forked from birdybro/Arcade-Inferno_MiSTer
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Arcade-Inferno.sv
473 lines (397 loc) · 14.5 KB
/
Arcade-Inferno.sv
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//============================================================================
//
// This program 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 2 of the License, or (at your option)
// any later version.
//
// This program 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, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
//============================================================================
module emu
(
//Master input clock
input CLK_50M,
//Async reset from top-level module.
//Can be used as initial reset.
input RESET,
//Must be passed to hps_io module
inout [48:0] HPS_BUS,
//Base video clock. Usually equals to CLK_SYS.
output CLK_VIDEO,
//Multiple resolutions are supported using different CE_PIXEL rates.
//Must be based on CLK_VIDEO
output CE_PIXEL,
//Video aspect ratio for HDMI. Most retro systems have ratio 4:3.
//if VIDEO_ARX[12] or VIDEO_ARY[12] is set then [11:0] contains scaled size instead of aspect ratio.
output [12:0] VIDEO_ARX,
output [12:0] VIDEO_ARY,
output [7:0] VGA_R,
output [7:0] VGA_G,
output [7:0] VGA_B,
output VGA_HS,
output VGA_VS,
output VGA_DE, // = ~(VBlank | HBlank)
output VGA_F1,
output [1:0] VGA_SL,
output VGA_SCALER, // Force VGA scaler
output VGA_DISABLE, // analog out is off
input [11:0] HDMI_WIDTH,
input [11:0] HDMI_HEIGHT,
output HDMI_FREEZE,
`ifdef MISTER_FB
// Use framebuffer in DDRAM
// FB_FORMAT:
// [2:0] : 011=8bpp(palette) 100=16bpp 101=24bpp 110=32bpp
// [3] : 0=16bits 565 1=16bits 1555
// [4] : 0=RGB 1=BGR (for 16/24/32 modes)
//
// FB_STRIDE either 0 (rounded to 256 bytes) or multiple of pixel size (in bytes)
output FB_EN,
output [4:0] FB_FORMAT,
output [11:0] FB_WIDTH,
output [11:0] FB_HEIGHT,
output [31:0] FB_BASE,
output [13:0] FB_STRIDE,
input FB_VBL,
input FB_LL,
output FB_FORCE_BLANK,
`ifdef MISTER_FB_PALETTE
// Palette control for 8bit modes.
// Ignored for other video modes.
output FB_PAL_CLK,
output [7:0] FB_PAL_ADDR,
output [23:0] FB_PAL_DOUT,
input [23:0] FB_PAL_DIN,
output FB_PAL_WR,
`endif
`endif
output LED_USER, // 1 - ON, 0 - OFF.
// b[1]: 0 - LED status is system status OR'd with b[0]
// 1 - LED status is controled solely by b[0]
// hint: supply 2'b00 to let the system control the LED.
output [1:0] LED_POWER,
output [1:0] LED_DISK,
// I/O board button press simulation (active high)
// b[1]: user button
// b[0]: osd button
output [1:0] BUTTONS,
input CLK_AUDIO, // 24.576 MHz
output [15:0] AUDIO_L,
output [15:0] AUDIO_R,
output AUDIO_S, // 1 - signed audio samples, 0 - unsigned
output [1:0] AUDIO_MIX, // 0 - no mix, 1 - 25%, 2 - 50%, 3 - 100% (mono)
//ADC
inout [3:0] ADC_BUS,
//SD-SPI
output SD_SCK,
output SD_MOSI,
input SD_MISO,
output SD_CS,
input SD_CD,
//High latency DDR3 RAM interface
//Use for non-critical time purposes
output DDRAM_CLK,
input DDRAM_BUSY,
output [7:0] DDRAM_BURSTCNT,
output [28:0] DDRAM_ADDR,
input [63:0] DDRAM_DOUT,
input DDRAM_DOUT_READY,
output DDRAM_RD,
output [63:0] DDRAM_DIN,
output [7:0] DDRAM_BE,
output DDRAM_WE,
//SDRAM interface with lower latency
output SDRAM_CLK,
output SDRAM_CKE,
output [12:0] SDRAM_A,
output [1:0] SDRAM_BA,
inout [15:0] SDRAM_DQ,
output SDRAM_DQML,
output SDRAM_DQMH,
output SDRAM_nCS,
output SDRAM_nCAS,
output SDRAM_nRAS,
output SDRAM_nWE,
`ifdef MISTER_DUAL_SDRAM
//Secondary SDRAM
//Set all output SDRAM_* signals to Z ASAP if SDRAM2_EN is 0
input SDRAM2_EN,
output SDRAM2_CLK,
output [12:0] SDRAM2_A,
output [1:0] SDRAM2_BA,
inout [15:0] SDRAM2_DQ,
output SDRAM2_nCS,
output SDRAM2_nCAS,
output SDRAM2_nRAS,
output SDRAM2_nWE,
`endif
input UART_CTS,
output UART_RTS,
input UART_RXD,
output UART_TXD,
output UART_DTR,
input UART_DSR,
// Open-drain User port.
