summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/spiders.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/drivers/spiders.cpp')
-rw-r--r--src/mame/drivers/spiders.cpp26
1 files changed, 12 insertions, 14 deletions
diff --git a/src/mame/drivers/spiders.cpp b/src/mame/drivers/spiders.cpp
index 2f77fc485fe..b1dd2729510 100644
--- a/src/mame/drivers/spiders.cpp
+++ b/src/mame/drivers/spiders.cpp
@@ -285,8 +285,6 @@ MC6845_UPDATE_ROW( spiders_state::crtc_update_row )
for (uint8_t cx = 0; cx < x_count; cx++)
{
- uint8_t data1, data2, data3;
-
/* the memory is hooked up to the MA, RA lines this way */
offs_t offs = ((ma << 3) & 0x3f00) |
((ra << 5) & 0x00e0) |
@@ -295,9 +293,9 @@ MC6845_UPDATE_ROW( spiders_state::crtc_update_row )
if (m_flipscreen)
offs = offs ^ 0x3fff;
- data1 = m_ram[0x0000 | offs];
- data2 = m_ram[0x4000 | offs];
- data3 = m_ram[0x8000 | offs];
+ uint8_t data1 = m_ram[0x0000 | offs];
+ uint8_t data2 = m_ram[0x4000 | offs];
+ uint8_t data3 = m_ram[0x8000 | offs];
for (int i = 0; i < 8; i++)
{
@@ -309,9 +307,9 @@ MC6845_UPDATE_ROW( spiders_state::crtc_update_row )
((data2 & 0x80) >> 6) |
((data1 & 0x80) >> 7);
- data1 = data1 << 1;
- data2 = data2 << 1;
- data3 = data3 << 1;
+ data1 <<= 1;
+ data2 <<= 1;
+ data3 <<= 1;
}
else
{
@@ -319,17 +317,17 @@ MC6845_UPDATE_ROW( spiders_state::crtc_update_row )
((data2 & 0x01) << 1) |
((data1 & 0x01) << 0);
- data1 = data1 >> 1;
- data2 = data2 >> 1;
- data3 = data3 >> 1;
+ data1 >>= 1;
+ data2 >>= 1;
+ data3 >>= 1;
}
- bitmap.pix32(y, x) = m_palette->pen_color(color);
+ bitmap.pix(y, x) = m_palette->pen_color(color);
- x = x + 1;
+ x++;
}
- ma = ma + 1;
+ ma++;
}
}