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author | Pavel V. Shatov (Meister) <meisterpaul1@yandex.ru> | 2019-11-19 13:05:02 +0300 |
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committer | Pavel V. Shatov (Meister) <meisterpaul1@yandex.ru> | 2019-11-19 13:05:02 +0300 |
commit | 189dfd62e2385aa2f36c6283628b8d9285c49647 (patch) | |
tree | 0c1c4e314b224fff447a384c959917509d5e0148 /rtl | |
parent | 863cac90f320d6b7587177bc2df798c611fe510b (diff) |
Removed the latch accidentally created while pipelining the uOP engine module.
The FSM previously had four states encoded using two bits, so the next state
logic didn't have a default case, since all the possible states were used.
Addition of the fifth state required one more state bit, so the FSM now has
five states out eight possible and a default case is thus necessary.
Diffstat (limited to 'rtl')
-rw-r--r-- | rtl/modexpng_uop_engine.v | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/rtl/modexpng_uop_engine.v b/rtl/modexpng_uop_engine.v index 1119fbd..2046db7 100644 --- a/rtl/modexpng_uop_engine.v +++ b/rtl/modexpng_uop_engine.v @@ -678,6 +678,7 @@ module modexpng_uop_engine UOP_FSM_STATE_DECODE_1: uop_fsm_state_next = UOP_FSM_STATE_DECODE_2 ; UOP_FSM_STATE_DECODE_2: uop_fsm_state_next = uop_opcode_is_stop ? UOP_FSM_STATE_IDLE : UOP_FSM_STATE_BUSY; UOP_FSM_STATE_BUSY: uop_fsm_state_next = uop_exit_from_busy ? UOP_FSM_STATE_FETCH : UOP_FSM_STATE_BUSY; + default: uop_fsm_state_next = UOP_FSM_STATE_IDLE ; endcase // end |