cpu/lib/bh_assert.sv

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`timescale 1ns/1ps
package bh_assert;
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int bh_assert_pass_count = 0;
int bh_assert_fail_count = 0;
int bh_assert_warn_count = 0;
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localparam BH_ASSERT_LOG_LEVEL_FAIL = 0;
localparam BH_ASSERT_LOG_LEVEL_ASSERT = 1;
localparam BH_ASSERT_LOG_LEVEL_WARN = 2;
localparam BH_ASSERT_LOG_LEVEL_INFO = 3;
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int bh_assert_log_level = BH_ASSERT_LOG_LEVEL_INFO; // 0 = errors only, 1 = all assertions, 2 = warnings, 3 = info
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localparam COLOR_RED = "\033[31m";
localparam COLOR_YELLOW = "\033[33m";
localparam COLOR_GREEN = "\033[32m";
localparam COLOR_NORMAL = "\033[0;39m";
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task bh_assert_equal(logic [127:0] val, logic [127:0] expected, string description);
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// display results
$timeformat(-9, 2, " ns", 20);
$display(
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"%t: %s: %8d %s %8d - %s",
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$time,
val === expected ? {COLOR_GREEN, "PASS", COLOR_NORMAL} : {COLOR_RED, "FAIL", COLOR_NORMAL},
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val,
val === expected ? "==" : "!=",
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expected,
description
);
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// update statistics
if (val === expected) begin
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bh_assert_pass_count = bh_assert_pass_count + 1;
end else begin
bh_assert_fail_count = bh_assert_fail_count + 1;
end
endtask
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task bh_assert_stats;
$timeformat(-9, 2, " ns", 20);
$display("%t: DONE: %1d pass, %1d fail, %1d warn", $time, bh_assert_pass_count, bh_assert_fail_count, bh_assert_warn_count);
if (bh_assert_pass_count + bh_assert_fail_count == 0) begin
$display("%sERROR%s: no assertions found", COLOR_YELLOW, COLOR_NORMAL);
// TODO: error in a better way?
end else if (bh_assert_fail_count > 0) begin
$display("%sERROR%s: some tests failed", COLOR_RED, COLOR_NORMAL);
end else begin
$display("%sSUCCESS%s: all tests passed", COLOR_GREEN, COLOR_NORMAL);
end
endtask
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task bh_info(string description);
if (bh_assert_log_level >= BH_ASSERT_LOG_LEVEL_INFO) begin
$timeformat(-9, 2, " ns", 20);
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$display("%t: INFO: %s", $time, description);
end
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endtask
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task bh_warn(string description);
if (bh_assert_log_level >= BH_ASSERT_LOG_LEVEL_WARN) begin
$timeformat(-9, 2, " ns", 20);
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$display("%t: %sWARN%s: %s", $time, COLOR_YELLOW, COLOR_NORMAL, description);
end
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bh_assert_warn_count = bh_assert_warn_count + 1;
endtask
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endpackage