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Canyon Bomber: update to common, make it mostly synchronous

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still some async clock left, but stable
This commit is contained in:
Gyorgy Szombathelyi 2019-12-23 15:10:28 +01:00
parent 82b784ea17
commit 3ca7ee8ba5
25 changed files with 388 additions and 3892 deletions
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0
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/canyon_bomber.qpf → Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/Canyon_Bomber.qpf
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41
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/canyon_bomber.qsf → Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/Canyon_Bomber.qsf
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@ -41,31 +41,9 @@
# ========================
set_global_assignment -name ORIGINAL_QUARTUS_VERSION "13.0 SP1"
set_global_assignment -name PROJECT_CREATION_TIME_DATE "19:52:16 OCTOBER 10, 2017"
set_global_assignment -name LAST_QUARTUS_VERSION 13.1
set_global_assignment -name LAST_QUARTUS_VERSION "13.1 SP4.26"
set_global_assignment -name PROJECT_OUTPUT_DIRECTORY output_files
set_global_assignment -name PRE_FLOW_SCRIPT_FILE "quartus_sh:rtl/build_id.tcl"
set_global_assignment -name SYSTEMVERILOG_FILE rtl/canyon_bomber_mist.sv
set_global_assignment -name VHDL_FILE rtl/canyon_bomber.vhd
set_global_assignment -name VHDL_FILE rtl/whistle.vhd
set_global_assignment -name VHDL_FILE rtl/playfield.vhd
set_global_assignment -name VHDL_FILE rtl/motor.vhd
set_global_assignment -name VHDL_FILE rtl/motion.vhd
set_global_assignment -name VHDL_FILE rtl/cpu_mem.vhd
set_global_assignment -name VHDL_FILE rtl/sync.vhd
set_global_assignment -name VHDL_FILE rtl/sound.vhd
set_global_assignment -name VHDL_FILE rtl/spram.vhd
set_global_assignment -name VHDL_FILE rtl/sprom.vhd
set_global_assignment -name VHDL_FILE rtl/T65/T65_Pack.vhd
set_global_assignment -name VHDL_FILE rtl/T65/T65_MCode.vhd
set_global_assignment -name VHDL_FILE rtl/T65/T65_ALU.vhd
set_global_assignment -name VHDL_FILE rtl/T65/T65.vhd
set_global_assignment -name SYSTEMVERILOG_FILE rtl/video_mixer.sv
set_global_assignment -name SYSTEMVERILOG_FILE rtl/scandoubler.sv
set_global_assignment -name VERILOG_FILE rtl/pll.v
set_global_assignment -name SYSTEMVERILOG_FILE rtl/osd.sv
set_global_assignment -name SYSTEMVERILOG_FILE rtl/mist_io.sv
set_global_assignment -name SYSTEMVERILOG_FILE rtl/hq2x.sv
set_global_assignment -name SYSTEMVERILOG_FILE rtl/dac.sv
# Pin & Location Assignments
# ==========================
@ -135,7 +113,7 @@ set_global_assignment -name GENERATE_RBF_FILE ON
# SignalTap II Assignments
# ========================
set_global_assignment -name ENABLE_SIGNALTAP OFF
set_global_assignment -name USE_SIGNALTAP_FILE output_files/stp3.stp
set_global_assignment -name USE_SIGNALTAP_FILE output_files/cb.stp
# Power Estimation Assignments
# ============================
@ -199,4 +177,19 @@ set_global_assignment -name OUTPUT_IO_TIMING_FAR_END_VMEAS "HALF SIGNAL SWING" -
# end ENTITY(canyon_bomber_mist)
# ------------------------------
set_global_assignment -name SYSTEMVERILOG_FILE rtl/canyon_bomber_mist.sv
set_global_assignment -name VHDL_FILE rtl/canyon_bomber.vhd
set_global_assignment -name VHDL_FILE rtl/whistle.vhd
set_global_assignment -name VHDL_FILE rtl/playfield.vhd
set_global_assignment -name VHDL_FILE rtl/motor.vhd
set_global_assignment -name VHDL_FILE rtl/motion.vhd
set_global_assignment -name VHDL_FILE rtl/cpu_mem.vhd
set_global_assignment -name VHDL_FILE rtl/sync.vhd
set_global_assignment -name VHDL_FILE rtl/sound.vhd
set_global_assignment -name VHDL_FILE rtl/spram.vhd
set_global_assignment -name VHDL_FILE rtl/sprom.vhd
set_global_assignment -name VERILOG_FILE rtl/pll.v
set_global_assignment -name QIP_FILE ../../../common/CPU/T65/T65.qip
set_global_assignment -name QIP_FILE ../../../common/mist/mist.qip
set_global_assignment -name SIGNALTAP_FILE output_files/cb.stp
set_instance_assignment -name PARTITION_HIERARCHY root_partition -to | -section_id Top

128
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/Canyon_Bomber.sdc Normal file
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@ -0,0 +1,128 @@
## Generated SDC file "vectrex_MiST.out.sdc"
## Copyright (C) 1991-2013 Altera Corporation
## Your use of Altera Corporation's design tools, logic functions
## and other software and tools, and its AMPP partner logic
## functions, and any output files from any of the foregoing
## (including device programming or simulation files), and any
## associated documentation or information are expressly subject
## to the terms and conditions of the Altera Program License
## Subscription Agreement, Altera MegaCore Function License
## Agreement, or other applicable license agreement, including,
## without limitation, that your use is for the sole purpose of
## programming logic devices manufactured by Altera and sold by
## Altera or its authorized distributors. Please refer to the
## applicable agreement for further details.
## VENDOR "Altera"
## PROGRAM "Quartus II"
## VERSION "Version 13.1.0 Build 162 10/23/2013 SJ Web Edition"
## DATE "Sun Jun 24 12:53:00 2018"
##
## DEVICE "EP3C25E144C8"
##
# Clock constraints
# Automatically constrain PLL and other generated clocks
derive_pll_clocks -create_base_clocks
# Automatically calculate clock uncertainty to jitter and other effects.
derive_clock_uncertainty
# tsu/th constraints
# tco constraints
# tpd constraints
#**************************************************************
# Time Information
#**************************************************************
set_time_format -unit ns -decimal_places 3
#**************************************************************
# Create Clock
#**************************************************************
create_clock -name {SPI_SCK} -period 41.666 -waveform { 20.8 41.666 } [get_ports {SPI_SCK}]
set sys_clk "pll|altpll_component|auto_generated|pll1|clk[1]"
set vid_clk "pll|altpll_component|auto_generated|pll1|clk[0]"
#**************************************************************
# Create Generated Clock
#**************************************************************
#**************************************************************
# Set Clock Latency
#**************************************************************
#**************************************************************
# Set Clock Uncertainty
#**************************************************************
#**************************************************************
# Set Input Delay
#**************************************************************
set_input_delay -add_delay -clock_fall -clock [get_clocks {CLOCK_27}] 1.000 [get_ports {CLOCK_27}]
set_input_delay -add_delay -clock_fall -clock [get_clocks {SPI_SCK}] 1.000 [get_ports {CONF_DATA0}]
set_input_delay -add_delay -clock_fall -clock [get_clocks {SPI_SCK}] 1.000 [get_ports {SPI_DI}]
set_input_delay -add_delay -clock_fall -clock [get_clocks {SPI_SCK}] 1.000 [get_ports {SPI_SCK}]
set_input_delay -add_delay -clock_fall -clock [get_clocks {SPI_SCK}] 1.000 [get_ports {SPI_SS2}]
set_input_delay -add_delay -clock_fall -clock [get_clocks {SPI_SCK}] 1.000 [get_ports {SPI_SS3}]
#**************************************************************
# Set Output Delay
#**************************************************************
set_output_delay -add_delay -clock_fall -clock [get_clocks {SPI_SCK}] 1.000 [get_ports {SPI_DO}]
set_output_delay -add_delay -clock_fall -clock [get_clocks $sys_clk] 1.000 [get_ports {AUDIO_L}]
set_output_delay -add_delay -clock_fall -clock [get_clocks $sys_clk] 1.000 [get_ports {AUDIO_R}]
set_output_delay -add_delay -clock_fall -clock [get_clocks $sys_clk] 1.000 [get_ports {LED}]
set_output_delay -add_delay -clock_fall -clock [get_clocks $vid_clk] 1.000 [get_ports {VGA_*}]
#**************************************************************
# Set Clock Groups
#**************************************************************
set_clock_groups -asynchronous -group [get_clocks {SPI_SCK}] -group [get_clocks {pll|altpll_component|auto_generated|pll1|clk[*]}]
#**************************************************************
# Set False Path
#**************************************************************
#**************************************************************
# Set Multicycle Path
#**************************************************************
set_multicycle_path -to {VGA_*[*]} -setup 2
set_multicycle_path -to {VGA_*[*]} -hold 1
#**************************************************************
# Set Maximum Delay
#**************************************************************
#**************************************************************
# Set Minimum Delay
#**************************************************************
#**************************************************************
# Set Input Transition
#**************************************************************

564
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/T65/T65.vhd
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@ -1,564 +0,0 @@
-- ****
-- T65(b) core. In an effort to merge and maintain bug fixes ....
--
--
-- Ver 301 more merging
-- Ver 300 Bugfixes by ehenciak added, started tidyup *bust*
-- MikeJ March 2005
-- Latest version from www.fpgaarcade.com (original www.opencores.org)
--
-- ****
--
-- 65xx compatible microprocessor core
--
-- Version : 0246
--
-- Copyright (c) 2002 Daniel Wallner (jesus@opencores.org)
--
-- All rights reserved
--
-- Redistribution and use in source and synthezised forms, with or without
-- modification, are permitted provided that the following conditions are met:
--
-- Redistributions of source code must retain the above copyright notice,
-- this list of conditions and the following disclaimer.
--
-- Redistributions in synthesized form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in the
-- documentation and/or other materials provided with the distribution.
--
-- Neither the name of the author nor the names of other contributors may
-- be used to endorse or promote products derived from this software without
-- specific prior written permission.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
-- THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-- PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
-- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-- POSSIBILITY OF SUCH DAMAGE.
--
-- Please report bugs to the author, but before you do so, please
-- make sure that this is not a derivative work and that
-- you have the latest version of this file.
--
-- The latest version of this file can be found at:
-- http://www.opencores.org/cvsweb.shtml/t65/
--
-- Limitations :
--
-- 65C02 and 65C816 modes are incomplete
-- Undocumented instructions are not supported
-- Some interface signals behaves incorrect
--
-- File history :
--
-- 0246 : First release
--
library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.numeric_std.all;
use work.T65_Pack.all;
-- ehenciak 2-23-2005 : Added the enable signal so that one doesn't have to use
-- the ready signal to limit the CPU.
entity T65 is
port(
Mode : in std_logic_vector(1 downto 0); -- "00" => 6502, "01" => 65C02, "10" => 65C816
Res_n : in std_logic;
Enable : in std_logic;
Clk : in std_logic;
Rdy : in std_logic;
Abort_n : in std_logic;
IRQ_n : in std_logic;
NMI_n : in std_logic;
SO_n : in std_logic;
R_W_n : out std_logic;
Sync : out std_logic;
EF : out std_logic;
MF : out std_logic;
XF : out std_logic;
ML_n : out std_logic;
VP_n : out std_logic;
VDA : out std_logic;
VPA : out std_logic;
A : out std_logic_vector(23 downto 0);
DI : in std_logic_vector(7 downto 0);
DO : out std_logic_vector(7 downto 0)
);
end T65;
architecture rtl of T65 is
-- Registers
signal ABC, X, Y, D : std_logic_vector(15 downto 0);
signal P, AD, DL : std_logic_vector(7 downto 0) := x"00";
signal BAH : std_logic_vector(7 downto 0);
signal BAL : std_logic_vector(8 downto 0);
signal PBR : std_logic_vector(7 downto 0);
signal DBR : std_logic_vector(7 downto 0);
signal PC : unsigned(15 downto 0);
signal S : unsigned(15 downto 0);
signal EF_i : std_logic;
signal MF_i : std_logic;
signal XF_i : std_logic;
signal IR : std_logic_vector(7 downto 0);
signal MCycle : std_logic_vector(2 downto 0);
signal Mode_r : std_logic_vector(1 downto 0);
signal ALU_Op_r : std_logic_vector(3 downto 0);
signal Write_Data_r : std_logic_vector(2 downto 0);
signal Set_Addr_To_r : std_logic_vector(1 downto 0);
signal PCAdder : unsigned(8 downto 0);
signal RstCycle : std_logic;
signal IRQCycle : std_logic;
signal NMICycle : std_logic;
signal B_o : std_logic;
signal SO_n_o : std_logic;
signal IRQ_n_o : std_logic;
signal NMI_n_o : std_logic;
signal NMIAct : std_logic;
signal Break : std_logic;
-- ALU signals
signal BusA : std_logic_vector(7 downto 0);
signal BusA_r : std_logic_vector(7 downto 0);
signal BusB : std_logic_vector(7 downto 0);
signal ALU_Q : std_logic_vector(7 downto 0);
signal P_Out : std_logic_vector(7 downto 0);
-- Micro code outputs
signal LCycle : std_logic_vector(2 downto 0);
signal ALU_Op : std_logic_vector(3 downto 0);
signal Set_BusA_To : std_logic_vector(2 downto 0);
signal Set_Addr_To : std_logic_vector(1 downto 0);
signal Write_Data : std_logic_vector(2 downto 0);
signal Jump : std_logic_vector(1 downto 0);
signal BAAdd : std_logic_vector(1 downto 0);
signal BreakAtNA : std_logic;
signal ADAdd : std_logic;
signal AddY : std_logic;
signal PCAdd : std_logic;
signal Inc_S : std_logic;
signal Dec_S : std_logic;
signal LDA : std_logic;
signal LDP : std_logic;
signal LDX : std_logic;
signal LDY : std_logic;
signal LDS : std_logic;
signal LDDI : std_logic;
signal LDALU : std_logic;
signal LDAD : std_logic;
signal LDBAL : std_logic;
signal LDBAH : std_logic;
signal SaveP : std_logic;
signal Write : std_logic;
signal really_rdy : std_logic;
signal R_W_n_i : std_logic;
begin
-- ehenciak : gate Rdy with read/write to make an "OK, it's
-- really OK to stop the processor now if Rdy is
-- deasserted" signal
really_rdy <= Rdy or not(R_W_n_i);
-- ehenciak : Drive R_W_n_i off chip.
R_W_n <= R_W_n_i;
Sync <= '1' when MCycle = "000" else '0';
EF <= EF_i;
MF <= MF_i;
XF <= XF_i;
ML_n <= '0' when IR(7 downto 6) /= "10" and IR(2 downto 1) = "11" and MCycle(2 downto 1) /= "00" else '1';
VP_n <= '0' when IRQCycle = '1' and (MCycle = "101" or MCycle = "110") else '1';
VDA <= '1' when Set_Addr_To_r /= "00" else '0'; -- Incorrect !!!!!!!!!!!!
VPA <= '1' when Jump(1) = '0' else '0'; -- Incorrect !!!!!!!!!!!!
mcode : T65_MCode
port map(
Mode => Mode_r,
IR => IR,
MCycle => MCycle,
P => P,
LCycle => LCycle,
ALU_Op => ALU_Op,
Set_BusA_To => Set_BusA_To,
Set_Addr_To => Set_Addr_To,
Write_Data => Write_Data,
Jump => Jump,
BAAdd => BAAdd,
BreakAtNA => BreakAtNA,
ADAdd => ADAdd,
AddY => AddY,
PCAdd => PCAdd,
Inc_S => Inc_S,
Dec_S => Dec_S,
LDA => LDA,
LDP => LDP,
LDX => LDX,
LDY => LDY,
LDS => LDS,
LDDI => LDDI,
LDALU => LDALU,
LDAD => LDAD,
LDBAL => LDBAL,
LDBAH => LDBAH,
SaveP => SaveP,
Write => Write
);
alu : T65_ALU
port map(
Mode => Mode_r,
Op => ALU_Op_r,
BusA => BusA_r,
BusB => BusB,
P_In => P,
P_Out => P_Out,
Q => ALU_Q
);
process (Res_n, Clk)
begin
if Res_n = '0' then
PC <= (others => '0'); -- Program Counter
IR <= "00000000";
S <= (others => '0'); -- Dummy !!!!!!!!!!!!!!!!!!!!!
D <= (others => '0');
PBR <= (others => '0');
DBR <= (others => '0');
Mode_r <= (others => '0');
ALU_Op_r <= "1100";
Write_Data_r <= "000";
Set_Addr_To_r <= "00";
R_W_n_i <= '1';
EF_i <= '1';
MF_i <= '1';
XF_i <= '1';
elsif Clk'event and Clk = '1' then
if (Enable = '1') then
if (really_rdy = '1') then
R_W_n_i <= not Write or RstCycle;
D <= (others => '1'); -- Dummy
PBR <= (others => '1'); -- Dummy
DBR <= (others => '1'); -- Dummy
EF_i <= '0'; -- Dummy
MF_i <= '0'; -- Dummy
XF_i <= '0'; -- Dummy
if MCycle = "000" then
Mode_r <= Mode;
if IRQCycle = '0' and NMICycle = '0' then
PC <= PC + 1;
end if;
if IRQCycle = '1' or NMICycle = '1' then
IR <= "00000000";
else
IR <= DI;
end if;
end if;
ALU_Op_r <= ALU_Op;
Write_Data_r <= Write_Data;
if Break = '1' then
Set_Addr_To_r <= "00";
else
Set_Addr_To_r <= Set_Addr_To;
end if;
if Inc_S = '1' then
S <= S + 1;
end if;
if Dec_S = '1' and RstCycle = '0' then
S <= S - 1;
end if;
if LDS = '1' then
S(7 downto 0) <= unsigned(ALU_Q);
end if;
if IR = "00000000" and MCycle = "001" and IRQCycle = '0' and NMICycle = '0' then
PC <= PC + 1;
end if;
--
-- jump control logic
--
case Jump is
when "01" =>
PC <= PC + 1;
when "10" =>
PC <= unsigned(DI & DL);
when "11" =>
if PCAdder(8) = '1' then
if DL(7) = '0' then
PC(15 downto 8) <= PC(15 downto 8) + 1;
else
PC(15 downto 8) <= PC(15 downto 8) - 1;
end if;
end if;
PC(7 downto 0) <= PCAdder(7 downto 0);
when others => null;
end case;
end if;
end if;
end if;
end process;
PCAdder <= resize(PC(7 downto 0),9) + resize(unsigned(DL(7) & DL),9) when PCAdd = '1'
else "0" & PC(7 downto 0);
process (Clk)
begin
if Clk'event and Clk = '1' then
if (Enable = '1') then
if (really_rdy = '1') then
if MCycle = "000" then
if LDA = '1' then
ABC(7 downto 0) <= ALU_Q;
end if;
if LDX = '1' then
X(7 downto 0) <= ALU_Q;
end if;
if LDY = '1' then
Y(7 downto 0) <= ALU_Q;
end if;
if (LDA or LDX or LDY) = '1' then
P <= P_Out;
end if;
end if;
if SaveP = '1' then
P <= P_Out;
end if;
if LDP = '1' then
P <= ALU_Q;
end if;
if IR(4 downto 0) = "11000" then
case IR(7 downto 5) is
when "000" =>
P(Flag_C) <= '0';
when "001" =>
P(Flag_C) <= '1';
when "010" =>
P(Flag_I) <= '0';
when "011" =>
P(Flag_I) <= '1';
when "101" =>
P(Flag_V) <= '0';
when "110" =>
P(Flag_D) <= '0';
when "111" =>
P(Flag_D) <= '1';
when others =>
end case;
end if;
--if IR = "00000000" and MCycle = "011" and RstCycle = '0' and NMICycle = '0' and IRQCycle = '0' then
-- P(Flag_B) <= '1';
--end if;
--if IR = "00000000" and MCycle = "100" and RstCycle = '0' and (NMICycle = '1' or IRQCycle = '1') then
-- P(Flag_I) <= '1';
-- P(Flag_B) <= B_o;
--end if;
-- B=1 always on the 6502
P(Flag_B) <= '1';
if IR = "00000000" and RstCycle = '0' and (NMICycle = '1' or IRQCycle = '1') then
if MCycle = "011" then
-- B=0 in *copy* of P pushed onto the stack
P(Flag_B) <= '0';
elsif MCycle = "100" then
P(Flag_I) <= '1';
end if;
end if;
if SO_n_o = '1' and SO_n = '0' then
P(Flag_V) <= '1';
end if;
if RstCycle = '1' and Mode_r /= "00" then
P(Flag_1) <= '1';
P(Flag_D) <= '0';
P(Flag_I) <= '1';
end if;
P(Flag_1) <= '1';
B_o <= P(Flag_B);
SO_n_o <= SO_n;
IRQ_n_o <= IRQ_n;
NMI_n_o <= NMI_n;
end if;
end if;
end if;
end process;
---------------------------------------------------------------------------
--
-- Buses
--
---------------------------------------------------------------------------
process (Res_n, Clk)
begin
if Res_n = '0' then
BusA_r <= (others => '0');
BusB <= (others => '0');
AD <= (others => '0');
BAL <= (others => '0');
BAH <= (others => '0');
DL <= (others => '0');
elsif Clk'event and Clk = '1' then
if (Enable = '1') then
if (Rdy = '1') then
BusA_r <= BusA;
BusB <= DI;
case BAAdd is
when "01" =>
-- BA Inc
AD <= std_logic_vector(unsigned(AD) + 1);
BAL <= std_logic_vector(unsigned(BAL) + 1);
when "10" =>
-- BA Add
BAL <= std_logic_vector(resize(unsigned(BAL(7 downto 0)),9) + resize(unsigned(BusA),9));
when "11" =>
-- BA Adj
if BAL(8) = '1' then
BAH <= std_logic_vector(unsigned(BAH) + 1);
end if;
when others =>
end case;
-- ehenciak : modified to use Y register as well (bugfix)
if ADAdd = '1' then
if (AddY = '1') then
AD <= std_logic_vector(unsigned(AD) + unsigned(Y(7 downto 0)));
else
AD <= std_logic_vector(unsigned(AD) + unsigned(X(7 downto 0)));
end if;
end if;
if IR = "00000000" then
BAL <= (others => '1');
BAH <= (others => '1');
if RstCycle = '1' then
BAL(2 downto 0) <= "100";
elsif NMICycle = '1' then
BAL(2 downto 0) <= "010";
else
BAL(2 downto 0) <= "110";
end if;
if Set_addr_To_r = "11" then
BAL(0) <= '1';
end if;
end if;
if LDDI = '1' then
DL <= DI;
end if;
if LDALU = '1' then
DL <= ALU_Q;
end if;
if LDAD = '1' then
AD <= DI;
end if;
if LDBAL = '1' then
BAL(7 downto 0) <= DI;
end if;
if LDBAH = '1' then
BAH <= DI;
end if;
end if;
end if;
end if;
end process;
Break <= (BreakAtNA and not BAL(8)) or (PCAdd and not PCAdder(8));
with Set_BusA_To select
BusA <= DI when "000",
ABC(7 downto 0) when "001",
X(7 downto 0) when "010",
Y(7 downto 0) when "011",
std_logic_vector(S(7 downto 0)) when "100",
P when "101",
(others => '-') when others;
with Set_Addr_To_r select
A <= "0000000000000001" & std_logic_vector(S(7 downto 0)) when "01",
DBR & "00000000" & AD when "10",
"00000000" & BAH & BAL(7 downto 0) when "11",
PBR & std_logic_vector(PC(15 downto 8)) & std_logic_vector(PCAdder(7 downto 0)) when others;
with Write_Data_r select
DO <= DL when "000",
ABC(7 downto 0) when "001",
X(7 downto 0) when "010",
Y(7 downto 0) when "011",
std_logic_vector(S(7 downto 0)) when "100",
P when "101",
std_logic_vector(PC(7 downto 0)) when "110",
std_logic_vector(PC(15 downto 8)) when others;
-------------------------------------------------------------------------
--
-- Main state machine
--
-------------------------------------------------------------------------
process (Res_n, Clk)
begin
if Res_n = '0' then
MCycle <= "001";
RstCycle <= '1';
IRQCycle <= '0';
NMICycle <= '0';
NMIAct <= '0';
elsif Clk'event and Clk = '1' then
if (Enable = '1') then
if (really_rdy = '1') then
if MCycle = LCycle or Break = '1' then
MCycle <= "000";
RstCycle <= '0';
IRQCycle <= '0';
NMICycle <= '0';
if NMIAct = '1' then
NMICycle <= '1';
elsif IRQ_n_o = '0' and P(Flag_I) = '0' then
IRQCycle <= '1';
end if;
else
MCycle <= std_logic_vector(unsigned(MCycle) + 1);
end if;
if NMICycle = '1' then
NMIAct <= '0';
end if;
if NMI_n_o = '1' and NMI_n = '0' then
NMIAct <= '1';
end if;
end if;
end if;
end if;
end process;
end;

