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//
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//
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// Abstract:
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// Abstract:
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// Geometry Engine memory controller.
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// Geometry Engine memory controller.
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//
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//
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// Author:
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// Author:
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// Kenji Ishimaru (kenji.ishimaru@prtissimo.com)
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// Kenji Ishimaru (info.wf3d@gmail.com)
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//
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//
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//======================================================================
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//======================================================================
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//
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//
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// Copyright (c) 2015, Kenji Ishimaru
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// Copyright (c) 2015, Kenji Ishimaru
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// All rights reserved.
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// All rights reserved.
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// system
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// system
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input clk_core,
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input clk_core,
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input rst_x,
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input rst_x,
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output o_state,
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output o_state,
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// Vertex Fetch Memory I/F (Read Only)
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// Vertex Fetch Memory I/F (Read Only)
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output o_req_m,
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(* mark_debug = "true" *) output o_req_m,
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output [31:0] o_adrs_m,
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(* mark_debug = "true" *) output [31:0] o_adrs_m,
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output [2:0] o_len_m,
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(* mark_debug = "true" *) output [2:0] o_len_m,
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input i_ack_m,
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(* mark_debug = "true" *) input i_ack_m,
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input i_strr_m,
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(* mark_debug = "true" *) input i_strr_m,
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input [31:0] i_dbr_m,
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(* mark_debug = "true" *) input [31:0] i_dbr_m,
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// Register Configuration
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// Register Configuration
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// vertex fetch
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// vertex fetch
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input i_dma_start,
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(* mark_debug = "true" *) input i_dma_start,
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input [29:0] i_dma_top_address,
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(* mark_debug = "true" *) input [29:0] i_dma_top_address,
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input [15:0] i_dma_size,
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(* mark_debug = "true" *) input [15:0] i_dma_size,
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output o_dma_end,
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(* mark_debug = "true" *) output o_dma_end,
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// vertex output
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// vertex output
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output o_en,
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(* mark_debug = "true" *) output o_en,
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input i_ack,
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(* mark_debug = "true" *) input i_ack,
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output [21:0] o_vx,
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(* mark_debug = "true" *) output [21:0] o_vx,
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output [21:0] o_vy,
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(* mark_debug = "true" *) output [21:0] o_vy,
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output [21:0] o_vz,
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(* mark_debug = "true" *) output [21:0] o_vz,
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output [21:0] o_vw
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(* mark_debug = "true" *) output [21:0] o_vw
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);
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);
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parameter P_BURST_MODE = 0;
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parameter P_BURST_MODE = 0;
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localparam P_IDLE = 'd0;
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localparam P_IDLE = 'd0;
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localparam P_REQ = 'd1;
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localparam P_REQ = 'd1;
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localparam P_RD_X = 'd2;
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localparam P_RD_X = 'd2;
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localparam P_DONE = 'd7;
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localparam P_DONE = 'd7;
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//////////////////////////////////
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//////////////////////////////////
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// reg
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// reg
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//////////////////////////////////
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//////////////////////////////////
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reg [2:0] r_state;
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(* mark_debug = "true" *) reg [2:0] r_state;
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reg [21:0] r_vx;
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reg [21:0] r_vx;
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reg [21:0] r_vy;
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reg [21:0] r_vy;
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reg [21:0] r_vz;
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reg [21:0] r_vz;
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reg [15:0] r_size;
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reg [15:0] r_size;
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reg [29:0] r_cur_adrs;
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reg [29:0] r_cur_adrs;
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