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Revision 124

Added by markw over 11 years ago

Added scandoubler

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chameleon/atari800core_chameleon.vhd
LIBRARY work;
entity atari800core_chameleon is
GENERIC
(
TV : integer; -- 1 = PAL, 0=NTSC
VIDEO : integer; -- 1 = RGB, 2 = VGA
COMPOSITE_SYNC : integer; --0 = no, 1 = yes!
SCANDOUBLE : integer -- 1 = YES, 0=NO, (+ later scanlines etc)
);
port
(
-- VGA
......
signal pause_atari : std_logic;
SIGNAL speed_6502 : std_logic_vector(5 downto 0);
SIGNAL PAL : std_logic;
SIGNAL PAL : std_logic;
SIGNAL COMPOSITE_ON_HSYNC : std_logic;
SIGNAL VGA : std_logic;
-- spi
signal spi_cs_n : std_logic;
signal spi_mosi : std_logic;
signal spi_clk : std_logic;
-- scandoubler
signal half_scandouble_enable_reg : std_logic;
signal half_scandouble_enable_next : std_logic;
signal VIDEO_B : std_logic_vector(7 downto 0);
signal VGA_VS : std_logic;
signal VGA_HS : std_logic;
begin
pal <= '1' when tv=1 else '0';
vga <= '1' when video=2 else '0';
composite_on_hsync <= '1' when composite_sync=1 else '0';
RESET_N <= PLL_LOCKED;
PAL <= '1';
-- disable unused parts
-- sdram
......
cycle_length => 32,
internal_rom => 1,
internal_ram => 0,
video_bits => 5
video_bits => 8,
palette => 0
)
PORT MAP
(
......
RESET_N => RESET_N and SDRAM_RESET_N and not(reset_atari),
-- VIDEO OUT - PAL/NTSC, original Atari timings approx (may be higher res)
VIDEO_VS => vga_vs_raw,
VIDEO_HS => vga_hs_raw,
VIDEO_B => blu,
VIDEO_G => grn,
VIDEO_R => red,
VIDEO_VS => VGA_VS_RAW,
VIDEO_HS => VGA_HS_RAW,
VIDEO_B => VIDEO_B,
VIDEO_G => open,
VIDEO_R => open,
-- AUDIO OUT - Pokey/GTIA 1-bit and Covox all mixed
AUDIO_L => audio_l_raw,
......
);
-- video glue
nHSync <= (VGA_HS_RAW xor VGA_VS_RAW);
nVSync <= (VGA_VS_RAW);
--nHSync <= (VGA_HS_RAW xor VGA_VS_RAW);
--nVSync <= (VGA_VS_RAW);
-- audio glue
dac_left : hq_dac
......
generic map (COUNT=>32) -- cycle_length
port map(clk=>clk,reset_n=>reset_n,enable_in=>'1',enable_out=>zpu_pokey_enable);
-----
-- scandoubler
-----
process(clk,RESET_N,SDRAM_RESET_N,reset_atari)
begin
if ((RESET_N and SDRAM_RESET_N and not(reset_atari))='0') then
half_scandouble_enable_reg <= '0';
elsif (clk'event and clk='1') then
half_scandouble_enable_reg <= half_scandouble_enable_next;
end if;
end process;
half_scandouble_enable_next <= not(half_scandouble_enable_reg);
scandoubler1: entity work.scandoubler
GENERIC MAP
(
video_bits=>5
)
PORT MAP
(
CLK => CLK,
RESET_N => RESET_N and SDRAM_RESET_N and not(reset_atari),
VGA => vga,
COMPOSITE_ON_HSYNC => composite_on_hsync,
colour_enable => half_scandouble_enable_reg,
doubled_enable => '1',
-- GTIA interface
colour_in => VIDEO_B,
vsync_in => VGA_VS_RAW,
hsync_in => VGA_HS_RAW,
-- TO TV...
R => red,
G => grn,
B => blu,
VSYNC => VGA_VS,
HSYNC => VGA_HS
);
nHSync <= not(VGA_HS);
nVSync <= not(VGA_VS);
end vhdl;
chameleon/build.sh
rm -rf build
mkdir build
cp atari800core_chameleon.vhd build
cp pll.* build
cp zpu_rom.* build
cp atari800core.sdc build
cp atari800core.cdf build
cp chameleon_* build
#!/usr/bin/perl -w
use strict;
mkdir build/common
mkdir build/common/a8core
mkdir build/common/components
mkdir build/common/zpu
cp ../common/a8core/* ./build/common/a8core
cp ../common/components/* ./build/common/components
cp ../common/zpu/* ./build/common/zpu
my $wanted_variant = shift @ARGV;
cd build
../makeqsf ../atari800core.qsf ./common/a8core ./common/components ./common/zpu
#variants...
my $PAL = 1;
my $NTSC = 0;
quartus_sh --flow compile atari800core
my $RGB = 1; # i.e. not scandoubled
my $VGA = 2;
#Added like this to the generated qsf
#set_parameter -name TV 1
my %variants =
(
"PAL_RGB" =>
{
"TV" => $PAL,
"SCANDOUBLE" => 0,
"VIDEO" => $RGB,
"COMPOSITE_SYNC" => 1
},
"PAL_VGA" =>
{
"TV" => $PAL,
"SCANDOUBLE" => 1,
"VIDEO" => $VGA,
"COMPOSITE_SYNC" => 0
},
"PAL_VGA_CS" =>
{
"TV" => $PAL,
"SCANDOUBLE" => 1,
"VIDEO" => $VGA,
"COMPOSITE_SYNC" => 1
},
"NTSC_RGB" =>
{
"TV" => $NTSC,
"SCANDOUBLE" => 0,
"VIDEO" => $RGB,
"COMPOSITE_SYNC" => 1
},
"NTSC_VGA" =>
{
"TV" => $NTSC,
"SCANDOUBLE" => 1,
"VIDEO" => $VGA,
"COMPOSITE_SYNC" => 0
},
"NTSC_VGA_CS" =>
{
"TV" => $NTSC,
"SCANDOUBLE" => 1,
"VIDEO" => $VGA,
"COMPOSITE_SYNC" => 1
}
);
if (not defined $wanted_variant or (not exists $variants{$wanted_variant} and $wanted_variant ne "ALL"))
{
die "Provide variant of ALL or ".join ",",sort keys %variants;
}
foreach my $variant (sort keys %variants)
{
next if ($wanted_variant ne $variant and $wanted_variant ne "ALL");
print "Building $variant\n";
my $dir = "build_$variant";
`rm -rf $dir`;
mkdir $dir;
`cp atari800core_chameleon.vhd $dir`;
`cp *pll*.* $dir`;
`cp *.vhdl $dir`;
`cp chameleon_*.* $dir`;
`cp zpu_rom.vhdl $dir`;
`cp atari800core.sdc $dir`;
`mkdir $dir/common`;
`mkdir $dir/common/a8core`;
`mkdir $dir/common/components`;
`mkdir $dir/common/zpu`;
`cp ../common/a8core/* ./$dir/common/a8core`;
`cp ../common/components/* ./$dir/common/components`;
`cp ../common/zpu/* ./$dir/common/zpu`;
chdir $dir;
`../makeqsf ../atari800core.qsf ./common/a8core ./common/components ./common/zpu`;
foreach my $key (sort keys %{$variants{$variant}})
{
my $val = $variants{$variant}->{$key};
`echo set_parameter -name $key $val >> atari800core.qsf`;
}
`quartus_sh --flow compile atari800core > build.log 2> build.err`;
`quartus_cpf --convert ../output_file.cof`;
chdir "..";
}

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