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Minor improvements in docs/examples/abstract/abstr.sv

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Signed-off-by: Clifford Wolf <clifford@clifford.at>
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Clifford Wolf 2019-03-27 14:49:35 +01:00
parent afe6960ffe
commit 79b1ac9570
1 changed files with 3 additions and 3 deletions
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6
docs/examples/abstract/abstr.sv
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@ -5,15 +5,15 @@ module demo_counter_abstr (
default clocking @(posedge clock); endclocking
default disable iff (reset);
// make sure the counter doesnt jump over all "magic values"
// make sure the counter doesn't jump over any of the "magic values"
`demo_counter_abstr_mode property ((counter < 123456) |=> (counter <= 123456));
`demo_counter_abstr_mode property ((counter < 234567) |=> (counter <= 234567));
`demo_counter_abstr_mode property ((counter < 345678) |=> (counter <= 345678));
`demo_counter_abstr_mode property ((counter < 456789) |=> (counter <= 456789));
// only allow overflow by visiting the max value
// strictly increasing, only allow overflow by visiting the max value
`demo_counter_abstr_mode property (counter != 20'hfffff |=> $past(counter) < counter);
`demo_counter_abstr_mode property (counter == 20'hfffff |=> !counter);
`demo_counter_abstr_mode property (counter == 20'hfffff |=> counter == 20'h00000);
endmodule
bind demo demo_counter_abstr demo_counter_abstr_i (.*);