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Merge pull request #86 from gyurco/master

Zaxxon with sound
This commit is contained in:
Marcel 2020-04-03 18:28:04 +02:00 committed by GitHub
commit e757094287
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10 changed files with 444 additions and 115 deletions

2
.gitignore vendored
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@ -1,6 +1,6 @@
build_id.v
db
history.db
greybox_tmp
incremental_db
output_files

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@ -1,6 +1,17 @@
-- Zaxxon port to MiST
-- no sound
-- need ZAXXON.ROM on the SD Card
--
-- Usage:
-- Create ZAXXON.ROM from MAME ROM zaxxon.zip file using the mra utility and the Zaxxon.mra file.
-- Example: mra -A -z /path/to/mame/roms Zaxxon.mra
-- Create the sound ROM file from MAME WAVE ROM zaxxon.zip (rename it to zaxxon_sample.zip) file
-- using the mra utility and the Zaxxon_sound.mra file.
-- Example: mra -A -z /path/to/mame/roms Zaxxon_sound.mra
-- Concatenate the zaxxon.rom and Zaxxound.rom into ZAXXON.ROM.
-- Copy the ZAXXON.ROM file to the root of the SD Card.
--
-- Sound is optional, if you created the ROM with the samples, then enable sound in the OSD menu!
--
-- MRA utilty: https://github.com/sebdel/mra-tools-c
--
---------------------------------------------------------------------------------
-- DE10_lite Top level for Zaxxon by Dar (darfpga@aol.fr) (23/11/2019)

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@ -41,7 +41,7 @@
# ========================
set_global_assignment -name PROJECT_OUTPUT_DIRECTORY output_files
set_global_assignment -name NUM_PARALLEL_PROCESSORS ALL
set_global_assignment -name LAST_QUARTUS_VERSION 13.1
set_global_assignment -name LAST_QUARTUS_VERSION "13.1 SP4.26"
set_global_assignment -name PRE_FLOW_SCRIPT_FILE "quartus_sh:rtl/build_id.tcl"
# Pin & Location Assignments
@ -217,6 +217,7 @@ set_global_assignment -name ENABLE_SIGNALTAP OFF
set_global_assignment -name USE_SIGNALTAP_FILE output_files/zaxx.stp
set_global_assignment -name SYSTEMVERILOG_FILE rtl/Zaxxon_MiST.sv
set_global_assignment -name VHDL_FILE rtl/zaxxon.vhd
set_global_assignment -name VHDL_FILE rtl/zaxxon_sound.vhd
set_global_assignment -name VERILOG_FILE rtl/pll_mist.v
set_global_assignment -name SYSTEMVERILOG_FILE rtl/sdram.sv
set_global_assignment -name VHDL_FILE rtl/dpram.vhd

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@ -0,0 +1,34 @@
<misterromdescription>
<name>Zaxxon</name>
<mameversion>0193</mameversion>
<mratimestamp>202003290000</mratimestamp>
<year>1982</year>
<manufacturer>Sega/Gremlin</manufacturer>
<category>Isometric Shoot'em up</category>
<category>Space</category>
<setname>zaxxon</setname>
<rbf>zaxxon</rbf>
<rom index="0" zip="zaxxon.zip" md5="ff0c5218a2c94a58c5e84b9bb56ccf54">
<part crc="6e2b4a30" name="zaxxon_rom3d.u27"/>
<part crc="1c9ea398" name="zaxxon_rom2d.u28"/>
<part crc="1c123ef9" name="zaxxon_rom1d.u29"/>
<part crc="1c123ef9" name="zaxxon_rom1d.u29"/>
<part crc="1c123ef9" name="zaxxon_rom1d.u29"/>
<part crc="28d65063" name="zaxxon_rom8.u91"/>
<part crc="6284c200" name="zaxxon_rom7.u90"/>
<part crc="a95e61fd" name="zaxxon_rom10.u93"/>
