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`include "gfx/gfx_defs.sv"
module gfx_sp_combiner
(
input logic clk,
rst_n,
input mat4 a,
b,
input insn_deco deco,
input logic in_valid,
output logic in_ready,
output wb_op wb,
input logic wb_ready,
output logic wb_valid
);
wb_op wb_out;
logic mul_ready, mul_valid, fifo_ready, fifo_valid, skid_ready, out_stall;
assign in_ready = mul_ready && fifo_ready;
gfx_mat_mat mul
(
.q(wb_out.data),
.in_ready(mul_ready),
.in_valid(in_valid && fifo_ready),
.out_ready(skid_ready && fifo_valid),
.out_valid(mul_valid),
.*
);
gfx_fifo #(.WIDTH($bits(vreg_num)), .DEPTH(`GFX_SP_COMBINER_FIFO_DEPTH)) depth
(
.in(deco.dst),
.out(wb_out.dst),
.in_ready(fifo_ready),
.in_valid(in_valid && mul_ready),
.out_ready(skid_ready && mul_valid),
.out_valid(fifo_valid),
.*
);
gfx_skid_flow out_flow
(
.stall(out_stall),
.in_ready(skid_ready),
.in_valid(fifo_valid && mul_valid),
.out_ready(wb_ready),
.out_valid(wb_valid),
.*
);
gfx_skid_buf #(.WIDTH($bits(wb))) out_skid
(
.in(wb_out),
.out(wb),
.stall(out_stall),
.*
);
endmodule
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