diff options
Diffstat (limited to 'src/devices/bus/isa/pgc.cpp')
-rw-r--r-- | src/devices/bus/isa/pgc.cpp | 43 |
1 files changed, 11 insertions, 32 deletions
diff --git a/src/devices/bus/isa/pgc.cpp b/src/devices/bus/isa/pgc.cpp index d90badaeae7..9e65cd819d0 100644 --- a/src/devices/bus/isa/pgc.cpp +++ b/src/devices/bus/isa/pgc.cpp @@ -159,10 +159,6 @@ void isa8_pgc_device::device_add_mconfig(machine_config &config) m_cpu->set_irq_acknowledge_callback(FUNC(isa8_pgc_device::irq_callback)); #endif - timer_device &scantimer(TIMER(config, "scantimer")); - scantimer.configure_periodic(FUNC(isa8_pgc_device::scanline_callback), attotime::from_hz(60*PGC_TOTAL_VERT)); - scantimer.set_start_delay(attotime::from_hz(XTAL(50'000'000)/(2*PGC_HORZ_START))); - SCREEN(config, m_screen, SCREEN_TYPE_RASTER); m_screen->set_raw(XTAL(50'000'000)/2, PGC_TOTAL_HORZ, PGC_HORZ_START, PGC_HORZ_START+PGC_DISP_HORZ, @@ -214,15 +210,12 @@ isa8_pgc_device::isa8_pgc_device(const machine_config &mconfig, device_type type m_cpu(*this, "maincpu"), m_screen(*this, PGC_SCREEN_NAME), m_palette(*this, "palette"), - m_commarea(nullptr), m_vram(nullptr), m_eram(nullptr), m_bitmap(nullptr) + m_commarea(nullptr), m_vram(nullptr), m_eram(nullptr) { } void isa8_pgc_device::device_start() { - int width = PGC_DISP_HORZ; - int height = PGC_DISP_VERT; - if (m_palette != nullptr && !m_palette->started()) throw device_missing_dependencies(); @@ -233,9 +226,6 @@ void isa8_pgc_device::device_start() m_palette->set_pen_color(i, 0, 0, 0); } - m_bitmap = std::make_unique<bitmap_ind16>(width, height); - m_bitmap->fill(0); - m_vram = std::make_unique<uint8_t[]>(0x78000); m_eram = std::make_unique<uint8_t[]>(0x8000); @@ -405,32 +395,21 @@ READ8_MEMBER(isa8_pgc_device::init_r) return 0; // XXX ignored } -TIMER_DEVICE_CALLBACK_MEMBER(isa8_pgc_device::scanline_callback) +uint32_t isa8_pgc_device::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { - uint16_t x, y = m_screen->vpos(); uint16_t *p; uint8_t *v; - // XXX hpos shifts every frame -- fix - if (y == 0) LOGCMD("scanline_cb frame %d x %.4d y %.3d\n", - (int) m_screen->frame_number(), m_screen->hpos(), y); - - if (y < PGC_VERT_START) return; - y -= PGC_VERT_START; - if (y >= PGC_DISP_VERT) return; - - // XXX address translation happens in hardware - v = &m_vram[y * 1024]; - p = &m_bitmap->pix16(y, 0); - - for (x = 0; x < PGC_DISP_HORZ; x++) + for (int y = 0; y < PGC_DISP_VERT; y++) { - *p++ = *v++; + // XXX address translation happens in hardware + v = &m_vram[y * 1024]; + p = &bitmap.pix16(y + PGC_VERT_START, PGC_HORZ_START); + + for (int x = 0; x < PGC_DISP_HORZ; x++) + { + *p++ = *v++; + } } -} - -uint32_t isa8_pgc_device::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) -{ - copybitmap(bitmap, *m_bitmap, 0, 0, PGC_HORZ_START, PGC_VERT_START, cliprect); return 0; } |