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`include "../../../rtl/verilog/gfx/gfx_wbs.v"
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`include "../../../rtl/verilog/gfx/gfx_wbm_write.v"
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`include "../../../rtl/verilog/gfx/gfx_wbm_read.v"
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`include "../../../rtl/verilog/gfx/gfx_rasterizer.v"
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`include "../../../rtl/verilog/gfx/gfx_clip.v"
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`include "../../../rtl/verilog/gfx/gfx_fragment_processor.v"
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`include "../../../rtl/verilog/gfx/gfx_blender.v"
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`include "../../../rtl/verilog/gfx/gfx_renderer.v"
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`include "../../../rtl/verilog/gfx/gfx_top.v"
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`include "../../../rtl/verilog/gfx/basic_fifo.v"
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`include "../../../rtl/verilog/gfx/gfx_color.v"
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`include "../../../rtl/verilog/gfx/gfx_wbm_read_arbiter.v"
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`include "../../../rtl/verilog/gfx/gfx_line.v"
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`include "../../../rtl/verilog/gfx/gfx_triangle.v"
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`include "../../../rtl/verilog/gfx/div_uu.v"
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`include "../../../rtl/verilog/gfx/gfx_transform.v"
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`include "../../../rtl/verilog/gfx/gfx_interp.v"
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`include "../../../rtl/verilog/gfx/gfx_cuvz.v"
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module gfx_bench();
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parameter point_width = 16;
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parameter subpixel_width = 16;
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parameter fifo_depth = 10;
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`include "../../../rtl/verilog/gfx/gfx_params.v"
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// GENERATE PARAMETERS FROM gfx_params.v
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parameter GFX_CTRL_CD8 = 0; // Color Depth 8
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parameter GFX_CTRL_CD16 = 1 << GFX_CTRL_COLOR_DEPTH; // Color Depth 16
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parameter GFX_CTRL_CD24 = 2 << GFX_CTRL_COLOR_DEPTH; // Color Depth 24 Not supported!
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parameter GFX_CTRL_CD32 = 3 << GFX_CTRL_COLOR_DEPTH; // Color Depth 32
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parameter GFX_CTRL_CDMASK = 3 << GFX_CTRL_COLOR_DEPTH; // All color depth bits
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parameter GFX_TEXTURE_ENABLE = 1 << GFX_CTRL_TEXTURE; // Enable Texture Reads
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parameter GFX_BLEND_ENABLE = 1 << GFX_CTRL_BLENDING; // Enable Alpha Blending
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parameter GFX_COLORKEY_ENABLE = 1 << GFX_CTRL_COLORKEY; // Enable Colorkeying
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parameter GFX_CLIPPING_ENABLE = 1 << GFX_CTRL_CLIPPING; // Enable Clipping/Scissoring
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parameter GFX_ZBUFFER_ENABLE = 1 << GFX_CTRL_ZBUFFER; // Enable depth buffer
