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Diffstat (limited to 'src/mame/apollo/apollo_v.cpp')
-rw-r--r-- | src/mame/apollo/apollo_v.cpp | 1950 |
1 files changed, 1950 insertions, 0 deletions
diff --git a/src/mame/apollo/apollo_v.cpp b/src/mame/apollo/apollo_v.cpp new file mode 100644 index 00000000000..f8b4f0551a8 --- /dev/null +++ b/src/mame/apollo/apollo_v.cpp @@ -0,0 +1,1950 @@ +// license:BSD-3-Clause +// copyright-holders:Hans Ostermeyer, R. Belmont +/* + * video/apollo.c + * + * Created on: April 25, 2013 + * Author: Hans Ostermeyer + * + * see also: + * - Domain Series 3000/Series 4000 Hardware Architecture Handbook (Order No. 007861 Rev. 02) + * - http://www.bitsavers.org/pdf/apollo/002398-04_Domain_Engineering_Handbook_Rev4_Jan87.pdf (page 12-16 ...) + * - http://www.bitsavers.org/pdf/brooktree/Brooktree_1991.pdf (page 305 ...) + * + */ + +#include "emu.h" + +#define VERBOSE 0 + +#include "apollo.h" + +#include "emupal.h" +#include "screen.h" + +#include "apollo.lh" +#include "apollo_15i.lh" + + +/*************************************************************************** + TYPE DEFINITIONS + ***************************************************************************/ + +// monochrome 1280x1024 +#define SCREEN_DEVICE_ID_19I 9 + +// monochrome 1024x800 +#define SCREEN_DEVICE_ID_15I 11 + +// 4 plane color 1024x800 +#define SCREEN_DEVICE_ID_C4P 8 + +// 8 plane color 1024x800 +#define SCREEN_DEVICE_ID_C8P 10 + +#define VIDEO_SCREEN_TAG "screen" + +// status register +#define SR_BLANK 0x80 +#define SR_V_BLANK 0x40 +#define SR_H_SYNC 0x20 +#define SR_DONE 0x20 // 4- and 8-plane color +#define SR_R_M_W 0x10 +#define SR_ALT 0x08 +#define SR_V_SYNC 0x04 +#define SR_SYNC 0x04 // 4- and 8-plane color +#define SR_H_CK 0x02 +#define SR_V_DATA 0x01 +#define SR_V_FLAG 0x01 // 4-plane color +#define SR_LUT_OK 0x01 // 8-plane color +// control register 0 +#define CR0_MODE(a) ((a) >> 5) +#define CR0_MODE_0 0 +#define CR0_MODE_1 1 +#define CR0_MODE_VECTOR 2 +#define CR0_MODE_3 3 +#define CR0_MODE_BLT 4 +#define CR0_MODE_NORMAL 7 +#define CR0_SHIFT(a) ((a) & 0x1f) + +// control register 1 +#define CR1_INV 0x80 +#define CR1_AD_BIT 0x80 // 4- and 8-plane color +#define CR1_DADDR_16 0x40 +#define CR1_DV_CK 0x40 // 4- and 8-plane color +#define CR1_DH_CK 0x20 +#define CR1_ROP_EN 0x10 +#define CR1_RESET 0x08 +#define CR1_DP_CK 0x04 +#define CR1_SYNC_EN 0x02 +#define CR1_DISP_EN 0x01 + +// control register 2 +#define CR2_S_DATA(a) ((a) >> 6) +#define CR2_CONST_ACCESS 0x00 +#define CR2_PIXEL_ACCESS 0x01 +#define CR2_SHIFT_ACCESS 0x02 +#define CR2_PLANE_ACCESS 0x03 +#define CR2_S_PLANE(a) (((a) >> 4) & 0x03) +#define CR2_D_PLANE(a) ((a) & 0x0f) +#define CR2B_S_PLANE(a) ((a) & 0x07) +#define CR2A_D_PLANE(a) (a) + +// Lookup table control register +#define LUT_AD_CS 0x80 +#define LUT_CPAL_CS 0x40 +#define LUT_FIFO_CS 0x20 +#define LUT_FIFO_RST 0x10 +#define LUT_ST_LUK 0x08 +#define LUT_R_W 0x04 +#define LUT_C1 0x02 +#define LUT_C0 0x01 +#define LUT_C1_C0(a) ((a)& (LUT_C1|LUT_C0)) + + +apollo_graphics_15i::bt458::bt458(running_machine &running_machine) +{ + m_machine = &running_machine; +} + +void apollo_graphics_15i::bt458::start() +{ + MLOG1(("start apollo_graphics_15i::bt458")); +} + +void apollo_graphics_15i::bt458::reset() +{ + MLOG1(("reset apollo_graphics_15i::bt458")); + + m_color_counter = 0; + m_red = 0; + m_green = 0; + + m_address_register = 0; + memset(m_color_palette_RAM, 0, sizeof(m_color_palette_RAM)); + memset(m_overlay_color, 0, sizeof(m_overlay_color)); + m_read_mask_register = 0; + m_blink_mask_register = 0; + m_command_register = 0; + m_control_test_register = 0; +} + +void apollo_graphics_15i::bt458::write(uint8_t data, uint8_t c10) +{ + MLOG1(("writing Bt458 data=%02x C1,C0=%d", data, c10)); + switch (c10) + { + case 0: // address register + m_address_register = data; + m_color_counter = 0; + MLOG1(("bt458::write 0: addr=%02x", data)); + break; + case 1: // color palette RAM + switch (m_color_counter) + { + case 0: + m_red = data; + m_color_counter++; + break; + case 1: + m_green = data; + m_color_counter++; + break; + case 2: + m_color_palette_RAM[m_address_register] = (m_red << 16) | (m_green << 8) | data; + m_address_register++; + m_color_counter = 0; + break; + } + break; + case 2: // registers + switch (m_address_register) + { + case 0x04: + m_read_mask_register = data; + MLOG1(("bt458::write: writing Bt458 m_read_mask_register=%02x", data)) + break; + case 0x05: + m_blink_mask_register = data; + MLOG1(("bt458::write: writing Bt458 m_blink_mask_register=%02x", data)) + break; + case 0x06: + m_command_register = data; + MLOG1(("bt458::write: writing Bt458 m_command_register=%02x", data)) + break; + case 0x07: + m_control_test_register = data; + break; + default: + MLOG1(("bt458::write: writing unexpected Bt458 data=%02x C1,C0=%d at %02x", data, c10, m_address_register)) + break; + } + break; + case 3: // overlay color + switch (m_address_register) + { + case 0x00: + case 0x01: + case 0x02: + case 0x03: + m_overlay_color[m_address_register] = data; + MLOG1(("bt458::write: writing Bt458 m_overlay_color[%d]=%02x",m_address_register, data)); + break; + default: + MLOG1(("bt458::write: writing unexpected Bt458 data=%02x C1,C0=%d at %02x", data, c10, m_address_register)); + break; + } + break; + default: + MLOG1(("bt458::write: writing unexpected Bt458 data=%02x C1,C0=%d", data, c10)) + ; + break; + } +} + +uint8_t apollo_graphics_15i::bt458::read(uint8_t c10) +{ + uint8_t data = 0xff; + + switch (c10) + { + case 