260
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/T65/T65_ALU.vhd
View File

@ -1,260 +0,0 @@
-- ****
-- T65(b) core. In an effort to merge and maintain bug fixes ....
--
--
-- Ver 300 Bugfixes by ehenciak added
-- MikeJ March 2005
-- Latest version from www.fpgaarcade.com (original www.opencores.org)
--
-- ****
--
-- 6502 compatible microprocessor core
--
-- Version : 0245
--
-- Copyright (c) 2002 Daniel Wallner (jesus@opencores.org)
--
-- All rights reserved
--
-- Redistribution and use in source and synthezised forms, with or without
-- modification, are permitted provided that the following conditions are met:
--
-- Redistributions of source code must retain the above copyright notice,
-- this list of conditions and the following disclaimer.
--
-- Redistributions in synthesized form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in the
-- documentation and/or other materials provided with the distribution.
--
-- Neither the name of the author nor the names of other contributors may
-- be used to endorse or promote products derived from this software without
-- specific prior written permission.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
-- THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-- PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
-- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-- POSSIBILITY OF SUCH DAMAGE.
--
-- Please report bugs to the author, but before you do so, please
-- make sure that this is not a derivative work and that
-- you have the latest version of this file.
--
-- The latest version of this file can be found at:
-- http://www.opencores.org/cvsweb.shtml/t65/
--
-- Limitations :
--
-- File history :
--
-- 0245 : First version
--
library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.numeric_std.all;
use work.T65_Pack.all;
entity T65_ALU is
port(
Mode : in std_logic_vector(1 downto 0); -- "00" => 6502, "01" => 65C02, "10" => 65816
Op : in std_logic_vector(3 downto 0);
BusA : in std_logic_vector(7 downto 0);
BusB : in std_logic_vector(7 downto 0);
P_In : in std_logic_vector(7 downto 0);
P_Out : out std_logic_vector(7 downto 0);
Q : out std_logic_vector(7 downto 0)
);
end T65_ALU;
architecture rtl of T65_ALU is
-- AddSub variables (temporary signals)
signal ADC_Z : std_logic;
signal ADC_C : std_logic;
signal ADC_V : std_logic;
signal ADC_N : std_logic;
signal ADC_Q : std_logic_vector(7 downto 0);
signal SBC_Z : std_logic;
signal SBC_C : std_logic;
signal SBC_V : std_logic;
signal SBC_N : std_logic;
signal SBC_Q : std_logic_vector(7 downto 0);
begin
process (P_In, BusA, BusB)
variable AL : unsigned(6 downto 0);
variable AH : unsigned(6 downto 0);
variable C : std_logic;
begin
AL := resize(unsigned(BusA(3 downto 0) & P_In(Flag_C)), 7) + resize(unsigned(BusB(3 downto 0) & "1"), 7);
AH := resize(unsigned(BusA(7 downto 4) & AL(5)), 7) + resize(unsigned(BusB(7 downto 4) & "1"), 7);
-- pragma translate_off
if is_x(std_logic_vector(AL)) then AL := "0000000"; end if;
if is_x(std_logic_vector(AH)) then AH := "0000000"; end if;
-- pragma translate_on
if AL(4 downto 1) = 0 and AH(4 downto 1) = 0 then
ADC_Z <= '1';
else
ADC_Z <= '0';
end if;
if AL(5 downto 1) > 9 and P_In(Flag_D) = '1' then
AL(6 downto 1) := AL(6 downto 1) + 6;
end if;
C := AL(6) or AL(5);
AH := resize(unsigned(BusA(7 downto 4) & C), 7) + resize(unsigned(BusB(7 downto 4) & "1"), 7);
ADC_N <= AH(4);
ADC_V <= (AH(4) xor BusA(7)) and not (BusA(7) xor BusB(7));
-- pragma translate_off
if is_x(std_logic_vector(AH)) then AH := "0000000"; end if;
-- pragma translate_on
if AH(5 downto 1) > 9 and P_In(Flag_D) = '1' then
AH(6 downto 1) := AH(6 downto 1) + 6;
end if;
ADC_C <= AH(6) or AH(5);
ADC_Q <= std_logic_vector(AH(4 downto 1) & AL(4 downto 1));
end process;
process (Op, P_In, BusA, BusB)
variable AL : unsigned(6 downto 0);
variable AH : unsigned(5 downto 0);
variable C : std_logic;
begin
C := P_In(Flag_C) or not Op(0);
AL := resize(unsigned(BusA(3 downto 0) & C), 7) - resize(unsigned(BusB(3 downto 0) & "1"), 6);
AH := resize(unsigned(BusA(7 downto 4) & "0"), 6) - resize(unsigned(BusB(7 downto 4) & AL(5)), 6);
-- pragma translate_off
if is_x(std_logic_vector(AL)) then AL := "0000000"; end if;
if is_x(std_logic_vector(AH)) then AH := "000000"; end if;
-- pragma translate_on
if AL(4 downto 1) = 0 and AH(4 downto 1) = 0 then
SBC_Z <= '1';
else
SBC_Z <= '0';
end if;
SBC_C <= not AH(5);
SBC_V <= (AH(4) xor BusA(7)) and (BusA(7) xor BusB(7));
SBC_N <= AH(4);
if P_In(Flag_D) = '1' then
if AL(5) = '1' then
AL(5 downto 1) := AL(5 downto 1) - 6;
end if;
AH := resize(unsigned(BusA(7 downto 4) & "0"), 6) - resize(unsigned(BusB(7 downto 4) & AL(6)), 6);
if AH(5) = '1' then
AH(5 downto 1) := AH(5 downto 1) - 6;
end if;
end if;
SBC_Q <= std_logic_vector(AH(4 downto 1) & AL(4 downto 1));
end process;
process (Op, P_In, BusA, BusB,
ADC_Z, ADC_C, ADC_V, ADC_N, ADC_Q,
SBC_Z, SBC_C, SBC_V, SBC_N, SBC_Q)
variable Q_t : std_logic_vector(7 downto 0);
begin
-- ORA, AND, EOR, ADC, NOP, LD, CMP, SBC
-- ASL, ROL, LSR, ROR, BIT, LD, DEC, INC
P_Out <= P_In;
Q_t := BusA;
case Op(3 downto 0) is
when "0000" =>
-- ORA
Q_t := BusA or BusB;
when "0001" =>
-- AND
Q_t := BusA and BusB;
when "0010" =>
-- EOR
Q_t := BusA xor BusB;
when "0011" =>
-- ADC
P_Out(Flag_V) <= ADC_V;
P_Out(Flag_C) <= ADC_C;
Q_t := ADC_Q;
when "0101" | "1101" =>
-- LDA
when "0110" =>
-- CMP
P_Out(Flag_C) <= SBC_C;
when "0111" =>
-- SBC
P_Out(Flag_V) <= SBC_V;
P_Out(Flag_C) <= SBC_C;
Q_t := SBC_Q;
when "1000" =>
-- ASL
Q_t := BusA(6 downto 0) & "0";
P_Out(Flag_C) <= BusA(7);
when "1001" =>
-- ROL
Q_t := BusA(6 downto 0) & P_In(Flag_C);
P_Out(Flag_C) <= BusA(7);
when "1010" =>
-- LSR
Q_t := "0" & BusA(7 downto 1);
P_Out(Flag_C) <= BusA(0);
when "1011" =>
-- ROR
Q_t := P_In(Flag_C) & BusA(7 downto 1);
P_Out(Flag_C) <= BusA(0);
when "1100" =>
-- BIT
P_Out(Flag_V) <= BusB(6);
when "1110" =>
-- DEC
Q_t := std_logic_vector(unsigned(BusA) - 1);
when "1111" =>
-- INC
Q_t := std_logic_vector(unsigned(BusA) + 1);
when others =>
end case;
case Op(3 downto 0) is
when "0011" =>
P_Out(Flag_N) <= ADC_N;
P_Out(Flag_Z) <= ADC_Z;
when "0110" | "0111" =>
P_Out(Flag_N) <= SBC_N;
P_Out(Flag_Z) <= SBC_Z;
when "0100" =>
when "1100" =>
P_Out(Flag_N) <= BusB(7);
if (BusA and BusB) = "00000000" then
P_Out(Flag_Z) <= '1';
else
P_Out(Flag_Z) <= '0';
end if;
when others =>
P_Out(Flag_N) <= Q_t(7);
if Q_t = "00000000" then
P_Out(Flag_Z) <= '1';
else
P_Out(Flag_Z) <= '0';
end if;
end case;
Q <= Q_t;
end process;
end;

1052
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/T65/T65_MCode.vhd
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File diff suppressed because it is too large Load Diff

117
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/T65/T65_Pack.vhd
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@ -1,117 +0,0 @@
-- ****
-- T65(b) core. In an effort to merge and maintain bug fixes ....
--
--
-- Ver 300 Bugfixes by ehenciak added
-- MikeJ March 2005
-- Latest version from www.fpgaarcade.com (original www.opencores.org)
--
-- ****
--
-- 65xx compatible microprocessor core
--
-- Version : 0246
--
-- Copyright (c) 2002 Daniel Wallner (jesus@opencores.org)
--
-- All rights reserved
--
-- Redistribution and use in source and synthezised forms, with or without
-- modification, are permitted provided that the following conditions are met:
--
-- Redistributions of source code must retain the above copyright notice,
-- this list of conditions and the following disclaimer.
--
-- Redistributions in synthesized form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in the
-- documentation and/or other materials provided with the distribution.
--
-- Neither the name of the author nor the names of other contributors may
-- be used to endorse or promote products derived from this software without
-- specific prior written permission.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
-- THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-- PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE
-- LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-- CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-- SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-- INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-- CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-- POSSIBILITY OF SUCH DAMAGE.
--
-- Please report bugs to the author, but before you do so, please
-- make sure that this is not a derivative work and that
-- you have the latest version of this file.
--
-- The latest version of this file can be found at:
-- http://www.opencores.org/cvsweb.shtml/t65/
--
-- Limitations :
--
-- File history :
--
library IEEE;
use IEEE.std_logic_1164.all;
package T65_Pack is
constant Flag_C : integer := 0;
constant Flag_Z : integer := 1;
constant Flag_I : integer := 2;
constant Flag_D : integer := 3;
constant Flag_B : integer := 4;
constant Flag_1 : integer := 5;
constant Flag_V : integer := 6;
constant Flag_N : integer := 7;
component T65_MCode
port(
Mode : in std_logic_vector(1 downto 0); -- "00" => 6502, "01" => 65C02, "10" => 65816
IR : in std_logic_vector(7 downto 0);
MCycle : in std_logic_vector(2 downto 0);
P : in std_logic_vector(7 downto 0);
LCycle : out std_logic_vector(2 downto 0);
ALU_Op : out std_logic_vector(3 downto 0);
Set_BusA_To : out std_logic_vector(2 downto 0); -- DI,A,X,Y,S,P
Set_Addr_To : out std_logic_vector(1 downto 0); -- PC Adder,S,AD,BA
Write_Data : out std_logic_vector(2 downto 0); -- DL,A,X,Y,S,P,PCL,PCH
Jump : out std_logic_vector(1 downto 0); -- PC,++,DIDL,Rel
BAAdd : out std_logic_vector(1 downto 0); -- None,DB Inc,BA Add,BA Adj
BreakAtNA : out std_logic;
ADAdd : out std_logic;
AddY : out std_logic;
PCAdd : out std_logic;
Inc_S : out std_logic;
Dec_S : out std_logic;
LDA : out std_logic;
LDP : out std_logic;
LDX : out std_logic;
LDY : out std_logic;
LDS : out std_logic;
LDDI : out std_logic;
LDALU : out std_logic;
LDAD : out std_logic;
LDBAL : out std_logic;
LDBAH : out std_logic;
SaveP : out std_logic;
Write : out std_logic
);
end component;
component T65_ALU
port(
Mode : in std_logic_vector(1 downto 0); -- "00" => 6502, "01" => 65C02, "10" => 65C816
Op : in std_logic_vector(3 downto 0);
BusA : in std_logic_vector(7 downto 0);
BusB : in std_logic_vector(7 downto 0);
P_In : in std_logic_vector(7 downto 0);
P_Out : out std_logic_vector(7 downto 0);
Q : out std_logic_vector(7 downto 0)
);
end component;
end;