<part crc="7e42691f" name="zaxxon_rom9.u92"/>
<part crc="07bf8c52" name="zaxxon_rom14.u68"/>
<part crc="c215edcb" name="zaxxon_rom15.u69"/>
<part crc="6e07bb68" name="zaxxon_rom6.u113"/>
<part crc="0a5bce6a" name="zaxxon_rom5.u112"/>
<part crc="a5bf1465" name="zaxxon_rom4.u111"/>
<part crc="eaf0dd4b" name="zaxxon_rom11.u77"/>
<part crc="1c5369c7" name="zaxxon_rom12.u78"/>
<part crc="ab4e8a9a" name="zaxxon_rom13.u79"/>
<part crc="6cc6695b" name="mro16.u76"/>
<part crc="deaa21f7" name="zaxxon.u72"/>
</rom>
</misterromdescription>

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@ -0,0 +1,16 @@
<misterromdescription>
<rom index="0" zip="zaxxon_samples.zip" md5="3b9bfc168a09b904e7a18a6b5a6f45e1">
<part crc="E6528D9E" name="00.wav"/>
<part crc="AC9441DB" name="01.wav"/>
<part crc="580B4E60" name="02.wav"/>
<part crc="87A820AA" name="03.wav"/>
<part crc="F1B68A58" name="04.wav"/>
<part crc="CCF9619D" name="05.wav"/>
<part crc="67B30407" name="08.wav"/>
<part crc="01725AAA" name="10.wav"/>
<part crc="9F0E6086" name="11.wav"/>
<part crc="1CEBA559" name="20.wav"/>
<part crc="2ADCDFBB" name="21.wav"/>
<part crc="6AFDE55B" name="23.wav"/>
</rom>
</misterromdescription>

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@ -38,8 +38,11 @@ localparam CONF_STR = {
"O5,Blend,Off,On;",
"O6,Flip,Off,On;",
"O7,Service,Off,On;",
"O8,Sound,Off,On;",
"O9A,Lives,3,5,4,Free ships;",
"OBC,Extra ship,40k,20k,30k,10k;",
"T0,Reset;",
"V,v1.0.",`BUILD_DATE
"V,v2.0.",`BUILD_DATE
};
wire rotate = status[2];
@ -47,6 +50,11 @@ wire [1:0] scanlines = status[4:3];
wire blend = status[5];
wire flip = status[6];
wire service = status[7];
wire sound = status[8];
wire [1:0] ships = ~status[10:9];
wire [1:0] extraship = status[12:11];
wire [7:0] sw1 = {1'b0, sound, ships, 2'b11, extraship }; // cocktail(1) / sound(1) / ships(2) / N.U.(2) / extra ship (2)
assign LED = ~ioctl_downl;
assign SDRAM_CLK = clk_sd;
@ -67,9 +75,36 @@ wire [1:0] buttons;
wire [1:0] switches;
wire [7:0] joystick_0;
wire [7:0] joystick_1;
wire key_pressed;
wire key_strobe;
wire [7:0] key_code;
wire scandoublerD;
wire ypbpr;
wire [15:0] audio_r,audio_l;
wire no_csync;
user_io #(
.STRLEN(($size(CONF_STR)>>3)))
user_io(
.clk_sys (clk_sys ),
.conf_str (CONF_STR ),
.SPI_CLK (SPI_SCK ),
.SPI_SS_IO (CONF_DATA0 ),
.SPI_MISO (SPI_DO ),
.SPI_MOSI (SPI_DI ),
.buttons (buttons ),
.switches (switches ),
.scandoubler_disable (scandoublerD ),
.ypbpr (ypbpr ),
.no_csync (no_csync ),
.key_strobe (key_strobe ),
.key_pressed (key_pressed ),
.key_code (key_code ),
.joystick_0 (joystick_0 ),
.joystick_1 (joystick_1 ),
.status (status )
);
wire [15:0] audio_l;
wire hs, vs, cs, hb, vb;
wire blankn;
wire [2:0] g, r;
@ -78,6 +113,8 @@ wire [14:0] rom_addr;
wire [15:0] rom_do;
wire [13:0] gfx_addr;
wire [15:0] gfx_do;
wire [19:0] wave_addr;
wire [15:0] wave_do;
wire ioctl_downl;
wire [7:0] ioctl_index;
wire ioctl_wr;
@ -87,7 +124,7 @@ wire [7:0] ioctl_dout;
// ROM structure
// 00000-06FFF CPU ROM 28k u27-u28-u29-u29-u29
// 07000-0EFFF Tiledata 32k u91-u90-u93-u92
// 0FOOO-0F7FF char1 2k u68
// 0F000-0F7FF char1 2k u68
// 0F800-0FFFF char2 2k u69
// 10000-05FFF bg 24k u113-u112-u111