// 0 - D+/RX
// 1 - D-/TX
// 2..6 - USR2..USR6
// Set USER_OUT to 1 to read from USER_IN.
input [6:0] USER_IN,
output [6:0] USER_OUT,
input OSD_STATUS
);
///////// Default values for ports not used in this core /////////
assign ADC_BUS = 'Z;
assign USER_OUT = '1;
assign {UART_RTS, UART_TXD, UART_DTR} = 0;
assign {SD_SCK, SD_MOSI, SD_CS} = 'Z;
assign {SDRAM_DQ, SDRAM_A, SDRAM_BA, SDRAM_CLK, SDRAM_CKE, SDRAM_DQML, SDRAM_DQMH, SDRAM_nWE, SDRAM_nCAS, SDRAM_nRAS, SDRAM_nCS} = 'Z;
assign {DDRAM_CLK, DDRAM_BURSTCNT, DDRAM_ADDR, DDRAM_DIN, DDRAM_BE, DDRAM_RD, DDRAM_WE} = '0;
assign VGA_F1 = 0;
assign VGA_SCALER = 0;
assign VGA_DISABLE = 0;
assign HDMI_FREEZE = 0;
assign AUDIO_MIX = 0;
assign LED_DISK = 0;
assign LED_POWER = 0;
assign BUTTONS = 0;
//////////////////////////////////////////////////////////////////
assign LED_USER = ioctl_download;
wire [1:0] ar = status[9:8];
assign VIDEO_ARX = (!ar) ? 12'd282 : (ar - 1'd1);
assign VIDEO_ARY = (!ar) ? 12'd241 : 12'd0;
`include "build_id.v"
localparam CONF_STR = {
"A.INFERNO;;",
"-;",
"H0O[9:8],Aspect ratio,Original,Full Screen,[ARC1],[ARC2];",
"O[5:3],Scandoubler Fx,None,HQ2x,CRT 25%,CRT 50%,CRT 75%;",
"-;",
"O[13],Aim+Fire,Off,On;",
"-;",
"O[10],Advance,Off,On;",
"O[11],Auto Up,Off,On;",
"O[12],High Score Reset,Off,On;",
"-;",
"R0,Reset;",
"J1,Trigger,Start,Coin,Aim Up,Aim Down,Aim Left,Aim Right;",
"jn,R,Start,Select,X,B,Y,A;",
"V,v",`BUILD_DATE
};
wire forced_scandoubler;
wire direct_video;
wire [ 21:0] gamma_bus;
wire ioctl_download;
wire ioctl_wr;
wire [ 24:0] ioctl_addr;
wire [ 7:0] ioctl_dout;
wire [ 15:0] ioctl_index;
wire [ 1:0] buttons;
wire [127:0] status;
wire [ 10:0] ps2_key;
wire [ 31:0] joystick_0, joystick_1;
wire [ 15:0] joystick_l_analog_0, joystick_l_analog_1;
wire [ 15:0] joystick_r_analog_0, joystick_r_analog_1;
hps_io #(.CONF_STR(CONF_STR)) hps_io
(
.clk_sys(clk_sys),
.HPS_BUS(HPS_BUS),
.EXT_BUS(),
.buttons(buttons),
.status(status),
.status_menumask({direct_video}),
.forced_scandoubler(forced_scandoubler),
.gamma_bus(gamma_bus),
.direct_video(direct_video),
.ioctl_download(ioctl_download),
.ioctl_wr(ioctl_wr),
.ioctl_addr(ioctl_addr),
.ioctl_dout(ioctl_dout),
.ioctl_index(ioctl_index),
.joystick_0(joystick_0),
.joystick_1(joystick_1),
.joystick_l_analog_0(joystick_l_analog_0),
.joystick_l_analog_1(joystick_l_analog_1),
.joystick_r_analog_0(joystick_r_analog_0),
.joystick_r_analog_1(joystick_r_analog_1)