2
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/build_id.sv
View File

@ -1,2 +0,0 @@
`define BUILD_DATE "190322"
`define BUILD_TIME "101029"

2
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/build_id.tcl
View File

@ -17,7 +17,7 @@ proc generateBuildID_Verilog {} {
set buildTime [ clock format [ clock seconds ] -format %H%M%S ]
# Create a Verilog file for output
set outputFileName "rtl/build_id.sv"
set outputFileName "rtl/build_id.v"
set outputFile [open $outputFileName "w"]
# Output the Verilog source

12
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/canyon_bomber.vhd
View File

@ -29,7 +29,7 @@ use IEEE.STD_LOGIC_UNSIGNED.all;
entity canyon_bomber is
port(
clk_12 : in std_logic; -- 50MHz input clock
clk_12 : in std_logic; -- 12MHz input clock
Reset_I : in std_logic; -- Reset button (Active low)
RGB : out std_logic_vector(7 downto 0);
Vblank_O : out std_logic;
@ -55,6 +55,7 @@ end canyon_bomber;
architecture rtl of canyon_bomber is
signal clk_6 : std_logic;
signal clk_6en : std_logic;
signal Ena_3k : std_logic;
signal phi1 : std_logic;
signal phi2 : std_logic;
@ -127,6 +128,7 @@ Vid_sync: entity work.synchronizer
port map(
clk_12 => clk_12,
clk_6 => clk_6,
clk_6en => clk_6en,
hcount => hcount,
vcount => vcount,
hsync => HSync,
@ -140,7 +142,8 @@ port map(
Background: entity work.playfield
port map(
clk6 => clk_6,
clk12 => clk_12,
clk6en => clk_6en,
display => display,
HCount => HCount,
VCount => VCount,
@ -158,8 +161,8 @@ port map(
Motion_Objects: entity work.motion
port map(
CLK6 => clk_6,
CLK12 => clk_12,
clk6en => clk_6en,
PHI2 => phi2,
DISPLAY => Display,
H256_s => H256_s,
@ -175,7 +178,6 @@ port map(
CPU: entity work.cpu_mem
port map(
Clk12 => clk_12,
Clk6 => clk_6,
Ena_3k => Ena_3k,
Reset_I => Reset_I,
Reset_n => reset_n,
@ -208,7 +210,7 @@ port map(
Sound: entity work.audio
port map(
Clk_6 => Clk_6,
Clk_12 => Clk_12,
Ena_3k => Ena_3k,
Reset_n => Reset_n,
Motor1_n => Motor1_n,

140
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/canyon_bomber_mist.sv
View File

@ -18,26 +18,25 @@ module canyon_bomber_mist(
input CLOCK_27
);
`include "rtl\build_id.sv"
`include "rtl\build_id.v"
localparam CONF_STR = {
"Cany.Bomb.;;",
"CANYON;;",
"O1,Self_Test,Off,On;",
"O34,Scanlines,Off,25%,50%,75%;",
"T6,Reset;",
"O5,Blend,Off,On;",
"T0,Reset;",
"V,v1.20.",`BUILD_DATE
};
assign LED = 1;
assign AUDIO_R = AUDIO_L;
wire clk_24, clk_12, clk_6;
wire clk_24, clk_12;
wire locked;
pll pll(
.inclk0(CLOCK_27),
.c0(clk_24),//24.192
.c1(clk_12),//12.096
.c2(clk_6),//6.048
.locked(locked)
);
@ -48,7 +47,9 @@ wire [11:0] kbjoy;
wire [7:0] joystick_0, joystick_1;
wire scandoublerD;
wire ypbpr;
wire [10:0] ps2_key;
wire key_strobe;
wire key_pressed;
wire [7:0] key_code;
wire [6:0] audio1, audio2;
wire [7:0] RGB;
wire vb, hb;
@ -56,10 +57,9 @@ wire blankn = ~(hb | vb);
wire hs, vs;
canyon_bomber canyon_bomber(
.clk_12(clk_12),
.Reset_I(~(status[0] | status[6] | buttons[1])),
.Reset_I(~(status[0] | buttons[1])),
.RGB(RGB),
.Vblank_O(vb),
.HBlank_O(hb),
@ -79,58 +79,62 @@ canyon_bomber canyon_bomber(
.Lamp2_O()
);
dac dacl(
.CLK(clk_24),
.RESET(0),
.DACin({audio1,audio2,2'b0}),
.DACout(AUDIO_L)
dac #(7) dacl(
.clk_i(clk_12),
.res_n_i(1'b1),
.dac_i(audio1),
.dac_o(AUDIO_L)
);
video_mixer video_mixer(
.clk_sys(clk_24),
.ce_pix(clk_6),
.ce_pix_actual(clk_6),
.SPI_SCK(SPI_SCK),
.SPI_SS3(SPI_SS3),
.SPI_DI(SPI_DI),
.R(blankn ? {RGB[7:2]} : 0),
.G(blankn ? {RGB[7:2]} : 0),
.B(blankn ? {RGB[7:2]} : 0),
.HSync(hs),
.VSync(vs),
.VGA_R(VGA_R),
.VGA_G(VGA_G),
.VGA_B(VGA_B),
.VGA_VS(VGA_VS),
.VGA_HS(VGA_HS),
.scandoublerD(scandoublerD),
.scanlines(scandoublerD ? 2'b00 : status[4:3]),
.ypbpr(ypbpr),
.ypbpr_full(1),
.line_start(0),
.mono(0)
dac #(7) dacr(
.clk_i(clk_12),
.res_n_i(1'b1),
.dac_i(audio2),
.dac_o(AUDIO_R)
);
mist_io #(
.STRLEN(($size(CONF_STR)>>3)))
mist_io(
.clk_sys (clk_24 ),
mist_video #(.SD_HCNT_WIDTH(10)) mist_video(
.clk_sys ( clk_24 ),
.SPI_SCK ( SPI_SCK ),
.SPI_SS3 ( SPI_SS3 ),
.SPI_DI ( SPI_DI ),
.R ( blankn ? RGB[7:2] : 0 ),
.G ( blankn ? RGB[7:2] : 0 ),
.B ( blankn ? RGB[7:2] : 0 ),
.HSync ( ~hs ),
.VSync ( ~vs ),
.VGA_R ( VGA_R ),
.VGA_G ( VGA_G ),
.VGA_B ( VGA_B ),
.VGA_VS ( VGA_VS ),
.VGA_HS ( VGA_HS ),
.ce_divider ( 1'b1 ),
.blend ( status[5] ),
.scandoubler_disable(scandoublerD ),
.scanlines ( status[4:3] ),
.ypbpr ( ypbpr )
);
user_io #(
.STRLEN(($size(CONF_STR)>>3)))
user_io(
.clk_sys (clk_12 ),
.conf_str (CONF_STR ),
.SPI_SCK (SPI_SCK ),
.CONF_DATA0 (CONF_DATA0 ),
.SPI_SS2 (SPI_SS2 ),
.SPI_DO (SPI_DO ),
.SPI_DI (SPI_DI ),
.SPI_CLK (SPI_SCK ),
.SPI_SS_IO (CONF_DATA0 ),
.SPI_MISO (SPI_DO ),
.SPI_MOSI (SPI_DI ),
.buttons (buttons ),
.switches (switches ),
.scandoublerD (scandoublerD ),
.switches (switches ),
.scandoubler_disable (scandoublerD ),
.ypbpr (ypbpr ),
.ps2_key (ps2_key ),
.joystick_0 (joystick_0 ),
.joystick_1 (joystick_1 ),
.key_strobe (key_strobe ),
.key_pressed (key_pressed ),
.key_code (key_code ),
.joystick_0 (joystick_0 ),
.joystick_1 (joystick_1 ),
.status (status )
);
);
reg btn_one_player = 0;
reg btn_two_players = 0;
@ -141,24 +145,20 @@ reg btn_up = 0;
reg btn_fire1 = 0;
reg btn_fire2 = 0;
reg btn_coin = 0;
wire pressed = ps2_key[9];
wire [7:0] code = ps2_key[7:0];
always @(posedge clk_24) begin
reg old_state;
old_state <= ps2_key[10];
if(old_state != ps2_key[10]) begin
case(code)
'h75: btn_up <= pressed; // up
'h72: btn_down <= pressed; // down
'h6B: btn_left <= pressed; // left
'h74: btn_right <= pressed; // right
'h76: btn_coin <= pressed; // ESC
'h05: btn_one_player <= pressed; // F1
'h06: btn_two_players <= pressed; // F2
'h14: btn_fire1 <= pressed; // ctrl
'h11: btn_fire1 <= pressed; // alt
'h29: btn_fire2 <= pressed; // Space
always @(posedge clk_12) begin
if(key_strobe) begin
case(key_code)
'h75: btn_up <= key_pressed; // up
'h72: btn_down <= key_pressed; // down
'h6B: btn_left <= key_pressed; // left
'h74: btn_right <= key_pressed; // right
'h76: btn_coin <= key_pressed; // ESC
'h05: btn_one_player <= key_pressed; // F1
'h06: btn_two_players <= key_pressed; // F2
'h14: btn_fire1 <= key_pressed; // ctrl
'h11: btn_fire1 <= key_pressed; // alt
'h29: btn_fire2 <= key_pressed; // Space
endcase
end
end

42
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/cpu_mem.vhd
View File

@ -21,7 +21,6 @@ use IEEE.STD_LOGIC_UNSIGNED.all;
entity CPU_mem is
port(
CLK12 : in std_logic;
CLK6 : in std_logic; -- 6MHz on schematic
Ena_3k : buffer std_logic; -- 3kHz clock enable, used by sound circuit
Reset_I : in std_logic;
Reset_n : buffer std_logic;
@ -74,6 +73,7 @@ signal H16 : std_logic;
signal H8 : std_logic;
signal H4 : std_logic;
signal V128_D : std_logic;
signal V128 : std_logic;
signal V64 : std_logic;
signal V32 : std_logic;
@ -130,7 +130,7 @@ signal K8_y : std_logic_vector(1 downto 0);
signal H7_y : std_logic_vector(1 downto 0);
signal ena_count : std_logic_vector(10 downto 0) := (others => '0');
signal ena_count : std_logic_vector(11 downto 0) := (others => '0');
signal ena_750k : std_logic;
@ -151,20 +151,21 @@ V64 <= VCount(6);
V128 <= VCount(7);
-- In the original hardware the CPU is clocked by a signal derived from 4H from the horizontal
-- line counter. This attemps to do things in a manner that is more proper for a synchronous
-- FPGA design using the main 6MHz clock in conjunction with a 750kHz clock enable for the CPU.
-- This also creates a 3kHz clock enable used by the sound module.
Clock_ena: process(Clk6)
Clock_ena: process(Clk12)
begin
if rising_edge(Clk6) then
if rising_edge(Clk12) then
ena_count <= ena_count + "1";
ena_750k <= '0';
if (ena_count(2 downto 0) = "000") then --100
if (ena_count(3 downto 0) = "0000") then --100
ena_750k <= '1'; -- 750 kHz
end if;
ena_3k <= '0';
if (ena_count(10 downto 0) = "00000000000") then
if (ena_count(11 downto 0) = "000000000000") then
ena_3k <= '1';
end if;
end if;
@ -172,18 +173,21 @@ end process;
-- Watchdog timer, counts pulses from V128 and resets CPU if not cleared by Timer_Reset_n
Watchdog: process(V128, WDog_Clear, Reset_I)
Watchdog: process(clk12, WDog_Clear, Reset_I)
begin
if Reset_I = '0' then
WDog_count <= "1111";
elsif Wdog_Clear = '1' then
WDog_count <= "0000";
elsif rising_edge(V128) then
WDog_count <= WDog_count + 1;
elsif rising_edge(clk12) then
V128_D <= V128;
if Wdog_Clear = '1' then
WDog_count <= "0000";
elsif V128_D = '0' and V128 = '1' then
WDog_count <= WDog_count + 1;
end if;
end if;
end process;
WDog_Clear <= (Test_n nand Timer_Reset_n);
Reset_n <= (not WDog_count(3));
Reset_n <= not WDog_count(3);
CPU: entity work.T65
@ -191,7 +195,7 @@ port map(
Enable => ena_750k,
Mode => "00",
Res_n => reset_n,
Clk => Clk6,
Clk => Clk12,
Rdy => '1',
Abort_n => '1',
IRQ_n => '1',
@ -247,7 +251,7 @@ generic map(
widthad_a => 10,
width_a => 4)
port map(
clock => clk6,
clock => clk12,
address => Adr(9 downto 0),
q => rom3_dout(3 downto 0)
);
@ -258,7 +262,7 @@ generic map(
widthad_a => 10,
width_a => 4)
port map(
clock => clk6,
clock => clk12,
address => Adr(9 downto 0),
q => rom3_dout(7 downto 4)
);
@ -269,7 +273,7 @@ generic map(
widthad_a => 11,
width_a => 8)
port map(
clock => clk6,
clock => clk12,
address => Adr(10 downto 0),
q => rom4_dout
);
@ -284,7 +288,7 @@ generic map(
addr_width_g => 8,
data_width_g => 8)
port map(
clock => Clk6,
clock => Clk12,
address => Adr(7 downto 0),
wren => (not write_n) and (not WRAM_n),
data => CPUDout,
@ -342,7 +346,7 @@ Explode_n <= '0' when Write_n = '0' and Adr(13 downto 9) = "00010" and Adr(8) =
Timer_Reset_n <= '0' when Write_n = '0' and Adr(13 downto 9) = "00010" and Adr(8) = '1' and Adr(0) = '1' else '1';
-- 9334 addressable latch at C7, this drives outputs
C7: process(clk6, Reset_n, Adr)
C7: process(clk12, Reset_n, Adr)
begin
if (Reset_n = '0') then
Whistle1 <= '0'; -- Shell whistle sound 1
@ -351,7 +355,7 @@ begin
Player2Lamp <= '0'; -- Player 2 Start LED
Attract1 <= '0'; -- Attract1 signal
Attract2 <= '0'; -- Attract2 signal
elsif rising_edge(clk6) then
elsif rising_edge(clk12) then
-- This next line models part of the address decoder that enables this latch
if (Write_n = '0' and ADR(13 downto 9) = "00011") then
case Adr(8 downto 7) & Adr(0) is

33
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/dac.sv
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@ -1,33 +0,0 @@
//
// PWM DAC
//
// MSBI is the highest bit number. NOT amount of bits!
//
module dac #(parameter MSBI=15, parameter INV=1'b1)
(
output reg DACout, //Average Output feeding analog lowpass
input [MSBI:0] DACin, //DAC input (excess 2**MSBI)
input CLK,
input RESET
);
reg [MSBI+2:0] DeltaAdder; //Output of Delta Adder
reg [MSBI+2:0] SigmaAdder; //Output of Sigma Adder
reg [MSBI+2:0] SigmaLatch; //Latches output of Sigma Adder
reg [MSBI+2:0] DeltaB; //B input of Delta Adder
always @(*) DeltaB = {SigmaLatch[MSBI+2], SigmaLatch[MSBI+2]} << (MSBI+1);
always @(*) DeltaAdder = DACin + DeltaB;
always @(*) SigmaAdder = DeltaAdder + SigmaLatch;
always @(posedge CLK or posedge RESET) begin
if(RESET) begin
SigmaLatch <= 1'b1 << (MSBI+1);
DACout <= INV;
end else begin
SigmaLatch <= SigmaAdder;
DACout <= SigmaLatch[MSBI+2] ^ INV;
end
end
endmodule