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parameter GFX_DRAW_RECT = 1 << GFX_CTRL_RECT; // Put rect
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parameter GFX_DRAW_LINE = 1 << GFX_CTRL_LINE; // Put line
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parameter GFX_DRAW_TRI = 1 << GFX_CTRL_TRI; // Put triangle
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parameter GFX_DRAW_CURVE = 1 << GFX_CTRL_CURVE; // Put curve
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parameter GFX_INTERP = 1 << GFX_CTRL_INTERP; // Interpolation active (triangles)
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parameter GFX_INSIDE = 1 << GFX_CTRL_INSIDE; // Inside
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parameter GFX_ACTIVE_POINT0 = 0;
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parameter GFX_ACTIVE_POINT1 = 1 << GFX_CTRL_ACTIVE_POINT;
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parameter GFX_ACTIVE_POINT2 = 2 << GFX_CTRL_ACTIVE_POINT;
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parameter GFX_ACTIVE_POINTMASK = 3 << GFX_CTRL_ACTIVE_POINT;
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parameter GFX_FORWARD_POINT = 1 << GFX_CTRL_FORWARD_POINT;
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parameter GFX_TRANSFORM_POINT = 1 << GFX_CTRL_TRANSFORM_POINT;
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// Common wishbone signals
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reg wb_clk_i; // master clock reg
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reg wb_rst_i; // Asynchronous active high reset
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wire wb_inta_o; // interrupt
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// Wishbone master signals (write)
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wire wbm_write_cyc_o; // cycle wire
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wire wbm_write_stb_o; // strobe wire
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wire [ 2:0] wbm_write_cti_o; // cycle type id
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wire [ 1:0] wbm_write_bte_o; // burst type extension
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wire wbm_write_we_o; // write enable wire
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wire [31:0] wbm_write_adr_o; // address wire
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wire [ 3:0] wbm_write_sel_o; // byte select wires (only 32bits accesses are supported)
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reg wbm_write_ack_i; // wishbone cycle acknowledge
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reg wbm_write_err_i; // wishbone cycle error
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wire [31:0] wbm_write_dat_o; // wishbone data out
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// Wishbone master signals (read)
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wire wbm_read_cyc_o; // cycle wire
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wire wbm_read_stb_o; // strobe wire
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wire [ 2:0] wbm_read_cti_o; // cycle type id
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wire [ 1:0] wbm_read_bte_o; // burst type extension
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wire wbm_read_we_o; // write enable wire
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wire [31:0] wbm_read_adr_o; // address wire
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wire [ 3:0] wbm_read_sel_o; // byte select wires (only 32bits accesses are supported)
