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r18656 Monday 22nd October, 2012 at 02:32:27 UTC by R. Belmont
(MESS) Mac: Add support for PDS Sigma Designs L-View card [R. Belmont, Sharkpuncher]
[src/mess]mess.mak
[src/mess/drivers]mac.c
[src/mess/video]pds30_sigmalview.c* pds30_sigmalview.h*

trunk/src/mess/drivers/mac.c
r18655r18656
7171#include "video/nubus_m2video.h"
7272#include "video/pds30_cb264.h"
7373#include "video/pds30_procolor816.h"
74#include "video/pds30_sigmalview.h"
7475#include "includes/mac.h"
7576#include "mac.lh"
7677
r18655r18656
863864static SLOT_INTERFACE_START(mac_pds030_cards)
864865    SLOT_INTERFACE("cb264", PDS030_CB264SE30)   // RasterOps Colorboard 264/SE30
865866    SLOT_INTERFACE("pc816", PDS030_PROCOLOR816) // Lapis ProColor Server 8*16 PDS
867    SLOT_INTERFACE("lview", PDS030_LVIEW)       // Sigma Designs L-View
866868SLOT_INTERFACE_END
867869
868870/***************************************************************************
trunk/src/mess/mess.mak
r18655r18656
710710   $(MESS_VIDEO)/nubus_wsportrait.o \
711711    $(MESS_VIDEO)/pds30_cb264.o \
712712    $(MESS_VIDEO)/pds30_procolor816.o \
713    $(MESS_VIDEO)/pds30_sigmalview.o \
713714
714715$(MESSOBJ)/applied.a:         \
715716   $(MESS_VIDEO)/mbee.o      \
trunk/src/mess/video/pds30_sigmalview.c
r0r18656
1/***************************************************************************
2
3  Sigma Designs L-View card
4 
5***************************************************************************/
6
7#include "emu.h"
8#include "video/pds30_sigmalview.h"
9
10#define LVIEW_SCREEN_NAME "lview_screen"
11#define LVIEW_ROM_REGION  "lview_rom"
12
13#define VRAM_SIZE   (0x80000)  // 512K?
14
15MACHINE_CONFIG_FRAGMENT( lview )
16   MCFG_SCREEN_ADD( LVIEW_SCREEN_NAME, RASTER)
17   MCFG_SCREEN_UPDATE_DEVICE(DEVICE_SELF, nubus_lview_device, screen_update)
18   MCFG_SCREEN_SIZE(832,600)
19   MCFG_SCREEN_REFRESH_RATE(70)
20   MCFG_SCREEN_VISIBLE_AREA(0, 832-1, 0, 600-1)
21MACHINE_CONFIG_END
22
23ROM_START( lview )
24   ROM_REGION(0x4000, LVIEW_ROM_REGION, 0)
25    ROM_LOAD( "lv_asi_4_00.bin", 0x000000, 0x004000, CRC(b806f875) SHA1(1e58593b1a8720193d1651b0d8a0d43e4e47563d) )
26ROM_END
27
28//**************************************************************************
29//  GLOBAL VARIABLES
30//**************************************************************************
31
32const device_type PDS030_LVIEW = &device_creator<nubus_lview_device>;
33
34
35//-------------------------------------------------
36//  machine_config_additions - device-specific
37//  machine configurations
38//-------------------------------------------------
39
40machine_config_constructor nubus_lview_device::device_mconfig_additions() const
41{
42   return MACHINE_CONFIG_NAME( lview );
43}
44
45//-------------------------------------------------
46//  rom_region - device-specific ROM region
47//-------------------------------------------------
48
49const rom_entry *nubus_lview_device::device_rom_region() const
50{
51   return ROM_NAME( lview );
52}
53
54//**************************************************************************
55//  LIVE DEVICE
56//**************************************************************************
57
58//-------------------------------------------------
59//  nubus_lview_device - constructor
60//-------------------------------------------------
61
62nubus_lview_device::nubus_lview_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
63        device_t(mconfig, PDS030_LVIEW, "Lapis ProColor Server 8*16", tag, owner, clock),
64      device_nubus_card_interface(mconfig, *this)
65{
66   m_shortname = "pd3_lviw";
67}
68
69nubus_lview_device::nubus_lview_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock) :
70        device_t(mconfig, type, name, tag, owner, clock),
71      device_nubus_card_interface(mconfig, *this)
72{
73   m_shortname = "pd3_lviw";
74}
75
76//-------------------------------------------------
77//  device_start - device-specific startup
78//-------------------------------------------------
79
80void nubus_lview_device::device_start()
81{
82   UINT32 slotspace;
83
84   // set_nubus_device makes m_slot valid
85   set_nubus_device();
86   install_declaration_rom(this, LVIEW_ROM_REGION);
87
88   slotspace = get_slotspace();
89
90//  printf("[lview %p] slotspace = %x\n", this, slotspace);
91
92   m_vram = auto_alloc_array(machine(), UINT8, VRAM_SIZE);
93   m_vram32 = (UINT32 *)m_vram;
94
95   m_nubus->install_device(slotspace, slotspace+VRAM_SIZE-1, read32_delegate(FUNC(nubus_lview_device::vram_r), this), write32_delegate(FUNC(nubus_lview_device::vram_w), this));
96   m_nubus->install_device(slotspace+0x900000, slotspace+VRAM_SIZE-1+0x900000, read32_delegate(FUNC(nubus_lview_device::vram_r), this), write32_delegate(FUNC(nubus_lview_device::vram_w), this));
97   m_nubus->install_device(slotspace+0xb0000, slotspace+0xbffff, read32_delegate(FUNC(nubus_lview_device::lview_r), this), write32_delegate(FUNC(nubus_lview_device::lview_w), this));
98
99   m_timer = timer_alloc(0, NULL);
100   m_screen = NULL;   // can we look this up now?
