Files
Chess_MiSTer/Chess.sv
2022-11-06 11:37:55 -07:00

290 lines
6.4 KiB
Systemverilog

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
);
assign ADC_BUS = 'Z;
assign USER_OUT = '1;
assign AUDIO_S = 0;
assign AUDIO_L = audio;
assign AUDIO_R = AUDIO_L;
assign AUDIO_MIX = 0;
assign LED_USER = 0;
assign LED_DISK = 0;
assign LED_POWER = 0;
assign BUTTONS = 0;
assign VIDEO_ARX = status[8] ? 8'd16 : 8'd4;
assign VIDEO_ARY = status[8] ? 8'd9 : 8'd3;
assign VGA_F1 = 0;
assign VGA_SCALER = 0;
assign VGA_DISABLE = 0;
assign HDMI_FREEZE = 0;
assign {UART_RTS, UART_TXD, UART_DTR} = 0;
assign {SDRAM_DQ, SDRAM_A, SDRAM_BA, SDRAM_CKE, SDRAM_CLK, 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 {SD_SCK, SD_MOSI, SD_CS} = 'Z;
`include "build_id.v"
parameter CONF_STR = {
"Chess;;",
"-;",
"O7,Opponent,AI,Human;",
"O46,AI Strength,1,2,3,4,5,6,7;",
"O23,AI Randomness,0,1,2,3;",
"O1,Player Color,White,Black;",
"O9,Boardview,White,Black;",
"OA,Overlay,Off,On;",
"-;",
"O8,Aspect Ratio,4:3,16:9;",
"-;",
"R0,Reset;",
"J1,Action,Cancel,SaveState,LoadState,Rewind;",
"jn,A,B;",
"jp,A,B;",
"V,v",`BUILD_DATE
};
wire reset = RESET | status[0] | buttons[1];
wire [21:0] gamma_bus;
wire [63:0] status;
wire [2:0] buttons;
wire [15:0] joyA;
hps_io #(.CONF_STR(CONF_STR)) hps_io
(
.clk_sys(clk),
.HPS_BUS(HPS_BUS),
.buttons(buttons),
.joystick_0(joyA),
.status(status),
.gamma_bus(gamma_bus)
);
wire clk;
pll pll
(
.refclk(CLK_50M),
.outclk_0(clk)
);
wire [15:0] audio = {1'b0, speaker, 14'd0};
wire speaker;
wire vsync, hsync, vblank, hblank;
wire [7:0] red, green, blue;
TopModule Chess (
.Clk(clk),
.reset(reset),
.mirrorBoard(status[9]),
.aiOn(~status[7]),
.strength(status[6:4]),
.randomness(status[3:2]),
.playerBlack(status[1]),
.overlayOn(status[10]),
.input_up(joyA[3]),
.input_down(joyA[2]),
.input_left(joyA[1]),
.input_right(joyA[0]),
.input_action(joyA[4]),
.input_cancel(joyA[5]),
.input_save(joyA[6]),
.input_load(joyA[7]),
.input_rewind(joyA[8]),
.vga_h_sync(hsync),
.vga_v_sync(vsync),
.vga_h_blank(hblank),
.vga_v_blank(vblank),
.vga_R(red),
.vga_G(green),
.vga_B(blue),
.Speaker(speaker)
);
assign VGA_F1 = 0;
assign VGA_SL = 0;
assign CLK_VIDEO = clk;
assign CE_PIXEL = 1;
gamma_fast gamma
(
.clk_vid(CLK_VIDEO),
.ce_pix(1),
.gamma_bus(gamma_bus),
.HSync(hsync),
.VSync(vsync),
.DE(~(hblank | vblank)),
.RGB_in({red, green, blue}),
.HSync_out(VGA_HS),
.VSync_out(VGA_VS),
.DE_out(VGA_DE),
.RGB_out({VGA_R, VGA_G, VGA_B})
);
endmodule