// 16000-1BFFF spr 24k u77-u78-u79
@ -109,7 +146,7 @@ data_io data_io(
wire [24:0] gfx_ioctl_addr = ioctl_addr - 16'h7000;
reg port1_req, port2_req;
sdram sdram(
sdram #(36) sdram(
.*,
.init_n ( pll_locked ),
.clk ( clk_sd ),
@ -125,6 +162,8 @@ sdram sdram(
.cpu1_addr ( ioctl_downl ? 16'hffff : {2'b00, rom_addr[14:1]}),
.cpu1_q ( rom_do ),
.snd_addr ( wave_addr[19:1] + 16'he100 ),
.snd_q ( wave_do ),
// port2 for gfx
.port2_req ( port2_req ),
@ -161,6 +200,8 @@ always @(posedge clk_sd) begin
reset <= status[0] | buttons[1] | ~rom_loaded;
end
wire dl_wr = ioctl_wr && ioctl_addr < 17'h1c200;
zaxxon zaxxon(
.clock_24(clk_sys),
.reset(reset),
@ -172,31 +213,35 @@ zaxxon zaxxon(
.video_hs(hs),
.video_vs(vs),
.video_csync(cs),
.audio_out_r(audio_r),
.audio_out_l(audio_l),
.coin1(btn_coin),
.coin2(btn_coin),
.start2(btn_two_players),
.start1(btn_one_player),
.coin1(m_coin1),
.coin2(m_coin2),
.start2(m_two_players),
.start1(m_one_player),
.left(m_left),
.right(m_right),
.up(m_up),
.down(m_down),
.fire(m_fire),
.fire(m_fireA),
.service(service),
.sw1_input(sw1), // cocktail(1) / sound(1) / ships(2) / N.U.(2) / extra ship (2)
.sw2_input(8'h33), // coin b(4) / coin a(4) -- "3" => 1c_1c
.flip_screen(flip),
.cpu_rom_addr ( rom_addr ),
.cpu_rom_addr ( rom_addr ),
.cpu_rom_do ( rom_addr[0] ? rom_do[15:8] : rom_do[7:0] ),
.map_addr ( gfx_addr ),
.map_do ( gfx_do ),
.map_addr ( gfx_addr ),
.map_do ( gfx_do ),
.wave_addr ( wave_addr ),
.wave_data ( wave_do ),
.dl_addr ( ioctl_addr[16:0] ),
.dl_data ( ioctl_dout ),
.dl_wr ( ioctl_wr )
.dl_wr ( dl_wr )
);
mist_video #(.COLOR_DEPTH(3), .SD_HCNT_WIDTH(10)) mist_video(
@ -219,74 +264,37 @@ mist_video #(.COLOR_DEPTH(3), .SD_HCNT_WIDTH(10)) mist_video(
.rotate ( {flip, rotate} ),
.scandoubler_disable(scandoublerD ),
.scanlines ( scanlines ),
.ypbpr ( ypbpr )
);
user_io #(
.STRLEN(($size(CONF_STR)>>3)))
user_io(
.clk_sys (clk_sys ),
.conf_str (CONF_STR ),
.SPI_CLK (SPI_SCK ),
.SPI_SS_IO (CONF_DATA0 ),
.SPI_MISO (SPI_DO ),
.SPI_MOSI (SPI_DI ),
.buttons (buttons ),
.switches (switches ),
.scandoubler_disable (scandoublerD ),
.ypbpr (ypbpr ),
.key_strobe (key_strobe ),
.key_pressed (key_pressed ),
.key_code (key_code ),
.joystick_0 (joystick_0 ),
.joystick_1 (joystick_1 ),
.status (status )
.ypbpr ( ypbpr ),
.no_csync ( no_csync )
);
dac #(
.C_bits(16))
dac_l(
dac(
.clk_i(clk_sys),
.res_n_i(1),
.dac_i(audio),
.dac_i(audio_l),
.dac_o(AUDIO_L)
);
wire m_up = ~rotate ? (flip ? btn_left | joystick_0[1] | joystick_1[1] : btn_right | joystick_0[0] | joystick_1[0]) : btn_up | joystick_0[3] | joystick_1[3];
wire m_down = ~rotate ? (flip ? btn_right | joystick_0[0] | joystick_1[0] : btn_left | joystick_0[1] | joystick_1[1]) : btn_down | joystick_0[2] | joystick_1[2];
wire m_left = ~rotate ? (flip ? btn_down | joystick_0[2] | joystick_1[2] : btn_up | joystick_0[3] | joystick_1[3]) : btn_left | joystick_0[1] | joystick_1[1];
wire m_right = ~rotate ? (flip ? btn_up | joystick_0[3] | joystick_1[3] : btn_down | joystick_0[2] | joystick_1[2]) : btn_right | joystick_0[0] | joystick_1[0];
wire m_fire = btn_fire1 | joystick_0[4] | joystick_1[4];
wire m_up, m_down, m_left, m_right, m_fireA, m_fireB, m_fireC, m_fireD, m_fireE, m_fireF;
