diff options
| author | Alejandro Soto <alejandro@34project.org> | 2024-05-05 17:34:22 -0600 |
|---|---|---|
| committer | Alejandro Soto <alejandro@34project.org> | 2024-05-05 17:38:27 -0600 |
| commit | 081a8a3ba8bfe036f31da53f9c041a2caa30fce2 (patch) | |
| tree | 7d712b67d3dc1ad3d37041562774ba3c4e5a7f49 /rtl/gfx/gfx_fix_vertex.sv | |
| parent | e5b64ea353678baabd16d245fcfaa3384e1acf8f (diff) | |
rtl/legacy_gfx: rename gfx -> legacy_gfx
Diffstat (limited to 'rtl/gfx/gfx_fix_vertex.sv')
| -rw-r--r-- | rtl/gfx/gfx_fix_vertex.sv | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/rtl/gfx/gfx_fix_vertex.sv b/rtl/gfx/gfx_fix_vertex.sv deleted file mode 100644 index 728f3b6..0000000 --- a/rtl/gfx/gfx_fix_vertex.sv +++ /dev/null @@ -1,64 +0,0 @@ -`include "gfx/gfx_defs.sv" - -module gfx_fix_vertex -( - input logic clk, - - input vec4 in_vertex, - input logic stall, - - output raster_xyzw out_vertex -); - - fixed x, y; - raster_xyzw fixed_vertex, corrected; - fixed[`FLOATS_PER_VEC - 1:0] fixed_vals, corrected_vals, skid_vals; - - assign out_vertex = skid_vals; - assign fixed_vertex = fixed_vals; - assign corrected_vals = corrected; - - assign x = fixed_vertex.xy.x; - assign y = fixed_vertex.xy.y; - - genvar i; - generate - for (i = 0; i < `FLOATS_PER_VEC; ++i) begin: components - gfx_fp_fix fix - ( - .in(in_vertex[i]), - .out(fixed_vals[i]), - .* - ); - - gfx_skid_buf #(.WIDTH($bits(fixed))) skid - ( - .in(corrected_vals[i]), - .out(skid_vals[i]), - .* - ); - end - endgenerate - - always_ff @(posedge clk) - if (!stall) begin - /* x * `GFX_X_RES / 2 - * = x * 320 - * = x * 64 * 5 - * = (x * 5) << 6 - * = (x * (4 + 1)) << 6 - * = ((x << 2) + x) << 6 - * - * y * `GFX_Y_RES / 2 - * = y * 240 - * = y * 16 * 15 - * = (y * 15) << 4 - * = (y * (16 - 1)) << 4 - * = ((y << 4) - y) << 4 - */ - corrected.zw <= fixed_vertex.zw; - corrected.xy.x <= ((x << 2) + x) << 6; - corrected.xy.y <= ((y << 4) - y) << 4; - end - -endmodule |
