github.com/Gehstock.Mist_FPGA
1
0
Fork 0
mirror of https://github.com/Gehstock/Mist_FPGA.git synced 2026-01-20 01:34:38 +00:00
Code Issues Releases Wiki Activity

TraverseUSA: add a PAL/original timings switch

Browse Source
This commit is contained in:
Gyorgy Szombathelyi 2020-03-11 20:06:38 +01:00
parent 3e431aca07
commit a4392d5df9
2 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Arcade_MiST/IremM52 Hardware/TraverseUSA_MiST/rtl/TraverseUSA_MiST.sv
View File

@ -57,6 +57,7 @@ localparam CONF_STR = {
`CORE_NAME,";;",
"O2,Rotate Controls,Off,On;",
"O34,Scanlines,Off,25%,50%,75%;",
"O1,Video Timing,Original,Pal 50Hz;",
"OA,Blending,Off,On;",
"O5,Units,MP,Km;",
"O6,Freeze,Disable,Enable;",
@ -70,6 +71,7 @@ localparam CONF_STR = {
wire rotate = status[2];
wire [1:0] scanlines = status[4:3];
wire blend = status[10];
wire pal = status[1];
reg shtrider = 0;
wire [7:0] dip1 = 8'hff;
@ -235,6 +237,7 @@ traverse_usa traverse_usa (
.clock_0p895 ( clk_aud ),
.reset ( reset ),
.palmode ( pal ),
.shtrider ( shtrider ),
.video_r ( r ),

7
Arcade_MiST/IremM52 Hardware/TraverseUSA_MiST/rtl/traverse_usa.vhd
View File

@ -113,6 +113,7 @@ port(
clock_0p895 : in std_logic;
reset : in std_logic;
palmode : in std_logic; -- 50 Hz vfreq
shtrider : in std_logic; -- Shot Rider mode
-- tv15Khz_mode : in std_logic;
video_r : out std_logic_vector(1 downto 0);
@ -334,7 +335,11 @@ begin
hcnt <= '0'&x"80";
vcnt <= vcnt + 1;
if vcnt = '1'&x"FF" then
vcnt <= '0'&x"E6"; -- from M52 schematics
if palmode = '0' then
vcnt <= '0'&x"E6"; -- from M52 schematics
else
vcnt <= '0'&x"C8";
end if;
end if;
end if;
end if;