0: // address register + data = m_address_register; + break; + case 1: // color palette RAM + switch (m_color_counter) + { + case 0: // red + data = (m_color_palette_RAM[m_address_register] >> 16) & 0xff; + m_color_counter++; + break; + case 1: // Green + data = (m_color_palette_RAM[m_address_register] >> 8) & 0xff; + m_color_counter++; + break; + case 2: // blue + data = m_color_palette_RAM[m_address_register] & 0xff; + m_address_register++; + m_color_counter = 0; + break; + } + break; + case 2: // registers + switch (m_address_register) + { + case 0x04: + data = m_read_mask_register; + MLOG1(("bt458::read: reading Bt458 m_read_mask_register=%02x", data)) + break; + case 0x05: + data = m_blink_mask_register; + MLOG1(("bt458::read: reading Bt458 m_blink_mask_register=%02x", data)) + break; + case 0x06: + data = m_command_register; + MLOG1(("bt458::read: reading Bt458 m_command_register=%02x", data)) + break; + case 0x07: + { + uint32_t rgb = m_color_palette_RAM[0]; + switch (m_control_test_register & 0x0f) + { + case 0x01: data = 0x01 | ((rgb >> 16) & 0xf0); break; + case 0x09: data = 0x09 | ((rgb >> 12) & 0xf0); break; + case 0x02: data = 0x02 | ((rgb >> 8) & 0xf0); break; + case 0x0a: data = 0x0a | ((rgb >> 4) & 0xf0); break; + case 0x04: data = 0x04 | ((rgb >> 0) & 0xf0); break; + case 0x0c: data = 0x0c | ((rgb << 4) & 0xf0); break; + default: data = 0xff; break; + } + } + break; + default: + MLOG1(("bt458::read: reading unexpected Bt458 data=%02x C1,C0=%d at %02x", data, c10, m_address_register)) + break; + } + break; + default: + MLOG1(("bt458::read: reading unexpected Bt458 data=%02x C1,C0=%d at %02x", data, c10, m_address_register)) + break; + } + +// MLOG1(("reading Bt458 data=%02x cs=%d", m_data, c10)); + return data; +} + +uint32_t apollo_graphics_15i::bt458::get_rgb(uint8_t index) +{ + return m_color_palette_RAM[index]; +} + +/*************************************************************************** + Monochrome Controller Registers at 0x5d800 - 0x5dc07 + ***************************************************************************/ + +const char *apollo_graphics_15i::cr_text(offs_t offset, uint8_t data, uint8_t rw) +{ + static char const *const cr0[8] = + { "cr0 mode=0 CPU dest BLT", "cr0 mode=1 Alternating BLT", + "cr0 mode=2 Vector mode", "cr0 mode=3 CPU Source BLT", + "cr0 mode=4 Double access BLT ", "cr0 mode=5 ???", + "cr0 mode=6 ???", "cr0 mode=7 Normal" }; + + static char const *const cr2[4] = + { "cr2 Constant access", "cr2 Pixel access", "cr2 ???", + "cr2 Plane access" }; + + static char const *const cr2b[4] = + { "cr2b Constant access", "cr2b Pixel access", "cr2b ???", + "cr2b Plane access" }; + + switch (offset & 0x407) + { + case 0: + return rw ? "sr" : "we"; + case 1: + return rw ? "id" : "we"; + case 2: + case 3: + return "rop0"; + case 4: + case 5: + return m_n_planes == 8 ? "rop1" : "mem refresh"; + case 6: + case 7: + return m_n_planes == 8 ? "mem refresh" : "???"; + case 0x400: + return cr0[data >> 5]; + case 0x401: + return m_n_planes == 8 ? "LUT data" : "red"; + case 0x402: + return "cr1"; + case 0x403: + return m_n_planes == 8 ? "LUT ctrl" : "green"; + case 0x404: + return m_n_planes == 8 ? "cr2a" : cr2[data >> 6]; + case 0x405: + return m_n_planes == 8 ? cr2b[data >> 6] : "blue"; + case 0x406: + return "cr3"; + case 0x407: + return m_n_planes == 8 ? "cr3b" : "a/d"; + default: + return "???"; + } +} + +void apollo_graphics_15i::log_cr1(const char * text) +{ + MLOG2(("%s: cr0=%02x cr1=%02x sr=%02x pixel_clock=%3d/%3d bl=%d vb=%d vs=%d hs=%d hc=%d vck=%d hck=%d pck=%d vd=%d", + text, + m_cr0, + m_cr1, + m_sr, + m_p_clock, + m_data_clock, + m_sr & SR_BLANK ? 1 : 0, + m_sr & SR_V_BLANK ? 1 : 0, + m_sr & SR_V_SYNC ? 1 : 0, + m_sr & SR_H_SYNC ? 1 : 0, + m_sr & SR_H_CK ? 1 : 0, + m_cr1 & CR1_DV_CK ? 1 : 0, + m_cr1 & CR1_DH_CK ? 1 : 0, + m_cr1 & CR1_DP_CK ? 1 : 0, + m_sr & SR_V_DATA ? 1 : 0)); +} + +void apollo_graphics_15i::increment_h_clock() +{ + MLOG1(("increment_h_clock: sr=%02x m_h_clock=%d", m_sr, m_h_clock)); + + if (m_device_id == SCREEN_DEVICE_ID_19I) + { + // DISP7A.DEX Test 5 + // Note: 108 = 80 + 28 = 1280/16 + 448/16 + switch (m_h_clock %= 108) + { + case 8: // Not blanking + m_sr |= SR_BLANK; + break; + case 88: // blanking + m_sr &= ~SR_BLANK; + break; + case 93: // HSync active + m_sr &= ~SR_H_SYNC; + // DISP7A.DEX.1 Test 6 + increment_v_clock(); + break; + case 104: // HSync inactive + m_sr |= SR_H_SYNC; + break; + } + } + else if (m_n_planes == 1) + { + switch (m_h_clock %= 84) + { + case 1: // HSync inactive + m_sr |= SR_H_SYNC; + break; + case 8: // Not blanking + m_sr |= SR_BLANK; + break; + case 72: // blanking + m_sr &= ~SR_BLANK; + break; + case 77: // HSync active + m_sr &= ~SR_H_SYNC; + // DISP7D.DEX.1 Test 6 + increment_v_clock(); + break; + } + } + else if (m_n_planes == 4) + { + switch (m_h_clock %= 84) + { + case 8: // Not blanking + m_sr |= SR_BLANK; + if (m_sr & SR_V_BLANK) + { + m_sr |= SR_V_FLAG; + } + break; + case 73: // blanking + m_sr &= ~SR_BLANK; + if (m_sr & SR_V_BLANK) + { + m_sr &= ~SR_V_FLAG; + } + break; + } + } + else // m_n_planes == 8 + { + switch (m_h_clock %= 84) + { + case 9: // Not blanking + m_sr |= SR_BLANK; + break; + case 73: // blanking + m_sr &= ~SR_BLANK; + break; + } + } + m_h_clock++; +} + +void apollo_graphics_15i::increment_v_clock() +{ + MLOG1(("increment_v_clock: sr=%02x m_v_clock=%d", m_sr, m_v_clock)); + + if (m_device_id == SCREEN_DEVICE_ID_19I) + { + switch (m_v_clock %= 1066) + { + case 1023: // blanking + m_sr &= ~(SR_V_BLANK | SR_BLANK); + break; + case 1028: // VSync active + m_sr &= ~SR_V_SYNC; + break; + case 1032: // VSync inactive + m_sr |= SR_V_SYNC; + break; + case 1065: // not blanking + m_sr |= (SR_V_BLANK | SR_BLANK); + break; + } + } + else if (m_n_planes == 1) + { + switch (m_v_clock %= 842) + { + case 799: + m_sr &= ~SR_V_BLANK; + break; + case 804: + m_sr &= ~SR_SYNC; + break; + case 808: + m_sr |= SR_SYNC; + break; + case 841: + m_sr |= SR_V_BLANK; + break; + } + } + else if (m_n_planes == 4) + { + // DISP7B.DEX Test 6 and Test 20 + switch (m_v_clock %= 842) + { + case 799: + m_sr &= ~SR_V_BLANK; + m_sr &= ~SR_V_FLAG; + break; + case 803: + m_sr &= ~SR_SYNC; + break; + case 807: + m_sr |= SR_SYNC; + break; + case 836: + m_sr |= SR_V_FLAG; + break; + case 841: + m_sr |= SR_V_BLANK; + break; + } + } + else if (m_n_planes == 8) + { + // DISP7C.DEX Test 50 + switch (m_v_clock %= 842) + { + case 800: + m_sr &= ~SR_V_BLANK; + break; + case 804: + m_sr &= ~SR_SYNC; + break; + case 808: + m_sr |= SR_SYNC; + break; + case 0: + m_sr |= SR_V_BLANK; + break; + } + } + m_v_clock++; + m_p_clock = 0; + m_data_clock = 0; +} + +void apollo_graphics_15i::increment_p_clock() +{ + if (m_n_planes == 1) + { + if ((m_cr1 & CR1_DISP_EN) == 0) + { + m_sr &= ~SR_V_DATA; + } + else + { + int pixel_offset = (m_device_id == SCREEN_DEVICE_ID_19I) ? 10 : 8; + + if (m_p_clock > pixel_offset) + { + // FIXME: ok for DEX Test 5 6 17 19 - nok for 20 + int pixel_addr = m_v_clock * m_width + m_data_clock; + + // FIXME: ok for DEX Test 5 6 17 20 - nok for 19 + // Note: for dn3500_19i DEX Test 17 18 20 will fail !!!! + // Note: must NOT reset m_data_clock in increment_p_clock ! +// int pixel_addr = m_data_clock * 32; + + uint16_t pixel = m_image_memory[pixel_addr / 16] & (0x8000 >> (pixel_addr % 16)); + + pixel = (pixel ? 1 : 0) ^ ((m_cr1 & CR1_INV) ? 0 : 1); + + m_sr = pixel ? (m_sr | SR_V_DATA) : (m_sr & ~SR_V_DATA); + + m_data_clock++; + } + + m_p_clock++; + + // DEX Test 4: Pixel Counter Test + if ((m_p_clock % 8) == 0) + { + m_sr ^= SR_H_CK; + } + } + } + else if (m_n_planes == 4) + { + if ((m_p_clock % 8) == 0 && m_p_clock > 0) + { + m_sr ^= SR_H_CK; + } + m_p_clock++; + } + else // m_n_planes == 8 + { + if ((m_p_clock % 8) == 1 && m_p_clock > 1) + { + m_sr ^= SR_H_CK; + } + m_p_clock++; + } +} + +void apollo_graphics_15i::set_cr1(uint8_t data) +{ + uint8_t diffs = m_cr1 ^ data; + m_cr1 = data; + + uint8_t dp_clock = (diffs & CR1_DP_CK) && (m_cr1 & CR1_DP_CK) == 0; + uint8_t dh_clock = (diffs & CR1_DH_CK) && (m_cr1 & CR1_DH_CK) == 0; + uint8_t dv_clock = m_n_planes == 1 ? 0 : ((diffs & CR1_DV_CK) && (m_cr1 & CR1_DV_CK) == 0); + + if ((m_cr1 & CR1_RESET) == 0) + { + if (diffs & CR1_RESET) + { + MLOG1(("!!! set_cr1: CR1_RESET")); + + m_blt_cycle_count = 0; + m_sr &= ~SR_ALT; + m_image_offset = 0; + memset(m_guard_latch, 0, sizeof(m_guard_latch)); + + m_h_clock = 0; + m_v_clock = 0; + m_p_clock = 0; + m_data_clock = 0; + + if (m_device_id == SCREEN_DEVICE_ID_19I) + { + m_sr = SR_H_CK | SR_V_BLANK | SR_H_SYNC | SR_V_SYNC; + } + else if (m_n_planes == 1) + { + m_sr = SR_V_BLANK | SR_V_SYNC; + } + else + { + m_sr = SR_H_CK | SR_V_BLANK | SR_SYNC | SR_DONE; + } + } + log_cr1("CR1_RESET"); + } + else + { + if ((diffs & CR1_RESET) && (m_cr1 & CR1_RESET) != 0) + { + log_cr1("CR1_RESET"); + } + + if (dh_clock) + { + increment_h_clock(); + log_cr1("CR1_DH_CK"); + } + + if (dv_clock) + { + increment_v_clock(); + log_cr1("CR1_DV_CK"); + } + + if (dp_clock) + { + increment_p_clock(); + log_cr1("CR1_DP_CK"); + } + + if ((m_sr & SR_V_BLANK) == 0) + { + m_sr &= ~SR_BLANK; + } + + if (diffs & CR1_DISP_EN) + { + // update screen + m_update_flag = 1; + } + } +} + +void apollo_graphics_15i::set_cr3a(uint8_t data) +{ + m_cr3a = data; + if ((data & 0x80) == 0) + { + int shift = (data & 0x0f) >> 1; + uint8_t bit_mask = 1 << shift; + if (data & 0x01) + { + set_cr1(m_cr1 | bit_mask); + } + else + { + set_cr1(m_cr1 & ~bit_mask); + } + } +} + +void apollo_graphics_15i::set_cr3b(uint8_t data) +{ + m_cr3b = data; + if ((data & 0x80) == 0) + { + int shift = (data & 0x0f) >> 1; + uint8_t bit_mask = 1 << shift; + if (data & 0x01) + { + set_lut_cr(m_lut_control | bit_mask); + } + else + { + set_lut_cr(m_lut_control & ~bit_mask); + } + } +} + +void apollo_graphics_15i::set_lut_cr(uint8_t data) +{ + uint8_t diffs = m_lut_control ^ data; + m_lut_control = data; + + if ((diffs & LUT_CPAL_CS) && (data & LUT_CPAL_CS) != 0) + { + MLOG1(("writing Color Graphics Controller: LUT_CPAL_CS Disabled")); + while (!m_lut_fifo->is_empty()) + { + m_bt458->write(m_lut_fifo->get(), LUT_C1_C0(m_lut_control)); + } + } + + if ((diffs & LUT_FIFO_RST) && (data & LUT_FIFO_RST) == 0) + { + MLOG1(("writing Color Graphics Controller: LUT_FIFO_RST Active")); + m_lut_fifo->reset(); + m_sr |= SR_LUT_OK; + } + + if ((diffs & LUT_FIFO_CS) && (data & LUT_FIFO_CS) == 0) + { + MLOG1(("writing Color Graphics Controller: LUT_FIFO_CS Enabled")); + } + + if ((diffs & LUT_ST_LUK) && (data & LUT_ST_LUK) == 0) + { + MLOG1(("writing Color Graphics Controller: LUT_ST_LUK Active")); + m_sr &= ~SR_LUT_OK; + } +} + +uint8_t apollo_graphics_15i::apollo_mcr_r(offs_t offset) +{ + uint8_t data; + switch (offset & 0x407) + { + case 0: + data = m_sr; + if (m_ad_pending) + { + m_ad_pending = 0; + m_sr &= ~SR_DONE; + } + break; + case 1: + data = m_n_planes == 1 ? m_device_id : 0xff; + break; + case 0x400: + data = m_cr0; + break; + case 0x402: + data = m_cr1; + break; + case 0x404: + data = m_cr2; + break; + case 0x406: + data = m_cr3a; + break; + default: + data = 0xff; + break; + } + + // omit excessive logging + static uint8_t status0 = 0xff; + if ((offset != 1) && (offset != 0 || data != status0)) + { + if (offset == 0) + status0 = data; + MLOG1(("reading Graphics Controller at offset %03x = %02x (%s)", offset, data, cr_text(offset, data, 1))); + } + + return data; +} + +void apollo_graphics_15i::apollo_mcr_w(offs_t offset, uint8_t data) +{ + MLOG1(("writing Graphics Controller at offset %03x = %02x (%s)", offset, data, cr_text(offset, data, 0))); + switch (offset & 0x407) + { + case 0: + m_write_enable_register = set_lsb0(m_write_enable_register, data); + break; + case 1: + m_write_enable_register = set_msb0(m_write_enable_register, data); + // FIXME: seems to be necessary for dex + m_blt_cycle_count = 0; + m_sr &= ~SR_ALT; + break; + case 2: + m_rop_register = set_lsb0(m_rop_register, data); + break; + case 3: + m_rop_register = set_msb0(m_rop_register, data); + set_status_rmw(); + break; + case 4: + case 5: + // trigger memory refresh in diagnostic mode + m_diag_mem_request = data; + break; + case 0x400: + m_cr0 = data; + break; + case 0x402: + set_cr1(data); + break; + case 0x404: + m_cr2 = data; + m_cr2_s_data = CR2_S_DATA(data); + m_cr2_s_plane = 0x00; + m_cr2_d_plane = 0x0e; + // for DISP7B.DEX Test 16 + m_sr |= SR_R_M_W; + break; + case 0x406: + set_cr3a(data); + break; + case 0x407: // A/D Channel Register + m_ad_pending = 1; + m_sr |= SR_DONE; + break; + } +} + +void apollo_graphics_15i::set_status_rmw() +{ + uint8_t plane, d_plane_bit; + uint32_t rop_reg; + + m_sr &= ~SR_R_M_W; + rop_reg = m_rop_register; + d_plane_bit = 0x01; + for (plane = 0; plane < m_n_planes; plane++) + { + if ((m_cr2_d_plane & d_plane_bit) == 0) + { + switch (rop_reg & 0x0f) + { + case 0: // zero + case 3: // Source + case 0x0c: // ~Source + case 0x0f: // one + break; + default: + m_sr |= SR_R_M_W; + break; + } + } + rop_reg >>= 4; + d_plane_bit <<= 1; + } +} + +uint16_t apollo_graphics_15i::rop(uint16_t dest_data, uint16_t src_data, uint8_t plane) +{ + uint16_t src_data1 = src_data; + if (m_cr1 & CR1_ROP_EN) + { + switch ((m_rop_register >> (plane * 4)) & 0x0f) + { + case 0: // zero + src_data = 0; + break; + case 1: // Source AND Destination + src_data = src_data & dest_data; + break; + case 2: // Source AND ~Destination + src_data = src_data & (~dest_data); + break; + case 3: // Source + break; + case 4: // ~Source AND Destination + src_data = (~src_data) & dest_data; + break; + case 5: // Destination + src_data = dest_data; + break; + case 6: // Source XOR Destination + src_data = src_data ^ dest_data; + break; + case 7: // Source OR Destination + src_data = src_data | dest_data; + break; + case 8: // Source NOR Destination + src_data = ~(src_data | dest_data); + break; + case 9: // Source XNOR Destination + src_data = ~(src_data ^ dest_data); + break; + case 0x0a: // ~Destination + src_data = ~dest_data; + break; + case 0x0b: // Source OR ~Destination + src_data = src_data | (~dest_data); + break; + case 0x0c: // ~Source + src_data = ~src_data; + break; + case 0x0d: // ~Source OR Destination + src_data = (~src_data) | dest_data; + break; + case 0x0e: // Source NAND Destination + src_data = ~(src_data & dest_data); + break; + case 0x0f: // One + src_data = 0xffff; + break; + } + } + MLOG2(("rop: cr0=%02x cr1=%02x cr2=%02x rop_register=%08x dest=%04x src=%04x plane=%d s_plane=%d ->%04x", m_cr0, m_cr1, m_cr2, m_rop_register,dest_data, src_data1, plane, m_cr2_s_plane, src_data )) + return src_data; +} + +void apollo_graphics_15i::set_source_data(uint32_t offset) +{ + if (m_n_planes == 1 || (m_cr1 & CR1_AD_BIT)) + { + offset += m_image_plane_size * m_cr2_s_plane; + m_guard_latch[m_cr2_s_plane] <<= 16; + m_guard_latch[m_cr2_s_plane] |= m_image_memory[offset]; + } + else + { + uint8_t plane; + for (plane = 0; plane < m_n_planes; plane++) + { + m_guard_latch[plane] <<= 16; + m_guard_latch[plane] |= m_image_memory[offset]; + offset += m_image_plane_size; + } + } +} + +uint32_t apollo_graphics_15i::get_source_data(uint8_t plane) +{ + uint32_t src_data; + + if (m_n_planes == 1 || (m_cr1 & CR1_AD_BIT)) + { + src_data = m_guard_latch[m_cr2_s_plane]; + } + else + { + src_data = m_guard_latch[plane]; + } + + switch (m_cr2_s_data) + { + case CR2_CONST_ACCESS: // 0x00 + // set source to all ones (used for vectors) + src_data = 0xffff; + break; + case CR2_PIXEL_ACCESS: // 0x01 + // replicate 4 LSB of data bus + src_data = src_data & (1 << plane) ? 0xffff : 0; + break; + case CR2_SHIFT_ACCESS: // 0x02 + // replicate LSB of shifter + src_data = src_data & 1 ? 0xffff : 0; + break; + case CR2_PLANE_ACCESS: // 0x03 + // use source data unchanged (normal use) + if (CR0_SHIFT(m_cr0) >= 16) + { + src_data = (src_data << 16) | (src_data >> 16); + } + src_data >>= (CR0_SHIFT(m_cr0) & 0x0f); + break; + } + return src_data; +} + +void apollo_graphics_15i::blt(uint32_t dest_addr, uint16_t mem_mask) +{ + uint16_t src_data, dest_data; + uint8_t d_plane_bit; + uint8_t plane; + + d_plane_bit = 0x01; + for (plane = 0; plane < m_n_planes; plane++) + { + if ((m_cr2_d_plane & d_plane_bit) == 0) + { + dest_data = m_image_memory[dest_addr]; + src_data = get_source_data(plane); + src_data = rop(dest_data, src_data, plane); + src_data &= ~(m_write_enable_register | ~mem_mask); + dest_data &= (m_write_enable_register | ~mem_mask); + m_image_memory[dest_addr] = dest_data | src_data; + } + dest_addr += m_image_plane_size; + d_plane_bit <<= 1; + } +} + +/*************************************************************************** + Monochrome