8_MEMBER(rainbow_state::GDC_EXTRA_REGISTER_r) { - uint8_t out = 0; + uint8_t data = 0; switch(offset) { case 0: - out = m_PORT50; + data = m_GDC_MODE_REGISTER; // ? break; case 1: if(m_GDC_INDIRECT_REGISTER & GDC_SELECT_SCROLL_MAP ) // 0x80 { // Documentation says it is always incremented (read and write): - out = m_GDC_SCROLL_BUFFER[m_GDC_scroll_index++]; // // * READ * SCROLL_MAP ( 256 x 8 ) + data = m_GDC_SCROLL_BUFFER[m_GDC_scroll_index++]; // // * READ * SCROLL_MAP ( 256 x 8 ) m_GDC_scroll_index &= 0xFF; // 0...255 (CPU accesses 256 bytes) break; } else - printf("\n * UNEXPECTED CASE: READ REGISTER 50..55 with INDIRECT_REGISTER $%02x and OFFSET $%02x *", m_GDC_INDIRECT_REGISTER, offset); + logerror("\n * UNEXPECTED CASE: READ REGISTER 50..55 with INDIRECT_REGISTER $%02x and OFFSET $%02x *", m_GDC_INDIRECT_REGISTER, offset); + break; + + case 6: + data = m_hgdc->read(space, offset & 0x00); + break; + + case 7: + data = m_hgdc->read(space, offset & 0x01); break; default: - printf("\n * UNHANDLED CASE: READ REGISTER 50..55 with INDIRECT_REGISTER $%02x and OFFSET $%02x *", m_GDC_INDIRECT_REGISTER, offset); + logerror("\n * UNHANDLED CASE: READ REGISTER 50..55 with INDIRECT_REGISTER $%02x and OFFSET $%02x *", m_GDC_INDIRECT_REGISTER, offset); break; } // switch - return out; + return data; } WRITE8_MEMBER(rainbow_state::GDC_EXTRA_REGISTER_w) @@ -2997,7 +2992,7 @@ WRITE8_MEMBER(rainbow_state::GDC_EXTRA_REGISTER_w) if(last_message != 1) { popmessage("\nCOLOR GRAPHICS ADAPTER INVOKED. PLEASE TURN ON THE APPROPRIATE DIP SWITCH, THEN REBOOT.\n"); - printf("OFFSET: %x (PC=%x)\n", 0x50 +offset , m_i8088->pc()); + logerror("OFFSET: %x (PC=%x)\n", 0x50 +offset , m_i8088->pc()); last_message = 1; } return; @@ -3017,7 +3012,7 @@ WRITE8_MEMBER(rainbow_state::GDC_EXTRA_REGISTER_w) } break; - case 1: // 51h - DATA loaded into register previously written to 53h. + case 1: // 51h = DATA loaded into (a register previously addressed by a write to 53h) if(m_GDC_INDIRECT_REGISTER & GDC_SELECT_WRITE_BUFFER) // 0x01 { m_GDC_write_buffer_index = 0; // (writing to 51h CLEARS the index counter) @@ -3030,7 +3025,6 @@ WRITE8_MEMBER(rainbow_state::GDC_EXTRA_REGISTER_w) if(m_GDC_color_map_index == 32) { m_GDC_color_map_index = 0; // 0...31 (CPU accesses 32 bytes - m_color_map_changed = true; printf("\n * COLOR MAP FULLY LOADED *"); for(int zi =0; zi <16; zi++) @@ -3063,81 +3057,88 @@ WRITE8_MEMBER(rainbow_state::GDC_EXTRA_REGISTER_w) // -----------------PATTERN + MULTIPLIER USED IN VECTOR MODE ONLY! // SEE PAGE 37 OF AA-AE36A (PDF). - if(m_GDC_INDIRECT_REGISTER & GDC_SELECT_PATTERN_MULTIPLIER) + if(m_GDC_INDIRECT_REGISTER & GDC_SELECT_PATTERN_MULTIPLIER) // 0x02 { // On a Rainbow, 12 indicates a multiplier of 16-12 = 4 (example) m_patmult = 16 - (data & 15); // 4 bit register // VT240: "patmult_w" break; } - if(m_GDC_INDIRECT_REGISTER & GDC_SELECT_PATTERN) + if(m_GDC_INDIRECT_REGISTER & GDC_SELECT_PATTERN) // 0x04 { // NOTE : Pattern Multiplier MUST BE LOADED before (!) m_vpat = data; break; } - if(m_GDC_INDIRECT_REGISTER & GDC_SELECT_FG_BG) // 2 x 4 + if(m_GDC_INDIRECT_REGISTER & GDC_SELECT_FG_BG) // 0x08 { m_GDC_FG_BG = data; // Neither bitswap nor negated (and also not both)... - break; // Next: prepare FG / BG and PLANE in ALU - PLANE_SELECT register. + break; // Next: prepare FG / BG (4 bits each) + plane in ALU - PLANE_SELECT register. } - if(m_GDC_INDIRECT_REGISTER & GDC_SELECT_ALU_PS) + if(m_GDC_INDIRECT_REGISTER & GDC_SELECT_ALU_PS) // 0x10 { m_GDC_ALU_PS_REGISTER = ~data; // Negated... break; } - if(m_GDC_INDIRECT_REGISTER & GDC_SELECT_MODE_REGISTER) + if(m_GDC_INDIRECT_REGISTER & GDC_SELECT_MODE_REGISTER) // 0x40 { m_GDC_MODE_REGISTER = data; // Neither