);
/////////////////////// CLOCKS ///////////////////////////////
wire clk_sys;
wire pll_locked;
wire clk_48, clk_12;
assign clk_sys = clk_12;
pll pll
(
.refclk(CLK_50M),
.rst(0),
.outclk_0(clk_48),
.outclk_1(clk_12),
.locked(pll_locked)
);
wire reset = RESET | status[0] | buttons[1];
/////////////////////// INPUTS ///////////////////////////////
logic [3:0] joyal_1, joyal_2, joyar_1, joyar_2;
logic [3:0] joy_run_1, joy_run_2, joy_aim_1, joy_aim_2;
always_comb begin
joyal_1[3] = ($signed(joystick_l_analog_0[15:8]) < -20); // Up
joyal_1[2] = ($signed(joystick_l_analog_0[15:8]) > 20); // Down
joyal_1[1] = ($signed(joystick_l_analog_0[ 7:0]) < -20); // Left
joyal_1[0] = ($signed(joystick_l_analog_0[ 7:0]) > 20); // Right
joyar_1[3] = ($signed(joystick_r_analog_0[15:8]) < -20);
joyar_1[2] = ($signed(joystick_r_analog_0[15:8]) > 20);
joyar_1[1] = ($signed(joystick_r_analog_0[ 7:0]) < -20);
joyar_1[0] = ($signed(joystick_r_analog_0[ 7:0]) > 20);
joyal_2[3] = ($signed(joystick_l_analog_1[15:8]) < -20);
joyal_2[2] = ($signed(joystick_l_analog_1[15:8]) > 20);
joyal_2[1] = ($signed(joystick_l_analog_1[ 7:0]) < -20);
joyal_2[0] = ($signed(joystick_l_analog_1[ 7:0]) > 20);
joyar_2[3] = ($signed(joystick_r_analog_1[15:8]) < -20);
joyar_2[2] = ($signed(joystick_r_analog_1[15:8]) > 20);
joyar_2[1] = ($signed(joystick_r_analog_1[ 7:0]) < -20);
joyar_2[0] = ($signed(joystick_r_analog_1[ 7:0]) > 20);
end
always_ff @(posedge clk_48) begin
if (joyal_1) begin
joy_run_1[3] <= (joyal_1[3] && joyal_1[0]); // Up-Right
joy_run_1[2] <= (joyal_1[2] && joyal_1[1]); // Down-Left
joy_run_1[1] <= (joyal_1[3] && joyal_1[1]); // Up-Left
joy_run_1[0] <= (joyal_1[2] && joyal_1[0]); // Down-Right
end else begin
joy_run_1[3] <= joystick_0[3];
joy_run_1[2] <= joystick_0[2];
joy_run_1[1] <= joystick_0[1];
joy_run_1[0] <= joystick_0[0];
end
if (joyal_2) begin
joy_run_2[3] <= (joyal_2[3] && joyal_2[0]);
joy_run_2[2] <= (joyal_2[2] && joyal_2[1]);
joy_run_2[1] <= (joyal_2[3] && joyal_2[1]);
joy_run_2[0] <= (joyal_2[2] && joyal_2[0]);
end else begin
joy_run_2[3] <= joystick_1[3];
joy_run_2[2] <= joystick_1[2];
joy_run_2[1] <= joystick_1[1];
joy_run_2[0] <= joystick_1[0];
end
end
always_comb begin
joy_aim_1[3] <= ((joyar_1[3] && joyar_1[0]) | joystick_0[7] ); // X
joy_aim_1[2] <= ((joyar_1[2] && joyar_1[1]) | joystick_0[8] ); // B
joy_aim_1[1] <= ((joyar_1[3] && joyar_1[1]) | joystick_0[9] ); // Y
