stageci[2];
reg [7:0] out;
- reg typethea = 0; // Whether we have typed the A.
- reg statekick = 0; // State needs to be kicked back to 3'b010 on the next mclk.
-
- // This is guaranteed to converge after two pixclks.
+
+ // We detect when the state should be poked by a high negedge followed
+ // by a high posedge -- if tha thappens, then we're guaranteed that the
+ // state following the current state will be 100.
+ reg lastneg;
always @(negedge mclk)
- if (pixclk && !statekick) begin
- statekick <= 1;
- end else if (statekick) begin // This is the edge of the falling anus.
- statekick <= 0;
- end
+ lastneg <= pixclk;
always @(posedge mclk)
begin
+ if (lastneg && pixclk) // If a pixclk has happened, the state should be reset.
+ state <= 3'b100;
+ else // Otherwise, just poke it forward.
+ state <= {state[1], state[0], state[2]};
+
// Data output handling
if (state[0]) begin
{red, green, blue} <= {out[0],out[3],out[6],out[1],out[4],out[7],out[2],out[5]};
stageb[1] <= mb[`MAXOUTN];
stageci[1] <= curiter[`MAXOUTN];
end
-
- if (statekick) // If a pixclk has happened, the state should be reset.
- state <= 3'b010;
- else // Otherwise, just poke it forward.
- state <= {state[1], state[0], state[2]};
end
MandelUnit mu0(