diff options
author | 2018-12-29 03:41:56 +0100 | |
---|---|---|
committer | 2018-12-28 21:41:56 -0500 | |
commit | 03b79c8dc53cca708f578d810176cb479900443b (patch) | |
tree | 8728a31d6ff24e9ae83492e16ba0016308fa3400 /src/mame | |
parent | b607dadaeccc68deb8a4664e8139c6cf08cbeac1 (diff) |
[Rainbow-100]: document driver state (and remove bloat) (#4410)
* [Rainbow-100]: document driver state (and remove bloat)
Venix 86-R (plus Boston Softworks Extensions) working (tested yesterday), just follow https://github.com/bsdimp/venix/blob/master/doc/MESS-RB-INSTALL.md
Noted regressions in the PC subsystem (3.5 " DS DD images and 5.25 SSDD at slot 3 +4 ) after (?) April 2018. Can't fix these myself, though (effect: file content broken while directory listing seems OK; seek errors and 'write fault error reading from X' when copying).
UCSD Forth and Pascal expects 4 identical QD drives, so definitions for PC-style drives in slot 3 and 4 were commented out.
* [Rainbow-100]: fix regression introduced 2018-12-05
Incorrect polarity in routine: WRITE8_MEMBER(rainbow_state::diagnostic_w)
[before]- m_SCREEN_BLANK = (data & 2) ? false : true;
[0.2.05]+ m_screen_blank = BIT(data, 1);
[now]: m_screen_blank = BIT(data, 1) ? false : true;
See
https://git.redump.net/mame/commit/?id=ccd87f82eccea439f54cea6b765178d1dea409c9
Diffstat (limited to 'src/mame')
-rw-r--r-- | src/mame/drivers/rainbow.cpp | 60 |
1 files changed, 26 insertions, 34 deletions
diff --git a/src/mame/drivers/rainbow.cpp b/src/mame/drivers/rainbow.cpp index 90b293771fc..440f474545b 100644 --- a/src/mame/drivers/rainbow.cpp +++ b/src/mame/drivers/rainbow.cpp @@ -10,30 +10,27 @@ Baud rate generator by AJR (2018) and Shattered (2016), keyboard & GDC fixes by To unlock floppy drives A-D compile with WORKAROUND_RAINBOW_B (prevents a side effect of ERROR 13). Native single sided 5.25" images with 80 tracks, 10 sectors are well tested (*.IMD / *.TD0=TeleDisk / *.IMG with 400 K). -IMG files of DOS 180K, 360 K and VT180 disks are essentially untested (note that VT disks must be mounted "read only"). +VT180 images (184.320 Bytes) are very unreliable in CP/M - though a real machine can read them. +5.25 MFM PC style drives and 720 K (3.5 " DS-DD MFM PC formatted disks) (on slots 3 + 4) show regressions / bugs + as of Dec.2018 (file content bad while dir is OK, seek errors, write fault errors when copying _to_ hard disk). -To read a 40 track, PC-DOS formatted 5.25" image (*.TD0 preferred) mounted on drive slot 3 add: -DEVICE=A:\idrive5.sys - -To access a 80 track, PC-DOS formatted 3.5" image (720K, IMG preferred) mounted on drive slot 4 add: -DEVICE=A:\impdrv3.sys D: -NOTE: content will be accessible via letter E: or F: (NOT D:). No luck with Impdrv5, Impdrv5F, Impdrv5T... - -PLEASE USE THE RIGHT SLOT - AND ALWAYS SAVE YOUR DATA BEFORE MOUNTING FOREIGN DISK FORMATS! +ALWAYS USE THE RIGHT SLOT AND SAVE YOUR DATA BEFORE MOUNTING FOREIGN DISK FORMATS! 