bitswap nor negated (and also not both)... - if(last_message != 2) + if(data & GDC_MODE_HIGHRES) // 0x01 + { + if(last_message != 2) + { + last_message = 2; + printf(" * HIGH RESOLUTION * "); + } + } + else { - last_message = 2; - - if(data & GDC_MODE_HIGHRES) - printf(" * HIGH RESOLUTION * "); - else - printf(" MEDIUM RESOLUTION "); + if(last_message != 3) + { + last_message = 3; + printf(" MEDIUM RESOLUTION "); + } } - if(last_mode != (data & GDC_MODE_VECTOR)) + if(last_mode != (data & GDC_MODE_VECTOR)) // 0x02 { last_mode = data & GDC_MODE_VECTOR; if(data & GDC_MODE_VECTOR) - printf(" VECTOR MODE "); + logerror(" VECTOR MODE "); else - printf(" WORD MODE "); + logerror(" WORD MODE "); } - if(last_readback != (data & GDC_MODE_ENABLE_WRITES)) + if(last_readback != (data & GDC_MODE_ENABLE_WRITES)) // 0x10 { last_readback = data & GDC_MODE_ENABLE_WRITES; if(data & GDC_MODE_ENABLE_WRITES) // 0x10 - printf(" READBACK: OFF - ENABLE_WRITES "); + logerror(" READBACK: OFF - ENABLE_WRITES "); else // READBACK PLANE 00..02 - mask in bits 2+3: - printf(" READBACK MODE; plane = %02x ", m_GDC_MODE_REGISTER & GDC_MODE_READBACK_PLANE_MASK); // unsure if PLANE is set... already?! + logerror(" READBACK MODE; plane = %02x ", m_GDC_MODE_REGISTER & GDC_MODE_READBACK_PLANE_MASK); // unsure if PLANE is set... already?! } if(last_scroll_index != m_GDC_scroll_index) { last_scroll_index = m_GDC_scroll_index; if(data & GDC_MODE_READONLY_SCROLL_MAP) // 0x20 - { //printf(" SCROLL MAP READ_ONLY. Index : %02x ", m_GDC_scroll_index); - } else - { printf(" SCROLL MAP IS WRITABLE. Index : %02x ", m_GDC_scroll_index); - } + logerror(" SCROLL MAP READ_ONLY. Index : %02x ", m_GDC_scroll_index); + else + logerror(" SCROLL MAP IS WRITABLE. Index : %02x ", m_GDC_scroll_index); } if(!(data & GDC_MODE_ENABLE_VSYNC_IRQ)) // 0x40 lower_8088_irq(IRQ_GRF_INTR_L); // also clears the interrupt + // case 0x80 : If this bit is a 1 red and blue outputs are enabled. If this bit is a 0 red and blue outputs are disabled (page 20 of AA-AE36A) break; } // GDC_SELECT_MODE_REGISTER - printf("\n* UNIMPLEMENTED CASE. MODE = %02x / m_GDC_INDIRECT_REGISTER = %02x\n",m_GDC_MODE_REGISTER, m_GDC_INDIRECT_REGISTER); + logerror("\n* UNIMPLEMENTED CASE. MODE = %02x / m_GDC_INDIRECT_REGISTER = %02x\n",m_GDC_MODE_REGISTER, m_GDC_INDIRECT_REGISTER); break; case 2: @@ -3161,12 +3162,15 @@ WRITE8_MEMBER(rainbow_state::GDC_EXTRA_REGISTER_w) m_GDC_color_map_index = 0; // (also clears the index counter) // NEXT: 32 BYTE COLOR MAP, LOADED TO $51 + //if(m_GDC_INDIRECT_REGISTER & GDC_SELECT_MODE_REGISTER) // 0x40 + // logerror(" *** SELECT MODE REGISTER"); + if(m_GDC_INDIRECT_REGISTER & GDC_SELECT_SCROLL_MAP ) // 0x80 { if(last_scroll_index != m_GDC_scroll_index) { last_scroll_index = m_GDC_scroll_index; - printf(" *** SCROLL INDEX COUNTER RESET, old value = %d", m_GDC_scroll_index); + logerror(" *** SCROLL INDEX COUNTER RESET, old value = %d", m_GDC_scroll_index); } m_GDC_scroll_index = 0; // (also clears the index counter) } // NEXT: LOAD 256 BYTE SCROLL MAP INTO $51 @@ -3181,6 +3185,11 @@ WRITE8_MEMBER(rainbow_state::GDC_EXTRA_REGISTER_w) case 5: // 55h Write Mask HIGH m_GDC_WRITE_MASK = ( m_GDC_WRITE_MASK & 0xFF00 ) | bitswap<8>(data, 0, 1, 2, 3, 4, 5, 6, 7); break; + + case 6: + case 7: + m_hgdc->write(space, offset & 0x01, data); + break; } // switch } @@ -3336,7 +3345,7 @@ MACHINE_CONFIG_START(rainbow_state::rainbow) m_kbd8251->dtr_handler().set(FUNC(rainbow_state::irq_hi_w)); m_kbd8251->rxrdy_handler().set(FUNC(rainbow_state::kbd_rxready_w)); m_kbd8251->txrdy_handler().set(FUNC(rainbow_state::kbd_txready_w)); - + LK201(config, m_lk201, 0); m_lk201->tx_handler().set(m_kbd8251, FUNC(i8251_device::write_rxd)); |