joy_aim_1[0] <= ((joyar_1[2] && joyar_1[0]) | joystick_0[10]); // A
joy_aim_2[3] <= ((joyar_2[3] && joyar_2[0]) | joystick_1[7] );
joy_aim_2[2] <= ((joyar_2[2] && joyar_2[1]) | joystick_1[8] );
joy_aim_2[1] <= ((joyar_2[3] && joyar_2[1]) | joystick_1[9] );
joy_aim_2[0] <= ((joyar_2[2] && joyar_2[0]) | joystick_1[10]);
end
// These may look out of order, they are correct though (2,0,1,3)
logic [3:0] btn_run_1, btn_aim_1, btn_run_2, btn_aim_2;
assign btn_run_1 = {joy_run_1[2], joy_run_1[0], joy_run_1[1], joy_run_1[3]};
assign btn_run_2 = {joy_run_2[2], joy_run_2[0], joy_run_2[1], joy_run_2[3]};
assign btn_aim_1 = {joy_aim_1[2], joy_aim_1[0], joy_aim_1[1], joy_aim_1[3]};
assign btn_aim_2 = {joy_aim_2[2], joy_aim_2[0], joy_aim_2[1], joy_aim_2[3]};
logic btn_aimfire_1, btn_aimfire_2;
always_ff @(posedge clk_12) begin
btn_aimfire_1 <= 0;
btn_aimfire_2 <= 0;
if (btn_aim_1[3] | btn_aim_1[2] | btn_aim_1[1] | btn_aim_1[0]) btn_aimfire_1 <= 1;
if (btn_aim_2[3] | btn_aim_2[2] | btn_aim_2[1] | btn_aim_2[0]) btn_aimfire_2 <= 1;
end
logic aimfire, btn_trigger_1, btn_trigger_2, btn_start_1, btn_start_2, btn_coin;
assign aimfire = status[13];
assign btn_trigger_1 = aimfire ? btn_aimfire_1 : joystick_0[4];
assign btn_trigger_2 = aimfire ? btn_aimfire_2 : joystick_1[4];
assign btn_start_1 = joystick_0[5];
assign btn_start_2 = joystick_1[5];
assign btn_coin = joystick_0[6] | joystick_1[6];
/////////////////////// DISPLAY ///////////////////////////////
logic hblank, vblank;
logic hs, vs;
logic ce_pix;
always @(posedge clk_48) begin
logic [2:0] div;
div <= div + 1'd1;
ce_pix <= !div;
end
logic [3:0] r,g,b,intensity;
logic [7:0] ri,gi,bi;
logic [7:0] color_lut[256] = '{
8'd19, 8'd21, 8'd23, 8'd25, 8'd26, 8'd29, 8'd32, 8'd35, 8'd38, 8'd43, 8'd49, 8'd56, 8'd65, 8'd76, 8'd96, 8'd108,
8'd21, 8'd22, 8'd24, 8'd26, 8'd28, 8'd30, 8'd34, 8'd37, 8'd40, 8'd45, 8'd52, 8'd59, 8'd68, 8'd80, 8'd101, 8'd114,
8'd22, 8'd24, 8'd26, 8'd28, 8'd30, 8'd33, 8'd36, 8'd39, 8'd43, 8'd48, 8'd55, 8'd63, 8'd73, 8'd86, 8'd107, 8'd121,
8'd24, 8'd25, 8'd27, 8'd29, 8'd32, 8'd35, 8'd38, 8'd42, 8'd46, 8'd52, 8'd59, 8'd67, 8'd77, 8'd91, 8'd114, 8'd129,
8'd25, 8'd27, 8'd29, 8'd31, 8'd34, 8'd37, 8'd40, 8'd45, 8'd48, 8'd54, 8'd62, 8'd71, 8'd81, 8'd96, 8'd121, 8'd137,
8'd27, 8'd28, 8'd31, 8'd34, 8'd36, 8'd39, 8'd44, 8'd48, 8'd52, 8'd58, 8'd66, 8'd76, 8'd87, 8'd103, 8'd129, 8'd146,