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reg wbm_read_ack_i; // wishbone cycle acknowledge
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reg wbm_read_err_i; // wishbone cycle error
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reg [31:0] wbm_read_dat_i; // wishbone data in
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// Wishbone slave signals
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reg wbs_cyc_i; // cycle reg
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reg wbs_stb_i; // strobe reg
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reg [ 2:0] wbs_cti_i; // cycle type id
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reg [ 1:0] wbs_bte_i; // burst type extension
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reg wbs_we_i; // write enable reg
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reg [31:0] wbs_adr_i; // address reg
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reg [ 3:0] wbs_sel_i; // byte select reg (only 32bits accesses are supported)
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wire wbs_ack_o; // wishbone cycle acknowledge
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wire wbs_err_o; // wishbone cycle error
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reg [31:0] wbs_dat_i; // wishbone data in
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wire [31:0] wbs_dat_o; // wishbone data out
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parameter GFX_VMEM = 32'h00800000;
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initial begin
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$dumpfile("gfx.vcd");
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$dumpvars(0,gfx_bench);
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// init values
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wb_clk_i = 0;
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wb_rst_i = 1;
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wbm_write_ack_i = 0;
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wbm_read_ack_i = 0;
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wbm_write_err_i = 0;
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wbm_read_err_i = 0;
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wbs_cyc_i = 0;
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wbs_cti_i = 0;
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wbs_bte_i = 0;
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wbs_adr_i = 0;
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wbs_sel_i = 4'b1111;
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wbs_dat_i = 0;
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// Can be high all the time
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wbs_we_i = 1;
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wbs_stb_i = 1;
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// wbm_read_dat_i = 32'hf18ff18f;
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// Set the texture read pixel
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wbm_read_dat_i = 32'h00000000;
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// Finish the reset of the component
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#2 wb_rst_i = 0;
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// Initialize color register
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#2 wbs_cyc_i = 1;
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wbs_adr_i = GFX_COLOR0;
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wbs_dat_i = 32'h12345671;