graphics memory space at FA0000 - FDFFFF + Color graphics memory space at A0000 - BFFFF + ***************************************************************************/ + +uint16_t apollo_graphics_15i::apollo_mem_r(offs_t offset, uint16_t mem_mask) +{ + uint16_t data; + uint32_t src_addr; + + if (offset >= m_image_memory_size) + { + // 128 kB display buffer of 15" screen seems to be shadowed from $fa0000 to $fc0000 + MLOG1(("reading Graphics Memory at invalid offset %05x", offset)); + offset %= m_image_memory_size; + } + + src_addr = offset + m_image_plane_size * m_cr2_s_plane; + + switch (CR0_MODE(m_cr0)) + { + case CR0_MODE_VECTOR: // vector or fill mode + case CR0_MODE_3: // CPU source BLT: read internal data bus + data = m_guard_latch[m_cr2_s_plane]; + break; + + default: + set_source_data(offset); + data = m_image_memory[src_addr]; + break; + } + + // omit excessive logging + if ((offset & (m_image_plane_size - 1)) < 8) + { + MLOG1(("reading Graphics Memory with mode %d: src_addr %05x = %04x & %04x", CR0_MODE(m_cr0), src_addr, data, mem_mask)); + } + else if ((offset & (m_image_plane_size - 1)) == 8) + { + MLOG1(("...")); + } + return data; +} + +void apollo_graphics_15i::apollo_mem_w(offs_t offset, uint16_t data, uint16_t mem_mask) +{ + uint32_t dest_addr; + uint32_t src_addr; + + if (offset >= m_image_memory_size) + { + // 128 kB display buffer of 15" screen seems to be shadowed from $fa0000 to $fc0000 + MLOG1(("writing Graphics Memory at invalid offset %05x = %04x & %04x ", offset, data, mem_mask)); + offset %= m_image_memory_size; + } + + // omit excessive logging + if (offset < 24) + { + MLOG1(("writing Graphics Memory with mode %d: offset=%04x data=%04x mask=%04x", CR0_MODE(m_cr0), offset, data, mem_mask)); + } + else if (offset == 24) + { + MLOG1(("...")); + } + + switch (CR0_MODE(m_cr0)) + { + case CR0_MODE_0: + // CPU destination BLT + // 1. bus write to provide display memory address + // 2. bus read to get data + src_addr = offset + m_image_plane_size * m_cr2_s_plane; + m_guard_latch[m_cr2_s_plane] <<= 16; + m_guard_latch[m_cr2_s_plane] |= m_image_memory[src_addr]; + break; + + case CR0_MODE_1: + // Alternating BLT + // alternating bus writes provide src/dest address + // second write provides Write-enables + if (++m_blt_cycle_count == 1) + { + m_sr |= SR_ALT; + set_source_data(offset); + } + else + { + m_blt_cycle_count = 0; + m_sr &= ~SR_ALT; + m_write_enable_register = data; + blt(offset, mem_mask); + } + break; + + case CR0_MODE_VECTOR: + // Vector or fill mode + // write provides Write-enables and address + m_write_enable_register = data; + blt(offset, mem_mask); + break; + + case CR0_MODE_3: + // CPU source BLT + // 1. bus write to provide src data + // 2. bus write to provide Write-enables and address + if (++m_blt_cycle_count == 1) + { + m_sr |= SR_ALT; + + // strange: must fix byte access for /systest/grtest on sr10.2 + if (mem_mask == 0xff00) + { + data >>= 8; + mem_mask >>= 8; + } + + m_guard_latch[m_cr2_s_plane] <<= 16; + m_guard_latch[m_cr2_s_plane] |= (data & mem_mask); + } + else + { + m_blt_cycle_count = 0; + m_sr &= ~SR_ALT; + + m_write_enable_register = data; + blt(offset, mem_mask); + } + break; + + case CR0_MODE_BLT: + // Double access BLT + // bus write to provide src addr on address lines + // dest addr on data lines (16-bit WORD Offset) + + set_source_data(offset); + dest_addr = (data & mem_mask); + if (m_device_id == SCREEN_DEVICE_ID_19I && (m_cr1 & CR1_DADDR_16)) + { + dest_addr += 0x10000; + } + blt(dest_addr, 0xffff); + break; + + case CR0_MODE_NORMAL: + m_guard_latch[m_cr2_s_plane] <<= 16; + m_guard_latch[m_cr2_s_plane] |= (data & mem_mask); + blt(offset, mem_mask); + break; + + default: + MLOG(("writing Graphics Memory - unexpected cr0 mode %d", CR0_MODE(m_cr0))) + ; + break; + } + m_update_flag = 1; +} + +/*************************************************************************** + Color Screen + ***************************************************************************/ + +uint8_t apollo_graphics_15i::apollo_ccr_r(offs_t offset) +{ + uint8_t data; + + if (m_n_planes == 4) + { + switch (offset & 0x407) + { + case 1: + data = m_n_planes == 4 ? m_device_id : 0xff; + break; + case 0x407: + data = m_ad_result; + break; + default: + return apollo_mcr_r(offset); + } + } + else if (m_n_planes == 8) + { + switch (offset & 0x407) + { + case 1: + data = m_n_planes == 8 ? m_device_id : 0xff; + break; + case 4: + data = get_lsb1(m_rop_register); + break; + case 5: + data = get_msb1(m_rop_register); + break; + + case 0x401: + // LUT data register + if ((m_lut_control & LUT_FIFO_CS) == 0) + { + data = m_lut_fifo->get(); + } + else if ((m_lut_control & LUT_R_W) == 0) + { + MLOG1(("apollo_graphics_15i::apollo_ccr_r: reading LUT data register with unexpected RW = 0 in LUT Control register")); + data = m_lut_data; + } + else if ((m_lut_control & LUT_AD_CS) == 0) + { + data = m_ad_result; + } + else if ((m_lut_control & LUT_CPAL_CS) == 0) + { + data = m_bt458->read(LUT_C1_C0(m_lut_control)); + } + else + { + MLOG1(("apollo_graphics_15i::apollo_ccr_r: reading LUT data register with unexpected CS in LUT Control register")); + data = m_lut_data; + } + break; + case 0x403: + // LUT control register + data = m_lut_control; + break; + case 0x404: + // cr2a + data = m_cr2; + break; + case 0x405: + // cr2b + data = m_cr2b; + break; + case 0x407: + // cr3b + data = m_cr3b; + break; + default: + return apollo_mcr_r(offset); + } + } + else + { + data = 0xff; + } + + // omit excessive logging + static uint8_t status1 = 0xff; + if ((offset != 1) && (offset != 0 || data != status1)) + { + if (offset == 0) + status1 = data; + MLOG1(("reading Color Graphics Controller at offset %03x = %02x (%s)", offset, data, cr_text(offset, data, 1))); + } + + return data; +} + +uint8_t apollo_graphics_15i::get_pixel(uint32_t offset, uint16_t mask) +{ + uint8_t data = 0; + uint16_t *source_ptr = m_image_memory.get() + offset; + + if (m_n_planes == 4) + { + uint16_t data0 = source_ptr[0]; + uint16_t data1 = source_ptr[m_image_plane_size]; + uint16_t data2 = source_ptr[m_image_plane_size * 2]; + uint16_t data3 = source_ptr[m_image_plane_size * 3]; + + data = (data0 & mask) ? 