mirror of
https://github.com/Gehstock/Mist_FPGA.git
synced 2026-02-25 00:07:31 +00:00
270 lines
7.4 KiB
Systemverilog
270 lines
7.4 KiB
Systemverilog
module TimePilot84_MiST (
|
|
output LED,
|
|
output [5:0] VGA_R,
|
|
output [5:0] VGA_G,
|
|
output [5:0] VGA_B,
|
|
output VGA_HS,
|
|
output VGA_VS,
|
|
output AUDIO_L,
|
|
output AUDIO_R,
|
|
input SPI_SCK,
|
|
output SPI_DO,
|
|
input SPI_DI,
|
|
input SPI_SS2,
|
|
input SPI_SS3,
|
|
input CONF_DATA0,
|
|
input CLOCK_27,
|
|
output [12:0] SDRAM_A,
|
|
inout [15:0] SDRAM_DQ,
|
|
output SDRAM_DQML,
|
|
output SDRAM_DQMH,
|
|
output SDRAM_nWE,
|
|
output SDRAM_nCAS,
|
|
output SDRAM_nRAS,
|
|
output SDRAM_nCS,
|
|
output [1:0] SDRAM_BA,
|
|
output SDRAM_CLK,
|
|
output SDRAM_CKE
|
|
|
|
);
|
|
|
|
`include "rtl\build_id.v"
|
|
|
|
localparam CONF_STR = {
|
|
"TP84;;",
|
|
"O2,Rotate Controls,Off,On;",
|
|
"O34,Scanlines,Off,25%,50%,75%;",
|
|
"O5,Blend,Off,On;",
|
|
"O6,Joystick Swap,Off,On;",
|
|
"O7,Service,Off,On;",
|
|
"DIP;",
|
|
"T0,Reset;",
|
|
"V,v1.00.",`BUILD_DATE
|
|
};
|
|
|
|
wire rotate = status[2];
|
|
wire [1:0] scanlines = status[4:3];
|
|
wire blend = status[5];
|
|
wire joyswap = status[6];
|
|
wire service = status[7];
|
|
wire [1:0] orientation = 2'b11;
|
|
wire [15:0] dip_sw = ~status[23:8];
|
|
|
|
assign LED = ~ioctl_downl;
|
|
assign SDRAM_CLK = clock_48;
|
|
assign SDRAM_CKE = 1;
|
|
assign AUDIO_R = AUDIO_L;
|
|
|
|
wire clock_48, clock_14, pll_locked;
|
|
pll pll(
|
|
.inclk0(CLOCK_27),
|
|
.c0(clock_48),//49.152MHz
|
|
.c1(clock_14),//14.31818MHz
|
|
.locked(pll_locked)
|
|
);
|
|
|
|
wire [31:0] status;
|
|
wire [1:0] buttons;
|
|
wire [1:0] switches;
|
|
wire [7:0] joystick_0;
|
|
wire [7:0] joystick_1;
|
|
wire scandoublerD;
|
|
wire ypbpr;
|
|
wire no_csync;
|
|
wire [6:0] core_mod;
|
|
wire [15:0] audio;
|
|
wire hs, vs, cs;
|
|
wire hb, vb;
|
|
wire blankn = ~(hb | vb);
|
|
wire [3:0] r, g, b;
|
|
wire key_strobe;
|
|
wire key_pressed;
|
|
wire [7:0] key_code;
|
|
|
|
wire [15:0] main_rom_addr;
|
|
wire [15:0] main_rom_do;
|
|
wire [12:0] sub_rom_addr;
|
|
wire [15:0] sub_rom_do;
|
|
wire [12:0] bg_addr;
|
|
wire [15:0] bg_do;
|
|
|
|
wire ioctl_downl;
|
|
wire [7:0] ioctl_index;
|
|
wire ioctl_wr;
|
|
wire [24:0] ioctl_addr;
|
|
wire [7:0] ioctl_dout;
|
|
|
|
data_io data_io(
|
|
.clk_sys ( clock_48 ),
|
|
.SPI_SCK ( SPI_SCK ),
|
|
.SPI_SS2 ( SPI_SS2 ),
|
|
.SPI_DI ( SPI_DI ),
|
|
.ioctl_download( ioctl_downl ),
|
|
.ioctl_index ( ioctl_index ),
|
|
.ioctl_wr ( ioctl_wr ),
|
|
.ioctl_addr ( ioctl_addr ),
|
|
.ioctl_dout ( ioctl_dout )
|
|
);
|
|
wire [24:0] bg_ioctl_addr = ioctl_addr - 16'hC000;
|
|
|
|
reg port1_req, port2_req;
|
|
sdram sdram(
|
|
.*,
|
|
.init_n ( pll_locked ),
|
|
.clk ( clock_48 ),
|
|
|
|
.port1_req ( port1_req ),
|
|
.port1_ack ( ),
|
|
.port1_a ( ioctl_addr[23:1] ),
|
|
.port1_ds ( {ioctl_addr[0], ~ioctl_addr[0]} ),
|
|
.port1_we ( ioctl_downl ),
|
|
.port1_d ( {ioctl_dout, ioctl_dout} ),
|
|
.port1_q ( ),
|
|
|
|
.cpu1_addr ( ioctl_downl ? 16'hffff : {2'b00, main_rom_addr[14:1]} ),
|
|
.cpu1_q ( main_rom_do ),
|
|
.cpu2_addr ( ioctl_downl ? 16'hffff : sub_rom_addr[12:1] + 16'h4000 ),
|
|
.cpu2_q ( sub_rom_do ),
|
|
|
|
// port2 for sprite graphics
|
|
.port2_req ( port2_req ),
|
|
.port2_ack ( ),
|
|