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#4 wbs_cyc_i = 0;
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// Initialize traget base
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#2 wbs_cyc_i = 1;
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wbs_dat_i = GFX_VMEM;
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wbs_adr_i = GFX_TARGET_BASE;
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#4 wbs_cyc_i = 0;
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// oc_gfx_set_videomode(640, 480, 16);
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 640;
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wbs_adr_i = GFX_TARGET_SIZE_X;
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 480;
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wbs_adr_i = GFX_TARGET_SIZE_Y;
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#4 wbs_cyc_i = 0;
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// Set 16 bit color depth
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#2 wbs_cyc_i = 1;
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wbs_dat_i = GFX_CTRL_CD16;
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wbs_adr_i = GFX_CONTROL;
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#4 wbs_cyc_i = 0;
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// Enable colorkey
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 32'h0000F18F; // pink color
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wbs_adr_i = GFX_COLORKEY;
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = GFX_COLORKEY_ENABLE | GFX_CTRL_CD16;
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wbs_adr_i = GFX_CONTROL;
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#4 wbs_cyc_i = 0;
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// set cliparea
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 0;
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wbs_adr_i = GFX_CLIP_PIXEL0_X; // Clip Pixel 0
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 0;
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wbs_adr_i = GFX_CLIP_PIXEL0_Y; // Clip Pixel 0
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 640;
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wbs_adr_i = GFX_CLIP_PIXEL1_X; // Clip Pixel 1
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 480;
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wbs_adr_i = GFX_CLIP_PIXEL1_Y; // Clip Pixel 1
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#4 wbs_cyc_i = 0;
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// oc_gfx_enable_tex0(1)
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#2 wbs_cyc_i = 1;
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wbs_dat_i = GFX_TEXTURE_ENABLE | GFX_COLORKEY_ENABLE | GFX_CTRL_CD16;
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wbs_adr_i = GFX_CONTROL;
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#4 wbs_cyc_i = 0;
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// oc_gfx_bind_tex0(0x01f00000, 10, 10)
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#2 wbs_cyc_i = 1;
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wbs_dat_i = GFX_VMEM;
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wbs_adr_i = GFX_TEX0_BASE;
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 10;
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wbs_adr_i = GFX_TEX0_SIZE_X;
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 10;
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wbs_adr_i = GFX_TEX0_SIZE_Y;