wire m_up2, m_down2, m_left2, m_right2, m_fire2A, m_fire2B, m_fire2C, m_fire2D, m_fire2E, m_fire2F;
wire m_tilt, m_coin1, m_coin2, m_coin3, m_coin4, m_one_player, m_two_players, m_three_players, m_four_players;
reg btn_one_player = 0;
reg btn_two_players = 0;
reg btn_left = 0;
reg btn_right = 0;
reg btn_down = 0;
reg btn_up = 0;
reg btn_fire1 = 0;
//reg btn_fire2 = 0;
//reg btn_fire3 = 0;
reg btn_coin = 0;
wire key_pressed;
wire [7:0] key_code;
wire key_strobe;
always @(posedge clk_sys) 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_fire3 <= key_pressed; // ctrl
// 'h11: btn_fire2 <= key_pressed; // alt
'h29: btn_fire1 <= key_pressed; // Space
endcase
end
end
arcade_inputs inputs (
.clk ( clk_sys ),
.key_strobe ( key_strobe ),
.key_pressed ( key_pressed ),
.key_code ( key_code ),
.joystick_0 ( joystick_0 ),
.joystick_1 ( joystick_1 ),
.rotate ( rotate ),
.orientation ( {flip, 1'b1} ),
.joyswap ( 1'b0 ),
.oneplayer ( 1'b1 ),
.controls ( {m_tilt, m_coin4, m_coin3, m_coin2, m_coin1, m_four_players, m_three_players, m_two_players, m_one_player} ),
.player1 ( {m_fireF, m_fireE, m_fireD, m_fireC, m_fireB, m_fireA, m_up, m_down, m_left, m_right} ),
.player2 ( {m_fire2F, m_fire2E, m_fire2D, m_fire2C, m_fire2B, m_fire2A, m_up2, m_down2, m_left2, m_right2} )
);
endmodule

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@ -48,6 +48,8 @@ module sdram (
input [15:1] cpu1_addr,
output reg [15:0] cpu1_q,
input [19:1] snd_addr,
output reg [15:0] snd_q,
input port2_req,
output reg port2_ack,
@ -61,6 +63,8 @@ module sdram (
output reg [15:0] gfx_q
);
parameter MHZ = 16'd80; // 80 MHz default clock, set it to proper value to calculate refresh rate
localparam RASCAS_DELAY = 3'd2; // tRCD=20ns -> 2 cycles@<100MHz
localparam BURST_LENGTH = 3'b000; // 000=1, 001=2, 010=4, 011=8
localparam ACCESS_TYPE = 1'b0; // 0=sequential, 1=interleaved
@ -70,8 +74,8 @@ localparam NO_WRITE_BURST = 1'b1; // 0= write burst enabled, 1=only single acc
localparam MODE = { 3'b000, NO_WRITE_BURST, OP_MODE, CAS_LATENCY, ACCESS_TYPE, BURST_LENGTH};
// 64ms/8192 rows = 7.8us -> 842 cycles@108MHz
localparam RFRSH_CYCLES = 10'd842;
// 64ms/8192 rows = 7.8us
localparam RFRSH_CYCLES = 16'd78*MHZ/4'd10;
// ---------------------------------------------------------------------
// ------------------------ cycle state machine ------------------------
@ -147,16 +151,20 @@ assign SDRAM_nWE = sd_cmd[0];
reg [24:1] addr_latch[2];
reg [24:1] addr_latch_next[2];
reg [15:1] addr_last[2];
reg [19:1] addr_last[2];
reg [15:1] addr_last2[2];
reg [15:0] din_latch[2];
reg [1:0] oe_latch;
reg [1:0] we_latch;
reg [1:0] ds[2];
reg port1_state;
reg port2_state;
localparam PORT_NONE = 2'd0;
localparam PORT_CPU1 = 2'd1;
localparam PORT_REQ = 2'd2;
localparam PORT_SND = 2'd2;
localparam PORT_REQ = 2'd3;
localparam PORT_GFX = 2'd1;
@ -172,12 +180,15 @@ always @(*) begin
if (refresh) begin
next_port[0] = PORT_NONE;
addr_latch_next[0] = addr_latch[0];
end else if (port1_req ^ port1_ack) begin
end else if (port1_req ^ port1_state) begin
next_port[0] = PORT_REQ;
addr_latch_next[0] = { 1'b0, port1_a };
end else if (cpu1_addr != addr_last[PORT_CPU1]) begin