454
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/hq2x.sv
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@ -1,454 +0,0 @@
//
//
// Copyright (c) 2012-2013 Ludvig Strigeus
// Copyright (c) 2017 Sorgelig
//
// This program is GPL Licensed. See COPYING for the full license.
//
//
////////////////////////////////////////////////////////////////////////////////////////////////////////
// synopsys translate_off
`timescale 1 ps / 1 ps
// synopsys translate_on
`define BITS_TO_FIT(N) ( \
N <= 2 ? 0 : \
N <= 4 ? 1 : \
N <= 8 ? 2 : \
N <= 16 ? 3 : \
N <= 32 ? 4 : \
N <= 64 ? 5 : \
N <= 128 ? 6 : \
N <= 256 ? 7 : \
N <= 512 ? 8 : \
N <=1024 ? 9 : 10 )
module hq2x_in #(parameter LENGTH, parameter DWIDTH)
(
input clk,
input [AWIDTH:0] rdaddr,
input rdbuf,
output[DWIDTH:0] q,
input [AWIDTH:0] wraddr,
input wrbuf,
input [DWIDTH:0] data,
input wren
);
localparam AWIDTH = `BITS_TO_FIT(LENGTH);
wire [DWIDTH:0] out[2];
assign q = out[rdbuf];
hq2x_buf #(.NUMWORDS(LENGTH), .AWIDTH(AWIDTH), .DWIDTH(DWIDTH)) buf0(clk,data,rdaddr,wraddr,wren && (wrbuf == 0),out[0]);
hq2x_buf #(.NUMWORDS(LENGTH), .AWIDTH(AWIDTH), .DWIDTH(DWIDTH)) buf1(clk,data,rdaddr,wraddr,wren && (wrbuf == 1),out[1]);
endmodule
module hq2x_out #(parameter LENGTH, parameter DWIDTH)
(
input clk,
input [AWIDTH:0] rdaddr,
input [1:0] rdbuf,
output[DWIDTH:0] q,
input [AWIDTH:0] wraddr,
input [1:0] wrbuf,
input [DWIDTH:0] data,
input wren
);
localparam AWIDTH = `BITS_TO_FIT(LENGTH*2);
wire [DWIDTH:0] out[4];
assign q = out[rdbuf];
hq2x_buf #(.NUMWORDS(LENGTH*2), .AWIDTH(AWIDTH), .DWIDTH(DWIDTH)) buf0(clk,data,rdaddr,wraddr,wren && (wrbuf == 0),out[0]);
hq2x_buf #(.NUMWORDS(LENGTH*2), .AWIDTH(AWIDTH), .DWIDTH(DWIDTH)) buf1(clk,data,rdaddr,wraddr,wren && (wrbuf == 1),out[1]);
hq2x_buf #(.NUMWORDS(LENGTH*2), .AWIDTH(AWIDTH), .DWIDTH(DWIDTH)) buf2(clk,data,rdaddr,wraddr,wren && (wrbuf == 2),out[2]);
hq2x_buf #(.NUMWORDS(LENGTH*2), .AWIDTH(AWIDTH), .DWIDTH(DWIDTH)) buf3(clk,data,rdaddr,wraddr,wren && (wrbuf == 3),out[3]);
endmodule
module hq2x_buf #(parameter NUMWORDS, parameter AWIDTH, parameter DWIDTH)
(
input clock,
input [DWIDTH:0] data,
input [AWIDTH:0] rdaddress,
input [AWIDTH:0] wraddress,
input wren,
output [DWIDTH:0] q
);
altsyncram altsyncram_component (
.address_a (wraddress),
.clock0 (clock),
.data_a (data),
.wren_a (wren),
.address_b (rdaddress),
.q_b(q),
.aclr0 (1'b0),
.aclr1 (1'b0),
.addressstall_a (1'b0),
.addressstall_b (1'b0),
.byteena_a (1'b1),
.byteena_b (1'b1),
.clock1 (1'b1),
.clocken0 (1'b1),
.clocken1 (1'b1),
.clocken2 (1'b1),
.clocken3 (1'b1),
.data_b ({(DWIDTH+1){1'b1}}),
.eccstatus (),
.q_a (),
.rden_a (1'b1),
.rden_b (1'b1),
.wren_b (1'b0));
defparam
altsyncram_component.address_aclr_b = "NONE",
altsyncram_component.address_reg_b = "CLOCK0",
altsyncram_component.clock_enable_input_a = "BYPASS",
altsyncram_component.clock_enable_input_b = "BYPASS",
altsyncram_component.clock_enable_output_b = "BYPASS",
altsyncram_component.intended_device_family = "Cyclone III",
altsyncram_component.lpm_type = "altsyncram",
altsyncram_component.numwords_a = NUMWORDS,
altsyncram_component.numwords_b = NUMWORDS,
altsyncram_component.operation_mode = "DUAL_PORT",
altsyncram_component.outdata_aclr_b = "NONE",
altsyncram_component.outdata_reg_b = "UNREGISTERED",
altsyncram_component.power_up_uninitialized = "FALSE",
altsyncram_component.read_during_write_mode_mixed_ports = "DONT_CARE",
altsyncram_component.widthad_a = AWIDTH+1,
altsyncram_component.widthad_b = AWIDTH+1,
altsyncram_component.width_a = DWIDTH+1,
altsyncram_component.width_b = DWIDTH+1,
altsyncram_component.width_byteena_a = 1;
endmodule
////////////////////////////////////////////////////////////////////////////////////////////////////////
module DiffCheck
(
input [17:0] rgb1,
input [17:0] rgb2,
output result
);
wire [5:0] r = rgb1[5:1] - rgb2[5:1];
wire [5:0] g = rgb1[11:7] - rgb2[11:7];
wire [5:0] b = rgb1[17:13] - rgb2[17:13];
wire [6:0] t = $signed(r) + $signed(b);
wire [6:0] gx = {g[5], g};
wire [7:0] y = $signed(t) + $signed(gx);
wire [6:0] u = $signed(r) - $signed(b);
wire [7:0] v = $signed({g, 1'b0}) - $signed(t);
// if y is inside (-24..24)
wire y_inside = (y < 8'h18 || y >= 8'he8);
// if u is inside (-4, 4)
wire u_inside = (u < 7'h4 || u >= 7'h7c);
// if v is inside (-6, 6)
wire v_inside = (v < 8'h6 || v >= 8'hfA);
assign result = !(y_inside && u_inside && v_inside);
endmodule
module InnerBlend
(
input [8:0] Op,
input [5:0] A,
input [5:0] B,
input [5:0] C,
output [5:0] O
);
function [8:0] mul6x3;
input [5:0] op1;
input [2:0] op2;
begin
mul6x3 = 9'd0;
if(op2[0]) mul6x3 = mul6x3 + op1;
if(op2[1]) mul6x3 = mul6x3 + {op1, 1'b0};
if(op2[2]) mul6x3 = mul6x3 + {op1, 2'b00};
end
endfunction
wire OpOnes = Op[4];
wire [8:0] Amul = mul6x3(A, Op[7:5]);
wire [8:0] Bmul = mul6x3(B, {Op[3:2], 1'b0});
wire [8:0] Cmul = mul6x3(C, {Op[1:0], 1'b0});
wire [8:0] At = Amul;
wire [8:0] Bt = (OpOnes == 0) ? Bmul : {3'b0, B};
wire [8:0] Ct = (OpOnes == 0) ? Cmul : {3'b0, C};
wire [9:0] Res = {At, 1'b0} + Bt + Ct;
assign O = Op[8] ? A : Res[9:4];
endmodule
module Blend
(
input [5:0] rule,
input disable_hq2x,
input [17:0] E,
input [17:0] A,
input [17:0] B,
input [17:0] D,
input [17:0] F,
input [17:0] H,
output [17:0] Result
);
reg [1:0] input_ctrl;
reg [8:0] op;
localparam BLEND0 = 9'b1_xxx_x_xx_xx; // 0: A
localparam BLEND1 = 9'b0_110_0_10_00; // 1: (A * 12 + B * 4) >> 4
localparam BLEND2 = 9'b0_100_0_10_10; // 2: (A * 8 + B * 4 + C * 4) >> 4
localparam BLEND3 = 9'b0_101_0_10_01; // 3: (A * 10 + B * 4 + C * 2) >> 4
localparam BLEND4 = 9'b0_110_0_01_01; // 4: (A * 12 + B * 2 + C * 2) >> 4
localparam BLEND5 = 9'b0_010_0_11_11; // 5: (A * 4 + (B + C) * 6) >> 4
localparam BLEND6 = 9'b0_111_1_xx_xx; // 6: (A * 14 + B + C) >> 4
localparam AB = 2'b00;
localparam AD = 2'b01;
localparam DB = 2'b10;
localparam BD = 2'b11;
wire is_diff;
DiffCheck diff_checker(rule[1] ? B : H, rule[0] ? D : F, is_diff);
always @* begin
case({!is_diff, rule[5:2]})
1,17: {op, input_ctrl} = {BLEND1, AB};
2,18: {op, input_ctrl} = {BLEND1, DB};
3,19: {op, input_ctrl} = {BLEND1, BD};
4,20: {op, input_ctrl} = {BLEND2, DB};
5,21: {op, input_ctrl} = {BLEND2, AB};
6,22: {op, input_ctrl} = {BLEND2, AD};
8: {op, input_ctrl} = {BLEND0, 2'bxx};
9: {op, input_ctrl} = {BLEND0, 2'bxx};
10: {op, input_ctrl} = {BLEND0, 2'bxx};
11: {op, input_ctrl} = {BLEND1, AB};
12: {op, input_ctrl} = {BLEND1, AB};
13: {op, input_ctrl} = {BLEND1, AB};
14: {op, input_ctrl} = {BLEND1, DB};
15: {op, input_ctrl} = {BLEND1, BD};
24: {op, input_ctrl} = {BLEND2, DB};
25: {op, input_ctrl} = {BLEND5, DB};
26: {op, input_ctrl} = {BLEND6, DB};
27: {op, input_ctrl} = {BLEND2, DB};
28: {op, input_ctrl} = {BLEND4, DB};
29: {op, input_ctrl} = {BLEND5, DB};
30: {op, input_ctrl} = {BLEND3, BD};
31: {op, input_ctrl} = {BLEND3, DB};
default: {op, input_ctrl} = 11'bx;
endcase
// Setting op[8] effectively disables HQ2X because blend will always return E.
if (disable_hq2x) op[8] = 1;
end
// Generate inputs to the inner blender. Valid combinations.
// 00: E A B
// 01: E A D
// 10: E D B
// 11: E B D
wire [17:0] Input1 = E;
wire [17:0] Input2 = !input_ctrl[1] ? A :
!input_ctrl[0] ? D : B;
wire [17:0] Input3 = !input_ctrl[0] ? B : D;
InnerBlend inner_blend1(op, Input1[5:0], Input2[5:0], Input3[5:0], Result[5:0]);
InnerBlend inner_blend2(op, Input1[11:6], Input2[11:6], Input3[11:6], Result[11:6]);
InnerBlend inner_blend3(op, Input1[17:12], Input2[17:12], Input3[17:12], Result[17:12]);
endmodule
////////////////////////////////////////////////////////////////////////////////////////////////////
module Hq2x #(parameter LENGTH, parameter HALF_DEPTH)
(
input clk,
input ce_x4,
input [DWIDTH:0] inputpixel,
input mono,
input disable_hq2x,
input reset_frame,
input reset_line,
input [1:0] read_y,
input [AWIDTH+1:0] read_x,
output [DWIDTH:0] outpixel
);
localparam AWIDTH = `BITS_TO_FIT(LENGTH);
localparam DWIDTH = HALF_DEPTH ? 8 : 17;
wire [5:0] hqTable[256] = '{
19, 19, 26, 11, 19, 19, 26, 11, 23, 15, 47, 35, 23, 15, 55, 39,
19, 19, 26, 58, 19, 19, 26, 58, 23, 15, 35, 35, 23, 15, 7, 35,
19, 19, 26, 11, 19, 19, 26, 11, 23, 15, 55, 39, 23, 15, 51, 43,
19, 19, 26, 58, 19, 19, 26, 58, 23, 15, 51, 35, 23, 15, 7, 43,
19, 19, 26, 11, 19, 19, 26, 11, 23, 61, 35, 35, 23, 61, 51, 35,
19, 19, 26, 11, 19, 19, 26, 11, 23, 15, 51, 35, 23, 15, 51, 35,
19, 19, 26, 11, 19, 19, 26, 11, 23, 61, 7, 35, 23, 61, 7, 43,
19, 19, 26, 11, 19, 19, 26, 58, 23, 15, 51, 35, 23, 61, 7, 43,
19, 19, 26, 11, 19, 19, 26, 11, 23, 15, 47, 35, 23, 15, 55, 39,
19, 19, 26, 11, 19, 19, 26, 11, 23, 15, 51, 35, 23, 15, 51, 35,
19, 19, 26, 11, 19, 19, 26, 11, 23, 15, 55, 39, 23, 15, 51, 43,
19, 19, 26, 11, 19, 19, 26, 11, 23, 15, 51, 39, 23, 15, 7, 43,
19, 19, 26, 11, 19, 19, 26, 11, 23, 15, 51, 35, 23, 15, 51, 39,
19, 19, 26, 11, 19, 19, 26, 11, 23, 15, 51, 35, 23, 15, 7, 35,
19, 19, 26, 11, 19, 19, 26, 11, 23, 15, 51, 35, 23, 15, 7, 43,
19, 19, 26, 11, 19, 19, 26, 11, 23, 15, 7, 35, 23, 15, 7, 43
};
reg [17:0] Prev0, Prev1, Prev2, Curr0, Curr1, Next0, Next1, Next2;
reg [17:0] A, B, D, F, G, H;
reg [7:0] pattern, nextpatt;
reg [1:0] i;
reg [7:0] y;
wire curbuf = y[0];
reg prevbuf = 0;
wire iobuf = !curbuf;
wire diff0, diff1;
DiffCheck diffcheck0(Curr1, (i == 0) ? Prev0 : (i == 1) ? Curr0 : (i == 2) ? Prev2 : Next1, diff0);
DiffCheck diffcheck1(Curr1, (i == 0) ? Prev1 : (i == 1) ? Next0 : (i == 2) ? Curr2 : Next2, diff1);
wire [7:0] new_pattern = {diff1, diff0, pattern[7:2]};
wire [17:0] X = (i == 0) ? A : (i == 1) ? Prev1 : (i == 2) ? Next1 : G;
wire [17:0] blend_result;
Blend blender(hqTable[nextpatt], disable_hq2x, Curr0, X, B, D, F, H, blend_result);
reg Curr2_addr1;
reg [AWIDTH:0] Curr2_addr2;
wire [17:0] Curr2 = HALF_DEPTH ? h2rgb(Curr2tmp) : Curr2tmp;
wire [DWIDTH:0] Curr2tmp;
reg [AWIDTH:0] wrin_addr2;
reg [DWIDTH:0] wrpix;
reg wrin_en;
function [17:0] h2rgb;
input [8:0] v;
begin
h2rgb = mono ? {v[5:3],v[2:0], v[5:3],v[2:0], v[5:3],v[2:0]} : {v[8:6],v[8:6],v[5:3],v[5:3],v[2:0],v[2:0]};
end
endfunction
function [8:0] rgb2h;
input [17:0] v;
begin
rgb2h = mono ? {3'b000, v[17:15], v[14:12]} : {v[17:15], v[11:9], v[5:3]};
end
endfunction
hq2x_in #(.LENGTH(LENGTH), .DWIDTH(DWIDTH)) hq2x_in
(
.clk(clk),
.rdaddr(Curr2_addr2),
.rdbuf(Curr2_addr1),
.q(Curr2tmp),
.wraddr(wrin_addr2),
.wrbuf(iobuf),
.data(wrpix),
.wren(wrin_en)
);
reg [1:0] wrout_addr1;
reg [AWIDTH+1:0] wrout_addr2;
reg wrout_en;
reg [DWIDTH:0] wrdata;
hq2x_out #(.LENGTH(LENGTH), .DWIDTH(DWIDTH)) hq2x_out
(
.clk(clk),
.rdaddr(read_x),
.rdbuf(read_y),
.q(outpixel),
.wraddr(wrout_addr2),
.wrbuf(wrout_addr1),
.data(wrdata),
.wren(wrout_en)
);
always @(posedge clk) begin
reg [AWIDTH:0] offs;
reg old_reset_line;
reg old_reset_frame;
wrout_en <= 0;
wrin_en <= 0;
if(ce_x4) begin
pattern <= new_pattern;
if(~&offs) begin
if (i == 0) begin
Curr2_addr1 <= prevbuf;
Curr2_addr2 <= offs;
end
if (i == 1) begin
Prev2 <= Curr2;
Curr2_addr1 <= curbuf;
Curr2_addr2 <= offs;
end
if (i == 2) begin
Next2 <= HALF_DEPTH ? h2rgb(inputpixel) : inputpixel;
wrpix <= inputpixel;
wrin_addr2 <= offs;
wrin_en <= 1;
end
if (i == 3) begin
offs <= offs + 1'd1;
end
if(HALF_DEPTH) wrdata <= rgb2h(blend_result);
else wrdata <= blend_result;
wrout_addr1 <= {curbuf, i[1]};
wrout_addr2 <= {offs, i[1]^i[0]};
wrout_en <= 1;
end
if(i==3) begin
nextpatt <= {new_pattern[7:6], new_pattern[3], new_pattern[5], new_pattern[2], new_pattern[4], new_pattern[1:0]};
{A, G} <= {Prev0, Next0};
{B, F, H, D} <= {Prev1, Curr2, Next1, Curr0};
{Prev0, Prev1} <= {Prev1, Prev2};
{Curr0, Curr1} <= {Curr1, Curr2};
{Next0, Next1} <= {Next1, Next2};
end else begin
nextpatt <= {nextpatt[5], nextpatt[3], nextpatt[0], nextpatt[6], nextpatt[1], nextpatt[7], nextpatt[4], nextpatt[2]};
{B, F, H, D} <= {F, H, D, B};
end
i <= i + 1'b1;
if(old_reset_line && ~reset_line) begin
old_reset_frame <= reset_frame;
offs <= 0;
i <= 0;
y <= y + 1'd1;
prevbuf <= curbuf;
if(old_reset_frame & ~reset_frame) begin
y <= 0;
prevbuf <= 0;
end
end
old_reset_line <= reset_line;
end
end
endmodule // Hq2x