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#4 wbs_cyc_i = 0;
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// oc_gfx_curve(10, 10, 10, 15, 15, 15, 15, 10, 0xf800f800);
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 10 << subpixel_width;
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wbs_adr_i = GFX_DEST_PIXEL_X;
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 10 << subpixel_width;
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wbs_adr_i = GFX_DEST_PIXEL_Y;
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = GFX_TEXTURE_ENABLE | GFX_COLORKEY_ENABLE | GFX_CTRL_CD16 | GFX_ACTIVE_POINT0 | GFX_FORWARD_POINT;
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wbs_adr_i = GFX_CONTROL;
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#4 wbs_cyc_i = 0;
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// p1.x = 10
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 15 << subpixel_width;
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wbs_adr_i = GFX_DEST_PIXEL_Y;
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = GFX_TEXTURE_ENABLE | GFX_COLORKEY_ENABLE | GFX_CTRL_CD16 | GFX_ACTIVE_POINT2 | GFX_FORWARD_POINT;
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wbs_adr_i = GFX_CONTROL;
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 15 << subpixel_width;
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wbs_adr_i = GFX_DEST_PIXEL_X;
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#4 wbs_cyc_i = 0;
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// p2.y = 15
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#2 wbs_cyc_i = 1;
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wbs_dat_i = GFX_TEXTURE_ENABLE | GFX_COLORKEY_ENABLE | GFX_CTRL_CD16 | GFX_ACTIVE_POINT1 | GFX_FORWARD_POINT;
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wbs_adr_i = GFX_CONTROL;
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 0;
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wbs_adr_i = GFX_U0;
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 0;
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wbs_adr_i = GFX_V0;
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 100;
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wbs_adr_i = GFX_U1;
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 0;
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wbs_adr_i = GFX_V1;
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 100;
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wbs_adr_i = GFX_U2;
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#4 wbs_cyc_i = 0;
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 100;
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wbs_adr_i = GFX_V2;
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#4 wbs_cyc_i = 0;
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/*
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// p3.x = 15
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283 |
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 10 << subpixel_width;
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286 |
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wbs_adr_i = GFX_DEST_PIXEL_Y;
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#4 wbs_cyc_i = 0;
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288 |
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#2 wbs_cyc_i = 1;
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wbs_dat_i = GFX_TEXTURE_ENABLE | GFX_COLORKEY_ENABLE | GFX_CTRL_CD16 | GFX_ACTIVE_POINT3 | GFX_FORWARD_POINT;
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wbs_adr_i = GFX_CONTROL;
