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-rw-r--r--src/mess/video/apollo.c1978
1 files changed, 0 insertions, 1978 deletions
diff --git a/src/mess/video/apollo.c b/src/mess/video/apollo.c
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index c79464355c3..00000000000
--- a/src/mess/video/apollo.c
+++ /dev/null
@@ -1,1978 +0,0 @@
-// 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 ...)
- *
- */
-
-#define VERBOSE 0
-
-#include "includes/apollo.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 data, UINT8 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 apollo_graphics_15i::bt458::read(UINT8 c10)
-{
- UINT8 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 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 apollo_graphics_15i::bt458::get_rgb(UINT8 index)
-{
- return m_color_palette_RAM[index];
-}
-
-/***************************************************************************
- Monochrome Controller Registers at 0x5d800 - 0x5dc07
- ***************************************************************************/
-
-const char *apollo_graphics_15i::cr_text(offs_t offset, UINT8 data, UINT8 rw)
-{
- static const char *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 const char *cr2[4] =
- { "cr2 Constant access", "cr2 Pixel access", "cr2 ???",
- "cr2 Plane access" };
-
- static const char *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 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 data)
-{
- UINT8 diffs = m_cr1 ^ data;
- m_cr1 = data;
-
- UINT8 dp_clock = (diffs & CR1_DP_CK) && (m_cr1 & CR1_DP_CK) == 0;
- UINT8 dh_clock = (diffs & CR1_DH_CK) && (m_cr1 & CR1_DH_CK) == 0;
- UINT8 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 data)
-{
- m_cr3a = data;
- if ((data & 0x80) == 0)
- {
- int shift = (data & 0x0f) >> 1;
- UINT8 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 data)
-{
- m_cr3b = data;
- if ((data & 0x80) == 0)
- {
- int shift = (data & 0x0f) >> 1;
- UINT8 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 data)
-{
- UINT8 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;
- }
-}
-
-READ8_MEMBER( apollo_graphics_15i::apollo_mcr_r )
-{
- UINT8 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 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;
-}
-
-WRITE8_MEMBER( apollo_graphics_15i::apollo_mcr_w )
-{
- 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 plane, d_plane_bit;
- UINT32 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 apollo_graphics_15i::rop(UINT16 dest_data, UINT16 src_data, UINT8 plane)
-{
- UINT16 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 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 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 apollo_graphics_15i::get_source_data(UINT8 plane)
-{
- UINT32 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 dest_addr, UINT16 mem_mask)
-{
- UINT16 src_data, dest_data;
- UINT8 d_plane_bit;
- UINT8 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
- ***************************************************************************/
-
-READ16_MEMBER( apollo_graphics_15i::apollo_mem_r )
-{
- UINT16 data;
- UINT32 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;
-}
-
-WRITE16_MEMBER( apollo_graphics_15i::apollo_mem_w )
-{
- UINT32 dest_addr;
- UINT32 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
- ***************************************************************************/
-
-READ8_MEMBER( apollo_graphics_15i::apollo_ccr_r )
-{
- UINT8 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(space, offset, mem_mask);
- }
- }
- 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(space, offset, mem_mask);
- }
- }
- else
- {
- data = 0xff;
- }
-
- // omit excessive logging
- static UINT8 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 apollo_graphics_15i::get_pixel(UINT32 offset, UINT16 mask)
-{
- UINT8 data = 0;
- UINT16 *source_ptr = m_image_memory + offset;
-
- if (m_n_planes == 4)
- {
- UINT16 data0 = source_ptr[0];
- UINT16 data1 = source_ptr[m_image_plane_size];
- UINT16 data2 = source_ptr[m_image_plane_size * 2];
- UINT16 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 data0 = source_ptr[0];
- UINT16 data1 = source_ptr[m_image_plane_size];
- UINT16 data2 = source_ptr[m_image_plane_size * 2];
- UINT16 data3 = source_ptr[m_image_plane_size * 3];