next_port[0] = PORT_CPU1;
addr_latch_next[0] = { 9'd0, cpu1_addr };
end else if (snd_addr != addr_last[PORT_SND]) begin
next_port[0] = PORT_SND;
addr_latch_next[0] = { 5'd0, snd_addr };
end else begin
next_port[0] = PORT_NONE;
addr_latch_next[0] = addr_latch[0];
@ -186,7 +197,7 @@ end
// PORT2: bank 2,3
always @(*) begin
if (port2_req ^ port2_ack) begin
if (port2_req ^ port2_state) begin
next_port[1] = PORT_REQ;
addr_latch_next[1] = { 1'b1, port2_a };
end else if (gfx_addr != addr_last2[PORT_GFX]) begin
@ -238,11 +249,12 @@ always @(posedge clk) begin
sd_cmd <= CMD_ACTIVE;
SDRAM_A <= addr_latch_next[0][22:10];
SDRAM_BA <= addr_latch_next[0][24:23];
addr_last[next_port[0]] <= addr_latch_next[0][15:1];
addr_last[next_port[0]] <= addr_latch_next[0][19:1];
if (next_port[0] == PORT_REQ) begin
{ oe_latch[0], we_latch[0] } <= { ~port1_we, port1_we };
ds[0] <= port1_ds;
din_latch[0] <= port1_d;
port1_state <= port1_req;
end else begin
{ oe_latch[0], we_latch[0] } <= 2'b10;
ds[0] <= 2'b11;
@ -266,6 +278,7 @@ always @(posedge clk) begin
{ oe_latch[1], we_latch[1] } <= { ~port2_we, port2_we };
ds[1] <= port2_ds;
din_latch[1] <= port2_d;
port2_state <= port2_req;
end else begin
{ oe_latch[1], we_latch[1] } <= 2'b10;
ds[1] <= 2'b11;
@ -307,6 +320,7 @@ always @(posedge clk) begin
case(port[0])
PORT_REQ: begin port1_q <= sd_din; port1_ack <= port1_req; end
PORT_CPU1: begin cpu1_q <= sd_din; end
PORT_SND: begin snd_q <= sd_din; end
default: ;
endcase;
end

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@ -146,7 +146,9 @@ port(
down_c : in std_logic;
fire_c : in std_logic;
cocktail : in std_logic;
sw1_input : in std_logic_vector( 7 downto 0);
sw2_input : in std_logic_vector( 7 downto 0);
service : in std_logic;
flip_screen : in std_logic;
@ -159,6 +161,10 @@ port(
dl_data : in std_logic_vector(7 downto 0);
dl_wr : in std_logic;
wave_addr : buffer std_logic_vector(19 downto 0);
wave_rd : out std_logic;
wave_data : in std_logic_vector(15 downto 0);
dbg_cpu_addr : out std_logic_vector(15 downto 0)
);
end zaxxon;
@ -289,8 +295,6 @@ architecture struct of zaxxon is
signal p1_input : std_logic_vector(7 downto 0);
signal p2_input : std_logic_vector(7 downto 0);
signal sw1_input : std_logic_vector(7 downto 0);
signal sw2_input : std_logic_vector(7 downto 0);
signal gen_input : std_logic_vector(7 downto 0);
signal coin1_r, coin1_mem, coin1_ena : std_logic := '0';
@ -307,6 +311,10 @@ architecture struct of zaxxon is
signal char_color_we : std_logic;
signal palette_we : std_logic;
signal port_a, port_a_r : std_logic_vector(7 downto 0); -- i8255 ports
signal port_b, port_b_r : std_logic_vector(7 downto 0);
signal port_c, port_c_r : std_logic_vector(7 downto 0);
begin
clock_vid <= clock_24;
@ -462,8 +470,6 @@ end process;
---------------------------------
p1_input <= "000" & fire & down & up & left & right ;
p2_input <= "000" & fire_c & down_c & up_c & left_c & right_c;
sw1_input <= cocktail&"111"&x"f"; -- cocktail->FF upright->7F
sw2_input <= x"33"; -- coin a/b 1c_1c
gen_input <= service & coin2_mem & coin1_mem & '0' & start2 & start1 & "00";
------------------------------------------
@ -526,7 +532,12 @@ begin
