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//=======================================================================
// Project Monophony
//   Wire-Frame 3D Graphics Accelerator IP Core
//
// File:
//   fm_geo.v
//
// Abstract:
//   Geometry Engine top module
//
// Author:
//   Kenji Ishimaru (info.info.wf3d@gmail.com)
//
//======================================================================
//
// Copyright (c) 2015, Kenji Ishimaru
// All rights reserved.
//
// Redistribution and use in source and binary 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 binary 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.
//
// 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 COPYRIGHT HOLDER 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.
//
// Revision History
 
`include "fm_3d_define.v"
module fm_geo (
  // system
  input         clk_core,
  input         rst_x,
  output        o_debug,
  // Vertex Fetch Memory I/F (Read Only)
(* mark_debug = "true" *)  output        o_req_m,
(* mark_debug = "true" *)  output [31:0] o_adrs_m,
(* mark_debug = "true" *)  output [2:0]  o_len_m,
(* mark_debug = "true" *)  input         i_ack_m,
(* mark_debug = "true" *)  input         i_strr_m,
(* mark_debug = "true" *)  input  [31:0] i_dbr_m,
  // Register Configuration
  //   vertex fetch
  input         i_dma_start,
  input  [29:0] i_dma_top_address,
  input  [15:0] i_dma_size,
  output        o_state,
  //   matrix elements  
`ifdef D3D_USE_MATRIX_PALETTE
  input  [1:0] i_num_mats,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m00,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m01,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m02,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m03,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m10,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m11,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m12,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m13,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m20,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m21,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m22,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m23,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m30,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m31,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m32,
  input  [22*`D3D_NUM_OF_MATS-1:0] i_m33,
`else
  input  [21:0] i_m00,
  input  [21:0] i_m01,
  input  [21:0] i_m02,
  input  [21:0] i_m03,
  input  [21:0] i_m10,
  input  [21:0] i_m11,
  input  [21:0] i_m12,
  input  [21:0] i_m13,
  input  [21:0] i_m20,
  input  [21:0] i_m21,
  input  [21:0] i_m22,
  input  [21:0] i_m23,
  input  [21:0] i_m30,
  input  [21:0] i_m31,
  input  [21:0] i_m32,
  input  [21:0] i_m33,
`endif
  // viewport mapping
  input [21:0]  i_vw,
  input [21:0]  i_vh,
  // curring
  input         i_en_cull,
  input         i_ccw,
  // Rasterizer I/F
  output        o_en,
  input         i_ack,
  output [`D3D_FTOI_WIDTH-1:0] o_v0_x,
  output [`D3D_FTOI_WIDTH-1:0] o_v0_y,
  output [`D3D_FTOI_WIDTH-1:0] o_v1_x,
  output [`D3D_FTOI_WIDTH-1:0] o_v1_y,
  output [`D3D_FTOI_WIDTH-1:0] o_v2_x,
  output [`D3D_FTOI_WIDTH-1:0] o_v2_y
);
 
//////////////////////////////////
// wire
//////////////////////////////////
wire        w_en_dma;
wire        w_ack_dma;
wire [21:0] w_vx_dma;
wire [21:0] w_vy_dma;
wire [21:0] w_vz_dma;
wire [21:0] w_vw_dma;
 
wire        w_en_mvp;
wire        w_ack_mvp;
wire [21:0] w_vx_mvp;
wire [21:0] w_vy_mvp;
wire [21:0] w_vz_mvp;
wire [21:0] w_vw_mvp;
 
wire        w_en_pdiv;
wire        w_ack_pdiv;
wire [21:0] w_vx_pdiv;
wire [21:0] w_vy_pdiv;
wire [5:0]  w_outcode_pdiv;
 
wire w_en_view;
wire w_ack_view;
wire [21:0] w_vx_view;
wire [21:0] w_vy_view;
wire [5:0]  w_outcode_view;
 
`ifdef D3D_USE_CLIP
(* mark_debug = "true" *) wire w_en_clip;
(* mark_debug = "true" *) wire w_ack_clip;
(* mark_debug = "true" *) wire [21:0] w_vx_clip;
(* mark_debug = "true" *) wire [21:0] w_vy_clip;
(* mark_debug = "true" *) wire [21:0] w_vw_clip;
(* mark_debug = "true" *) wire [5:0]  w_outcode_clip;
(* mark_debug = "true" *) wire w_state_clip;
`endif
 