1 : 0; + data |= (data1 & mask) ? 2 : 0; + data |= (data2 & mask) ? 4 : 0; + data |= (data3 & mask) ? 8 : 0; + } + else if (m_n_planes == 8) + { + uint16_t data0 = source_ptr[0]; + uint16_t data1 = source_ptr[m_image_plane_size]; + uint16_t data2 = source_ptr[m_image_plane_size * 2]; + uint16_t data3 = source_ptr[m_image_plane_size * 3]; + uint16_t data4 = source_ptr[m_image_plane_size * 4]; + uint16_t data5 = source_ptr[m_image_plane_size * 5]; + uint16_t data6 = source_ptr[m_image_plane_size * 6]; + uint16_t data7 = source_ptr[m_image_plane_size * 7]; + + data = (data0 & mask) ? 1 : 0; + data |= (data1 & mask) ? 2 : 0; + data |= (data2 & mask) ? 4 : 0; + data |= (data3 & mask) ? 8 : 0; + data |= (data4 & mask) ? 0x10 : 0; + data |= (data5 & mask) ? 0x20 : 0; + data |= (data6 & mask) ? 0x40 : 0; + data |= (data7 & mask) ? 0x80 : 0; + } + + return data; +} + +// read the 4-plane ADC value for data + +uint8_t apollo_graphics_15i::c4p_read_adc(uint8_t data) +{ + uint8_t value = 0; + + if ((data & 0x0c) == 0x04) + { + uint8_t red, green, blue; + uint8_t pixel = get_pixel((m_v_clock * m_buffer_width / 16) + m_h_clock, + 0x8000); + uint32_t rgb = m_color_lookup_table[pixel]; + + if ((m_sr & SR_BLANK) != 0) + { + // not blanking + red = 30 + ((rgb >> 16) & 0xff) / 4; + green = 60 + ((rgb >> 8) & 0xff) / 4; + blue = 30 + (rgb & 0xff) / 4; + } + else if (m_h_clock > 2) + { + // blanking + red = 20; + green = 50; + blue = 20; + } + else + { + // sync + red = 20; + green = 10; + blue = 20; + } + + switch (data & 3) + { + case 0: // Red + value = red; + break; + case 1: // Green + value = green; + break; + case 2: // Blue + value = blue; + break; + default: // unused + value = 0; + break; + } + } + return value; +} + +// read the 8-plane ADC value for data + +uint8_t apollo_graphics_15i::c8p_read_adc(uint8_t data) +{ + uint8_t value = 0; + + if ((data & 0x0c) == 0x04) + { + uint8_t red, green, blue; + uint8_t pixel = get_pixel((m_v_clock * m_buffer_width / 16) + m_h_clock, 0x8000); + uint32_t rgb = m_bt458->get_rgb(pixel); + + if ((m_sr & SR_BLANK) != 0) + { + // not blanking + red = 10 + ((rgb >> 16) & 0xff) / 2; + green = 70 + ((rgb >> 8) & 0xff) / 2; + blue = 10 + (rgb & 0xff) / 2; + } + else if (m_h_clock < 20) + { + // blanking + red = 5; + green = 60; + blue = 5; + } + else + { + // sync + red = 5; + green = 5; + blue = 5; + } + + switch (data & 3) + { + case 0: // Red + value = red; + break; + case 1: // Green + value = green; + break; + case 2: // Blue + value = blue; + break; + default: // unused + value = 0; + break; + } + } + return value; +} + +void apollo_graphics_15i::apollo_ccr_w(offs_t offset, uint8_t data) +{ + static const uint8_t rgb_value[16] = + { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, + 0xcc, 0xdd, 0xee, 0xff }; + + if (m_n_planes == 4) + { + switch (offset & 0x407) + { + case 0x401: + // red lookup table register + m_color_lookup_table[data >> 4] &= 0xff00ffff; + m_color_lookup_table[data >> 4] |= rgb_value[data & 0x0f] << 16; + break; + case 0x403: + // green lookup table register + m_color_lookup_table[data >> 4] &= 0xffff00ff; + m_color_lookup_table[data >> 4] |= rgb_value[data & 0x0f] << 8; + break; + case 0x404: + // cr2 + m_cr2 = data; + m_cr2_s_data = CR2_S_DATA(data); + m_cr2_s_plane = CR2_S_PLANE(data); + m_cr2_d_plane = CR2_D_PLANE(data); + // for DISP7B.DEX Test 16 + m_sr |= SR_R_M_W; + break; + case 0x405: + // blue lookup table register + m_color_lookup_table[data >> 4] &= 0xffffff00; + m_color_lookup_table[data >> 4] |= rgb_value[data & 0x0f]; + break; + case 0x407: + // A/D channel register + m_ad_result = c4p_read_adc(data); + m_ad_pending = 1; + m_sr |= SR_DONE; + break; + default: + apollo_mcr_w(offset, data); + return; + } + } + else if (m_n_planes == 8) + { + switch (offset & 0x407) + { + case 2: + m_rop_register = set_lsb0(m_rop_register, data); + break; + case 3: + m_rop_register = set_msb0(m_rop_register, data); + set_status_rmw(); + break; + case 4: + m_rop_register = set_lsb1(m_rop_register, data); + break; + case 5: + m_rop_register = set_msb1(m_rop_register, data); + set_status_rmw(); + break; + case 6: + case 7: + // trigger memory refresh in diagnostic mode + m_diag_mem_request = data; + break; + case 0x401: + // LUT data register + m_lut_data = data; + if ((m_lut_control & LUT_R_W) == LUT_R_W) + { + MLOG1(("apollo_graphics_15i::apollo_ccr_w: writing LUT data register with RW = 1 in LUT Control register")); + } + + if ((m_lut_control & LUT_AD_CS) == 0) + { + m_ad_result = c8p_read_adc(data); + m_ad_pending = 1; + m_sr |= SR_DONE; + } + else if ((m_lut_control & LUT_CPAL_CS) == 0) + { + m_bt458->write(data, LUT_C1_C0(m_lut_control)); + } + else if ((m_lut_control & LUT_FIFO_CS) == 0) + { + m_lut_fifo->put(data); + } + else + { + MLOG1(("apollo_graphics_15i::apollo_ccr_w: writing LUT