if (cpu_addr and x"E0FF") = x"E0F9" then bg_position(10 downto 8) <= not cpu_do(2 downto 0); end if; -- E0F9 + mirroring 1F00
if (cpu_addr and x"E0FF") = x"E0FA" then bg_color_ref <= cpu_do(0); end if; -- E0FA + mirroring 1F00
if (cpu_addr and x"E0FF") = x"E0FB" then bg_enable <= cpu_do(0); end if; -- E0FB + mirroring 1F00
-- (i8255 trivial mode 0)
if (cpu_addr and x"E0FF") = x"E03C" then port_a <= cpu_do; port_a_r <= port_a; end if; -- E03C + mirroring 1F00
if (cpu_addr and x"E0FF") = x"E03D" then port_b <= cpu_do; port_b_r <= port_b; end if; -- E03D + mirroring 1F00
if (cpu_addr and x"E0FF") = x"E03E" then port_c <= cpu_do; port_c_r <= port_c; end if; -- E03E + mirroring 1F00
end if;
if int_on = '0' then
@ -1084,28 +1095,25 @@ port map(
);
palette_we <= '1' when dl_wr = '1' and dl_addr(16 downto 8) = "111000000" else '0'; --1C000-1C0FF
--zaxxon_sound_board
--sound_board : entity work.tron_sound_board
--port map(
-- clock_40 => clock_40,
-- reset => reset,
--
-- main_cpu_addr => cpu_addr(7 downto 0),
--
-- ssio_iowe => ssio_iowe,
-- ssio_di => cpu_do,
-- ssio_do => ssio_do,
--
-- input_0 => input_0,
-- input_1 => input_1,
-- input_2 => input_2,
-- input_3 => input_3,
-- input_4 => input_4,
--
-- separate_audio => separate_audio,
-- audio_out_l => audio_out_l,
-- audio_out_r => audio_out_r,
--
-- dbg_cpu_addr => open --dbg_cpu_addr
--);
--zaxxon_sound_board
sound_board : entity work.zaxxon_sound
port map(
clock_24 => clock_24,
reset => reset,
port_a => port_a,
port_a_r => port_a_r,
port_b => port_b,
port_b_r => port_b_r,
port_c => port_c,
port_c_r => port_c_r,
audio_out_l => audio_out_l,
audio_out_r => audio_out_r,
wave_addr => wave_addr,
wave_rd => wave_rd,
wave_data => wave_data
);
end struct;

View File

@ -0,0 +1,237 @@
----------------
-- Wave player --
-----------------
-- Zaxxon sample wav files info header - start/stop addresses as loaded in SDRAM
--00.wav e:RIFF n:1 sr:44100 br:88200 al:2 bps:16 lg: 29970 start: 44 (x0002C) stop: 30014 (x0753E)
--01.wav e:RIFF n:1 sr:44100 br:88200 al:2 bps:16 lg: 17798 start: 30058 (x0756A) stop: 47856 (x0BAF0)
--02.wav e:RIFF n:1 sr:44100 br:88200 al:2 bps:16 lg: 63596 start: 47900 (x0BB1C) stop:111496 (x1B388)
--03.wav e:RIFF n:1 sr:44100 br:88200 al:2 bps:16 lg: 40420 start:111540 (x1B3B4) stop:151960 (x25198)
--04.wav e:RIFF n:1 sr:44100 br:88200 al:2 bps:16 lg: 66294 start:152004 (x251C4) stop:218298 (x354BA)
--05.wav e:RIFF n:1 sr:44100 br:88200 al:2 bps:16 lg: 56038 start:218342 (x354E6) stop:274380 (x42FCC)
--08.wav e:RIFF n:1 sr:44100 br:88200 al:2 bps:16 lg:104692 start:274424 (x42FF8) stop:379116 (x5C8EC)
--10.wav e:RIFF n:1 sr:22050 br:44100 al:2 bps:16 lg:168970 start:379160 (x5C918) stop:548130 (x85D22)
--11.wav e:RIFF n:1 sr:44100 br:88200 al:2 bps:16 lg:154144 start:548174 (x85D4E) stop:702318 (xAB76E)
--20.wav e:RIFF n:1 sr:44100 br:88200 al:2 bps:16 lg: 4128 start:702362 (xAB79A) stop:706490 (xAC7BA)
--21.wav e:RIFF n:1 sr:44100 br:88200 al:2 bps:16 lg: 6854 start:706534 (xAC7E6) stop:713388 (xAE2AC)
--23.wav e:RIFF n:1 sr:44100 br:88200 al:2 bps:16 lg: 86978 start:713432 (xAE2D8) stop:800410 (xC369A)
-- 8255 PIA port A B C