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Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/mist_io.sv
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@ -1,530 +0,0 @@
//
// mist_io.v
//
// mist_io for the MiST board
// http://code.google.com/p/mist-board/
//
// Copyright (c) 2014 Till Harbaum <till@harbaum.org>
// Copyright (c) 2015-2017 Sorgelig
//
// This source file is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This source file is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
///////////////////////////////////////////////////////////////////////
//
// Use buffer to access SD card. It's time-critical part.
// Made module synchroneous with 2 clock domains: clk_sys and SPI_SCK
// (Sorgelig)
//
// for synchronous projects default value for PS2DIV is fine for any frequency of system clock.
// clk_ps2 = clk_sys/(PS2DIV*2)
//
module mist_io #(parameter STRLEN=0, parameter PS2DIV=100)
(
// parameter STRLEN and the actual length of conf_str have to match
input [(8*STRLEN)-1:0] conf_str,
// Global clock. It should be around 100MHz (higher is better).
input clk_sys,
// Global SPI clock from ARM. 24MHz
input SPI_SCK,
input CONF_DATA0,
input SPI_SS2,
output SPI_DO,
input SPI_DI,
output reg [7:0] joystick_0,
output reg [7:0] joystick_1,
// output reg [31:0] joystick_2,
// output reg [31:0] joystick_3,
// output reg [31:0] joystick_4,
output reg [15:0] joystick_analog_0,
output reg [15:0] joystick_analog_1,
output [1:0] buttons,
output [1:0] switches,
output scandoublerD,
output ypbpr,
output reg [31:0] status,
// SD config
input sd_conf,
input sd_sdhc,
output [1:0] img_mounted, // signaling that new image has been mounted
output reg [31:0] img_size, // size of image in bytes
// SD block level access
input [31:0] sd_lba,
input [1:0] sd_rd,
input [1:0] sd_wr,
output reg sd_ack,
output reg sd_ack_conf,
// SD byte level access. Signals for 2-PORT altsyncram.
output reg [8:0] sd_buff_addr,
output reg [7:0] sd_buff_dout,
input [7:0] sd_buff_din,
output reg sd_buff_wr,
// ps2 keyboard emulation
output ps2_kbd_clk,
output reg ps2_kbd_data,
output ps2_mouse_clk,
output reg ps2_mouse_data,
// ps2 alternative interface.
// [8] - extended, [9] - pressed, [10] - toggles with every press/release
output reg [10:0] ps2_key = 0,
// [24] - toggles with every event
output reg [24:0] ps2_mouse = 0,
// ARM -> FPGA download
input ioctl_ce,
output reg ioctl_download = 0, // signal indicating an active download
output reg [7:0] ioctl_index, // menu index used to upload the file
output reg ioctl_wr = 0,
output reg [24:0] ioctl_addr,
output reg [7:0] ioctl_dout
);
reg [7:0] but_sw;
reg [2:0] stick_idx;
reg [1:0] mount_strobe = 0;
assign img_mounted = mount_strobe;
assign buttons = but_sw[1:0];
assign switches = but_sw[3:2];
assign scandoublerD = but_sw[4];
assign ypbpr = but_sw[5];
// this variant of user_io is for 8 bit cores (type == a4) only
wire [7:0] core_type = 8'ha4;
// command byte read by the io controller
wire drive_sel = sd_rd[1] | sd_wr[1];
wire [7:0] sd_cmd = { 4'h6, sd_conf, sd_sdhc, sd_wr[drive_sel], sd_rd[drive_sel] };
reg [7:0] cmd;
reg [2:0] bit_cnt; // counts bits 0-7 0-7 ...
reg [9:0] byte_cnt; // counts bytes
reg spi_do;
assign SPI_DO = CONF_DATA0 ? 1'bZ : spi_do;
reg [7:0] spi_data_out;
// SPI transmitter
always@(negedge SPI_SCK) spi_do <= spi_data_out[~bit_cnt];
reg [7:0] spi_data_in;
reg spi_data_ready = 0;
// SPI receiver
always@(posedge SPI_SCK or posedge CONF_DATA0) begin
reg [6:0] sbuf;
reg [31:0] sd_lba_r;
reg drive_sel_r;
if(CONF_DATA0) begin
bit_cnt <= 0;
byte_cnt <= 0;
spi_data_out <= core_type;
end
else
begin
bit_cnt <= bit_cnt + 1'd1;
sbuf <= {sbuf[5:0], SPI_DI};
// finished reading command byte
if(bit_cnt == 7) begin
if(!byte_cnt) cmd <= {sbuf, SPI_DI};
spi_data_in <= {sbuf, SPI_DI};
spi_data_ready <= ~spi_data_ready;
if(~&byte_cnt) byte_cnt <= byte_cnt + 8'd1;
spi_data_out <= 0;
case({(!byte_cnt) ? {sbuf, SPI_DI} : cmd})
// reading config string
8'h14: if(byte_cnt < STRLEN) spi_data_out <= conf_str[(STRLEN - byte_cnt - 1)<<3 +:8];
// reading sd card status
8'h16: if(byte_cnt == 0) begin
spi_data_out <= sd_cmd;
sd_lba_r <= sd_lba;
drive_sel_r <= drive_sel;
end else if (byte_cnt == 1) begin
spi_data_out <= drive_sel_r;
end else if(byte_cnt < 6) spi_data_out <= sd_lba_r[(5-byte_cnt)<<3 +:8];
// reading sd card write data
8'h18: spi_data_out <= sd_buff_din;
endcase
end
end
end
reg [31:0] ps2_key_raw = 0;
wire pressed = (ps2_key_raw[15:8] != 8'hf0);
wire extended = (~pressed ? (ps2_key_raw[23:16] == 8'he0) : (ps2_key_raw[15:8] == 8'he0));
// transfer to clk_sys domain
always@(posedge clk_sys) begin
reg old_ss1, old_ss2;
reg old_ready1, old_ready2;
reg [2:0] b_wr;
reg got_ps2 = 0;
old_ss1 <= CONF_DATA0;
old_ss2 <= old_ss1;
old_ready1 <= spi_data_ready;
old_ready2 <= old_ready1;
sd_buff_wr <= b_wr[0];
if(b_wr[2] && (~&sd_buff_addr)) sd_buff_addr <= sd_buff_addr + 1'b1;
b_wr <= (b_wr<<1);
if(old_ss2) begin
got_ps2 <= 0;
sd_ack <= 0;
sd_ack_conf <= 0;
sd_buff_addr <= 0;
if(got_ps2) begin
if(cmd == 4) ps2_mouse[24] <= ~ps2_mouse[24];
if(cmd == 5) begin
ps2_key <= {~ps2_key[10], pressed, extended, ps2_key_raw[7:0]};
if(ps2_key_raw == 'hE012E07C) ps2_key[9:0] <= 'h37C; // prnscr pressed
if(ps2_key_raw == 'h7CE0F012) ps2_key[9:0] <= 'h17C; // prnscr released
if(ps2_key_raw == 'hF014F077) ps2_key[9:0] <= 'h377; // pause pressed
end
end
end
else
if(old_ready2 ^ old_ready1) begin
if(cmd == 8'h18 && ~&sd_buff_addr) sd_buff_addr <= sd_buff_addr + 1'b1;
if(byte_cnt < 2) begin
if (cmd == 8'h19) sd_ack_conf <= 1;
if((cmd == 8'h17) || (cmd == 8'h18)) sd_ack <= 1;
mount_strobe <= 0;
if(cmd == 5) ps2_key_raw <= 0;
end else begin
case(cmd)
// buttons and switches
8'h01: but_sw <= spi_data_in;
8'h02: joystick_0 <= spi_data_in;
8'h03: joystick_1 <= spi_data_in;
// 8'h60: if (byte_cnt < 5) joystick_0[(byte_cnt-1)<<3 +:8] <= spi_data_in;
// 8'h61: if (byte_cnt < 5) joystick_1[(byte_cnt-1)<<3 +:8] <= spi_data_in;
// 8'h62: if (byte_cnt < 5) joystick_2[(byte_cnt-1)<<3 +:8] <= spi_data_in;
// 8'h63: if (byte_cnt < 5) joystick_3[(byte_cnt-1)<<3 +:8] <= spi_data_in;
// 8'h64: if (byte_cnt < 5) joystick_4[(byte_cnt-1)<<3 +:8] <= spi_data_in;
// store incoming ps2 mouse bytes
8'h04: begin
got_ps2 <= 1;
case(byte_cnt)
2: ps2_mouse[7:0] <= spi_data_in;
3: ps2_mouse[15:8] <= spi_data_in;
4: ps2_mouse[23:16] <= spi_data_in;
endcase
ps2_mouse_fifo[ps2_mouse_wptr] <= spi_data_in;
ps2_mouse_wptr <= ps2_mouse_wptr + 1'd1;
end
// store incoming ps2 keyboard bytes
8'h05: begin
got_ps2 <= 1;
ps2_key_raw[31:0] <= {ps2_key_raw[23:0], spi_data_in};
ps2_kbd_fifo[ps2_kbd_wptr] <= spi_data_in;
ps2_kbd_wptr <= ps2_kbd_wptr + 1'd1;
end
8'h15: status[7:0] <= spi_data_in;
// send SD config IO -> FPGA
// flag that download begins
// sd card knows data is config if sd_dout_strobe is asserted
// with sd_ack still being inactive (low)
8'h19,
// send sector IO -> FPGA
// flag that download begins
8'h17: begin
sd_buff_dout <= spi_data_in;
b_wr <= 1;
end
// joystick analog
8'h1a: begin
// first byte is joystick index
if(byte_cnt == 2) stick_idx <= spi_data_in[2:0];
else if(byte_cnt == 3) begin
// second byte is x axis
if(stick_idx == 0) joystick_analog_0[15:8] <= spi_data_in;
else if(stick_idx == 1) joystick_analog_1[15:8] <= spi_data_in;
end else if(byte_cnt == 4) begin
// third byte is y axis
if(stick_idx == 0) joystick_analog_0[7:0] <= spi_data_in;
else if(stick_idx == 1) joystick_analog_1[7:0] <= spi_data_in;
end
end
// notify image selection
8'h1c: mount_strobe[spi_data_in[0]] <= 1;
// send image info
8'h1d: if(byte_cnt<6) img_size[(byte_cnt-2)<<3 +:8] <= spi_data_in;
// status, 32bit version
8'h1e: if(byte_cnt<6) status[(byte_cnt-2)<<3 +:8] <= spi_data_in;
default: ;
endcase
end
end
end
/////////////////////////////// PS2 ///////////////////////////////
// 8 byte fifos to store ps2 bytes
localparam PS2_FIFO_BITS = 3;
reg clk_ps2;
always @(negedge clk_sys) begin
integer cnt;
cnt <= cnt + 1'd1;
if(cnt == PS2DIV) begin
clk_ps2 <= ~clk_ps2;
cnt <= 0;
end
end
// keyboard
reg [7:0] ps2_kbd_fifo[1<<PS2_FIFO_BITS];
reg [PS2_FIFO_BITS-1:0] ps2_kbd_wptr;
reg [PS2_FIFO_BITS-1:0] ps2_kbd_rptr;
// ps2 transmitter state machine
reg [3:0] ps2_kbd_tx_state;
reg [7:0] ps2_kbd_tx_byte;
reg ps2_kbd_parity;
assign ps2_kbd_clk = clk_ps2 || (ps2_kbd_tx_state == 0);
// ps2 transmitter
// Takes a byte from the FIFO and sends it in a ps2 compliant serial format.
reg ps2_kbd_r_inc;
always@(posedge clk_sys) begin
reg old_clk;
old_clk <= clk_ps2;
if(~old_clk & clk_ps2) begin
ps2_kbd_r_inc <= 0;
if(ps2_kbd_r_inc) ps2_kbd_rptr <= ps2_kbd_rptr + 1'd1;
// transmitter is idle?
if(ps2_kbd_tx_state == 0) begin
// data in fifo present?
if(ps2_kbd_wptr != ps2_kbd_rptr) begin
// load tx register from fifo
ps2_kbd_tx_byte <= ps2_kbd_fifo[ps2_kbd_rptr];
ps2_kbd_r_inc <= 1;
// reset parity
ps2_kbd_parity <= 1;
// start transmitter
ps2_kbd_tx_state <= 1;
// put start bit on data line
ps2_kbd_data <= 0; // start bit is 0
end
end else begin
// transmission of 8 data bits
if((ps2_kbd_tx_state >= 1)&&(ps2_kbd_tx_state < 9)) begin
ps2_kbd_data <= ps2_kbd_tx_byte[0]; // data bits
ps2_kbd_tx_byte[6:0] <= ps2_kbd_tx_byte[7:1]; // shift down
if(ps2_kbd_tx_byte[0])
ps2_kbd_parity <= !ps2_kbd_parity;
end
// transmission of parity
if(ps2_kbd_tx_state == 9) ps2_kbd_data <= ps2_kbd_parity;
// transmission of stop bit
if(ps2_kbd_tx_state == 10) ps2_kbd_data <= 1; // stop bit is 1
// advance state machine
if(ps2_kbd_tx_state < 11) ps2_kbd_tx_state <= ps2_kbd_tx_state + 1'd1;
else ps2_kbd_tx_state <= 0;
end
end
end
// mouse
reg [7:0] ps2_mouse_fifo[1<<PS2_FIFO_BITS];
reg [PS2_FIFO_BITS-1:0] ps2_mouse_wptr;
reg [PS2_FIFO_BITS-1:0] ps2_mouse_rptr;
// ps2 transmitter state machine
reg [3:0] ps2_mouse_tx_state;
reg [7:0] ps2_mouse_tx_byte;
reg ps2_mouse_parity;
assign ps2_mouse_clk = clk_ps2 || (ps2_mouse_tx_state == 0);
// ps2 transmitter
// Takes a byte from the FIFO and sends it in a ps2 compliant serial format.
reg ps2_mouse_r_inc;
always@(posedge clk_sys) begin
reg old_clk;
old_clk <= clk_ps2;
if(~old_clk & clk_ps2) begin
ps2_mouse_r_inc <= 0;
if(ps2_mouse_r_inc) ps2_mouse_rptr <= ps2_mouse_rptr + 1'd1;
// transmitter is idle?
if(ps2_mouse_tx_state == 0) begin
// data in fifo present?
if(ps2_mouse_wptr != ps2_mouse_rptr) begin
// load tx register from fifo
ps2_mouse_tx_byte <= ps2_mouse_fifo[ps2_mouse_rptr];
ps2_mouse_r_inc <= 1;
// reset parity
ps2_mouse_parity <= 1;
// start transmitter
ps2_mouse_tx_state <= 1;
// put start bit on data line
ps2_mouse_data <= 0; // start bit is 0
end
end else begin
// transmission of 8 data bits
if((ps2_mouse_tx_state >= 1)&&(ps2_mouse_tx_state < 9)) begin
ps2_mouse_data <= ps2_mouse_tx_byte[0]; // data bits
ps2_mouse_tx_byte[6:0] <= ps2_mouse_tx_byte[7:1]; // shift down
if(ps2_mouse_tx_byte[0])
ps2_mouse_parity <= !ps2_mouse_parity;
end
// transmission of parity
if(ps2_mouse_tx_state == 9) ps2_mouse_data <= ps2_mouse_parity;
// transmission of stop bit
if(ps2_mouse_tx_state == 10) ps2_mouse_data <= 1; // stop bit is 1
// advance state machine
if(ps2_mouse_tx_state < 11) ps2_mouse_tx_state <= ps2_mouse_tx_state + 1'd1;
else ps2_mouse_tx_state <= 0;
end
end
end
/////////////////////////////// DOWNLOADING ///////////////////////////////
reg [7:0] data_w;
reg [24:0] addr_w;
reg rclk = 0;
localparam UIO_FILE_TX = 8'h53;
localparam UIO_FILE_TX_DAT = 8'h54;
localparam UIO_FILE_INDEX = 8'h55;
reg rdownload = 0;
// data_io has its own SPI interface to the io controller
always@(posedge SPI_SCK, posedge SPI_SS2) begin
reg [6:0] sbuf;
reg [7:0] cmd;
reg [4:0] cnt;
reg [24:0] addr;
if(SPI_SS2) cnt <= 0;
else begin
// don't shift in last bit. It is evaluated directly
// when writing to ram
if(cnt != 15) sbuf <= { sbuf[5:0], SPI_DI};
// count 0-7 8-15 8-15 ...
if(cnt < 15) cnt <= cnt + 1'd1;
else cnt <= 8;
// finished command byte
if(cnt == 7) cmd <= {sbuf, SPI_DI};
// prepare/end transmission
if((cmd == UIO_FILE_TX) && (cnt == 15)) begin
// prepare
if(SPI_DI) begin
case(ioctl_index[4:0])
1: addr <= 25'h200000; // TRD buffer at 2MB
2: addr <= 25'h400000; // tape buffer at 4MB
default: addr <= 25'h150000; // boot rom
endcase
rdownload <= 1;
end else begin
addr_w <= addr;
rdownload <= 0;
end
end
// command 0x54: UIO_FILE_TX
if((cmd == UIO_FILE_TX_DAT) && (cnt == 15)) begin
addr_w <= addr;
data_w <= {sbuf, SPI_DI};
addr <= addr + 1'd1;
rclk <= ~rclk;
end
// expose file (menu) index
if((cmd == UIO_FILE_INDEX) && (cnt == 15)) ioctl_index <= {sbuf, SPI_DI};
end
end
// transfer to ioctl_clk domain.
// ioctl_index is set before ioctl_download, so it's stable already
always@(posedge clk_sys) begin
reg rclkD, rclkD2;
if(ioctl_ce) begin
ioctl_download <= rdownload;
rclkD <= rclk;
rclkD2 <= rclkD;
ioctl_wr <= 0;
if(rclkD != rclkD2) begin
ioctl_dout <= data_w;
ioctl_addr <= addr_w;
ioctl_wr <= 1;
end
end
end
endmodule

