diff options
Diffstat (limited to 'mc6845.vhd')
| -rw-r--r-- | mc6845.vhd | 5 |
1 files changed, 3 insertions, 2 deletions
@@ -223,7 +223,7 @@ begin -- In interlace sync + video mode mask off the LSb of the
-- max scan line address
- if r08_interlace(1 downto 0) = "11" then
+ if r08_interlace = "11" then
max_scan_line := r09_max_scan_line_addr(4 downto 1) & "0";
else
max_scan_line := r09_max_scan_line_addr;
@@ -253,7 +253,7 @@ begin -- Increment field counter
field_counter <= field_counter + 1;
else
- -- On all other chracter rows within the field the row start address is
+ -- On all other character rows within the field the row start address is
-- increased by h_displayed and the row counter is incremented
ma_row_start := ma_row_start + r01_h_displayed;
row_counter <= row_counter + 1;
@@ -262,6 +262,7 @@ begin -- Next scan line. Count in twos in interlaced sync+video mode
if r08_interlace = "11" then
line_counter <= line_counter + 2;
+ line_counter(0) <= '0'; -- Force to even
else
line_counter <= line_counter + 1;
end if;
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