-- PA1/PA0 PLAYER SHIP A/B - Volume 04/05.wav
--
--#0 - PA7 loop BATTLESHIP 00.wav - boss
--#1 - PA6 loop LASER 01.wav - electric field
--#2 - PA5 retrig BASE MISSILE 02.wav - missile engine
--#3 - PA4 loop HOMING MISSILE 03.wav - homing missile
--#4 - PA3 loop PLAYER SHIP D 04.wav - shuttle engine
--#5 - PA2 loop PLAYER SHIP C 05.wav - within space
--#6 - PB7 retrig CANNON 08.wav - player shot
--#7 - PB5 no retrig M-EXP 10.wav - final explode
--#8 - PB4 retrig S-EXP 11.wav - explode
--#9 - PC3 no retrig ALARM3 20.wav - low fuel
--#10 - PC2 retrig ALARM2 21.wav - enemy locked
--#11 - PC0 retrig SHOT 23.wav - coin / tourelle shot
library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_unsigned.all;
use ieee.numeric_std.all;
entity zaxxon_sound is
port(
clock_24 : in std_logic;
reset : in std_logic;
port_a : in std_logic_vector(7 downto 0);
port_a_r : in std_logic_vector(7 downto 0); -- i8255 ports
port_b : in std_logic_vector(7 downto 0);
port_b_r : in std_logic_vector(7 downto 0);
port_c : in std_logic_vector(7 downto 0);
port_c_r : in std_logic_vector(7 downto 0);
audio_out_l : out std_logic_vector(15 downto 0);
audio_out_r : out std_logic_vector(15 downto 0);
wave_addr : buffer std_logic_vector(19 downto 0);
wave_rd : out std_logic;
wave_data : in std_logic_vector(15 downto 0)
);
end zaxxon_sound;
architecture struct of zaxxon_sound is
signal wav_clk_cnt : std_logic_vector(11 downto 0); -- 44kHz divider / sound# counter
subtype snd_id_t is integer range 0 to 11;
signal snd_id : snd_id_t;
type snd_addr_t is array(snd_id_t) of std_logic_vector(19 downto 0);
-- wave current addresses in sdram
signal snd_addrs : snd_addr_t;
-- wave start addresses in sdram
signal snd_starts : snd_addr_t := (
x"0002C",x"0756A",x"0BB1C",x"1B3B4",x"251C4",x"354E6",
x"42FF8",x"5C918",x"85D4E",x"AB79A",x"AC7E6",x"AE2D8");
-- wave end addresses in sdram
signal snd_stops : snd_addr_t := (
x"0753E",x"0BAF0",x"1B388",x"25198",x"354BA",x"42FCC",
x"5C8EC",x"85D22",x"AB76E",x"AC7BA",x"AE2AC",x"C369A");
type snd_flag_t is array(snd_id_t) of std_logic;
-- sound playing (once)
signal snd_starteds : snd_flag_t := (
'0','0','0','0','0','0','0','0','0','0','0','0');
-- sound to be restarted
signal snd_restarts : snd_flag_t := (
'0','0','0','0','0','0','0','0','0','0','0','0');
-- sound playing (loop)
signal snd_continus : snd_flag_t := (
'0','0','0','0','0','0','0','0','0','0','0','0');
-- sound sample rate 44/22kHz
signal snd_44k : snd_flag_t := (
'1','1','1','1','1','1','1','0','1','1','1','1');
-- divide 44kHz flag
signal snd_22k_flag : std_logic := '0';
-- sum all sound
signal audio_r, audio_sum : signed(19 downto 0);
signal ship_vol, volume : signed( 7 downto 0);
signal audio_vol : signed(23 downto 0);
begin
-- scan sound# from 0-11
snd_id <= to_integer(unsigned(wav_clk_cnt(8 downto 5)));
-- apply volume to sdram (wav file) data w.r.t port_a and snd_id
with port_a(1 downto 0) select
ship_vol <= x"10" when "00",
x"20" when "01",
x"30" when "10",
x"40" when others;
with snd_id select
volume <= ship_vol when 4,
ship_vol when 5,
x"7F" when others;
audio_vol <= (signed(wave_data) * volume) / 128;
-- wave player
process (clock_24, reset)