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 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. The public domain file RBCONVERT.ZIP documents how model 'A' differs from version B. - -There is some evidence that the The Design Maturity Test was designed for the Rainbow-100-A. NVRAM files from -A and -B machines are not interchangeable. If problems arise, delete the NVRAM file. -CPM 2.1 / DOS2.11 / DOS 3.x and UCSD systems (fort_sys, pas_sys) + diag disks boot. +Venix 86-R (BSW) is working, just follow https://github.com/bsdimp/venix/blob/master/doc/MESS-RB-INSTALL.md + +CPM 2.1 / DOS2.11 / DOS 3.x / diag disks boot. UCSD systems (fort_sys, pas_sys) boot, but expect 4 QD drives + loaded with disks (reassign slots, reset and mount three empty 400 K images before startup at #2, #3, #4). + It is possible to boot DOS 3.10 from floppy A: and later use a hard disk attached to E:. NB.: a single hard disk (5 - 67 MB, 512 byte sectors) may be attached before startup. It should remain there @@ -360,7 +357,6 @@ W17 pulls J1 serial port pin 1 to GND when set (chassis to logical GND). #include "rainbow.lh" // BEZEL - LAYOUT with LEDs for diag 1-7, keyboard 8-11 and floppy 20-23 - #define RD51_MAX_HEAD 8 #define RD51_MAX_CYLINDER 1024 #define RD51_SECTORS_PER_TRACK 17 @@ -713,7 +709,7 @@ private: uint16_t m_gdc_write_mask; - bool m_onboard_graphics_selected; // (internal switch, on board video to mono out) + bool m_onboard_video_selected; // (internal switch, on board video to mono out) bool m_screen_blank; uint8_t m_monitor_suggested; @@ -806,12 +802,15 @@ private: UPD7220_DISPLAY_PIXELS_MEMBER( rainbow_state::hgdc_display_pixels ) { + if(m_inp7->read() == 0) + return; + const rgb_t *paletteX = m_palette2->palette()->entry_list_raw(); uint16_t plane0, plane1, plane2, plane3; uint8_t pen; - if (m_onboard_graphics_selected && (m_inp13->read() != DUAL_MONITOR)) + if (m_onboard_video_selected && (m_inp13->read() != DUAL_MONITOR)) { for (int xi = 0; xi < 16; xi++) // blank screen when VT102 output active (..) { @@ -1253,9 +1252,7 @@ void rainbow_state::machine_reset() OPTION_RESET_PATTERNS for (int i = 0; i < 32; i++) - { m_gdc_color_map[i] = 0x00; - }; m_gdc_color_map_index = 0; // *********** Z80 @@ -1353,7 +1350,7 @@ uint32_t rainbow_state::screen_update_rainbow(screen_device &screen, bitmap_ind1 } int palette_selected; - if (m_onboard_graphics_selected && (m_monitor_suggested == COLOR_MONITOR)) + if (m_onboard_video_selected && (m_monitor_suggested == COLOR_MONITOR)) palette_selected = 2; // Color monitor; green text else palette_selected = m_inp9->read(); @@ -1361,7 +1358,7 @@ uint32_t rainbow_state::screen_update_rainbow(screen_device &screen, bitmap_ind1 m_crtc->palette_select(palette_selected); m_crtc->video_update(bitmap, cliprect); - if (m_screen_blank || ((!m_onboard_graphics_selected) && (m_inp13->read() != DUAL_MONITOR))) // dual monitor: never blank all + if (m_screen_blank || ((!m_onboard_video_selected) && (m_inp13->read() != DUAL_MONITOR))) // dual monitor: never blank all m_crtc->video_blanking(bitmap, cliprect); else m_crtc->video_update(bitmap, cliprect); @@ -2531,10 +2528,6 @@ IRQ_CALLBACK_MEMBER(rainbow_state::irq_callback) if (i == IRQ_8088_VBL) // If VBL IRQ acknowledged... m_crtc->MHFU(MHFU_RESET); // ...reset counter (also: DC012_W) -// Edstrom: "The call to m1_r() on line 2571 is not needed as the 7201 does not have an M1 input, instead