`ifdef D3D_USE_CULL
wire w_en_tri;
wire w_ack_tri;
wire [`D3D_FTOI_WIDTH-1:0] w_v0_x_tri;
wire [`D3D_FTOI_WIDTH-1:0] w_v0_y_tri;
wire [`D3D_FTOI_WIDTH-1:0] w_v1_x_tri;
wire [`D3D_FTOI_WIDTH-1:0] w_v1_y_tri;
wire [`D3D_FTOI_WIDTH-1:0] w_v2_x_tri;
wire [`D3D_FTOI_WIDTH-1:0] w_v2_y_tri;
wire w_state_cull;
`endif
 
wire        w_state_mat;
wire        w_state_pd;
wire        w_state_view;
wire        w_state_if;
wire        w_dma_end;
 
reg [7:0] r_cnt;
assign o_debug = (r_cnt == 'd0);
assign o_state = w_state_mat &
                 w_state_pd &
                 w_state_view &
                 w_state_if &
`ifdef D3D_USE_CLIP
                 w_state_clip &
`endif
`ifdef D3D_USE_CULL
                 w_state_cull &
`endif
                 w_dma_end;
 
//////////////////////////////////
// module instance
//////////////////////////////////
`ifdef D3D_WISHBONE
fm_geo_mem #(.P_BURST_MODE(0)) u_geo_mem (
`else
fm_geo_mem #(.P_BURST_MODE(1)) u_geo_mem (
`endif
  // system
  .clk_core(clk_core),
  .rst_x(rst_x),
  // Vertex Fetch Memory I/F (Read Only)
  .o_req_m(o_req_m),
  .o_adrs_m(o_adrs_m),
  .o_len_m(o_len_m),
  .i_ack_m(i_ack_m),
  .i_strr_m(i_strr_m),
  .i_dbr_m(i_dbr_m),
  // Register Configuration
  //   vertex fetch
  .i_dma_start(i_dma_start),
  .i_dma_top_address(i_dma_top_address),
  .i_dma_size(i_dma_size),
  .o_dma_end(w_dma_end),
  // vertex output
  .o_en(w_en_dma),
  .i_ack(w_ack_dma),
  .o_vx(w_vx_dma),
  .o_vy(w_vy_dma),
  .o_vz(w_vz_dma),
  .o_vw(w_vw_dma)
);
 
// model-view-projedction matrix
fm_geo_matrix u_geo_matrix (
  .clk_core(clk_core),
  .rst_x(rst_x),
  .o_state(w_state_mat),
  // vertex input
  .i_en(w_en_dma),
  .o_ack(w_ack_dma),
  .i_vx(w_vx_dma),
  .i_vy(w_vy_dma),
  .i_vz(w_vz_dma),
  .i_vw(w_vw_dma),
  // matrix elements
`ifdef D3D_USE_MATRIX_PALETTE
  .i_num_mats(i_num_mats),
`endif
  .i_m00(i_m00),
  .i_m01(i_m01),
  .i_m02(i_m02),
  .i_m03(i_m03),
  .i_m10(i_m10),
  .i_m11(i_m11),
  .i_m12(i_m12),
  .i_m13(i_m13),
  .i_m20(i_m20),
  .i_m21(i_m21),
  .i_m22(i_m22),
  .i_m23(i_m23),
  .i_m30(i_m30),
  .i_m31(i_m31),
  .i_m32(i_m32),
  .i_m33(i_m33),
  // vertex output
  .o_en(w_en_mvp),
  .i_ack(w_ack_mvp),
  .o_vx(w_vx_mvp),
  .o_vy(w_vy_mvp),
  .o_vz(w_vz_mvp),
  .o_vw(w_vw_mvp)
);
 
`ifdef D3D_USE_CLIP
fm_geo_clip u_geo_clip (
  .clk_core(clk_core),
  .rst_x(rst_x),
  .o_state(w_state_clip),
  // vertex input
  .i_en(w_en_mvp),
  .o_ack(w_ack_mvp),
  .i_vx(w_vx_mvp),
  .i_vy(w_vy_mvp),
  .i_vz(w_vz_mvp),
  .i_vw(w_vw_mvp),
  // vertex output
  .o_en(w_en_clip),
  .i_ack(w_ack_clip),
  .o_outcode(w_outcode_clip),
  .o_vx(w_vx_clip),
  .o_vy(w_vy_clip),
  .o_vw(w_vw_clip)
);
`endif
 
