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