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:fix: Exception handling load unit

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Florian Zaruba 2017-08-28 17:36:53 +02:00
parent bb9a67f8a3
commit f6f695a2a0
1 changed files with 8 additions and 10 deletions
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18
src/load_unit.sv
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@ -213,21 +213,19 @@ module load_unit (
endcase
// save the load data for later usage, two possible situation where we need to latch the load data
// 1. If we get a new request
// 2. If we get an exception
if (pop_ld_o || ex_i.valid) begin
load_data_n = in_data;
end
// we got an exception
if (ex_i.valid) begin
if (ex_i.valid && valid_i) begin
// the next state will be the idle state
NS = IDLE;
// pop load
pop_ld_o = 1'b1;
end
// save the load data for later usage
if (pop_ld_o) begin
load_data_n = in_data;
end
// if we just flushed and the queue is not empty or we are getting an rvalid this cycle wait in a extra stage
if (flush_i) begin
NS = WAIT_FLUSH;
@ -249,10 +247,10 @@ module load_unit (
valid_o = 1'b1;
end
// an exception occurred during translation
if (ex_i.valid) begin
if (translation_req_o && ex_i.valid) begin
valid_o = 1'b1;
// if we are waiting for the translation to finish do not give a valid signal yet
end else if (CS == WAIT_TRANSLATION) begin
end else if (translation_req_o) begin
valid_o = 1'b0;
end