// perspective division
fm_geo_persdiv u_geo_persdiv (
  .clk_core(clk_core),
  .rst_x(rst_x),
  .o_state(w_state_pd),
  // vertex input
`ifdef D3D_USE_CLIP
  .i_en(w_en_clip),
  .o_ack(w_ack_clip),
  .i_outcode(w_outcode_clip),
  .i_vx(w_vx_clip),
  .i_vy(w_vy_clip),
  .i_vw(w_vw_clip),
`else
  .i_en(w_en_mvp),
  .o_ack(w_ack_mvp),
  .i_outcode(1'b0),
  .i_vx(w_vx_mvp),
  .i_vy(w_vy_mvp),
  .i_vw(w_vw_mvp),
`endif
  // vertex output 
  .o_en(w_en_pdiv),
  .i_ack(w_ack_pdiv),
  .o_outcode(w_outcode_pdiv),
  .o_vx(w_vx_pdiv),
  .o_vy(w_vy_pdiv)
);
 
fm_geo_viewport u_geo_viewport (
  .clk_core(clk_core),
  .rst_x(rst_x),
  .o_state(w_state_view),
  // register configuration
  .i_vw(i_vw),
  .i_vh(i_vh),
  // vertex input
  .i_en(w_en_pdiv),
  .o_ack(w_ack_pdiv),
  .i_outcode(w_outcode_pdiv),
  .i_vx(w_vx_pdiv),
  .i_vy(w_vy_pdiv),
  // vertex output
  .o_en(w_en_view),
  .i_ack(w_ack_view),
  .o_outcode(w_outcode_view),
  .o_vx(w_vx_view),
  .o_vy(w_vy_view)
);
 
fm_geo_tri u_geo_tri (
  .clk_core(clk_core),
  .rst_x(rst_x),
  .o_state(w_state_if),
  // vertex input
  .i_en(w_en_view),
  .o_ack(w_ack_view),
  .i_outcode(w_outcode_view),
  .i_vx(w_vx_view),
  .i_vy(w_vy_view),
`ifdef D3D_USE_CULL
  // vertex output
  .o_en(w_en_tri),
  .i_ack(w_ack_tri),
  .o_v0_x(w_v0_x_tri),
  .o_v0_y(w_v0_y_tri),
  .o_v1_x(w_v1_x_tri),
  .o_v1_y(w_v1_y_tri),
  .o_v2_x(w_v2_x_tri),
  .o_v2_y(w_v2_y_tri)
`else
  // vertex output
  .o_en(o_en),
  .i_ack(i_ack),
  .o_v0_x(o_v0_x),
  .o_v0_y(o_v0_y),
  .o_v1_x(o_v1_x),
  .o_v1_y(o_v1_y),
  .o_v2_x(o_v2_x),
  .o_v2_y(o_v2_y)
`endif
);
 
`ifdef D3D_USE_CULL
fm_geo_cull u_geo_cull (
  // system
  .clk_core(clk_core),
  .rst_x(rst_x),
  // curring
  .i_en_cull(i_en_cull),
  .i_ccw(i_ccw),
  .o_state(w_state_cull),
  // triangle input 
  .i_en(w_en_tri),
  .o_ack(w_ack_tri),
  .i_v0_x(w_v0_x_tri),
  .i_v0_y(w_v0_y_tri),
  .i_v1_x(w_v1_x_tri),
  .i_v1_y(w_v1_y_tri),
  .i_v2_x(w_v2_x_tri),
  .i_v2_y(w_v2_y_tri),
  // triangle output
  .o_en(o_en),
  .i_ack(i_ack),
  .o_v0_x(o_v0_x),
  .o_v0_y(o_v0_y),
  .o_v1_x(o_v1_x),
  .o_v1_y(o_v1_y),
  .o_v2_x(o_v2_x),
  .o_v2_y(o_v2_y)
);
`endif
 
`ifdef D3D_SYNC_RESET
always @(posedge clk_core) begin
`else
always @(posedge clk_core or negedge rst_x) begin
`endif
  if (rst_x == `D3D_RESET_POL) begin
   r_cnt <= 'd0;
  end else begin
  if (w_en_clip & w_ack_clip) begin
     if (r_cnt == 'd35) r_cnt <= 'd0;
      else r_cnt <= r_cnt + 1'b1;
  end
  end
 
end
 
 
endmodule

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Subversion Repositories wf3d

