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Diffstat (limited to 'src/mame/drivers/zrt80.cpp')
-rw-r--r--src/mame/drivers/zrt80.cpp18
1 files changed, 8 insertions, 10 deletions
diff --git a/src/mame/drivers/zrt80.cpp b/src/mame/drivers/zrt80.cpp
index 2d571912ab6..712bfef2cca 100644
--- a/src/mame/drivers/zrt80.cpp
+++ b/src/mame/drivers/zrt80.cpp
@@ -224,18 +224,16 @@ void zrt80_state::machine_reset()
MC6845_UPDATE_ROW( zrt80_state::crtc_update_row )
{
- const rgb_t *palette = m_palette->palette()->entry_list_raw();
- uint8_t chr,gfx,inv;
- uint16_t mem,x;
- uint32_t *p = &bitmap.pix32(y);
- uint8_t polarity = ioport("DIPSW1")->read() & 4 ? 0xff : 0;
+ rgb_t const *const palette = m_palette->palette()->entry_list_raw();
+ uint32_t *p = &bitmap.pix(y);
+ uint8_t const polarity = ioport("DIPSW1")->read() & 4 ? 0xff : 0;
- for (x = 0; x < x_count; x++)
+ for (uint16_t x = 0; x < x_count; x++)
{
- inv = polarity;
+ uint8_t inv = polarity;
if (x == cursor_x) inv ^= 0xff;
- mem = (ma + x) & 0x1fff;
- chr = m_p_videoram[mem];
+ uint16_t const mem = (ma + x) & 0x1fff;
+ uint8_t chr = m_p_videoram[mem];
if (BIT(chr, 7))
{
@@ -243,7 +241,7 @@ MC6845_UPDATE_ROW( zrt80_state::crtc_update_row )
chr &= 0x7f;
}
- gfx = m_p_chargen[(chr<<4) | ra] ^ inv;
+ uint8_t const gfx = m_p_chargen[(chr<<4) | ra] ^ inv;
/* Display a scanline of a character */
*p++ = palette[BIT(gfx, 7)];