120
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/motion.vhd
View File

@ -22,8 +22,8 @@ use IEEE.STD_LOGIC_UNSIGNED.all;
entity motion is
port(
CLK6 : in std_logic;
CLK12 : in std_logic;
CLK6en : in std_logic;
PHI2 : in std_logic;
DISPLAY : in std_logic_vector(7 downto 0);
H256_s : in std_logic; -- 256H* on schematic
@ -164,9 +164,9 @@ Shell2_n <= R9_Qb or HShell2Win_n;
M9_in <= (L5_reg(4) or H4) & H64 & H32 & H16;
M9: process(clk6, M9_in)
M9: process(clk12, M9_in)
begin
if falling_edge(clk6) then
if rising_edge(clk12) then
case M9_in is
when "0000" =>
M9_out <= "1111111110";
@ -220,7 +220,7 @@ generic map(
widthad_a => 8,
width_a => 4)
port map(
clock => clk6,
clock => clk12,
address => VidROMAdr(7 downto 0),
q => VidROMdout(7 downto 4)
);
@ -231,7 +231,7 @@ generic map(
widthad_a => 8,
width_a => 4)
port map(
clock => clk6,
clock => clk12,
address => VidROMAdr(7 downto 0),
q => VidROMdout(3 downto 0)
);
@ -244,10 +244,10 @@ Vid <= VidROMDout(4) & VidROMDout(5) & VidROMDout(6) & VidROMDout(7) & VidROMDou
-- Decoders P8 and F8 generate the LDVxx signals
LDV_Decoder: process(clk6, clk12, VSP1_n, VSP2_n, HCount)
LDV_Decoder: process(clk12, VSP1_n, VSP2_n, HCount)
begin
if rising_edge(clk12) then
if VSP1_n = '0' and clk6 = '0' then
if VSP1_n = '0' and clk6en = '0' then
case HCount(1 downto 0) is
when "00" => LDV1_dec <= "1110";
when "10" => LDV1_dec <= "1101";
@ -260,7 +260,7 @@ begin
LDV1_dec <= "1111";
end if;
if VSP2_n = '0' and clk6 = '0' then
if VSP2_n = '0' and clk6en = '0' then
case HCount(1 downto 0) is
when "00" => LDV2_dec <= "1110";
when "10" => LDV2_dec <= "1101";
@ -286,13 +286,15 @@ LDV2D_n <= LDV2_dec(3);
-- Ship 1 Horizontal position counter
-- This combines two 74163s at locations P3 and N3 on the PCB
Ship1Count: process(clk6, H256_s, LDH1_n, Display)
Ship1Count: process(clk12, H256_s, LDH1_n, Display)
begin
if rising_edge(clk6) then
if LDH1_n = '0' then -- preload the counter
Ship1_Hpos <= Display;
elsif H256_s = '1' then -- increment the counter
Ship1_Hpos <= Ship1_Hpos + '1';
if rising_edge(clk12) then
if clk6en = '1' then
if LDH1_n = '0' then -- preload the counter
Ship1_Hpos <= Display;
elsif H256_s = '1' then -- increment the counter
Ship1_Hpos <= Ship1_Hpos + '1';
end if;
end if;
end if;
end process;
@ -300,13 +302,15 @@ ShipWin1_n <= '0' when Ship1_Hpos(7 downto 5) = "111" else '1';
-- Ship 2 Horizontal position counter
-- This combines two 74163s at locations R3 and M3 on the PCB
Ship2Count: process(clk6, H256_s, LDH2_n, Display)
Ship2Count: process(clk12, H256_s, LDH2_n, Display)
begin
if rising_edge(clk6) then
if LDH2_n = '0' then -- preload the counter
Ship2_Hpos <= Display;
elsif H256_s = '1' then -- increment the counter
Ship2_Hpos <= Ship2_Hpos + '1';
if rising_edge(clk12) then
if clk6en = '1' then
if LDH2_n = '0' then -- preload the counter
Ship2_Hpos <= Display;
elsif H256_s = '1' then -- increment the counter
Ship2_Hpos <= Ship2_Hpos + '1';
end if;
end if;
end if;
end process;
@ -314,18 +318,20 @@ ShipWin2_n <= '0' when Ship2_Hpos(7 downto 5) = "111" else '1';
-- Shell 1 Horizontal position counter
-- This combines two 74163s at locations R4 and M4 on the PCB
Shell1Count: process(clk6, H256_s, LDH3_n, Display)
Shell1Count: process(clk12, H256_s, LDH3_n, Display)
begin
if rising_edge(clk6) then
if LDH3_n = '0' then -- preload the counter
Shell1_Hpos <= Display;
elsif H256_s = '1' then -- increment the counter
Shell1_Hpos <= Shell1_Hpos + '1';
end if;
if Shell1_Hpos(7 downto 1) = "1111111" then
HShell1Win_n <= '0';
else
HShell1Win_n <= '1';
if rising_edge(clk12) then
if clk6en = '1' then
if LDH3_n = '0' then -- preload the counter
Shell1_Hpos <= Display;
elsif H256_s = '1' then -- increment the counter
Shell1_Hpos <= Shell1_Hpos + '1';
end if;
if Shell1_Hpos(7 downto 1) = "1111111" then
HShell1Win_n <= '0';
else
HShell1Win_n <= '1';
end if;
end if;
end if;
end process;
@ -333,18 +339,20 @@ end process;
-- Shell 2 Horizontal position counter
-- This combines two 74163s at locations P4 and N4 on the PCB
Shell2Count: process(clk6, H256_s, LDH4_n, Display)
Shell2Count: process(clk12, H256_s, LDH4_n, Display)
begin
if rising_edge(clk6) then
if LDH4_n = '0' then -- preload the counter
Shell2_Hpos <= Display;
elsif H256_s = '1' then -- increment the counter
Shell2_Hpos <= Shell2_Hpos + '1';
end if;
if Shell2_Hpos(7 downto 1) = "1111111" then
HShell2Win_n <= '0';
else
HShell2Win_n <= '1';
if rising_edge(clk12) then
if clk6en = '1' then
if LDH4_n = '0' then -- preload the counter
Shell2_Hpos <= Display;
elsif H256_s = '1' then -- increment the counter
Shell2_Hpos <= Shell2_Hpos + '1';
end if;
if Shell2_Hpos(7 downto 1) = "1111111" then
HShell2Win_n <= '0';
else
HShell2Win_n <= '1';
end if;
end if;
end if;
end process;
@ -353,18 +361,18 @@ end process;
-- Ship 1 video shift register
-- This combines four 74165s at locations R7, P7, N7 and M7 on the PCB
Ship1Shift: process(clk6, ShipWin1_n, LDV1A_n, LDV1B_n, LDV1C_n, LDV1D_n, Vid)
Ship1Shift: process(clk12, ShipWin1_n, LDV1A_n, LDV1B_n, LDV1C_n, LDV1D_n, Vid)
begin
if LDV1A_n = '0' then
if rising_edge(clk12) then
if LDV1A_n = '0' then
Ship1_reg(31 downto 24) <= Vid(7 downto 0); -- Load the register with data from the video ROMs
elsif LDV1B_n = '0' then
elsif LDV1B_n = '0' then
Ship1_reg(23 downto 16) <= Vid(7 downto 0);
elsif LDV1C_n = '0' then
elsif LDV1C_n = '0' then
Ship1_reg(15 downto 8) <= Vid(7 downto 0);
elsif LDV1D_n = '0' then
elsif LDV1D_n = '0' then
Ship1_reg(7 downto 0) <= Vid(7 downto 0);
elsif rising_edge(clk6) then
if ShipWin1_n = '0' then
elsif clk6en = '1' and ShipWin1_n = '0' then
Ship1_reg <= '0' & Ship1_reg(31 downto 1);
end if;
end if;
@ -374,18 +382,18 @@ Ship1_n <= (not Ship1_reg(0)) or ShipWin1_n;
-- Ship 2 video shift register
-- This combines four 74165s at locations R6, P6, N6 and M6 on the PCB
Ship2Shift: process(Clk6, ShipWin2_n, LDV2A_n, LDV2B_n, LDV2C_n, LDV2D_n, Vid)
Ship2Shift: process(Clk12, ShipWin2_n, LDV2A_n, LDV2B_n, LDV2C_n, LDV2D_n, Vid)
begin
if LDV2A_n = '0' then
if rising_edge(clk12) then
if LDV2A_n = '0' then
Ship2_reg(31 downto 24) <= Vid(7 downto 0); -- Load the register with data from the video ROMs
elsif LDV2B_n = '0' then
elsif LDV2B_n = '0' then
Ship2_reg(23 downto 16) <= Vid(7 downto 0);
elsif LDV2C_n = '0' then
elsif LDV2C_n = '0' then
Ship2_reg(15 downto 8) <= Vid(7 downto 0);
elsif LDV2D_n = '0' then
elsif LDV2D_n = '0' then
Ship2_reg(7 downto 0) <= Vid(7 downto 0);
elsif rising_edge(clk6) then
if ShipWin2_n = '0' then
elsif clk6en = '1' and ShipWin2_n = '0' then
Ship2_reg <= '0' & Ship2_reg(31 downto 1);
end if;
end if;

18
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/motor.vhd
View File

@ -28,7 +28,7 @@ generic(
constant Freq_tune : integer := 50 -- Value from 0-100 used to tune the overall engine sound frequency
);
port(
Clk_6 : in std_logic;
Clk_12 : in std_logic;
Ena_3k : in std_logic;
EngineData : in std_logic_vector(3 downto 0);
Motor : out std_logic_vector(5 downto 0)
@ -37,7 +37,7 @@ end EngineSound;
architecture rtl of EngineSound is
signal RPM_val : integer range 1 to 350;
signal RPM_val : integer range 1 to 700;
signal Ramp_Count : integer range 0 to 80000;
signal Ramp_term : integer range 1 to 80000;
signal Freq_mod : integer range 0 to 400;
@ -61,9 +61,9 @@ begin
-- The output of this DAC has a capacitor to smooth out the frequency variation.
-- The constants assigned to RPM_val can be tweaked to adjust the frequency curve
Speed_select: process(Clk_6)
Speed_select: process(Clk_12)
begin
if rising_edge(Clk_6) then
if rising_edge(Clk_12) then
case EngineData is
when "0000" => RPM_val <= 280;
when "0001" => RPM_val <= 245;
@ -88,12 +88,12 @@ end process;
-- Ramp_term terminates the ramp count, the higher this value, the longer the ramp will count up and the lower
-- the frequency. RPM_val is multiplied by a constant which can be adjusted by changing the value of freq_tune
-- to simulate the function of the frequency adjustment pot in the original hardware.
ramp_term <= ((200 - freq_tune) * RPM_val);
ramp_term <= ((200 - freq_tune) * RPM_val * 2);
-- Variable frequency oscillator roughly approximating the function of a 555 astable oscillator
Ramp_osc: process(clk_6)
Ramp_osc: process(clk_12)
begin
if rising_edge(clk_6) then
if rising_edge(clk_12) then
motor_clk <= '1';
ramp_count <= ramp_count + 1;
if ramp_count > ramp_term then
@ -119,9 +119,9 @@ end process;
motor_prefilter <= ('0' & Counter_B(2)) + ('0' & Counter_B(1)) + ('0' & Counter_A);
-- Very simple low pass filter, borrowed from MikeJ's Asteroids code
Engine_filter: process(clk_6)
Engine_filter: process(clk_12)
begin
if rising_edge(clk_6) then
if rising_edge(clk_12) then
if (ena_3k = '1') then
motor_filter_t1 <= ("00" & motor_prefilter) + ("00" & motor_prefilter);
motor_filter_t2 <= motor_filter_t1;

179
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/osd.sv
View File

@ -1,179 +0,0 @@
// A simple OSD implementation. Can be hooked up between a cores
// VGA output and the physical VGA pins
module osd (
// OSDs pixel clock, should be synchronous to cores pixel clock to
// avoid jitter.
input clk_sys,
// SPI interface
input SPI_SCK,
input SPI_SS3,
input SPI_DI,
// VGA signals coming from core
input [5:0] R_in,
input [5:0] G_in,
input [5:0] B_in,
input HSync,
input VSync,
// VGA signals going to video connector
output [5:0] R_out,
output [5:0] G_out,
output [5:0] B_out
);
parameter OSD_X_OFFSET = 10'd0;
parameter OSD_Y_OFFSET = 10'd0;
parameter OSD_COLOR = 3'd0;
localparam OSD_WIDTH = 10'd256;
localparam OSD_HEIGHT = 10'd128;
// *********************************************************************************
// spi client
// *********************************************************************************
// this core supports only the display related OSD commands
// of the minimig
reg osd_enable;
(* ramstyle = "no_rw_check" *) reg [7:0] osd_buffer[2047:0]; // the OSD buffer itself
// the OSD has its own SPI interface to the io controller
always@(posedge SPI_SCK, posedge SPI_SS3) begin
reg [4:0] cnt;
reg [10:0] bcnt;
reg [7:0] sbuf;
reg [7:0] cmd;
if(SPI_SS3) begin
cnt <= 0;
bcnt <= 0;
end else begin
sbuf <= {sbuf[6:0], SPI_DI};
// 0:7 is command, rest payload
if(cnt < 15) cnt <= cnt + 1'd1;
else cnt <= 8;
if(cnt == 7) begin
cmd <= {sbuf[6:0], SPI_DI};
// lower three command bits are line address
bcnt <= {sbuf[1:0], SPI_DI, 8'h00};
// command 0x40: OSDCMDENABLE, OSDCMDDISABLE
if(sbuf[6:3] == 4'b0100) osd_enable <= SPI_DI;
end
// command 0x20: OSDCMDWRITE
if((cmd[7:3] == 5'b00100) && (cnt == 15)) begin
osd_buffer[bcnt] <= {sbuf[6:0], SPI_DI};
bcnt <= bcnt + 1'd1;
end
end
end
// *********************************************************************************
// video timing and sync polarity anaylsis
// *********************************************************************************
// horizontal counter
reg [9:0] h_cnt;
reg [9:0] hs_low, hs_high;
wire hs_pol = hs_high < hs_low;
wire [9:0] dsp_width = hs_pol ? hs_low : hs_high;
// vertical counter
reg [9:0] v_cnt;
reg [9:0] vs_low, vs_high;
wire vs_pol = vs_high < vs_low;
wire [9:0] dsp_height = vs_pol ? vs_low : vs_high;
wire doublescan = (dsp_height>350);
reg ce_pix;
always @(negedge clk_sys) begin
integer cnt = 0;
integer pixsz, pixcnt;
reg hs;
cnt <= cnt + 1;
hs <= HSync;
pixcnt <= pixcnt + 1;
if(pixcnt == pixsz) pixcnt <= 0;
ce_pix <= !pixcnt;
if(hs && ~HSync) begin
cnt <= 0;
pixsz <= (cnt >> 9) - 1;
pixcnt <= 0;
ce_pix <= 1;
end
end
always @(posedge clk_sys) begin
reg hsD, hsD2;
reg vsD, vsD2;
if(ce_pix) begin
// bring hsync into local clock domain
hsD <= HSync;
hsD2 <= hsD;
// falling edge of HSync
if(!hsD && hsD2) begin
h_cnt <= 0;
hs_high <= h_cnt;
end
// rising edge of HSync
else if(hsD && !hsD2) begin
h_cnt <= 0;
hs_low <= h_cnt;
v_cnt <= v_cnt + 1'd1;
end else begin
h_cnt <= h_cnt + 1'd1;
end
vsD <= VSync;
vsD2 <= vsD;
// falling edge of VSync
if(!vsD && vsD2) begin
v_cnt <= 0;
vs_high <= v_cnt;
end
// rising edge of VSync
else if(vsD && !vsD2) begin
v_cnt <= 0;
vs_low <= v_cnt;
end
end
end
// area in which OSD is being displayed
wire [9:0] h_osd_start = ((dsp_width - OSD_WIDTH)>> 1) + OSD_X_OFFSET;
wire [9:0] h_osd_end = h_osd_start + OSD_WIDTH;
wire [9:0] v_osd_start = ((dsp_height- (OSD_HEIGHT<<doublescan))>> 1) + OSD_Y_OFFSET;
wire [9:0] v_osd_end = v_osd_start + (OSD_HEIGHT<<doublescan);
wire [9:0] osd_hcnt = h_cnt - h_osd_start + 1'd1; // one pixel offset for osd_byte register
wire [9:0] osd_vcnt = v_cnt - v_osd_start;
wire osd_de = osd_enable &&
(HSync != hs_pol) && (h_cnt >= h_osd_start) && (h_cnt < h_osd_end) &&
(VSync != vs_pol) && (v_cnt >= v_osd_start) && (v_cnt < v_osd_end);
reg [7:0] osd_byte;
always @(posedge clk_sys) if(ce_pix) osd_byte <= osd_buffer[{doublescan ? osd_vcnt[7:5] : osd_vcnt[6:4], osd_hcnt[7:0]}];
wire osd_pixel = osd_byte[doublescan ? osd_vcnt[4:2] : osd_vcnt[3:1]];
assign R_out = !osd_de ? R_in : {osd_pixel, osd_pixel, OSD_COLOR[2], R_in[5:3]};
assign G_out = !osd_de ? G_in : {osd_pixel, osd_pixel, OSD_COLOR[1], G_in[5:3]};
assign B_out = !osd_de ? B_in : {osd_pixel, osd_pixel, OSD_COLOR[0], B_in[5:3]};
endmodule

25
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/playfield.vhd
View File

@ -20,7 +20,8 @@ use IEEE.STD_LOGIC_UNSIGNED.all;
entity playfield is
port(
clk6 : in std_logic;
clk12 : in std_logic;
clk6en : in std_logic;
display : in std_logic_vector(7 downto 0);
HCount : in std_logic_vector(8 downto 0);
VCount : in std_logic_vector(7 downto 0);
@ -97,21 +98,23 @@ generic map(
widthad_a => 10,
width_a => 4)
port map(
clock => clk6,
clock => clk12,
address => char_addr,
q => char_data
);
-- 74LS195 video shift register
R3: process(clk6, SL, VBlank_n_s, char_data, shift_data)
R3: process(clk12, SL, VBlank_n_s, char_data, shift_data)
begin
if VBlank_n_s = '0' then -- Connected Clear input
shift_data <= (others => '0');
elsif rising_edge(clk6) then
if SL = '0' then -- Parallel load
shift_data <= char_data;
else
shift_data <= shift_data(2 downto 0) & '0';
elsif rising_edge(clk12) then
if clk6en = '1' then
if SL = '0' then -- Parallel load
shift_data <= char_data;
else
shift_data <= shift_data(2 downto 0) & '0';
end if;
end if;
end if;
QH <= shift_data(3);
@ -120,10 +123,10 @@ end process;
-- 9316 counter at R2
-- CEP and CET tied to ground, counter is used only as a synchronous latch
R2: process(clk6, H1H2, display, H256, CompSync_n, CompBlank_n)
R2: process(clk12, H1H2, display, H256, CompSync_n, CompBlank_n)
begin
if rising_edge(clk6) then
if H1H2 = '0' then
if rising_edge(clk12) then
if clk6en = '1' and H1H2 = '0' then
R2_reg <= (H256 & display(7) & CompBlank_n & CompSync_n);
end if;
end if;