[/] [wf3d/] [trunk/] [rtl/] [core/] [fm_geo.v] - Blame information for rev 9

Line No.	Rev	Author	Line
1	2	specular	`//=======================================================================`
2			`// Project Monophony`
3			`// Wire-Frame 3D Graphics Accelerator IP Core`
4			`//`
5			`// File:`
6			`// fm_geo.v`
7			`//`
8			`// Abstract:`
9			`// Geometry Engine top module`
10			`//`
11			`// Author:`
12	9	specular	`// Kenji Ishimaru (info.info.wf3d@gmail.com)`
13	2	specular	`//`
14			`//======================================================================`
15			`//`
16			`// Copyright (c) 2015, Kenji Ishimaru`
17			`// All rights reserved.`
18			`//`
19			`// Redistribution and use in source and binary forms, with or without`
20			`// modification, are permitted provided that the following conditions are met:`
21			`//`
22			`// -Redistributions of source code must retain the above copyright notice,`
23			`// this list of conditions and the following disclaimer.`
24			`// -Redistributions in binary form must reproduce the above copyright notice,`
25			`// this list of conditions and the following disclaimer in the documentation`
26			`// and/or other materials provided with the distribution.`
27			`//`
28			`// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"`
29			`// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,`
30			`// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR`
31			`// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR`
32			`// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,`
33			`// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,`
34			`// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;`
35			`// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,`
36			`// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR`
37			`// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,`
38			`// EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.`
39			`//`
40			`// Revision History`
41
42			`include "fm_3d_define.v"
43			`module fm_geo (`
44			`// system`
45			`input clk_core,`
46			`input rst_x,`
47			`output o_debug,`
48			`// Vertex Fetch Memory I/F (Read Only)`
49	4	specular	`(* mark_debug = "true" *) output o_req_m,`
50			`(* mark_debug = "true" *) output [31:0] o_adrs_m,`
51			`(* mark_debug = "true" *) output [2:0] o_len_m,`
52			`(* mark_debug = "true" *) input i_ack_m,`
53			`(* mark_debug = "true" *) input i_strr_m,`
54			`(* mark_debug = "true" *) input [31:0] i_dbr_m,`
55	2	specular	`// Register Configuration`
56			`// vertex fetch`
57			`input i_dma_start,`
58			`input [29:0] i_dma_top_address,`
59			`input [15:0] i_dma_size,`
60			`output o_state,`
61			`// matrix elements`
62			`ifdef D3D_USE_MATRIX_PALETTE
63			`input [1:0] i_num_mats,`
64			input [22*`D3D_NUM_OF_MATS-1:0] i_m00,
65			input [22*`D3D_NUM_OF_MATS-1:0] i_m01,
66			input [22*`D3D_NUM_OF_MATS-1:0] i_m02,
67			input [22*`D3D_NUM_OF_MATS-1:0] i_m03,
68			input [22*`D3D_NUM_OF_MATS-1:0] i_m10,
69			input [22*`D3D_NUM_OF_MATS-1:0] i_m11,
70			input [22*`D3D_NUM_OF_MATS-1:0] i_m12,
