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Add more repetition asserts; add comments

master
T. Meissner 5 years ago
parent
commit
0595fd8afa
1 changed files with 34 additions and 4 deletions
  1. +34
    -4
      src/psl_sere_consecutive_repetition.vhd

+ 34
- 4
src/psl_sere_consecutive_repetition.vhd View File

@ -31,49 +31,79 @@ begin
SEQ_F : sequencer generic map ("__-___") port map (clk, f);
-- 012345678
SEQ_G : sequencer generic map ("_-_______") port map (clk, g);
SEQ_H : sequencer generic map ("__-_-_-__") port map (clk, h);
SEQ_I : sequencer generic map ("_______-_") port map (clk, i);
SEQ_G : sequencer generic map ("_-________") port map (clk, g);
SEQ_H : sequencer generic map ("__-_-_-___") port map (clk, h);
SEQ_I : sequencer generic map ("________-_") port map (clk, i);
-- All is sensitive to rising edge of clk
default clock is rising_edge(clk);
-- Simple SERE with repetitions done manual without operators
-- This assertion holds
SERE_0_a : assert always {a} |=> {b; b; b; b; c};
-- Repetition of 4 cycles
-- In all these cycles b has to be active
-- This assertion holds
SERE_1_a : assert always {a} |=> {b[*4]; c};
-- Repetition in range of 3 to 5 cycles
-- In all these cycles b has to be active
-- This assertion holds
SERE_2_a : assert always {a} |=> {b[*3 to 5]; c};
-- Repetition of any number of cycles, including none
-- In all these cycles b has to be active
-- This assertion holds
SERE_3_a : assert always {a} |=> {b[*]; c};
-- Repetition of any number of cycles, excluding none
-- In all these cycles b has to be active
-- This assertion holds
SERE_4_a : assert always {a} |=> {b[+]; c};
-- Repetition of any number of cycles, including none
-- In all these cycles e has to be active
-- This assertion holds
SERE_5_a : assert always {d} |=> {e[*]; f};
-- Repetition of any number of cycles, excluding none
-- In all these cycles e has to be active
-- This assertion doesn't hold at cycle 2
SERE_6_a : assert always {d} |=> {e[+]; f};
-- Repetition of 3 cycles
-- In all these cycles h has to be active
-- This assertion doesn't hold at cycle 3
SERE_7_a : assert always {g} |=> {h[*3]; i};
-- Repetition in range of 2 to 4 cycles
-- In all these cycles h has to be active
-- This assertion doesn't hold at cycle 3
SERE_8_a : assert always {g} |=> {h[*2 to 4]; i};
-- Repetition of any number of cycles, including none
-- In all these cycles h has to be active
-- This assertion doesn't hold at cycle 3
SERE_9_a : assert always {g} |=> {h[*]; i};
-- Repetition of any number of cycles, exluding none
-- In all these cycles h has to be active
-- This assertion doesn't hold at cycle 3
SERE_10_a : assert always {g} |=> {h[+]; i};
-- Repetition of any 6 cycles
-- This assertion holds
SERE_11_a : assert always {g} |=> {[*5]; i};
SERE_11_a : assert always {g} |=> {[*6]; i};
-- Upper bound can also be infinity
-- This assertion holds
SERE_12_a : assert always {g} |=> {[*6]; i; not i[*1 to inf]};
-- All repetition operators can also be used with SERE
-- This assertion holds
SERE_13_a : assert always {g} |=> {{h; not h}[*3]; i};
end architecture psl;

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