- UINT16 data4 = source_ptr[m_image_plane_size * 4];
- UINT16 data5 = source_ptr[m_image_plane_size * 5];
- UINT16 data6 = source_ptr[m_image_plane_size * 6];
- UINT16 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 apollo_graphics_15i::c4p_read_adc(UINT8 data)
-{
- UINT8 value = 0;
-
- if ((data & 0x0c) == 0x04)
- {
- UINT8 red, green, blue;
- UINT8 pixel = get_pixel((m_v_clock * m_buffer_width / 16) + m_h_clock,
- 0x8000);
- UINT32 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 apollo_graphics_15i::c8p_read_adc(UINT8 data)
-{
- UINT8 value = 0;
-
- if ((data & 0x0c) == 0x04)
- {
- UINT8 red, green, blue;
- UINT8 pixel = get_pixel((m_v_clock * m_buffer_width / 16) + m_h_clock, 0x8000);
- UINT32 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;
-}
-
-WRITE8_MEMBER( apollo_graphics_15i::apollo_ccr_w )
-{
- static const UINT8 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(space, offset, data, mem_mask);
- 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) == 1)
- {
- MLOG1(("apollo_graphics_15i::apollo_ccr_w: writing LUT data register with RW = 1 in LUT Control register"));
- }
- else 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(space, offset, data, mem_mask);
- return;
- }
- }
-
- MLOG1(("writing Color Graphics Controller at offset %03x = %02x (%s)", offset, data, cr_text(offset, data, 0)));
-}
-
-READ16_MEMBER( apollo_graphics_15i::apollo_cgm_r )
-{
- if (!is_mono())
- {
- return apollo_mem_r(space, offset, mem_mask);
- }
- else
- {
- return 0xffff;
- }
-}
-
-WRITE16_MEMBER( apollo_graphics_15i::apollo_cgm_w )
-{
- if (!is_mono())
- {
- apollo_mem_w(space, offset, data, mem_mask);
- }
-}
-
-/***************************************************************************
- VIDEO HARDWARE
- ***************************************************************************/
-
-UINT32 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 *source_ptr = m_image_memory;
- int x, y;
- UINT16 data, mask;
- UINT16 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 (y = 0; y < m_height; y++)
- {
- int dest = 0;
- for (x = 0; x < m_width; x += 16)
- {
- for (mask = 0x8000; mask; mask >>= 1)
- {
- bitmap.pix32(y, dest++) = 0;
- }
- }
- source_ptr += (m_buffer_width - m_width) / 16;
- }
- }
- else if (m_n_planes == 4)
- {
- for (y = 0; y < m_height; y++)
- {
- int dest = 0;
- for (x = 0; x < m_width; x += 16)
- {
- UINT16 data0 = source_ptr[0];
- UINT16 data1 = source_ptr[m_image_plane_size];
- UINT16 data2 = source_ptr[m_image_plane_size * 2];
- UINT16 data3 = source_ptr[m_image_plane_size * 3];
- source_ptr++;
- for (mask = 0x8000; mask; mask >>= 1)
- {
- data = (data0 & mask) ? 1 : 0;
- data |= (data1 & mask) ? 2 : 0;
- data |= (data2 & mask) ? 4 : 0;
- data |= (data3 & mask) ? 8 : 0;
- bitmap.pix32(y, dest++) = m_color_lookup_table[data];
- }
- }
- source_ptr += (m_buffer_width - m_width) / 16;
- }
- }
- else if (m_n_planes == 8)
- {
- for (y = 0; y < m_height; y++)
- {
- int dest = 0;
- for (x = 0; x < m_width; x += 16)
- {
- UINT16 data0 = source_ptr[0];
- UINT16 data1 = source_ptr[m_image_plane_size];
- UINT16 data2 = source_ptr[m_image_plane_size * 2];
- UINT16 data3 = source_ptr[m_image_plane_size * 3];
- UINT16 data4 = source_ptr[m_image_plane_size * 4];
- UINT16 data5 = source_ptr[m_image_plane_size * 5];
- UINT16 data6 = source_ptr[m_image_plane_size * 6];
- UINT16 data7 = source_ptr[m_image_plane_size * 7];
- source_ptr++;
- for (mask = 0x8000; mask; mask >>= 1)
- {
- 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.pix32(y, dest++) = m_bt458->get_rgb(data);
- }
- }
- source_ptr += (m_buffer_width - m_width) / 16;
- }
- }
- else // m_n_planes == 1
- {
- for (y = 0; y < m_height; y++)
- {
- int dest = 0;
- for (x = 0; x < m_width; x += 16)
- {
- data = *source_ptr++ ^ inverse;
- for (mask = 0x8000; mask; mask >>= 1)
- {
- bitmap.pix32(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 */
- screen_device *screen = (screen_device *)machine().device(VIDEO_SCREEN_TAG);
- screen->register_vblank_callback(vblank_state_delegate(FUNC(apollo_graphics_15i::vblank_state_changed),this));
-}
-
-
-/***************************************************************************
- MACHINE DRIVERS
- ***************************************************************************/
-