42
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/pll.v
View File

@ -14,7 +14,7 @@
// ************************************************************
// THIS IS A WIZARD-GENERATED FILE. DO NOT EDIT THIS FILE!
//
// 13.1.4 Build 182 03/12/2014 SJ Web Edition
// 13.1.4 Build 182 03/12/2014 Patches 4.26 SJ Web Edition
// ************************************************************
@ -40,30 +40,26 @@ module pll (
inclk0,
c0,
c1,
c2,
locked);
input inclk0;
output c0;
output c1;
output c2;
output locked;
wire [4:0] sub_wire0;
wire sub_wire2;
wire [0:0] sub_wire7 = 1'h0;
wire [2:2] sub_wire4 = sub_wire0[2:2];
wire [0:0] sub_wire6 = 1'h0;
wire [0:0] sub_wire3 = sub_wire0[0:0];
wire [1:1] sub_wire1 = sub_wire0[1:1];
wire c1 = sub_wire1;
wire locked = sub_wire2;
wire c0 = sub_wire3;
wire c2 = sub_wire4;
wire sub_wire5 = inclk0;
wire [1:0] sub_wire6 = {sub_wire7, sub_wire5};
wire sub_wire4 = inclk0;
wire [1:0] sub_wire5 = {sub_wire6, sub_wire4};
altpll altpll_component (
.inclk (sub_wire6),
.inclk (sub_wire5),
.clk (sub_wire0),
.locked (sub_wire2),
.activeclock (),
@ -110,10 +106,6 @@ module pll (
altpll_component.clk1_duty_cycle = 50,
altpll_component.clk1_multiply_by = 56,
altpll_component.clk1_phase_shift = "0",
altpll_component.clk2_divide_by = 125,
altpll_component.clk2_duty_cycle = 50,
altpll_component.clk2_multiply_by = 28,
altpll_component.clk2_phase_shift = "0",
altpll_component.compensate_clock = "CLK0",
altpll_component.inclk0_input_frequency = 37037,
altpll_component.intended_device_family = "Cyclone III",
@ -148,7 +140,7 @@ module pll (
altpll_component.port_scanwrite = "PORT_UNUSED",
altpll_component.port_clk0 = "PORT_USED",
altpll_component.port_clk1 = "PORT_USED",
altpll_component.port_clk2 = "PORT_USED",
altpll_component.port_clk2 = "PORT_UNUSED",
altpll_component.port_clk3 = "PORT_UNUSED",
altpll_component.port_clk4 = "PORT_UNUSED",
altpll_component.port_clk5 = "PORT_UNUSED",
@ -189,13 +181,10 @@ endmodule
// Retrieval info: PRIVATE: DEVICE_SPEED_GRADE STRING "8"
// Retrieval info: PRIVATE: DIV_FACTOR0 NUMERIC "125"
// Retrieval info: PRIVATE: DIV_FACTOR1 NUMERIC "125"
// Retrieval info: PRIVATE: DIV_FACTOR2 NUMERIC "125"
// Retrieval info: PRIVATE: DUTY_CYCLE0 STRING "50.00000000"
// Retrieval info: PRIVATE: DUTY_CYCLE1 STRING "50.00000000"
// Retrieval info: PRIVATE: DUTY_CYCLE2 STRING "50.00000000"
// Retrieval info: PRIVATE: EFF_OUTPUT_FREQ_VALUE0 STRING "24.191999"
// Retrieval info: PRIVATE: EFF_OUTPUT_FREQ_VALUE1 STRING "12.096000"
// Retrieval info: PRIVATE: EFF_OUTPUT_FREQ_VALUE2 STRING "6.048000"
// Retrieval info: PRIVATE: EXPLICIT_SWITCHOVER_COUNTER STRING "0"
// Retrieval info: PRIVATE: EXT_FEEDBACK_RADIO STRING "0"
// Retrieval info: PRIVATE: GLOCKED_COUNTER_EDIT_CHANGED STRING "1"
@ -217,33 +206,25 @@ endmodule
// Retrieval info: PRIVATE: LVDS_MODE_DATA_RATE_DIRTY NUMERIC "0"
// Retrieval info: PRIVATE: LVDS_PHASE_SHIFT_UNIT0 STRING "deg"
// Retrieval info: PRIVATE: LVDS_PHASE_SHIFT_UNIT1 STRING "ps"
// Retrieval info: PRIVATE: LVDS_PHASE_SHIFT_UNIT2 STRING "ps"
// Retrieval info: PRIVATE: MIG_DEVICE_SPEED_GRADE STRING "Any"
// Retrieval info: PRIVATE: MIRROR_CLK0 STRING "0"
// Retrieval info: PRIVATE: MIRROR_CLK1 STRING "0"
// Retrieval info: PRIVATE: MIRROR_CLK2 STRING "0"
// Retrieval info: PRIVATE: MULT_FACTOR0 NUMERIC "112"
// Retrieval info: PRIVATE: MULT_FACTOR1 NUMERIC "56"
// Retrieval info: PRIVATE: MULT_FACTOR2 NUMERIC "28"
// Retrieval info: PRIVATE: NORMAL_MODE_RADIO STRING "1"
// Retrieval info: PRIVATE: OUTPUT_FREQ0 STRING "24.19200000"
// Retrieval info: PRIVATE: OUTPUT_FREQ1 STRING "12.09600000"
// Retrieval info: PRIVATE: OUTPUT_FREQ2 STRING "6.04800000"
// Retrieval info: PRIVATE: OUTPUT_FREQ_MODE0 STRING "0"
// Retrieval info: PRIVATE: OUTPUT_FREQ_MODE1 STRING "0"
// Retrieval info: PRIVATE: OUTPUT_FREQ_MODE2 STRING "0"
// Retrieval info: PRIVATE: OUTPUT_FREQ_UNIT0 STRING "MHz"
// Retrieval info: PRIVATE: OUTPUT_FREQ_UNIT1 STRING "MHz"
// Retrieval info: PRIVATE: OUTPUT_FREQ_UNIT2 STRING "MHz"
// Retrieval info: PRIVATE: PHASE_RECONFIG_FEATURE_ENABLED STRING "1"
// Retrieval info: PRIVATE: PHASE_RECONFIG_INPUTS_CHECK STRING "0"
// Retrieval info: PRIVATE: PHASE_SHIFT0 STRING "0.00000000"
// Retrieval info: PRIVATE: PHASE_SHIFT1 STRING "0.00000000"
// Retrieval info: PRIVATE: PHASE_SHIFT2 STRING "0.00000000"
// Retrieval info: PRIVATE: PHASE_SHIFT_STEP_ENABLED_CHECK STRING "0"
// Retrieval info: PRIVATE: PHASE_SHIFT_UNIT0 STRING "deg"
// Retrieval info: PRIVATE: PHASE_SHIFT_UNIT1 STRING "deg"
// Retrieval info: PRIVATE: PHASE_SHIFT_UNIT2 STRING "ps"
// Retrieval info: PRIVATE: PLL_ADVANCED_PARAM_CHECK STRING "0"
// Retrieval info: PRIVATE: PLL_ARESET_CHECK STRING "0"
// Retrieval info: PRIVATE: PLL_AUTOPLL_CHECK NUMERIC "1"
@ -267,16 +248,13 @@ endmodule
// Retrieval info: PRIVATE: SRC_SYNCH_COMP_RADIO STRING "0"
// Retrieval info: PRIVATE: STICKY_CLK0 STRING "1"
// Retrieval info: PRIVATE: STICKY_CLK1 STRING "1"
// Retrieval info: PRIVATE: STICKY_CLK2 STRING "1"
// Retrieval info: PRIVATE: SWITCHOVER_COUNT_EDIT NUMERIC "1"
// Retrieval info: PRIVATE: SWITCHOVER_FEATURE_ENABLED STRING "1"
// Retrieval info: PRIVATE: SYNTH_WRAPPER_GEN_POSTFIX STRING "0"
// Retrieval info: PRIVATE: USE_CLK0 STRING "1"
// Retrieval info: PRIVATE: USE_CLK1 STRING "1"
// Retrieval info: PRIVATE: USE_CLK2 STRING "1"
// Retrieval info: PRIVATE: USE_CLKENA0 STRING "0"
// Retrieval info: PRIVATE: USE_CLKENA1 STRING "0"
// Retrieval info: PRIVATE: USE_CLKENA2 STRING "0"
// Retrieval info: PRIVATE: USE_MIL_SPEED_GRADE NUMERIC "0"
// Retrieval info: PRIVATE: ZERO_DELAY_RADIO STRING "0"
// Retrieval info: LIBRARY: altera_mf altera_mf.altera_mf_components.all
@ -289,10 +267,6 @@ endmodule
// Retrieval info: CONSTANT: CLK1_DUTY_CYCLE NUMERIC "50"
// Retrieval info: CONSTANT: CLK1_MULTIPLY_BY NUMERIC "56"
// Retrieval info: CONSTANT: CLK1_PHASE_SHIFT STRING "0"
// Retrieval info: CONSTANT: CLK2_DIVIDE_BY NUMERIC "125"
// Retrieval info: CONSTANT: CLK2_DUTY_CYCLE NUMERIC "50"
// Retrieval info: CONSTANT: CLK2_MULTIPLY_BY NUMERIC "28"
// Retrieval info: CONSTANT: CLK2_PHASE_SHIFT STRING "0"
// Retrieval info: CONSTANT: COMPENSATE_CLOCK STRING "CLK0"
// Retrieval info: CONSTANT: INCLK0_INPUT_FREQUENCY NUMERIC "37037"
// Retrieval info: CONSTANT: INTENDED_DEVICE_FAMILY STRING "Cyclone III"
@ -326,7 +300,7 @@ endmodule
// Retrieval info: CONSTANT: PORT_SCANWRITE STRING "PORT_UNUSED"
// Retrieval info: CONSTANT: PORT_clk0 STRING "PORT_USED"
// Retrieval info: CONSTANT: PORT_clk1 STRING "PORT_USED"
// Retrieval info: CONSTANT: PORT_clk2 STRING "PORT_USED"
// Retrieval info: CONSTANT: PORT_clk2 STRING "PORT_UNUSED"
// Retrieval info: CONSTANT: PORT_clk3 STRING "PORT_UNUSED"
// Retrieval info: CONSTANT: PORT_clk4 STRING "PORT_UNUSED"
// Retrieval info: CONSTANT: PORT_clk5 STRING "PORT_UNUSED"
@ -345,14 +319,12 @@ endmodule
// Retrieval info: USED_PORT: @clk 0 0 5 0 OUTPUT_CLK_EXT VCC "@clk[4..0]"
// Retrieval info: USED_PORT: c0 0 0 0 0 OUTPUT_CLK_EXT VCC "c0"
// Retrieval info: USED_PORT: c1 0 0 0 0 OUTPUT_CLK_EXT VCC "c1"
// Retrieval info: USED_PORT: c2 0 0 0 0 OUTPUT_CLK_EXT VCC "c2"
// Retrieval info: USED_PORT: inclk0 0 0 0 0 INPUT_CLK_EXT GND "inclk0"
// Retrieval info: USED_PORT: locked 0 0 0 0 OUTPUT GND "locked"
// Retrieval info: CONNECT: @inclk 0 0 1 1 GND 0 0 0 0
// Retrieval info: CONNECT: @inclk 0 0 1 0 inclk0 0 0 0 0
// Retrieval info: CONNECT: c0 0 0 0 0 @clk 0 0 1 0
// Retrieval info: CONNECT: c1 0 0 0 0 @clk 0 0 1 1
// Retrieval info: CONNECT: c2 0 0 0 0 @clk 0 0 1 2
// Retrieval info: CONNECT: locked 0 0 0 0 @locked 0 0 0 0
// Retrieval info: GEN_FILE: TYPE_NORMAL pll.v TRUE
// Retrieval info: GEN_FILE: TYPE_NORMAL pll.ppf TRUE

195
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/scandoubler.sv
View File

@ -1,195 +0,0 @@
//
// scandoubler.v
//
// Copyright (c) 2015 Till Harbaum <till@harbaum.org>
// Copyright (c) 2017 Sorgelig
//
// This source file is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This source file is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// TODO: Delay vsync one line
module scandoubler #(parameter LENGTH, parameter HALF_DEPTH)
(
// system interface
input clk_sys,
input ce_pix,
input ce_pix_actual,
input hq2x,
// shifter video interface
input hs_in,
input vs_in,
input line_start,
input [DWIDTH:0] r_in,
input [DWIDTH:0] g_in,
input [DWIDTH:0] b_in,
input mono,
// output interface
output reg hs_out,
output vs_out,
output [DWIDTH:0] r_out,
output [DWIDTH:0] g_out,
output [DWIDTH:0] b_out
);
localparam DWIDTH = HALF_DEPTH ? 2 : 5;
assign vs_out = vs_in;
reg [2:0] phase;
reg [2:0] ce_div;
reg [7:0] pix_len = 0;
wire [7:0] pl = pix_len + 1'b1;
reg ce_x1, ce_x4;
reg req_line_reset;
wire ls_in = hs_in | line_start;
always @(negedge clk_sys) begin
reg old_ce;
reg [2:0] ce_cnt;
reg [7:0] pixsz2, pixsz4 = 0;
old_ce <= ce_pix;
if(~&pix_len) pix_len <= pix_len + 1'd1;
ce_x4 <= 0;
ce_x1 <= 0;
// use such odd comparison to place c_x4 evenly if master clock isn't multiple 4.
if((pl == pixsz4) || (pl == pixsz2) || (pl == (pixsz2+pixsz4))) begin
phase <= phase + 1'd1;
ce_x4 <= 1;
end
if(~old_ce & ce_pix) begin
pixsz2 <= {1'b0, pl[7:1]};
pixsz4 <= {2'b00, pl[7:2]};
ce_x1 <= 1;
ce_x4 <= 1;
pix_len <= 0;
phase <= phase + 1'd1;
ce_cnt <= ce_cnt + 1'd1;
if(ce_pix_actual) begin
phase <= 0;
ce_div <= ce_cnt + 1'd1;
ce_cnt <= 0;
req_line_reset <= 0;
end
if(ls_in) req_line_reset <= 1;
end
end
reg ce_sd;
always @(*) begin
case(ce_div)
2: ce_sd = !phase[0];
4: ce_sd = !phase[1:0];
default: ce_sd <= 1;
endcase
end
`define BITS_TO_FIT(N) ( \
N <= 2 ? 0 : \
N <= 4 ? 1 : \
N <= 8 ? 2 : \
N <= 16 ? 3 : \
N <= 32 ? 4 : \
N <= 64 ? 5 : \
N <= 128 ? 6 : \
N <= 256 ? 7 : \
N <= 512 ? 8 : \
N <=1024 ? 9 : 10 )
localparam AWIDTH = `BITS_TO_FIT(LENGTH);
Hq2x #(.LENGTH(LENGTH), .HALF_DEPTH(HALF_DEPTH)) Hq2x
(
.clk(clk_sys),
.ce_x4(ce_x4 & ce_sd),
.inputpixel({b_in,g_in,r_in}),
.mono(mono),
.disable_hq2x(~hq2x),
.reset_frame(vs_in),
.reset_line(req_line_reset),
.read_y(sd_line),
.read_x(sd_h_actual),
.outpixel({b_out,g_out,r_out})
);
reg [10:0] sd_h_actual;
always @(*) begin
case(ce_div)
2: sd_h_actual = sd_h[10:1];
4: sd_h_actual = sd_h[10:2];
default: sd_h_actual = sd_h;
endcase
end
reg [10:0] sd_h;
reg [1:0] sd_line;
always @(posedge clk_sys) begin
reg [11:0] hs_max,hs_rise,hs_ls;
reg [10:0] hcnt;
reg [11:0] sd_hcnt;
reg hs, hs2, vs, ls;
if(ce_x1) begin
hs <= hs_in;
ls <= ls_in;
if(ls && !ls_in) hs_ls <= {hcnt,1'b1};
// falling edge of hsync indicates start of line
if(hs && !hs_in) begin
hs_max <= {hcnt,1'b1};
hcnt <= 0;
if(ls && !ls_in) hs_ls <= {10'd0,1'b1};
end else begin
hcnt <= hcnt + 1'd1;
end
// save position of rising edge
if(!hs && hs_in) hs_rise <= {hcnt,1'b1};
vs <= vs_in;
if(vs && ~vs_in) sd_line <= 0;
end
if(ce_x4) begin
hs2 <= hs_in;
// output counter synchronous to input and at twice the rate
sd_hcnt <= sd_hcnt + 1'd1;
sd_h <= sd_h + 1'd1;
if(hs2 && !hs_in) sd_hcnt <= hs_max;
if(sd_hcnt == hs_max) sd_hcnt <= 0;
// replicate horizontal sync at twice the speed
if(sd_hcnt == hs_max) hs_out <= 0;
if(sd_hcnt == hs_rise) hs_out <= 1;
if(sd_hcnt == hs_ls) sd_h <= 0;
if(sd_hcnt == hs_ls) sd_line <= sd_line + 1'd1;
end
end
endmodule

28
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/sound.vhd
View File

@ -20,7 +20,7 @@ use IEEE.STD_LOGIC_UNSIGNED.all;
entity audio is
port(
Clk_6 : in std_logic;
Clk_12 : in std_logic;
Ena_3k : in std_logic;
Reset_n : in std_logic;
Motor1_n : in std_logic;
@ -42,6 +42,7 @@ architecture rtl of audio is
signal Reset : std_logic;
signal V2 : std_logic;
signal V2_D : std_logic;
signal Noise : std_logic;
signal Noise_Shift : std_logic_vector(15 downto 0);
@ -75,15 +76,18 @@ V2 <= VCount(1);
-- Explosion --
-- LFSR that generates pseudo-random noise used by the explosion sound
Noise_gen: process(Attract1, Attract2, V2)
Noise_gen: process(Attract1, Attract2, clk_12)
begin
if ((Attract1 nand Attract2) = '0') then
noise_shift <= (others => '0');
noise <= '0';
elsif rising_edge(V2) then
shift_in <= not(noise_shift(6) xor noise_shift(8));
noise_shift <= shift_in & noise_shift(15 downto 1);
noise <= noise_shift(0);
elsif rising_edge(clk_12) then
V2_D <= V2;
if V2_D = '0' and V2 = '1' then
shift_in <= not(noise_shift(6) xor noise_shift(8));
noise_shift <= shift_in & noise_shift(15 downto 1);
noise <= noise_shift(0);
end if;
end if;
end process;
@ -97,9 +101,9 @@ end process;
explosion_prefilter <= explosion when noise = '1' else "0000";
-- Very simple low pass filter, borrowed from MikeJ's Asteroids code, should probably be lower cutoff
explode_filter: process(clk_6)
explode_filter: process(clk_12)
begin
if rising_edge(clk_6) then
if rising_edge(clk_12) then
if (ena_3k = '1') then
explosion_filter_t1 <= explosion_prefilter;
explosion_filter_t2 <= explosion_filter_t1;
@ -126,7 +130,7 @@ generic map(
Freq_tune => 45 -- Tuning pot for engine sound frequency (Range 1-100)
)
port map(
Clk_6 => clk_6,
Clk_12 => clk_12,
Ena_3k => ena_3k,
EngineData => motor1_speed,
Motor => motor1_snd
@ -144,7 +148,7 @@ generic map(
Freq_tune => 47 -- Tuning pot for engine sound frequency (Range 1-100)
)
port map(
Clk_6 => clk_6,
Clk_12 => clk_12,
Ena_3k => ena_3k,
EngineData => motor2_speed,
Motor => motor2_snd
@ -159,7 +163,7 @@ generic map(
Freq_tune => 40 -- Tuning pot for whistle sound frequency (Range 1-100)
)
port map(
Clk_6 => clk_6,
Clk_12 => clk_12,
Ena_3k => ena_3k,
Whistle_trig => whistle1,
Whistle_out => whistle_snd1
@ -170,7 +174,7 @@ generic map(
Freq_tune => 44 -- Tuning pot for whistle sound frequency (Range 1-100)
)
port map(
Clk_6 => clk_6,
Clk_12 => clk_12,
Ena_3k => ena_3k,
Whistle_trig => whistle2,
Whistle_out => whistle_snd2