8'd29, 8'd31, 8'd34, 8'd36, 8'd39, 8'd43, 8'd47, 8'd52, 8'd56, 8'd63, 8'd72, 8'd82, 8'd94, 8'd111, 8'd140, 8'd158,
8'd32, 8'd34, 8'd37, 8'd39, 8'd43, 8'd46, 8'd51, 8'd56, 8'd61, 8'd68, 8'd78, 8'd89, 8'd102, 8'd120, 8'd151, 8'd171,
8'd32, 8'd35, 8'd38, 8'd41, 8'd44, 8'd48, 8'd53, 8'd59, 8'd64, 8'd72, 8'd83, 8'd94, 8'd109, 8'd129, 8'd161, 8'd182,
8'd36, 8'd38, 8'd42, 8'd45, 8'd48, 8'd53, 8'd59, 8'd65, 8'd70, 8'd79, 8'd90, 8'd104, 8'd119, 8'd141, 8'd177, 8'd201,
8'd40, 8'd43, 8'd46, 8'd50, 8'd54, 8'd59, 8'd65, 8'd72, 8'd79, 8'd88, 8'd101, 8'd115, 8'd133, 8'd157, 8'd198, 8'd224,
8'd45, 8'd48, 8'd52, 8'd57, 8'd61, 8'd66, 8'd74, 8'd81, 8'd88, 8'd98, 8'd113, 8'd129, 8'd149, 8'd176, 8'd221, 8'd249,
8'd50, 8'd54, 8'd58, 8'd64, 8'd68, 8'd75, 8'd83, 8'd91, 8'd99, 8'd111, 8'd128, 8'd146, 8'd169, 8'd200, 8'd249, 8'd253,
8'd58, 8'd63, 8'd68, 8'd74, 8'd79, 8'd87, 8'd96, 8'd106, 8'd116, 8'd129, 8'd148, 8'd169, 8'd195, 8'd231, 8'd253, 8'd254,
8'd71, 8'd76, 8'd83, 8'd89, 8'd96, 8'd105, 8'd116, 8'd128, 8'd139, 8'd156, 8'd179, 8'd205, 8'd236, 8'd252, 8'd254, 8'd254,
8'd91, 8'd97, 8'd105, 8'd114, 8'd123, 8'd133, 8'd147, 8'd161, 8'd176, 8'd196, 8'd223, 8'd249, 8'd252, 8'd254, 8'd254, 8'd255
};
always_ff @(posedge clk_48) begin : colorPalette
ri = ~| intensity ? 8'd0 : color_lut[{r, intensity}];
gi = ~| intensity ? 8'd0 : color_lut[{g, intensity}];
bi = ~| intensity ? 8'd0 : color_lut[{b, intensity}];
end : colorPalette
arcade_video #(313,24,1) arcade_video
(
.*,
.clk_video(clk_48),
.RGB_in({ri[7:0],gi[7:0],bi[7:0]}),
.HBlank(hblank),
.VBlank(vblank),
.HSync(~hs),
.VSync(~vs),
.fx(status[5:3])
);
wire [7:0] audio;
assign AUDIO_L = {audio, 6'd0};
assign AUDIO_R = AUDIO_L;
assign AUDIO_S = 0;
/////////////////////// CORE ///////////////////////////////
williams2 williams2
(
.clock_12(clk_sys),
.reset(reset),
.video_r(r),
.video_g(g),
.video_b(b),
.video_i(intensity),
.video_hblank(hblank), // 48 <-> 1
.video_vblank(vblank), // 504 <-> 262
.video_hs(hs),
.video_vs(vs),
.audio_out(audio),
.btn_advance(status[10]),
.btn_auto_up(status[11]),
.btn_high_score_reset(status[12]),
.btn_trigger_1(btn_trigger_1),
.btn_trigger_2(btn_trigger_2),
.btn_start_1(btn_start_1),
.btn_start_2(btn_start_2),
.btn_coin(btn_coin),
.btn_run_1(btn_run_1),
.btn_run_2(btn_run_2),
.btn_aim_1(btn_aim_1),
.btn_aim_2(btn_aim_2),
.sw_coktail_table(),
.seven_seg(),
.dbg_out(),
.dn_addr(ioctl_addr[17:0]),
.dn_data(ioctl_dout),
.dn_wr(ioctl_wr && ioctl_index==0)
);
endmodule