mirror of https://github.com/YosysHQ/yosys.git
86 lines
2.0 KiB
Plaintext
86 lines
2.0 KiB
Plaintext
|
# Single-bit $and
|
||
|
|
read_verilog -noopt <<EOT
|
||
|
|
module gold(input i, output o);
|
||
|
|
assign o = 1'bx & i;
|
||
|
|
endmodule
|
||
|
|
EOT
|
||
|
|
select -assert-count 1 t:$and
|
||
|
|
copy gold coarse
|
||
|
|
copy gold fine
|
||
|
|
copy gold coarse_keepdc
|
||
|
|
copy gold fine_keepdc
|
||
|
|
|
||
|
|
cd coarse
|
||
|
|
opt_expr
|
||
|
|
select -assert-none c:*
|
||
|
|
|
||
|
|
cd fine
|
||
|
|
simplemap
|
||
|
|
opt_expr
|
||
|
|
select -assert-none c:*
|
||
|
|
|
||
|
|
cd
|
||
|
|
miter -equiv -flatten -make_assert -make_outputs -ignore_gold_x gold coarse miter
|
||
|
|
sat -verify -prove-asserts -show-ports -enable_undef miter
|
||
|
|
miter -equiv -flatten -make_assert -make_outputs coarse fine miter2
|
||
|
|
sat -verify -prove-asserts -show-ports -enable_undef miter2
|
||
|
|
|
||
|
|
cd coarse_keepdc
|
||
|
|
opt_expr -keepdc
|
||
|
|
select -assert-count 1 c:*
|
||
|
|
|
||
|
|
cd fine_keepdc
|
||
|
|
simplemap
|
||
|
|
opt_expr -keepdc
|
||
|
|
select -assert-count 1 c:*
|
||
|
|
|
||
|
|
cd
|
||
|
|
miter -equiv -flatten -make_assert -make_outputs gold coarse_keepdc miter3
|
||
|
|
sat -verify -prove-asserts -show-ports -enable_undef miter3
|
||
|
|
miter -equiv -flatten -make_assert -make_outputs coarse_keepdc fine_keepdc miter4
|
||
|
|
sat -verify -prove-asserts -show-ports -enable_undef miter4
|
||
|
|
|
||
|
|
|
||
|
|
# Multi-bit $and
|
||
|
|
design -reset
|
||
|
|
read_verilog -noopt <<EOT
|
||
|
|
module gold(input i, output [6:0] o);
|
||
|
|
assign o = {1'bx, 1'b0, 1'b0, 1'b1, 1'bx, 1'b1, i} & {7{i}};
|
||
|
|
endmodule
|
||
|
|
EOT
|
||
|
|
select -assert-count 1 t:$and
|
||
|
|
copy gold coarse
|
||
|
|
copy gold fine
|
||
|
|
copy gold coarse_keepdc
|
||
|
|
copy gold fine_keepdc
|
||
|
|
|
||
|
|
cd coarse
|
||
|
|
opt_expr -fine
|
||
|
|
select -assert-none c:*
|
||
|
|
|
||
|
|
cd fine
|
||
|
|
simplemap
|
||
|
|
opt_expr
|
||
|
|
select -assert-none c:*
|
||
|
|
|
||
|
|
cd
|
||
|
|
miter -equiv -flatten -make_assert -make_outputs -ignore_gold_x gold coarse miter
|
||
|
|
sat -verify -prove-asserts -show-ports -enable_undef miter
|
||
|
|
miter -equiv -flatten -make_assert -make_outputs coarse fine miter2
|
||
|
|
sat -verify -prove-asserts -show-ports -enable_undef miter2
|
||
|
|
|
||
|
|
cd coarse_keepdc
|
||
|
|
opt_expr -fine -keepdc
|
||
|
|
select -assert-count 1 c:*
|
||
|
|
|
||
|
|
cd fine_keepdc
|
||
|
|
simplemap
|
||
|
|
opt_expr -keepdc
|
||
|
|
select -assert-count 2 c:*
|
||
|
|
|
||
|
|
cd
|
||
|
|
miter -equiv -flatten -make_assert -make_outputs gold coarse_keepdc miter3
|
||
|
|
sat -verify -prove-asserts -show-ports -enable_undef miter3
|
||
|
|
miter -equiv -flatten -make_assert -make_outputs coarse_keepdc fine_keepdc miter4
|
||
|
|
sat -verify -prove-asserts -show-ports -enable_undef miter4
|