.port2_a ( {bg_ioctl_addr[23:14], bg_ioctl_addr[12:0]} ), // merge sprite roms to 16-bit wide words
|
|
.port2_ds ( {bg_ioctl_addr[13], ~bg_ioctl_addr[13]} ),
|
|
.port2_we ( ioctl_downl ),
|
|
.port2_d ( {ioctl_dout, ioctl_dout} ),
|
|
.port2_q ( ),
|
|
|
|
.bg_addr ( ioctl_downl ? 16'hffff : bg_addr ),
|
|
.bg_q ( bg_do )
|
|
);
|
|
|
|
// ROM download controller
|
|
always @(posedge clock_48) begin
|
|
reg ioctl_wr_last = 0;
|
|
|
|
ioctl_wr_last <= ioctl_wr;
|
|
if (ioctl_downl) begin
|
|
if (~ioctl_wr_last && ioctl_wr) begin
|
|
port1_req <= ~port1_req;
|
|
port2_req <= ~port2_req;
|
|
end
|
|
end
|
|
end
|
|
|
|
reg reset = 1;
|
|
reg rom_loaded = 0;
|
|
always @(posedge clock_48) begin
|
|
reg ioctl_downlD;
|
|
ioctl_downlD <= ioctl_downl;
|
|
if (ioctl_downlD & ~ioctl_downl) rom_loaded <= 1;
|
|
reset <= status[0] | buttons[1] | ~rom_loaded;
|
|
end
|
|
|
|
TimePilot84 TimePilot84(
|
|
.reset(~reset),
|
|
.clk_49m(clock_48),
|
|
.clk_14m(clock_14),
|
|
.coin({~m_coin2,~m_coin1}),
|
|
.start_buttons({~m_two_players,~m_one_player}),
|
|
.p1_joystick({~m_right, ~m_left, ~m_down, ~m_up}),
|
|
.p2_joystick({~m_right2, ~m_left2, ~m_down2, ~m_up2}),
|
|
.p1_buttons({1'b1, ~m_fireB, ~m_fireA}),
|
|
.p2_buttons({~m_fire2B, ~m_fire2A}),
|
|
.btn_service(~service),
|
|
.dip_sw(dip_sw),
|
|
.is_set3(core_mod[0]),
|
|
.video_hsync(hs),
|
|
.video_vsync(vs),
|
|
.video_csync(cs),
|
|
.video_hblank(hb),
|
|
.video_vblank(vb),
|
|
.video_r(r),
|
|
.video_g(g),
|
|
.video_b(b),
|
|
.sound(audio),
|
|
.ioctl_addr(ioctl_addr),
|
|
.ioctl_data(ioctl_dout),
|
|
.ioctl_wr(ioctl_wr),
|
|
.main_cpu_rom_addr(main_rom_addr),
|
|
.main_cpu_rom_do(main_rom_addr[0] ? main_rom_do[15:8] : main_rom_do[7:0]),
|
|
.sub_cpu_rom_addr(sub_rom_addr),
|
|
.sub_cpu_rom_do(sub_rom_addr[0] ? sub_rom_do[15:8] : sub_rom_do[7:0]),
|
|
.char_rom_addr(bg_addr),
|
|
.char_rom_do(bg_do)
|
|
);
|
|
|
|
mist_video #(.COLOR_DEPTH(4), .SD_HCNT_WIDTH(10)) mist_video(
|
|
.clk_sys ( clock_48 ),
|
|
.SPI_SCK ( SPI_SCK ),
|
|
.SPI_SS3 ( SPI_SS3 ),
|
|
.SPI_DI ( SPI_DI ),
|
|
.R ( blankn ? r : 0 ),
|
|
.G ( blankn ? g : 0 ),
|
|
.B ( blankn ? b : 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 ( 0 ),
|
|
.rotate ( { orientation[1], rotate } ),
|
|
.blend ( blend ),
|
|
.scandoubler_disable( scandoublerD ),
|
|
.scanlines ( scanlines ),
|
|
.ypbpr ( ypbpr ),
|
|
.no_csync ( no_csync )
|
|
);
|
|
|
|
user_io #(.STRLEN(($size(CONF_STR)>>3)))user_io(
|
|
.clk_sys (clock_48 ),
|
|
.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 ),
|
|
.core_mod (core_mod ),
|
|
.key_strobe (key_strobe ),
|
|
.key_pressed (key_pressed ),
|
|
.key_code (key_code ),
|
|
.joystick_0 (joystick_0 ),
|
|
.joystick_1 (joystick_1 ),
|
|
.status (status )
|
|
);
|
|
|
|
dac #(.C_bits(16))dac_l(
|
|
.clk_i(clock_14),
|
|
.res_n_i(1'b1),
|
|
.dac_i({~audio[15], audio[14:0]}),
|
|
.dac_o(AUDIO_L)
|
|
);
|
|
|
|
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;
|
|
|
|
arcade_inputs inputs (
|
|
.clk ( clock_48 ),
|
|
.key_strobe ( key_strobe ),
|
|
.key_pressed ( key_pressed ),
|
|
.key_code ( key_code ),
|
|
.joystick_0 ( joystick_0 ),
|
|
.joystick_1 ( joystick_1 ),
|
|
.rotate ( rotate ),
|
|
.orientation ( orientation ),
|
|
.joyswap ( joyswap ),
|
|
.oneplayer ( 1'b0 ),
|
|
.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
|