begin
if reset='1' then
wav_clk_cnt <= (others=>'0');
else
if rising_edge(clock_24) then
-- sound triggers
snd_continus( 0) <= not port_a(7); -- boss
snd_continus( 1) <= not port_a(6); -- electric field
snd_starteds( 2) <= snd_starteds( 2) or (not(port_a(5)) and port_a_r(5)); -- missile engine
snd_restarts( 2) <= snd_restarts( 2) or (not(port_a(5)) and port_a_r(5));
snd_continus( 3) <= not port_a(4); -- homing missile
snd_continus( 4) <= not port_a(3); -- shuttle engine
snd_continus( 5) <= not port_a(2); -- within space
snd_starteds( 6) <= snd_starteds( 6) or (not(port_b(7)) and port_b_r(7)); -- player shot
snd_restarts( 6) <= snd_restarts( 6) or (not(port_b(7)) and port_b_r(7));
snd_starteds( 7) <= snd_starteds( 7) or (not(port_b(5)) and port_b_r(5)); -- final explode
snd_starteds( 8) <= snd_starteds( 8) or (not(port_b(4)) and port_b_r(4)); -- explode
snd_restarts( 8) <= snd_restarts( 8) or (not(port_b(4)) and port_b_r(4));
snd_starteds( 9) <= snd_starteds( 9) or (not(port_c(3)) and port_c_r(3)); -- low fuel
snd_starteds(10) <= snd_starteds(10) or (not(port_c(2)) and port_c_r(2)); -- enemy locked
snd_restarts(10) <= snd_restarts(10) or (not(port_c(2)) and port_c_r(2));
snd_starteds(11) <= snd_starteds(11) or (not(port_c(0)) and port_c_r(0)); -- coin / tourelle shot
snd_restarts(11) <= snd_restarts(11) or (not(port_c(0)) and port_c_r(0));
-- 44.1kHz base tempo / high bits for scanning sound#
if wav_clk_cnt = x"21F" then -- divide 24MHz by 544 => 44.117kHz
wav_clk_cnt <= (others=>'0');
snd_22k_flag <= not snd_22k_flag; -- divide by 2 => 22.05kHz
-- latch final audio / reset sum
audio_r <= audio_sum;
audio_sum <= (others => '0');
else
wav_clk_cnt <= wav_clk_cnt + 1;
end if;
-- clip audio
if audio_r(19 downto 2) > 32767 then
audio_out_l <= x"7FFF";
elsif audio_r(19 downto 2) < -32768 then
audio_out_l <= x"8000";
else
audio_out_l <= std_logic_vector(audio_r(17 downto 2));
end if;
-- sdram read trigger (and auto refresh period)
if wav_clk_cnt(4 downto 0) = "00000" then wave_rd <= '1';end if;
if wav_clk_cnt(4 downto 0) = "00010" then wave_rd <= '0';end if;
-- select only useful cycles (0-11)
-- remaing cycles unsued
if wav_clk_cnt(11 downto 5) <= 11 then
-- set sdram addr at begining of cycle
if wav_clk_cnt(4 downto 0) = "00000" then
wave_addr <= snd_addrs(snd_id);
end if;
-- sound# currently playing
if (snd_starteds(snd_id) = '1' or snd_continus(snd_id) = '1' ) then
-- get sound# sample and update next sound# address
-- (next / restart)
if wav_clk_cnt(4 downto 0) = "10000" then
audio_sum <= audio_sum + audio_vol(15 downto 0);
if snd_restarts(snd_id) = '1' then
snd_addrs(snd_id) <= snd_starts(snd_id);
snd_restarts(snd_id) <= '0';
else
if (snd_44k(snd_id) = '1' or snd_22k_flag = '1') then
snd_addrs(snd_id) <= snd_addrs(snd_id) + 2;
end if;
end if;
end if;
-- update next sound# address
-- (stop / loop)
if snd_addrs(snd_id) >= snd_stops(snd_id) then
if snd_continus(snd_id) = '1' then
snd_addrs(snd_id) <= snd_starts(snd_id);
else
snd_starteds(snd_id) <= '0';
end if;
end if;
else
-- sound# stopped set begin address
snd_addrs(snd_id) <= snd_starts(snd_id);
end if;
end if;
end if;
end if;
end process;
end struct;