71			input [22*`D3D_NUM_OF_MATS-1:0] i_m13,
72			input [22*`D3D_NUM_OF_MATS-1:0] i_m20,
73			input [22*`D3D_NUM_OF_MATS-1:0] i_m21,
74			input [22*`D3D_NUM_OF_MATS-1:0] i_m22,
75			input [22*`D3D_NUM_OF_MATS-1:0] i_m23,
76			input [22*`D3D_NUM_OF_MATS-1:0] i_m30,
77			input [22*`D3D_NUM_OF_MATS-1:0] i_m31,
78			input [22*`D3D_NUM_OF_MATS-1:0] i_m32,
79			input [22*`D3D_NUM_OF_MATS-1:0] i_m33,
80			`else
81			`input [21:0] i_m00,`
82			`input [21:0] i_m01,`
83			`input [21:0] i_m02,`
84			`input [21:0] i_m03,`
85			`input [21:0] i_m10,`
86			`input [21:0] i_m11,`
87			`input [21:0] i_m12,`
88			`input [21:0] i_m13,`
89			`input [21:0] i_m20,`
90			`input [21:0] i_m21,`
91			`input [21:0] i_m22,`
92			`input [21:0] i_m23,`
93			`input [21:0] i_m30,`
94			`input [21:0] i_m31,`
95			`input [21:0] i_m32,`
96			`input [21:0] i_m33,`
97			`endif
98			`// viewport mapping`
99			`input [21:0] i_vw,`
100			`input [21:0] i_vh,`
101			`// curring`
102			`input i_en_cull,`
103			`input i_ccw,`
104			`// Rasterizer I/F`
105			`output o_en,`
106			`input i_ack,`
107			output [`D3D_FTOI_WIDTH-1:0] o_v0_x,
108			output [`D3D_FTOI_WIDTH-1:0] o_v0_y,
109			output [`D3D_FTOI_WIDTH-1:0] o_v1_x,
110			output [`D3D_FTOI_WIDTH-1:0] o_v1_y,
111			output [`D3D_FTOI_WIDTH-1:0] o_v2_x,
112			output [`D3D_FTOI_WIDTH-1:0] o_v2_y
113			`);`
114
115			`//////////////////////////////////`
116			`// wire`
117			`//////////////////////////////////`
118			`wire w_en_dma;`
119			`wire w_ack_dma;`
120			`wire [21:0] w_vx_dma;`
121			`wire [21:0] w_vy_dma;`
122			`wire [21:0] w_vz_dma;`
123			`wire [21:0] w_vw_dma;`
124
125			`wire w_en_mvp;`
126			`wire w_ack_mvp;`
127			`wire [21:0] w_vx_mvp;`
128			`wire [21:0] w_vy_mvp;`
129			`wire [21:0] w_vz_mvp;`
130			`wire [21:0] w_vw_mvp;`
131
132			`wire w_en_pdiv;`
133			`wire w_ack_pdiv;`
134			`wire [21:0] w_vx_pdiv;`
135			`wire [21:0] w_vy_pdiv;`
136			`wire [5:0] w_outcode_pdiv;`
137
138			`wire w_en_view;`
139			`wire w_ack_view;`
140			`wire [21:0] w_vx_view;`
141			`wire [21:0] w_vy_view;`
142			`wire [5:0] w_outcode_view;`
143
144			`ifdef D3D_USE_CLIP
145	4	specular	`(* mark_debug = "true" *) wire w_en_clip;`
146			`(* mark_debug = "true" *) wire w_ack_clip;`
147			`(* mark_debug = "true" *) wire [21:0] w_vx_clip;`
148			`(* mark_debug = "true" *) wire [21:0] w_vy_clip;`
149			`(* mark_debug = "true" *) wire [21:0] w_vw_clip;`
150			`(* mark_debug = "true" *) wire [5:0] w_outcode_clip;`
151			`(* mark_debug = "true" *) wire w_state_clip;`
152	2	specular	`endif
153
154			`ifdef D3D_USE_CULL
155			`wire w_en_tri;`
156			`wire w_ack_tri;`
157			wire [`D3D_FTOI_WIDTH-1:0] w_v0_x_tri;
158			wire [`D3D_FTOI_WIDTH-1:0] w_v0_y_tri;
159			wire [`D3D_FTOI_WIDTH-1:0] w_v1_x_tri;
160			wire [`D3D_FTOI_WIDTH-1:0] w_v1_y_tri;
161			wire [`D3D_FTOI_WIDTH-1:0] w_v2_x_tri;
162			wire [`D3D_FTOI_WIDTH-1:0] w_v2_y_tri;
163			`wire w_state_cull;`
164			`endif
165
166			`wire w_state_mat;`
167			`wire w_state_pd;`
168			`wire w_state_view;`
169			`wire w_state_if;`
