From c2ddefda2ed6badddac5c229f59fcb25860759a4 Mon Sep 17 00:00:00 2001 From: Alejandro Soto Date: Mon, 20 Nov 2023 18:47:55 -0600 Subject: rtl/gfx: remove gfx_{perspective{,_flow}, fp_inv} --- rtl/gfx/gfx_perspective.sv | 69 ---------------------------------------------- 1 file changed, 69 deletions(-) delete mode 100644 rtl/gfx/gfx_perspective.sv (limited to 'rtl/gfx/gfx_perspective.sv') diff --git a/rtl/gfx/gfx_perspective.sv b/rtl/gfx/gfx_perspective.sv deleted file mode 100644 index 6af1724..0000000 --- a/rtl/gfx/gfx_perspective.sv +++ /dev/null @@ -1,69 +0,0 @@ -`include "gfx/gfx_defs.sv" - -module gfx_perspective -( - input logic clk, - - input attr4 clip_attr, - input logic stall, - in_start, - out_start, - - output attr4 ndc_attr, - output fp w_inv -); - - fp selected_w_inv, next_w_inv, vertex_w_inv, w_inv_pipes[`FP_MUL_STAGES]; - vec4 in_pipes[`FP_INV_STAGES], div_q; - - assign w_inv = w_inv_pipes[`FP_MUL_STAGES - 1]; - assign selected_w_inv = in_start ? next_w_inv : vertex_w_inv; - - gfx_fp_inv inv - ( - .a(clip_attr.w), - .q(next_w_inv), - .* - ); - - genvar i; - generate - for (i = 0; i < `FLOATS_PER_VEC; ++i) begin: divs - gfx_fp_mul div - ( - .a(in_pipes[`FP_INV_STAGES - 1][i]), - .b(selected_w_inv), - .q(div_q[i]), - .* - ); - end - - for (i = 1; i < `FP_INV_STAGES; ++i) begin: in - always_ff @(posedge clk) - if (!stall) - in_pipes[i] <= in_pipes[i - 1]; - end - - for (i = 1; i < `FP_MUL_STAGES; ++i) begin: out - always_ff @(posedge clk) - if (!stall) - w_inv_pipes[i] <= w_inv_pipes[i - 1]; - end - endgenerate - - always_comb begin - ndc_attr = div_q; - if (out_start) - ndc_attr.w = `FP_UNIT; - end - - always_ff @(posedge clk) - if (!stall) begin - if (in_start) - vertex_w_inv <= next_w_inv; - - in_pipes[0] <= clip_attr; - w_inv_pipes[0] <= selected_w_inv; - end - -endmodule -- cgit v1.2.3