data register with unexpected CS in LUT Control register")); + } + break; + case 0x403: + // LUT control register + set_lut_cr(data); + break; + case 0x404: + // cr2a + m_cr2 = data; + m_cr2_d_plane = CR2A_D_PLANE(data); + m_sr |= SR_R_M_W; + break; + case 0x405: + // cr2b + m_cr2b = data; + m_cr2_s_data = CR2_S_DATA(data); + m_cr2_s_plane = CR2B_S_PLANE(data); + break; + case 0x407: + // cr3b + set_cr3b(data); + break; + default: + apollo_mcr_w(offset, data); + return; + } + } + + MLOG1(("writing Color Graphics Controller at offset %03x = %02x (%s)", offset, data, cr_text(offset, data, 0))); +} + +uint16_t apollo_graphics_15i::apollo_cgm_r(offs_t offset, uint16_t mem_mask) +{ + if (!is_mono()) + { + return apollo_mem_r(offset, mem_mask); + } + else + { + return 0xffff; + } +} + +void apollo_graphics_15i::apollo_cgm_w(offs_t offset, uint16_t data, uint16_t mem_mask) +{ + if (!is_mono()) + { + apollo_mem_w(offset, data, mem_mask); + } +} + +/*************************************************************************** + VIDEO HARDWARE + ***************************************************************************/ + +uint32_t apollo_graphics_15i::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) +{ + int has_changed = 0; + + if (m_update_flag && !m_update_pending) + { + has_changed = 1; + m_update_flag = 0; + m_update_pending = 1; + screen_update1(bitmap, cliprect); + m_update_pending = 0; + } + return has_changed ? 0 : UPDATE_HAS_NOT_CHANGED; +} + +void apollo_graphics_15i::screen_update1(bitmap_rgb32 &bitmap, const rectangle &cliprect) +{ + uint16_t const *source_ptr = m_image_memory.get(); + uint16_t const inverse = (m_cr1 & CR1_INV) ? 0xffff : 0; + + MLOG1(("screen_update1: size=%0x rowpixels=%d", m_image_memory_size, bitmap.rowpixels())); + + if ((m_cr1 & CR1_DISP_EN) == 0) + { + // display is disabled + for (int y = 0; y < m_height; y++) + { + int dest = 0; + for (int x = 0; x < m_width; x += 16) + { + for (uint16_t mask = 0x8000; mask; mask >>= 1) + { + bitmap.pix(y, dest++) = 0; + } + } + source_ptr += (m_buffer_width - m_width) / 16; + } + } + else if (m_n_planes == 4) + { + for (int y = 0; y < m_height; y++) + { + int dest = 0; + for (int x = 0; x < m_width; x += 16) + { + uint16_t data0 = source_ptr[0]; + uint16_t data1 = source_ptr[m_image_plane_size]; + uint16_t data2 = source_ptr[m_image_plane_size * 2]; + uint16_t data3 = source_ptr[m_image_plane_size * 3]; + source_ptr++; + for (uint16_t mask = 0x8000; mask; mask >>= 1) + { + uint16_t data; + data = (data0 & mask) ? 1 : 0; + data |= (data1 & mask) ? 2 : 0; + data |= (data2 & mask) ? 4 : 0; + data |= (data3 & mask) ? 8 : 0; + bitmap.pix(y, dest++) = m_color_lookup_table[data]; + } + } + source_ptr += (m_buffer_width - m_width) / 16; + } + } + else if (m_n_planes == 8) + { + for (int y = 0; y < m_height; y++) + { + int dest = 0; + for (int x = 0; x < m_width; x += 16) + { + uint16_t data0 = source_ptr[0]; + uint16_t data1 = source_ptr[m_image_plane_size]; + uint16_t data2 = source_ptr[m_image_plane_size * 2]; + uint16_t data3 = source_ptr[m_image_plane_size * 3]; + uint16_t data4 = source_ptr[m_image_plane_size * 4]; + uint16_t data5 = source_ptr[m_image_plane_size * 5]; + uint16_t data6 = source_ptr[m_image_plane_size * 6]; + uint16_t data7 = source_ptr[m_image_plane_size * 7]; + source_ptr++; + for (uint16_t mask = 0x8000; mask; mask >>= 1) + { + uint16_t data; + data = (data0 & mask) ? 1 : 0; + data |= (data1 & mask) ? 2 : 0; + data |= (data2 & mask) ? 4 : 0; + data |= (data3 & mask) ? 8 : 0; + data |= (data4 & mask) ? 0x10 : 0; + data |= (data5 & mask) ? 0x20 : 0; + data |= (data6 & mask) ? 0x40 : 0; + data |= (data7 & mask) ? 0x80 : 0; + bitmap.pix(y, dest++) = m_bt458->get_rgb(data); + } + } + source_ptr += (m_buffer_width - m_width) / 16; + } + } + else // m_n_planes == 1 + { + for (int y = 0; y < m_height; y++) + { + int dest = 0; + for (int x = 0; x < m_width; x += 16) + { + uint16_t const data = *source_ptr++ ^ inverse; + for (uint16_t mask = 0x8000; mask; mask >>= 1) + { + bitmap.pix(y, dest++) = data & mask ? 0 : 0x00ffffff; + } + } + source_ptr += (m_buffer_width - m_width) / 16; + } + } +} + +/*------------------------------------------------- + vblank_state_changed - + called on each state change of the VBLANK signal + -------------------------------------------------*/ + +void apollo_graphics_15i::vblank_state_changed(screen_device &screen, bool vblank_state) +{ + if ((m_cr1 & CR1_RESET) && (m_cr1 & CR1_SYNC_EN)) + { + if (vblank_state) + { + m_sr &= ~(SR_V_BLANK | SR_BLANK); + if (m_n_planes == 1) + { + // faking V_DATA for disp.dex test 16 + if (m_image_memory[0]) + { + m_sr |= SR_V_DATA; + } + } + else if (m_n_planes == 4) + { + m_sr &= ~SR_V_FLAG; + } + } + else + { + m_sr |= (SR_V_BLANK | SR_BLANK); + if (m_n_planes == 1) + { + m_sr &= ~SR_V_DATA; + } + else if (m_n_planes == 4) + { + m_sr |= SR_V_FLAG; + } + } + } +} + +void apollo_graphics_15i::register_vblank_callback() +{ + MLOG1(("register_vblank_callback")); + + /* register for VBLANK callbacks */ + m_screen->register_vblank_callback(vblank_state_delegate(&apollo_graphics_15i::vblank_state_changed,this)); +} + + +/*************************************************************************** + MACHINE DRIVERS + ***************************************************************************/ + +void apollo_graphics_15i::device_add_mconfig(machine_config &config) +{ + config.set_default_layout(layout_apollo_15i); + SCREEN(config, m_screen, SCREEN_TYPE_RASTER); + m_screen->set_video_attributes(VIDEO_UPDATE_AFTER_VBLANK); + m_screen->set_raw(68000000, 