diff options
Diffstat (limited to 'src/devices/bus/nubus/nubus_vikbw.cpp')
-rw-r--r-- | src/devices/bus/nubus/nubus_vikbw.cpp | 30 |
1 files changed, 13 insertions, 17 deletions
diff --git a/src/devices/bus/nubus/nubus_vikbw.cpp b/src/devices/bus/nubus/nubus_vikbw.cpp index 1c25795cd45..18c94f9ba5b 100644 --- a/src/devices/bus/nubus/nubus_vikbw.cpp +++ b/src/devices/bus/nubus/nubus_vikbw.cpp @@ -117,30 +117,26 @@ void nubus_vikbw_device::device_reset() uint32_t nubus_vikbw_device::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) { - uint32_t *scanline; - int x, y; - uint8_t pixels; - if (!m_vbl_disable) { raise_slot_irq(); } - for (y = 0; y < 768; y++) + for (int y = 0; y < 768; y++) { - scanline = &bitmap.pix32(y); - for (x = 0; x < 1024/8; x++) + uint32_t *scanline = &bitmap.pix(y); + for (int x = 0; x < 1024/8; x++) { - pixels = m_vram[(y * 128) + (BYTE4_XOR_BE(x))]; - - *scanline++ = m_palette[(pixels>>7)&1]; - *scanline++ = m_palette[(pixels>>6)&1]; - *scanline++ = m_palette[(pixels>>5)&1]; - *scanline++ = m_palette[(pixels>>4)&1]; - *scanline++ = m_palette[(pixels>>3)&1]; - *scanline++ = m_palette[(pixels>>2)&1]; - *scanline++ = m_palette[(pixels>>1)&1]; - *scanline++ = m_palette[(pixels&1)]; + uint8_t const pixels = m_vram[(y * 128) + (BYTE4_XOR_BE(x))]; + + *scanline++ = m_palette[BIT(pixels, 7)]; + *scanline++ = m_palette[BIT(pixels, 6)]; + *scanline++ = m_palette[BIT(pixels, 5)]; + *scanline++ = m_palette[BIT(pixels, 4)]; + *scanline++ = m_palette[BIT(pixels, 3)]; + *scanline++ = m_palette[BIT(pixels, 2)]; + *scanline++ = m_palette[BIT(pixels, 1)]; + *scanline++ = m_palette[BIT(pixels, 0)]; } } |