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#4 wbs_cyc_i = 0;
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*/
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294 |
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#2 wbs_cyc_i = 1;
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wbs_dat_i = 32'hf800f800; // Red
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297 |
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wbs_adr_i = GFX_COLOR0;
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298 |
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#4 wbs_cyc_i = 0;
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299 |
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300 |
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#2 wbs_cyc_i = 1; // TODO CURVE
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301 |
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wbs_dat_i = GFX_DRAW_TRI | GFX_DRAW_CURVE | GFX_INTERP | GFX_CTRL_CD16 | GFX_TEXTURE_ENABLE; // | GFX_BEZIER_FILL;
|
302 |
|
|
wbs_adr_i = GFX_CONTROL;
|
303 |
|
|
#4 wbs_cyc_i = 0;
|
304 |
|
|
|
305 |
|
|
// After a while, set every pixel read to the color key (demonstrates that colorkeyed pixels are not written)
|
306 |
|
|
#200 wbm_read_dat_i = 32'hf18ff18f;
|
307 |
|
|
|
308 |
|
|
// TODO: Demonstrate alpha blending
|
309 |
|
|
|
310 |
|
|
|
311 |
|
|
|
312 |
|
|
wbm_read_dat_i = #40 32'hffffffff;
|
313 |
|
|
|
314 |
|
|
// Draw a Rectangle
|
315 |
|
|
// oc_gfx_rect(110, 110, 115, 115, 0xf800f800);
|
316 |
|
|
#200 wbs_cyc_i = 1;
|
317 |
|
|
wbs_dat_i = 110 << 16; // (110 << 16) | 110
|
318 |
|
|
wbs_adr_i = GFX_DEST_PIXEL_X;
|
319 |
|
|
#4 wbs_cyc_i = 0;
|
320 |
|
|
|
321 |
|
|
#2 wbs_cyc_i = 1;
|
322 |
|
|
wbs_dat_i = 110 << 16; // (110 << 16) | 110
|
323 |
|
|
wbs_adr_i = GFX_DEST_PIXEL_Y;
|
324 |
|
|
#4 wbs_cyc_i = 0;
|
325 |
|
|
|
326 |
|
|
#2 wbs_cyc_i = 1;
|
327 |
|
|
wbs_dat_i = GFX_TEXTURE_ENABLE | GFX_COLORKEY_ENABLE | GFX_CTRL_CD16 | GFX_ACTIVE_POINT0 | GFX_FORWARD_POINT;
|
328 |
|
|
wbs_adr_i = GFX_CONTROL;
|
329 |
|
|
#4 wbs_cyc_i = 0;
|
330 |
|
|
|
331 |
|
|
#2 wbs_cyc_i = 1;
|
332 |
|
|
wbs_dat_i = 115 << 16; // (115 << 16) | 115
|
333 |
|
|
wbs_adr_i = GFX_DEST_PIXEL_X;
|
334 |
|
|
#4 wbs_cyc_i = 0;
|
335 |
|
|
|
336 |
|
|
#2 wbs_cyc_i = 1;
|
337 |
|
|
wbs_dat_i = 115 << 16; // (115 << 16) | 115
|
338 |
|
|
wbs_adr_i = GFX_DEST_PIXEL_Y;
|
339 |
|
|
#4 wbs_cyc_i = 0;
|
340 |
|
|
|
341 |
|
|
#2 wbs_cyc_i = 1;
|
342 |
|
|
wbs_dat_i = GFX_TEXTURE_ENABLE | GFX_COLORKEY_ENABLE | GFX_CTRL_CD16 | GFX_ACTIVE_POINT1 | GFX_FORWARD_POINT;
|
343 |
|
|
wbs_adr_i = GFX_CONTROL;
|
344 |
|
|
#4 wbs_cyc_i = 0;
|
345 |
|
|
|
346 |
|
|
#2 wbs_cyc_i = 1; // Draw the rect
|
347 |
|
|
wbs_dat_i = GFX_DRAW_RECT | GFX_CTRL_CD16;
|
348 |
|
|
wbs_adr_i = GFX_CONTROL;
|
349 |
|
|
#4 wbs_cyc_i = 0;
|
350 |
|
|
|
351 |
|
|
// Draw a bunch of lines
|
352 |
|
|
|
353 |
|
|
//draw line ############### 1
|
354 |
|
|
#200 wbs_cyc_i = 1;
|
355 |
|
|
wbs_dat_i = 4;
|
356 |
|
|
wbs_adr_i = GFX_DEST_PIXEL_X;
|
357 |
|
|
#4 wbs_cyc_i = 0;
|
358 |
|
|
|
359 |
|
|
#2 wbs_cyc_i = 1;
|
360 |
|
|
wbs_dat_i = 4;
|
361 |
|
|
wbs_adr_i = GFX_DEST_PIXEL_Y;
|
362 |
|
|
#4 wbs_cyc_i = 0;
|
363 |
|
|
|
364 |
|
|
#2 wbs_cyc_i = 1;
|
365 |
|
|
wbs_dat_i = GFX_TEXTURE_ENABLE | GFX_COLORKEY_ENABLE | GFX_CTRL_CD16 | GFX_ACTIVE_POINT0 | GFX_FORWARD_POINT;
|
366 |
|
|
wbs_adr_i = GFX_CONTROL;
|
367 |
|
|
#4 wbs_cyc_i = 0;
|
368 |
|
|
|
369 |
|
|
#2 wbs_cyc_i = 1;
|
370 |
|
|
wbs_dat_i = 8;
|
371 |
|
|
wbs_adr_i = GFX_DEST_PIXEL_X;
|
372 |