-MACHINE_CONFIG_FRAGMENT( apollo_graphics )
- MCFG_DEFAULT_LAYOUT( layout_apollo_15i )
- MCFG_SCREEN_ADD(VIDEO_SCREEN_TAG, RASTER)
- MCFG_SCREEN_VIDEO_ATTRIBUTES(VIDEO_UPDATE_AFTER_VBLANK)
- MCFG_SCREEN_REFRESH_RATE(76)
- MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(657))
- MCFG_SCREEN_SIZE(1024, 800)
- MCFG_SCREEN_VISIBLE_AREA(0, 1023, 0, 799)
- MCFG_SCREEN_UPDATE_DEVICE(APOLLO_SCREEN_TAG, apollo_graphics_15i, screen_update)
-MACHINE_CONFIG_END
-
-const device_type APOLLO_GRAPHICS = &device_creator<apollo_graphics_15i> ;
-
-apollo_graphics_15i::apollo_graphics_15i(const machine_config &mconfig,const char *tag, device_t *owner, UINT32 clock) :
- device_t(mconfig, APOLLO_GRAPHICS, "Apollo Screen", tag, owner, clock,"apollo_graphics_15i", __FILE__),
- m_lut_fifo(NULL),
- m_bt458(NULL)
-{
-}
-
-apollo_graphics_15i::apollo_graphics_15i(const machine_config &mconfig,const char *tag, device_t *owner, UINT32 clock, device_type type,const char *name, const char *shortname, const char *source) :
- device_t(mconfig, type, name, tag, owner, clock, shortname, source),
- m_lut_fifo(NULL),
- m_bt458(NULL)
-{
-}
-
-apollo_graphics_15i::~apollo_graphics_15i()
-{
- if (m_lut_fifo) global_free(m_lut_fifo);
- if (m_bt458) global_free(m_bt458);
-}
-
-//-------------------------------------------------
-// device_config_complete - perform any
-// operations now that the configuration is
-// complete
-//-------------------------------------------------
-
-void apollo_graphics_15i::device_config_complete()
-{
-}
-
-//-------------------------------------------------
-// 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 = 0;
- m_image_plane_size = 0;
- m_image_memory_size = 0;
-
- memset(m_color_lookup_table, 0, sizeof(m_color_lookup_table));
-
- m_lut_fifo = NULL;
- m_bt458 = NULL;
-}
-
-//-------------------------------------------------
-// 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;
-
- if (m_lut_fifo) global_free(m_lut_fifo);
- if (m_bt458) global_free(m_bt458);
-
- m_lut_fifo = global_alloc(lut_fifo);
-
- m_bt458 = global_alloc(bt458(machine()));
- m_bt458->start();
- m_bt458->reset();
- }
- }
-
- if (m_image_memory == NULL)
- {
- /* 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
- = auto_alloc_array(machine(), UINT16, m_image_memory_size);
- assert(m_image_memory != NULL);
-
- MLOG1(("device reset apollo graphics: buffer=%p size=%0x", (void *) m_image_memory, m_image_memory_size));
- }
-
- memset(m_color_lookup_table, 0, sizeof(m_color_lookup_table));
- memset(m_image_memory, 0, m_image_memory_size * 2);
-
- // register_vblank_callback(this);
-
- /* FIXME: register for VBLANK callbacks */
- register_vblank_callback();
-}
-
-//-------------------------------------------------
-
-MACHINE_CONFIG_FRAGMENT( apollo_mono19i )
- MCFG_DEFAULT_LAYOUT( layout_apollo )
- MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette")
- MCFG_SCREEN_ADD(VIDEO_SCREEN_TAG, RASTER)
- MCFG_SCREEN_VIDEO_ATTRIBUTES(VIDEO_UPDATE_AFTER_VBLANK)
- MCFG_SCREEN_REFRESH_RATE(64)
- MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(616))
- MCFG_SCREEN_SIZE(1280, 1024)
- MCFG_SCREEN_VISIBLE_AREA(0, 1279, 0, 1023)
- MCFG_SCREEN_UPDATE_DEVICE(APOLLO_SCREEN_TAG, apollo_graphics_19i, screen_update)
- MACHINE_CONFIG_END
-
-const device_type APOLLO_MONO19I = &device_creator<apollo_graphics_19i> ;
-
-apollo_graphics_19i::apollo_graphics_19i(const machine_config &mconfig,
- const char *tag, device_t *owner, UINT32 clock) :
- apollo_graphics_15i(mconfig, tag, owner, clock, APOLLO_MONO19I,
- "Apollo 19\" Monochrome Screen", "apollo_graphics_19i", __FILE__)
-{
-}
-
-//-------------------------------------------------
-// device_config_complete - perform any
-// operations now that the configuration is
-// complete
-//-------------------------------------------------
-
-void apollo_graphics_19i::device_config_complete()
-{
-}
-
-//-------------------------------------------------
-// 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();
-}
-
-
-READ16_MEMBER( apollo_graphics_15i::apollo_mgm_r )
-{
- if (is_mono())
- {
- return apollo_mem_r(space, offset, mem_mask);
- }
- else
- {
- return 0xffff;
- }
-}
-
-WRITE16_MEMBER( apollo_graphics_15i::apollo_mgm_w )
-{
- if (is_mono())
- {
- apollo_mem_w(space, offset, data, mem_mask);
- }
-}