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|
`include "gfx/gfx_defs.sv"
module gfx
(
input logic clk,
rst_n,
input logic[4:0] cmd_address,
input logic cmd_read,
cmd_write,
input logic[31:0] cmd_writedata,
output logic[31:0] cmd_readdata
);
fp readdata, writedata;
mat4 a, b, q, hold_q;
logic start, done;
assign readdata = hold_q[cmd_address[3:2]][cmd_address[1:0]];
assign writedata = cmd_writedata[`FLOAT_BITS - 1:0];
assign cmd_readdata = {{($bits(cmd_readdata) - `FLOAT_BITS){1'b0}}, readdata};
mat_mat_mul mul
(
.in_ready(),
.in_valid(start),
.out_ready(1),
.out_valid(done),
.*
);
always_ff @(posedge clk) begin
if (cmd_write) begin
if (cmd_address[4])
a[cmd_address[3:2]][cmd_address[1:0]] <= writedata;
else
b[cmd_address[3:2]][cmd_address[1:0]] <= writedata;
end
if (done)
hold_q <= q;
end
always_ff @(posedge clk or negedge rst_n)
start <= !rst_n ? 0 : (cmd_write && cmd_address == 5'b11111);
endmodule
|