|
|
#4 wbs_cyc_i = 0;
|
373 |
|
|
|
374 |
|
|
#2 wbs_cyc_i = 1;
|
375 |
|
|
wbs_dat_i = 6;
|
376 |
|
|
wbs_adr_i = GFX_DEST_PIXEL_Y;
|
377 |
|
|
#4 wbs_cyc_i = 0;
|
378 |
|
|
|
379 |
|
|
#2 wbs_cyc_i = 1;
|
380 |
|
|
wbs_dat_i = GFX_TEXTURE_ENABLE | GFX_COLORKEY_ENABLE | GFX_CTRL_CD16 | GFX_ACTIVE_POINT1 | GFX_FORWARD_POINT;
|
381 |
|
|
wbs_adr_i = GFX_CONTROL;
|
382 |
|
|
#4 wbs_cyc_i = 0;
|
383 |
|
|
|
384 |
|
|
#2 wbs_cyc_i = 1;
|
385 |
|
|
wbs_dat_i = GFX_DRAW_LINE | GFX_CTRL_CD16;
|
386 |
|
|
wbs_adr_i = GFX_CONTROL;
|
387 |
|
|
#4 wbs_cyc_i = 0;
|
388 |
|
|
//#########################
|
389 |
|
|
/*
|
390 |
|
|
//draw line ############### 2
|
391 |
|
|
#100 wbs_cyc_i = 1;
|
392 |
|
|
wbs_dat_i = 32'h00040004; // (110 << 16) | 110
|
393 |
|
|
wbs_adr_i = GFX_DEST_PIXEL0;
|
394 |
|
|
#4 wbs_cyc_i = 0;
|
395 |
|
|
|
396 |
|
|
#2 wbs_cyc_i = 1;
|
397 |
|
|
wbs_dat_i = 32'h00060008; // (115 << 16) | 115
|
398 |
|
|
wbs_adr_i = GFX_DEST_PIXEL1;
|
399 |
|
|
#4 wbs_cyc_i = 0;
|
400 |
|
|
|
401 |
|
|
#2 wbs_cyc_i = 1;
|
402 |
|
|
wbs_dat_i = GFX_CONTROL_LINE | GFX_CONTROL_CD16 | GFX_CLIPPING_ENABLE;
|
403 |
|
|
wbs_adr_i = GFX_CONTROL;
|
404 |
|
|
#4 wbs_cyc_i = 0;
|
405 |
|
|
//#########################
|
406 |
|
|
|
407 |
|
|
//draw line ############### 3
|
408 |
|
|
#10 wbs_cyc_i = 1;
|
409 |
|
|
wbs_dat_i = 32'h00040004; // (110 << 16) | 110
|
410 |
|
|
wbs_adr_i = GFX_DEST_PIXEL0;
|
411 |
|
|
#4 wbs_cyc_i = 0;
|
412 |
|
|
|
413 |
|
|
#2 wbs_cyc_i = 1;
|
414 |
|
|
wbs_dat_i = 32'h00020008; // (115 << 16) | 115
|
415 |
|
|
wbs_adr_i = GFX_DEST_PIXEL1;
|
416 |
|
|
#4 wbs_cyc_i = 0;
|
417 |
|
|
|
418 |
|
|
#2 wbs_cyc_i = 1;
|
419 |
|
|
wbs_dat_i = GFX_CONTROL_LINE | GFX_CONTROL_CD16;
|
420 |
|
|
wbs_adr_i = GFX_CONTROL;
|
421 |
|
|
#4 wbs_cyc_i = 0;
|
422 |
|
|
//#########################
|
423 |
|
|
|
424 |
|
|
//draw line ############### 4
|
425 |
|
|
#10 wbs_cyc_i = 1;
|
426 |
|
|
wbs_dat_i = 32'h00040004; // (110 << 16) | 110
|
427 |
|
|
wbs_adr_i = GFX_DEST_PIXEL0;
|
428 |
|
|
#4 wbs_cyc_i = 0;
|
429 |
|
|
|
430 |
|
|
#2 wbs_cyc_i = 1;
|
431 |
|
|
wbs_dat_i = 32'h00000006; // (115 << 16) | 115
|
432 |
|
|
wbs_adr_i = GFX_DEST_PIXEL1;
|
433 |
|
|
#4 wbs_cyc_i = 0;
|
434 |
|
|
|
435 |
|
|
#2 wbs_cyc_i = 1;
|
436 |
|
|
wbs_dat_i = GFX_CONTROL_LINE | GFX_CONTROL_CD16;
|
437 |
|
|
wbs_adr_i = GFX_CONTROL;
|
438 |
|
|
#4 wbs_cyc_i = 0;
|
439 |
|
|
//#########################
|
440 |
|
|
|
441 |
|
|
//draw line ############### 5
|
442 |
|
|
#10 wbs_cyc_i = 1;
|
443 |
|
|
wbs_dat_i = 32'h00040004; // (110 << 16) | 110
|
444 |
|
|
wbs_adr_i = GFX_DEST_PIXEL0;
|
445 |
|
|
#4 wbs_cyc_i = 0;
|
446 |
|
|
|
447 |
|
|
#2 wbs_cyc_i = 1;
|
448 |
|
|
wbs_dat_i = 32'h00000002; // (115 << 16) | 115
|
449 |
|
|
wbs_adr_i = GFX_DEST_PIXEL1;
|
450 |
|
|
#4 wbs_cyc_i = 0;
|
451 |
|
|
|
452 |
|
|
#2 wbs_cyc_i = 1;
|
453 |
|
|
wbs_dat_i = GFX_CONTROL_LINE | GFX_CONTROL_CD16;
|
454 |
|
|
wbs_adr_i = GFX_CONTROL;
|
455 |
|
|
#4 wbs_cyc_i = 0;
|
456 |
|
|
//#########################
|
457 |
|
|
|
458 |
|
|
//draw line ############### 6
|
459 |
|
|
#10 wbs_cyc_i = 1;
|
460 |
|
|
wbs_dat_i = 32'h00040004; // (110 << 16) | 110
|
461 |
|
|
wbs_adr_i = GFX_DEST_PIXEL0;
|
462 |
|
|
#4 wbs_cyc_i = 0;
|
463 |
|
|
|
464 |
|
|
#2 wbs_cyc_i = 1;
|
465 |
|
|
wbs_dat_i = 32'h00020000; // (115 << 16) | 115
|
466 |
|
|
wbs_adr_i = GFX_DEST_PIXEL1;
|
467 |
|
|
#4 wbs_cyc_i = 0;
|
468 |
|
|
|
469 |
|
|
#2 wbs_cyc_i = 1;
|
470 |
|
|
wbs_dat_i = GFX_CONTROL_LINE | GFX_CONTROL_CD16;
|
471 |
|
|
wbs_adr_i = GFX_CONTROL;
|
472 |
|
|
#4 wbs_cyc_i = 0;
|
473 |
|
|
//#########################