101}
102
103//-------------------------------------------------
104//  device_reset - device-specific reset
105//-------------------------------------------------
106
107void nubus_lview_device::device_reset()
108{
109   m_vbl_disable = 1;
110    m_protstate = 0;
111   memset(m_vram, 0, VRAM_SIZE);
112   memset(m_palette, 0, sizeof(m_palette));
113
114   m_palette[0] = MAKE_RGB(255, 255, 255);
115   m_palette[0x80] = MAKE_RGB(0, 0, 0);
116}
117
118
119void nubus_lview_device::device_timer(emu_timer &timer, device_timer_id tid, int param, void *ptr)
120{
121   if (!m_vbl_disable)
122   {
123      raise_slot_irq();
124   }
125
126   m_timer->adjust(m_screen->time_until_pos(599, 0), 0);
127}
128
129/***************************************************************************
130
131  CB264 section
132
133***************************************************************************/
134
135UINT32 nubus_lview_device::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
136{
137   UINT32 *scanline;
138   int x, y;
139   UINT8 pixels, *vram;
140
141   // first time?  kick off the VBL timer
142   if (!m_screen)
143   {
144      m_screen = &screen;
145      m_timer->adjust(m_screen->time_until_pos(599, 0), 0);
146   }
147
148   vram = m_vram + 0x20;
149
150    for (y = 0; y < 600; y++)
151    {
152        scanline = &bitmap.pix32(y);
153        for (x = 0; x < 832/8; x++)
154        {
155            pixels = vram[(y * (832/8)) + (BYTE4_XOR_BE(x))];
156
157            *scanline++ = m_palette[(pixels&0x80)];
158            *scanline++ = m_palette[((pixels<<1)&0x80)];
159            *scanline++ = m_palette[((pixels<<2)&0x80)];
160            *scanline++ = m_palette[((pixels<<3)&0x80)];
161            *scanline++ = m_palette[((pixels<<4)&0x80)];
162            *scanline++ = m_palette[((pixels<<5)&0x80)];
163            *scanline++ = m_palette[((pixels<<6)&0x80)];
164            *scanline++ = m_palette[((pixels<<7)&0x80)];
165        }
166    }
167
168   return 0;
169}
170
171READ32_MEMBER( nubus_lview_device::lview_r )
172{
173    UINT32 rv = 0;
174
175//    printf("prot_r: @ %x, mask %08x [PC=%x  state %d]\n", offset, mem_mask, machine().device("maincpu")->safe_pc(), m_protstate);
176
177    if ((m_protstate == 1) || (m_protstate == 10) || (machine().device("maincpu")->safe_pc() == 0x5aac))
178    {
179        rv = 0x02020202;
180    }
181
182    if (m_protstate == 8)
183    {
184        rv = 0x01010101;
185    }
186
187    m_protstate++;
188    return rv;
189}
190
191WRITE32_MEMBER( nubus_lview_device::lview_w )
192{
193//    if (offset != 0x7a && offset != 0x3ffb) printf("prot_w: %08x @ %x, mask %08x (PC=%x)\n", data, offset, mem_mask, space.device().safe_pc());
194
195    if (offset == 0x7a)
196    {
197        if (data == 1)
198        {
199            m_vbl_disable = 0;
200            lower_slot_irq();
201        }
202        else
203        {
204            m_vbl_disable = 1;
205        }
206    }
207}
208
209WRITE32_MEMBER( nubus_lview_device::vram_w )
210{
211   COMBINE_DATA(&m_vram32[offset]);
212}
213
214READ32_MEMBER( nubus_lview_device::vram_r )
215{
216   return m_vram32[offset];
217}
trunk/src/mess/video/pds30_sigmalview.h
r0r18656
1#pragma once
2
3#ifndef __NUBUS_LVIEW_H__
4#define __NUBUS_LVIEW_H__
5
6#include "emu.h"
7#include "machine/nubus.h"
8
9//**************************************************************************
10//  TYPE DEFINITIONS
11//**************************************************************************
12
13// ======================> nubus_lview_device
14
15class nubus_lview_device :
16      public device_t,
17      public device_nubus_card_interface
18{
19public:
20        // construction/destruction
21        nubus_lview_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
22      nubus_lview_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock);
23
24      // optional information overrides
25      virtual machine_config_constructor device_mconfig_additions() const;
26      virtual const rom_entry *device_rom_region() const;
27
28      UINT32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
29protected:
30        // device-level overrides
31        virtual void device_start();
32        virtual void device_reset();
33        virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
34
35        DECLARE_READ32_MEMBER(lview_r);
36        DECLARE_WRITE32_MEMBER(lview_w);
37        DECLARE_READ32_MEMBER(vram_r);
38        DECLARE_WRITE32_MEMBER(vram_w);
39
40public:
41        UINT8 *m_vram;
42        UINT32 *m_vram32;
43        UINT32 m_vbl_disable, m_toggle;
44        UINT32 m_palette[256];
45        screen_device *m_screen;
46        emu_timer *m_timer;
47        int m_protstate;
48};
49
50
51// device type definition
52extern const device_type PDS030_LVIEW;
53
54#endif  /* __NUBUS_LVIEW_H__ */

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