170			`wire w_dma_end;`
171
172			`reg [7:0] r_cnt;`
173			`assign o_debug = (r_cnt == 'd0);`
174			`assign o_state = w_state_mat &`
175			`w_state_pd &`
176			`w_state_view &`
177			`w_state_if &`
178			`ifdef D3D_USE_CLIP
179			`w_state_clip &`
180			`endif
181			`ifdef D3D_USE_CULL
182			`w_state_cull &`
183			`endif
184			`w_dma_end;`
185
186			`//////////////////////////////////`
187			`// module instance`
188			`//////////////////////////////////`
189			`ifdef D3D_WISHBONE
190			`fm_geo_mem #(.P_BURST_MODE(0)) u_geo_mem (`
191			`else
192			`fm_geo_mem #(.P_BURST_MODE(1)) u_geo_mem (`
193			`endif
194			`// system`
195			`.clk_core(clk_core),`
196			`.rst_x(rst_x),`
197			`// Vertex Fetch Memory I/F (Read Only)`
198			`.o_req_m(o_req_m),`
199			`.o_adrs_m(o_adrs_m),`
200			`.o_len_m(o_len_m),`
201			`.i_ack_m(i_ack_m),`
202			`.i_strr_m(i_strr_m),`
203			`.i_dbr_m(i_dbr_m),`
204			`// Register Configuration`
205			`// vertex fetch`
206			`.i_dma_start(i_dma_start),`
207			`.i_dma_top_address(i_dma_top_address),`
208			`.i_dma_size(i_dma_size),`
209			`.o_dma_end(w_dma_end),`
210			`// vertex output`
211			`.o_en(w_en_dma),`
212			`.i_ack(w_ack_dma),`
213			`.o_vx(w_vx_dma),`
214			`.o_vy(w_vy_dma),`
215			`.o_vz(w_vz_dma),`
216			`.o_vw(w_vw_dma)`
217			`);`
218
219			`// model-view-projedction matrix`
220			`fm_geo_matrix u_geo_matrix (`
221			`.clk_core(clk_core),`
222			`.rst_x(rst_x),`
223			`.o_state(w_state_mat),`
224			`// vertex input`
225			`.i_en(w_en_dma),`
226			`.o_ack(w_ack_dma),`
227			`.i_vx(w_vx_dma),`
228			`.i_vy(w_vy_dma),`
229			`.i_vz(w_vz_dma),`
230			`.i_vw(w_vw_dma),`
231			`// matrix elements`
232			`ifdef D3D_USE_MATRIX_PALETTE
233			`.i_num_mats(i_num_mats),`
234			`endif
235			`.i_m00(i_m00),`
236			`.i_m01(i_m01),`
237			`.i_m02(i_m02),`
238			`.i_m03(i_m03),`
239			`.i_m10(i_m10),`
240			`.i_m11(i_m11),`
241			`.i_m12(i_m12),`
242			`.i_m13(i_m13),`
243			`.i_m20(i_m20),`
244			`.i_m21(i_m21),`
245			`.i_m22(i_m22),`
246			`.i_m23(i_m23),`
247			`.i_m30(i_m30),`
248			`.i_m31(i_m31),`
249			`.i_m32(i_m32),`
250			`.i_m33(i_m33),`
251			`// vertex output`
252			`.o_en(w_en_mvp),`
253			`.i_ack(w_ack_mvp),`
254			`.o_vx(w_vx_mvp),`
255			`.o_vy(w_vy_mvp),`
256			`.o_vz(w_vz_mvp),`
257			`.o_vw(w_vw_mvp)`
258			`);`
259
260			`ifdef D3D_USE_CLIP
261			`fm_geo_clip u_geo_clip (`
262			`.clk_core(clk_core),`
263			`.rst_x(rst_x),`
264			`.o_state(w_state_clip),`
265			`// vertex input`
266			`.i_en(w_en_mvp),`
267			`.o_ack(w_ack_mvp),`
268			`.i_vx(w_vx_mvp),`
269			`.i_vy(w_vy_mvp),`
270			`.i_vz(w_vz_mvp),`
271			`.i_vw(w_vw_mvp),`
272			`// vertex output`
273			`.o_en(w_en_clip),`
274			`.i_ack(w_ack_clip),`
275			`.o_outcode(w_outcode_clip),`
276			`.o_vx(w_vx_clip),`
277			`.o_vy(w_vy_clip),`
278			`.o_vw(w_vw_clip)`
279			`);`
280			`endif
281
282			`// perspective division`
283			`fm_geo_persdiv u_geo_persdiv (`
284			`.clk_core(clk_core),`
285			`.rst_x(rst_x),`
286			`.o_state(w_state_pd),`
287			`// vertex input`
288			`ifdef D3D_USE_CLIP