|
474 |
|
|
|
475 |
|
|
//draw line ############### 7
|
476 |
|
|
#10 wbs_cyc_i = 1;
|
477 |
|
|
wbs_dat_i = 32'h00040004; // (110 << 16) | 110
|
478 |
|
|
wbs_adr_i = GFX_DEST_PIXEL0;
|
479 |
|
|
#4 wbs_cyc_i = 0;
|
480 |
|
|
|
481 |
|
|
#2 wbs_cyc_i = 1;
|
482 |
|
|
wbs_dat_i = 32'h00060000; // (115 << 16) | 115
|
483 |
|
|
wbs_adr_i = GFX_DEST_PIXEL1;
|
484 |
|
|
#4 wbs_cyc_i = 0;
|
485 |
|
|
|
486 |
|
|
#2 wbs_cyc_i = 1;
|
487 |
|
|
wbs_dat_i = GFX_CONTROL_LINE | GFX_CONTROL_CD16;
|
488 |
|
|
wbs_adr_i = GFX_CONTROL;
|
489 |
|
|
#4 wbs_cyc_i = 0;
|
490 |
|
|
//#########################
|
491 |
|
|
|
492 |
|
|
//draw line ############### 8
|
493 |
|
|
#10 wbs_cyc_i = 1;
|
494 |
|
|
wbs_dat_i = 32'h00040004; // (110 << 16) | 110
|
495 |
|
|
wbs_adr_i = GFX_DEST_PIXEL0;
|
496 |
|
|
#4 wbs_cyc_i = 0;
|
497 |
|
|
|
498 |
|
|
#2 wbs_cyc_i = 1;
|
499 |
|
|
wbs_dat_i = 32'h00080002; // (115 << 16) | 115
|
500 |
|
|
wbs_adr_i = GFX_DEST_PIXEL1;
|
501 |
|
|
#4 wbs_cyc_i = 0;
|
502 |
|
|
|
503 |
|
|
#2 wbs_cyc_i = 1;
|
504 |
|
|
wbs_dat_i = GFX_CONTROL_LINE | GFX_CONTROL_CD16;
|
505 |
|
|
wbs_adr_i = GFX_CONTROL;
|
506 |
|
|
#4 wbs_cyc_i = 0;
|
507 |
|
|
//#########################
|
508 |
|
|
*/
|
509 |
|
|
#10000 $finish;
|
510 |
|
|
end
|
511 |
|
|
|
512 |
|
|
// Set up ack behaviour from memory circuits
|
513 |
|
|
always @(posedge wb_clk_i)
|
514 |
|
|
begin
|
515 |
|
|
wbm_write_ack_i <= #1 wbm_write_cyc_o & !wbm_write_ack_i;
|
516 |
|
|
wbm_read_ack_i <= #1 wbm_read_cyc_o & !wbm_read_ack_i;
|
517 |
|
|
end
|
518 |
|
|
|
519 |
|
|
// Set up clock
|
520 |
|
|
always begin
|
521 |
|
|
#1 wb_clk_i = ~wb_clk_i;
|
522 |
|
|
end
|
523 |
|
|
|
524 |
|
|
// Instansiate module
|
525 |
|
|
gfx_top top(
|
526 |
|
|
.wb_clk_i (wb_clk_i),
|
527 |
|
|
.wb_rst_i (wb_rst_i),
|
528 |
|
|
.wb_inta_o (wb_inta_o),
|
529 |
|
|
// Wishbone master signals (interfaces with video memory)
|
530 |
|
|
.wbm_write_cyc_o (wbm_write_cyc_o),
|
531 |
|
|
.wbm_write_stb_o (wbm_write_stb_o),
|
532 |
|
|
.wbm_write_cti_o (wbm_write_cti_o),
|
533 |
|
|
.wbm_write_bte_o (wbm_write_bte_o),
|
534 |
|
|
.wbm_write_we_o (wbm_write_we_o),
|
535 |
|
|
.wbm_write_adr_o (wbm_write_adr_o),
|
536 |
|
|
.wbm_write_sel_o (wbm_write_sel_o),
|
537 |
|
|
.wbm_write_ack_i (wbm_write_ack_i),
|
538 |
|
|
.wbm_write_err_i (wbm_write_err_i),
|
539 |
|
|
.wbm_write_dat_o (wbm_write_dat_o),
|
540 |
|
|
// Wishbone master signals (interfaces with video memory)
|
541 |
|
|
.wbm_read_cyc_o (wbm_read_cyc_o),
|
542 |
|
|
.wbm_read_stb_o (wbm_read_stb_o),
|
543 |
|
|
.wbm_read_cti_o (wbm_read_cti_o),
|
544 |
|
|
.wbm_read_bte_o (wbm_read_bte_o),
|
545 |
|
|
.wbm_read_we_o (wbm_read_we_o),
|
546 |
|
|
.wbm_read_adr_o (wbm_read_adr_o),
|
547 |
|
|
.wbm_read_sel_o (wbm_read_sel_o),
|
548 |
|
|
.wbm_read_ack_i (wbm_read_ack_i),
|
549 |
|
|
.wbm_read_err_i (wbm_read_err_i),
|
550 |
|
|
.wbm_read_dat_i (wbm_read_dat_i),
|
551 |
|
|
// Wishbone slave signals (interfaces with main bus/CPU)
|
552 |
|
|
.wbs_cyc_i (wbs_cyc_i),
|
553 |
|
|
.wbs_stb_i (wbs_stb_i),
|
554 |
|
|
.wbs_cti_i (wbs_cti_i),
|
555 |
|
|
.wbs_bte_i (wbs_bte_i),
|
556 |
|
|
.wbs_we_i (wbs_we_i),
|
557 |
|
|
.wbs_adr_i (wbs_adr_i),
|
558 |
|
|
.wbs_sel_i (wbs_sel_i),
|
559 |
|
|
.wbs_ack_o (wbs_ack_o),
|
560 |
|
|
.wbs_err_o (wbs_err_o),
|
561 |
|
|
.wbs_dat_i (wbs_dat_i),
|
562 |
|
|
.wbs_dat_o (wbs_dat_o)
|
563 |
|
|
);
|
564 |
|
|
|
565 |
|
|
defparam top.point_width = point_width;
|
566 |
|
|
defparam top.subpixel_width = subpixel_width;
|
567 |
|
|
defparam top.fifo_depth = fifo_depth;
|
568 |
|
|
|
569 |
|
|
endmodule
|