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(MESS) hp16500b: main screen do what? (nw)

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This commit is contained in:
arbee 2014-12-13 17:27:15 -05:00
parent 3f0a1eb839
commit 7e34df4e0b
1 changed files with 80 additions and 16 deletions
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96
src/mess/drivers/hp16500.c
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@ -1,5 +1,6 @@
/*
Hewlett-Packard HP16500b Logic Analyzer
/***************************************************************************
Hewlett-Packard HP16500b Logic Analyzer
MC68EC030 @ 25 MHz
@ -15,38 +16,105 @@
IRQ 5 = 814a
IRQ 6 = 35c8 (jump 840120)
IRQ 7 = 35d4 (jump 840120)
*/
****************************************************************************/
#include "emu.h"
#include "cpu/m68000/m68000.h"
class hp16500_state : public driver_device
{
public:
hp16500_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) ,
m_maincpu(*this, "maincpu") { }
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_vram(*this, "vram")
{ }
virtual void video_start();
UINT32 screen_update_hp16500(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
required_device<cpu_device> m_maincpu;
};
required_device<cpu_device> m_maincpu;
required_shared_ptr<UINT32> m_vram;
DECLARE_WRITE32_MEMBER(palette_w);
private:
UINT32 m_palette[256], m_colors[3], m_count, m_clutoffs;
};
static ADDRESS_MAP_START(hp16500_map, AS_PROGRAM, 32, hp16500_state)
AM_RANGE(0x00000000, 0x0001ffff) AM_ROM AM_REGION("bios", 0)
AM_RANGE(0x00600000, 0x0063ffff) AM_RAM
AM_RANGE(0x0020f000, 0x0020f003) AM_WRITE(palette_w)
AM_RANGE(0x00600000, 0x0063ffff) AM_RAM AM_SHARE("vram")
AM_RANGE(0x00800000, 0x009fffff) AM_RAM // 284e end of test - d0 = 0 for pass
ADDRESS_MAP_END
void hp16500_state::video_start()
{
m_count = 0;
m_clutoffs = 0;
memset(m_palette, 0, sizeof(m_palette));
}
WRITE32_MEMBER(hp16500_state::palette_w)
{
if (mem_mask == 0xff000000)
{
m_clutoffs = (data>>24) & 0xff;
}
else if (mem_mask == 0x00ff0000)
{
UINT8 tmpcolor = (data>>16) & 0xff;
if ((tmpcolor & 0xf0) == 0x00)
{
tmpcolor |= (tmpcolor << 4);
}
m_colors[m_count++] = tmpcolor;
if (m_count == 3)
{
m_palette[m_clutoffs] = rgb_t(m_colors[0], m_colors[1], m_colors[2]);
m_clutoffs++;
if (m_clutoffs > 255)
{
m_clutoffs = 0;
}
m_count = 0;
}
}
}
// 4 bpp
// addr = ((Y * 0xfc0) + 0x360) + (X * 4)
UINT32 hp16500_state::screen_update_hp16500(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
UINT32 *scanline;
int x, y;
UINT8 pixels;
for (y = 0; y < 400; y++)
{
scanline = &bitmap.pix32(y);
for (x = 0; x < 576/8; x++)
{
pixels = m_vram[(y * (288/4)) + x];
*scanline++ = m_palette[((pixels&0xf0000000)>>28)];
*scanline++ = m_palette[((pixels&0xf000000)>>24)];
*scanline++ = m_palette[((pixels&0xf00000)>>20)];
*scanline++ = m_palette[((pixels&0xf0000)>>16)];
*scanline++ = m_palette[((pixels&0xf000)>>12)];
*scanline++ = m_palette[((pixels&0xf00)>>8)];
*scanline++ = m_palette[((pixels&0xf0)>>4)];
*scanline++ = m_palette[(pixels&0xf)];
}
}
return 0;
}
@ -56,14 +124,10 @@ static MACHINE_CONFIG_START( hp16500, hp16500_state )
MCFG_CPU_PROGRAM_MAP(hp16500_map)
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_RAW_PARAMS(25175000, 800, 0, 640, 525, 0, 480)
MCFG_SCREEN_VIDEO_ATTRIBUTES(VIDEO_UPDATE_BEFORE_VBLANK)
MCFG_SCREEN_SIZE(1024, 768)
MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 480-1)
MCFG_SCREEN_UPDATE_DRIVER(hp16500_state, screen_update_hp16500)
MCFG_PALETTE_ADD("palette", 256)
MCFG_SCREEN_SIZE(576,400)
MCFG_SCREEN_VISIBLE_AREA(0, 576-1, 0, 400-1)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
MACHINE_CONFIG_END