289			`.i_en(w_en_clip),`
290			`.o_ack(w_ack_clip),`
291			`.i_outcode(w_outcode_clip),`
292			`.i_vx(w_vx_clip),`
293			`.i_vy(w_vy_clip),`
294			`.i_vw(w_vw_clip),`
295			`else
296			`.i_en(w_en_mvp),`
297			`.o_ack(w_ack_mvp),`
298			`.i_outcode(1'b0),`
299			`.i_vx(w_vx_mvp),`
300			`.i_vy(w_vy_mvp),`
301			`.i_vw(w_vw_mvp),`
302			`endif
303			`// vertex output`
304			`.o_en(w_en_pdiv),`
305			`.i_ack(w_ack_pdiv),`
306			`.o_outcode(w_outcode_pdiv),`
307			`.o_vx(w_vx_pdiv),`
308			`.o_vy(w_vy_pdiv)`
309			`);`
310
311			`fm_geo_viewport u_geo_viewport (`
312			`.clk_core(clk_core),`
313			`.rst_x(rst_x),`
314			`.o_state(w_state_view),`
315			`// register configuration`
316			`.i_vw(i_vw),`
317			`.i_vh(i_vh),`
318			`// vertex input`
319			`.i_en(w_en_pdiv),`
320			`.o_ack(w_ack_pdiv),`
321			`.i_outcode(w_outcode_pdiv),`
322			`.i_vx(w_vx_pdiv),`
323			`.i_vy(w_vy_pdiv),`
324			`// vertex output`
325			`.o_en(w_en_view),`
326			`.i_ack(w_ack_view),`
327			`.o_outcode(w_outcode_view),`
328			`.o_vx(w_vx_view),`
329			`.o_vy(w_vy_view)`
330			`);`
331
332			`fm_geo_tri u_geo_tri (`
333			`.clk_core(clk_core),`
334			`.rst_x(rst_x),`
335			`.o_state(w_state_if),`
336			`// vertex input`
337			`.i_en(w_en_view),`
338			`.o_ack(w_ack_view),`
339			`.i_outcode(w_outcode_view),`
340			`.i_vx(w_vx_view),`
341			`.i_vy(w_vy_view),`
342			`ifdef D3D_USE_CULL
343			`// vertex output`
344			`.o_en(w_en_tri),`
345			`.i_ack(w_ack_tri),`
346			`.o_v0_x(w_v0_x_tri),`
347			`.o_v0_y(w_v0_y_tri),`
348			`.o_v1_x(w_v1_x_tri),`
349			`.o_v1_y(w_v1_y_tri),`
350			`.o_v2_x(w_v2_x_tri),`
351			`.o_v2_y(w_v2_y_tri)`
352			`else
353			`// vertex output`
354			`.o_en(o_en),`
355			`.i_ack(i_ack),`
356			`.o_v0_x(o_v0_x),`
357			`.o_v0_y(o_v0_y),`
358			`.o_v1_x(o_v1_x),`
359			`.o_v1_y(o_v1_y),`
360			`.o_v2_x(o_v2_x),`
361			`.o_v2_y(o_v2_y)`
362			`endif
363			`);`
364
365			`ifdef D3D_USE_CULL
366			`fm_geo_cull u_geo_cull (`
367			`// system`
368			`.clk_core(clk_core),`
369			`.rst_x(rst_x),`
370			`// curring`
371			`.i_en_cull(i_en_cull),`
372			`.i_ccw(i_ccw),`
373			`.o_state(w_state_cull),`
374			`// triangle input`
375			`.i_en(w_en_tri),`
376			`.o_ack(w_ack_tri),`
377			`.i_v0_x(w_v0_x_tri),`
378			`.i_v0_y(w_v0_y_tri),`
379			`.i_v1_x(w_v1_x_tri),`
380			`.i_v1_y(w_v1_y_tri),`
381			`.i_v2_x(w_v2_x_tri),`
382			`.i_v2_y(w_v2_y_tri),`
383			`// triangle output`
384			`.o_en(o_en),`
385			`.i_ack(i_ack),`
386			`.o_v0_x(o_v0_x),`
387			`.o_v0_y(o_v0_y),`
388			`.o_v1_x(o_v1_x),`
389			`.o_v1_y(o_v1_y),`
390			`.o_v2_x(o_v2_x),`
391			`.o_v2_y(o_v2_y)`
392			`);`
393			`endif
394
395			`ifdef D3D_SYNC_RESET
396			`always @(posedge clk_core) begin`
397			`else
398			`always @(posedge clk_core or negedge rst_x) begin`
399			`endif
400			if (rst_x == `D3D_RESET_POL) begin
401			`r_cnt <= 'd0;`
402			`end else begin`
403			`if (w_en_clip & w_ack_clip) begin`
404			`if (r_cnt == 'd35) r_cnt <= 'd0;`
405			`else r_cnt <= r_cnt + 1'b1;`
406			`end`
407			`end`
408
409			`end`
410
411
412			`endmodule`