42
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/sync.vhd
View File

@ -23,6 +23,7 @@ entity synchronizer is
port(
clk_12 : in std_logic;
clk_6 : out std_logic;
clk_6en : out std_logic;
hcount : out std_logic_vector(8 downto 0);
vcount : out std_logic_vector(7 downto 0);
hsync : buffer std_logic;
@ -43,9 +44,11 @@ signal H256_n : std_logic;
signal H128 : std_logic;
signal H64 : std_logic;
signal H32 : std_logic;
signal H32_EN : std_logic;
signal H16 : std_logic;
signal H8 : std_logic;
signal H8_n : std_logic;
signal H8_EN : std_logic;
signal H4 : std_logic;
signal H4_n : std_logic;
signal H2 : std_logic;
@ -84,13 +87,15 @@ begin
end process;
-- Vertical counter is 8 bits, clocked by the rising edge of H256 at the end of each horizontal line
V_count: process(hsync)
V_count: process(clk_12)
begin
if rising_edge(Hsync) then
if vreset_n = '0' then
v_counter <= (others => '0');
else
v_counter <= v_counter + '1';
if rising_edge(clk_12) then
if H8_EN = '1' and H32 = '1' and hsync = '0' and hblank = '1' then -- rising_edge(hsync)
if vreset_n = '0' then
v_counter <= (others => '0');
else
v_counter <= v_counter + '1';
end if;
end if;
end if;
end process;
@ -103,16 +108,18 @@ generic map(
widthad_a => 8,
width_a => 4)
port map(
clock => clk_12,
clock => not clk_12,
address => sync_reg(3) & V128 & V64 & V16 & V8 & V4 & V2 & V1,
q => sync_bus
);
-- Register fed by the sync PROM, in the original hardware this also creates the complements of these signals
sync_register: process(hsync)
sync_register: process(clk_12)
begin
if rising_edge(hsync) then
sync_reg <= sync_bus;
if rising_edge(clk_12) then
if H8_EN = '1' and H32 = '1' and hsync = '0' and hblank = '1' then -- rising_edge(hsync)
sync_reg <= sync_bus;
end if;
end if;
end process;
@ -125,36 +132,39 @@ vblank <= sync_reg(1);
vsync <= sync_reg(0);
-- A pair of D type flip-flops that generate the Hsync signal
Hsync_1: process(H256_n, H32)
Hsync_1: process(clk_12, H256_n)
begin
if H256_n = '0' then
hblank <= '0';
else
if rising_edge(H32) then
hblank <= not H64;
if rising_edge(clk_12) then
if H32_EN = '1' then hblank <= not H64; end if;
end if;
end if;
end process;
Hsync_2: process(hblank, H8)
Hsync_2: process(clk_12, hblank)
begin
if hblank = '0' then
hsync <= '0';
else
if rising_edge(H8) then
hsync <= H32;
if rising_edge(clk_12) then
if H8_EN = '1' then hsync <= H32; end if;
end if;
end if;
end process;
-- Assign various signals
clk_6 <= h_counter(0);
clk_6en <= not h_counter(0);
H1 <= h_counter(1);
H2 <= h_counter(2);
H4 <= h_counter(3);
H8 <= h_counter(4);
H8_EN <= '1' when h_counter(4 downto 0) = "01111" else '0';
H16 <= h_counter(5);
H32 <= h_counter(6);
H32_EN <= '1' when h_counter(6 downto 0) = "0111111" else '0';
H64 <= h_counter(7);
H128 <= h_counter(8);
H256 <= h_counter(9);

242
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/video_mixer.sv
View File

@ -1,242 +0,0 @@
//
//
// Copyright (c) 2017 Sorgelig
//
// This program is GPL Licensed. See COPYING for the full license.
//
//
////////////////////////////////////////////////////////////////////////////////////////////////////////
`timescale 1ns / 1ps
//
// LINE_LENGTH: Length of display line in pixels
// Usually it's length from HSync to HSync.
// May be less if line_start is used.
//
// HALF_DEPTH: If =1 then color dept is 3 bits per component
// For half depth 6 bits monochrome is available with
// mono signal enabled and color = {G, R}
module video_mixer
#(
parameter LINE_LENGTH = 768,
parameter HALF_DEPTH = 0,
parameter OSD_COLOR = 3'd4,
parameter OSD_X_OFFSET = 10'd0,
parameter OSD_Y_OFFSET = 10'd0
)
(
// master clock
// it should be multiple by (ce_pix*4).
input clk_sys,
// Pixel clock or clock_enable (both are accepted).
input ce_pix,
// Some systems have multiple resolutions.
// ce_pix_actual should match ce_pix where every second or fourth pulse is enabled,
// thus half or qurter resolutions can be used without brake video sync while switching resolutions.
// For fixed single resolution (or when video sync stability isn't required) ce_pix_actual = ce_pix.
input ce_pix_actual,
// OSD SPI interface
input SPI_SCK,
input SPI_SS3,
input SPI_DI,
// scanlines (00-none 01-25% 10-50% 11-75%)
input [1:0] scanlines,
// 0 = HVSync 31KHz, 1 = CSync 15KHz
input scandoublerD,
// High quality 2x scaling
input hq2x,
// YPbPr always uses composite sync
input ypbpr,
// 0 = 16-240 range. 1 = 0-255 range. (only for YPbPr color space)
input ypbpr_full,
// color
input [DWIDTH:0] R,
input [DWIDTH:0] G,
input [DWIDTH:0] B,
// Monochrome mode (for HALF_DEPTH only)
input mono,
// interlace sync. Positive pulses.
input HSync,
input VSync,
// Falling of this signal means start of informative part of line.
// It can be horizontal blank signal.
// This signal can be used to reduce amount of required FPGA RAM for HQ2x scan doubler
// If FPGA RAM is not an issue, then simply set it to 0 for whole line processing.
// Keep in mind: due to algo first and last pixels of line should be black to avoid side artefacts.
// Thus, if blank signal is used to reduce the line, make sure to feed at least one black (or paper) pixel
// before first informative pixel.
input line_start,
// MiST video output signals
output [5:0] VGA_R,
output [5:0] VGA_G,
output [5:0] VGA_B,
output VGA_VS,
output VGA_HS
);
localparam DWIDTH = HALF_DEPTH ? 2 : 5;
wire [DWIDTH:0] R_sd;
wire [DWIDTH:0] G_sd;
wire [DWIDTH:0] B_sd;
wire hs_sd, vs_sd;
scandoubler #(.LENGTH(LINE_LENGTH), .HALF_DEPTH(HALF_DEPTH)) scandoubler
(
.*,
.hs_in(HSync),
.vs_in(VSync),
.r_in(R),
.g_in(G),
.b_in(B),
.hs_out(hs_sd),
.vs_out(vs_sd),
.r_out(R_sd),
.g_out(G_sd),
.b_out(B_sd)
);
wire [DWIDTH:0] rt = (scandoublerD ? R : R_sd);
wire [DWIDTH:0] gt = (scandoublerD ? G : G_sd);
wire [DWIDTH:0] bt = (scandoublerD ? B : B_sd);
generate
if(HALF_DEPTH) begin
wire [5:0] r = mono ? {gt,rt} : {rt,rt};
wire [5:0] g = mono ? {gt,rt} : {gt,gt};
wire [5:0] b = mono ? {gt,rt} : {bt,bt};
end else begin
wire [5:0] r = rt;
wire [5:0] g = gt;
wire [5:0] b = bt;
end
endgenerate
wire hs = (scandoublerD ? HSync : hs_sd);
wire vs = (scandoublerD ? VSync : vs_sd);
reg scanline = 0;
always @(posedge clk_sys) begin
reg old_hs, old_vs;
old_hs <= hs;
old_vs <= vs;
if(old_hs && ~hs) scanline <= ~scanline;
if(old_vs && ~vs) scanline <= 0;
end
wire [5:0] r_out, g_out, b_out;
always @(*) begin
case(scanlines & {scanline, scanline})
1: begin // reduce 25% = 1/2 + 1/4
r_out = {1'b0, r[5:1]} + {2'b00, r[5:2]};
g_out = {1'b0, g[5:1]} + {2'b00, g[5:2]};
b_out = {1'b0, b[5:1]} + {2'b00, b[5:2]};
end
2: begin // reduce 50% = 1/2
r_out = {1'b0, r[5:1]};
g_out = {1'b0, g[5:1]};
b_out = {1'b0, b[5:1]};
end
3: begin // reduce 75% = 1/4
r_out = {2'b00, r[5:2]};
g_out = {2'b00, g[5:2]};
b_out = {2'b00, b[5:2]};
end
default: begin
r_out = r;
g_out = g;
b_out = b;
end
endcase
end
wire [5:0] red, green, blue;
osd #(OSD_X_OFFSET, OSD_Y_OFFSET, OSD_COLOR) osd
(
.*,
.R_in(r_out),
.G_in(g_out),
.B_in(b_out),
.HSync(hs),
.VSync(vs),
.R_out(red),
.G_out(green),
.B_out(blue)
);
wire [5:0] yuv_full[225] = '{
6'd0, 6'd0, 6'd0, 6'd0, 6'd1, 6'd1, 6'd1, 6'd1,
6'd2, 6'd2, 6'd2, 6'd3, 6'd3, 6'd3, 6'd3, 6'd4,
6'd4, 6'd4, 6'd5, 6'd5, 6'd5, 6'd5, 6'd6, 6'd6,
6'd6, 6'd7, 6'd7, 6'd7, 6'd7, 6'd8, 6'd8, 6'd8,
6'd9, 6'd9, 6'd9, 6'd9, 6'd10, 6'd10, 6'd10, 6'd11,
6'd11, 6'd11, 6'd11, 6'd12, 6'd12, 6'd12, 6'd13, 6'd13,
6'd13, 6'd13, 6'd14, 6'd14, 6'd14, 6'd15, 6'd15, 6'd15,
6'd15, 6'd16, 6'd16, 6'd16, 6'd17, 6'd17, 6'd17, 6'd17,
6'd18, 6'd18, 6'd18, 6'd19, 6'd19, 6'd19, 6'd19, 6'd20,
6'd20, 6'd20, 6'd21, 6'd21, 6'd21, 6'd21, 6'd22, 6'd22,
6'd22, 6'd23, 6'd23, 6'd23, 6'd23, 6'd24, 6'd24, 6'd24,
6'd25, 6'd25, 6'd25, 6'd25, 6'd26, 6'd26, 6'd26, 6'd27,
6'd27, 6'd27, 6'd27, 6'd28, 6'd28, 6'd28, 6'd29, 6'd29,
6'd29, 6'd29, 6'd30, 6'd30, 6'd30, 6'd31, 6'd31, 6'd31,
6'd31, 6'd32, 6'd32, 6'd32, 6'd33, 6'd33, 6'd33, 6'd33,
6'd34, 6'd34, 6'd34, 6'd35, 6'd35, 6'd35, 6'd35, 6'd36,
6'd36, 6'd36, 6'd36, 6'd37, 6'd37, 6'd37, 6'd38, 6'd38,
6'd38, 6'd38, 6'd39, 6'd39, 6'd39, 6'd40, 6'd40, 6'd40,
6'd40, 6'd41, 6'd41, 6'd41, 6'd42, 6'd42, 6'd42, 6'd42,
6'd43, 6'd43, 6'd43, 6'd44, 6'd44, 6'd44, 6'd44, 6'd45,
6'd45, 6'd45, 6'd46, 6'd46, 6'd46, 6'd46, 6'd47, 6'd47,
6'd47, 6'd48, 6'd48, 6'd48, 6'd48, 6'd49, 6'd49, 6'd49,
6'd50, 6'd50, 6'd50, 6'd50, 6'd51, 6'd51, 6'd51, 6'd52,
6'd52, 6'd52, 6'd52, 6'd53, 6'd53, 6'd53, 6'd54, 6'd54,
6'd54, 6'd54, 6'd55, 6'd55, 6'd55, 6'd56, 6'd56, 6'd56,
6'd56, 6'd57, 6'd57, 6'd57, 6'd58, 6'd58, 6'd58, 6'd58,
6'd59, 6'd59, 6'd59, 6'd60, 6'd60, 6'd60, 6'd60, 6'd61,
6'd61, 6'd61, 6'd62, 6'd62, 6'd62, 6'd62, 6'd63, 6'd63,
6'd63
};
// http://marsee101.blog19.fc2.com/blog-entry-2311.html
// Y = 16 + 0.257*R + 0.504*G + 0.098*B (Y = 0.299*R + 0.587*G + 0.114*B)
// Pb = 128 - 0.148*R - 0.291*G + 0.439*B (Pb = -0.169*R - 0.331*G + 0.500*B)
// Pr = 128 + 0.439*R - 0.368*G - 0.071*B (Pr = 0.500*R - 0.419*G - 0.081*B)
wire [18:0] y_8 = 19'd04096 + ({red, 8'd0} + {red, 3'd0}) + ({green, 9'd0} + {green, 2'd0}) + ({blue, 6'd0} + {blue, 5'd0} + {blue, 2'd0});
wire [18:0] pb_8 = 19'd32768 - ({red, 7'd0} + {red, 4'd0} + {red, 3'd0}) - ({green, 8'd0} + {green, 5'd0} + {green, 3'd0}) + ({blue, 8'd0} + {blue, 7'd0} + {blue, 6'd0});
wire [18:0] pr_8 = 19'd32768 + ({red, 8'd0} + {red, 7'd0} + {red, 6'd0}) - ({green, 8'd0} + {green, 6'd0} + {green, 5'd0} + {green, 4'd0} + {green, 3'd0}) - ({blue, 6'd0} + {blue , 3'd0});
wire [7:0] y = ( y_8[17:8] < 16) ? 8'd16 : ( y_8[17:8] > 235) ? 8'd235 : y_8[15:8];
wire [7:0] pb = (pb_8[17:8] < 16) ? 8'd16 : (pb_8[17:8] > 240) ? 8'd240 : pb_8[15:8];
wire [7:0] pr = (pr_8[17:8] < 16) ? 8'd16 : (pr_8[17:8] > 240) ? 8'd240 : pr_8[15:8];
assign VGA_R = ypbpr ? (ypbpr_full ? yuv_full[pr-8'd16] : pr[7:2]) : red;
assign VGA_G = ypbpr ? (ypbpr_full ? yuv_full[y -8'd16] : y[7:2]) : green;
assign VGA_B = ypbpr ? (ypbpr_full ? yuv_full[pb-8'd16] : pb[7:2]) : blue;
assign VGA_VS = (scandoublerD | ypbpr) ? 1'b1 : ~vs_sd;
assign VGA_HS = scandoublerD ? ~(HSync ^ VSync) : ypbpr ? ~(hs_sd ^ vs_sd) : ~hs_sd;
endmodule

12
Arcade_MiST/Atari BW Raster Hardware/Canyon_Bomber_MiST/rtl/whistle.vhd
View File

@ -25,7 +25,7 @@ generic(
constant Freq_tune : integer := 50 -- Value from 0-100 used to tune the overall whistle sound frequency
);
port(
clk_6 : in std_logic;
clk_12 : in std_logic;
Ena_3k : in std_logic; -- Saves some logic since this signal is already used elsewhere
Whistle_trig : in std_logic; -- Active-high trigger for whistle sound
Whistle_out : out std_logic_vector(3 downto 0) -- Whistle output
@ -44,11 +44,11 @@ begin
-- downward as a capacitor discharges through a resistor. This simulates that functionality by
-- incrementing a value on each cycle of ena_3k, this value is then used to alter the frequency
-- of the whistle.
RC_pitchbend: process(clk_6, ena_3k, Whistle_trig)
RC_pitchbend: process(clk_12, ena_3k, Whistle_trig)
begin
if Whistle_trig = '0' then
Pitch_bend <= 0;
elsif rising_edge(clk_6) then
elsif rising_edge(clk_12) then
if ena_3k = '1' then
if Pitch_bend < 30000 then
Pitch_bend <= pitch_bend + 1;
@ -62,12 +62,12 @@ end process;
-- the frequency. This is a constant which can be adjusted by changing the value of freq_tune, here a setting of
-- 0 to 100 results in a ramp_term value ranging from 1000 to 3000 to simulate the function of the frequency
-- adjustment pot in the original hardware.
Ramp_term <= 2800 - (20 * Freq_tune);
Ramp_term <= (2800 - (20 * Freq_tune))*2;
-- Variable frequency oscillator roughly approximating the function of a 555 astable oscillator
Ramp_osc: process(clk_6, pitch_bend)
Ramp_osc: process(clk_12, pitch_bend)
begin
if rising_edge(clk_6) then
if rising_edge(clk_12) then
Ramp_count <= Ramp_count + 1;
if Ramp_count > Ramp_term + Pitch_bend / 2 then
Ramp_count <= 0;