1346, 0, 1024, 841, 0, 800); + m_screen->set_screen_update(FUNC(apollo_graphics_15i::screen_update)); +} + +DEFINE_DEVICE_TYPE(APOLLO_GRAPHICS, apollo_graphics_15i, "apollo_graphics_15i", "Apollo Screen") + +apollo_graphics_15i::apollo_graphics_15i(const machine_config &mconfig,const char *tag, device_t *owner, uint32_t clock) : + apollo_graphics_15i(mconfig, APOLLO_GRAPHICS, tag, owner, clock) +{ +} + +apollo_graphics_15i::apollo_graphics_15i(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock) : + device_t(mconfig, type, tag, owner, clock), + m_screen(*this, VIDEO_SCREEN_TAG) +{ +} + +apollo_graphics_15i::~apollo_graphics_15i() +{ +} + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void apollo_graphics_15i::device_start() +{ + MLOG1(("apollo_graphics_15i::device_start")) + + m_n_planes = 0; + m_width = 0; + m_height = 0; + m_buffer_width = 0; + m_buffer_height = 0; + + m_sr = 0; + m_device_id = 0; + m_write_enable_register = 0; + m_rop_register = 0; + m_diag_mem_request = 0; + m_cr0 = 0; + m_cr1 = 0; + m_cr2 = 0; + m_cr2b = 0; + m_cr2_s_data = 0; + m_cr2_s_plane = 0x00; + m_cr2_d_plane = 0x0e; + m_cr3a = 0; + m_cr3b = 0; + m_ad_result = 0; + m_ad_pending = 0; + + m_lut_control = 0; + m_lut_data = 0; + + m_update_flag = 0; + m_update_pending = 0; + + m_blt_cycle_count = 0; + m_image_offset = 0; + memset(m_guard_latch, 0, sizeof(m_guard_latch)); + + m_h_clock = 0; + m_v_clock = 0; + m_p_clock = 0; + m_data_clock = 0; + + m_image_memory = nullptr; + m_image_plane_size = 0; + m_image_memory_size = 0; + + memset(m_color_lookup_table, 0, sizeof(m_color_lookup_table)); + + m_lut_fifo.reset(); + m_bt458.reset(); +} + +//------------------------------------------------- +// device_reset - device-specific reset +//------------------------------------------------- + +void apollo_graphics_15i::device_reset() +{ + MLOG1(("apollo_graphics_15i::device_reset")); + + if (m_n_planes == 0) + { + if (apollo_config(APOLLO_CONF_MONO_19I)) + { + // monochrome 1280x1024 + m_n_planes = 1; + m_device_id = SCREEN_DEVICE_ID_19I; + m_width = 1280; + m_height = 1024; + m_buffer_width = 2048; + m_buffer_height = 1024; + } + else if (apollo_config(APOLLO_CONF_MONO_15I)) + { + // monochrome 1024x800 + m_n_planes = 1; + m_device_id = SCREEN_DEVICE_ID_15I; + m_width = 1024; + m_height = 800; + m_buffer_width = 1024; + m_buffer_height = 1024; + } + else if (apollo_config(APOLLO_CONF_4_PLANES)) + { + // 4-planes color 1024x800 + m_n_planes = 4; + m_device_id = SCREEN_DEVICE_ID_C4P; + m_width = 1024; + m_height = 800; + m_buffer_width = 1024; + m_buffer_height = 1024; + } + else + { + // 8-planes color 1024x800 + m_n_planes = 8; + m_device_id = SCREEN_DEVICE_ID_C8P; + m_width = 1024; + m_height = 800; + m_buffer_width = 1024; + m_buffer_height = 1024; + + m_lut_fifo = std::make_unique<lut_fifo>(); + + m_bt458 = std::make_unique<bt458>(machine()); + m_bt458->start(); + m_bt458->reset(); + } + } + + if (m_image_memory == nullptr) + { + /* allocate the memory image */ + m_image_plane_size = m_buffer_height * m_buffer_width / 16; + m_image_memory_size = m_image_plane_size * m_n_planes; + m_image_memory + = std::make_unique<uint16_t[]>(m_image_memory_size); + assert(m_image_memory != nullptr); + + MLOG1(("device reset apollo graphics: buffer=%p size=%0x", (void *) m_image_memory.get(), m_image_memory_size)); + } + + memset(m_color_lookup_table, 0, sizeof(m_color_lookup_table)); + memset(m_image_memory.get(), 0, m_image_memory_size * 2); + + // register_vblank_callback(this); + + /* FIXME: register for VBLANK callbacks */ + register_vblank_callback(); +} + +//------------------------------------------------- + +void apollo_graphics_19i::device_add_mconfig(machine_config &config) +{ + config.set_default_layout(layout_apollo); + PALETTE(config, "palette", palette_device::MONOCHROME); + SCREEN(config, m_screen, SCREEN_TYPE_RASTER); + m_screen->set_video_attributes(VIDEO_UPDATE_AFTER_VBLANK); + m_screen->set_raw(120000000, 1728, 0, 1280, 1066, 0, 1024); + m_screen->set_screen_update(FUNC(apollo_graphics_19i::screen_update)); +} + +DEFINE_DEVICE_TYPE(APOLLO_MONO19I, apollo_graphics_19i, "apollo_graphics_19i", "Apollo 19\" Monochrome Screen") + +apollo_graphics_19i::apollo_graphics_19i(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : + apollo_graphics_15i(mconfig, APOLLO_MONO19I, tag, owner, clock) +{ +} + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void apollo_graphics_19i::device_start() +{ + MLOG1(("apollo_graphics_19i::device_start")); + + apollo_graphics_15i::device_start(); +} + +//------------------------------------------------- +// device_reset - device-specific reset +//------------------------------------------------- + +void apollo_graphics_19i::device_reset() +{ + MLOG1(("apollo_graphics_19i::device_reset")); + + if (m_n_planes == 0) + { + // monochrome 1280x1024 + m_n_planes = 1; + m_device_id = SCREEN_DEVICE_ID_19I; + m_width = 1280; + m_height = 1024; + m_buffer_width = 2048; + m_buffer_height = 1024; + } + + apollo_graphics_15i::device_reset(); + + /* FIXME: register for VBLANK callbacks */ + register_vblank_callback(); +} + + +uint16_t apollo_graphics_15i::apollo_mgm_r(offs_t offset, uint16_t mem_mask) +{ + if (is_mono()) + { + return apollo_mem_r(offset, mem_mask); + } + else + { + return 0xffff; + } +} + +void apollo_graphics_15i::apollo_mgm_w(offs_t offset, uint16_t data, uint16_t mem_mask) +{ + if (is_mono()) + { + apollo_mem_w(offset, data, mem_mask); + } +} |