it expects to get a software iack." -// if (i == IRQ_COMM_PTR_INTR_L) -// m_mpsc->m1_r(); // serial interrupt acknowledge - intnum = vectors[i] | m_irq_high; break; } @@ -2695,21 +2688,21 @@ WRITE8_MEMBER(rainbow_state::diagnostic_w) // 8088 (port 0A WRITTEN). Fig.4-28 + m_fdc->reset(); // See formatter description p.197 or 5-13 } - m_screen_blank = BIT(data, 1); + m_screen_blank = BIT(data, 1)? false : true; // inverse logic // Switch determines how the monochrome output pin is taken from: // 0 = M(ono) out from system module (DC011/DC012). Default, also used to setup dual monitors. // 1 = M(ono) output from GRAPHICS OPTION. (G)reen remains unused with a single COLOR monitor. - m_onboard_graphics_selected = (data & 0x04) ? false : true; - if (!m_onboard_graphics_selected) + m_onboard_video_selected = (data & 0x04) ? false : true; + if (!m_onboard_video_selected) { if (m_inp7->read() == 1) { printf("\nHINT: GRAPHICS OPTION ON. TEXT ONLY (DC011/DC012) OUTPUT NOW DISABLED.\n"); } else - { printf("\nALARM: GRAPHICS OPTION * SWITCHED OFF * VIA DIP. TEXT OUTPUT STILL ENABLED!\n"); - m_onboard_graphics_selected = true; + { printf("\nALARM: GRAPHICS OPTION * SWITCHED OFF * VIA DIP. TEXT OUTPUT STILL ENABLED!\n"); + m_onboard_video_selected = true; } logerror("DATA: %x (PC=%x)\n", data, m_i8088->pc()); } @@ -3260,10 +3253,10 @@ MACHINE_CONFIG_START(rainbow_state::rainbow) FD1793(config, m_fdc, 24.0734_MHz_XTAL / 24); // no separate 1 Mhz quartz MCFG_FLOPPY_DRIVE_ADD(FD1793_TAG ":0", rainbow_floppies, "525qd", rainbow_state::floppy_formats) MCFG_FLOPPY_DRIVE_ADD(FD1793_TAG ":1", rainbow_floppies, "525qd", rainbow_state::floppy_formats) - //MCFG_FLOPPY_DRIVE_ADD(FD1793_TAG ":2", rainbow_floppies, "525qd", rainbow_state::floppy_formats) - //MCFG_FLOPPY_DRIVE_ADD(FD1793_TAG ":3", rainbow_floppies, "525qd", rainbow_state::floppy_formats) - MCFG_FLOPPY_DRIVE_ADD(FD1793_TAG ":2", rainbow_floppies, "525dd", rainbow_state::floppy_formats) - MCFG_FLOPPY_DRIVE_ADD(FD1793_TAG ":3", rainbow_floppies, "35dd", rainbow_state::floppy_formats) + MCFG_FLOPPY_DRIVE_ADD(FD1793_TAG ":2", rainbow_floppies, "525qd", rainbow_state::floppy_formats) + MCFG_FLOPPY_DRIVE_ADD(FD1793_TAG ":3", rainbow_floppies, "525qd", rainbow_state::floppy_formats) + //MCFG_FLOPPY_DRIVE_ADD(FD1793_TAG ":2", rainbow_floppies, "525dd", rainbow_state::floppy_formats) + //MCFG_FLOPPY_DRIVE_ADD(FD1793_TAG ":3", rainbow_floppies, "35dd", rainbow_state::floppy_formats) MCFG_SOFTWARE_LIST_ADD("flop_list", "rainbow") /// ********************************* HARD DISK CONTROLLER ***************************************** @@ -3455,4 +3448,3 @@ ROM_END COMP(1982, rainbow100a, rainbow, 0, rainbow, rainbow100b_in, rainbow_state, empty_init, "Digital Equipment Corporation", "Rainbow 100-A", MACHINE_IS_SKELETON) COMP(1983, rainbow, 0, 0, rainbow, rainbow100b_in, rainbow_state, empty_init, "Digital Equipment Corporation", "Rainbow 100-B", MACHINE_IMPERFECT_GRAPHICS | MACHINE_IMPERFECT_COLORS) COMP(1985, rainbow190, rainbow, 0, rainbow, rainbow100b_in, rainbow_state, empty_init, "Digital Equipment Corporation", "Rainbow 190-B", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_COLORS) - |