verilator/test_regress/t/t_tristate.cpp

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2009-01-06 16:03:57 +00:00
// This file ONLY is placed into the Public Domain, for any use,
// without warranty, 2008 by Lane Brooks
#include "Vt_tristate.h"
Vt_tristate *tb = NULL;
double sc_time_stamp() {
return 0;
}
bool check() {
bool pass;
int c = (tb->A >> tb->SEL) & 0x1;
if(tb->Z == c && tb->Y == c && tb->X == c && tb->W == c) {
pass = true;
printf("PASS: ");
} else {
pass = false;
printf("FAIL: ");
}
printf("SEL=%d A=%d W=%d X=%d Y=%d Z=%d\n", tb->SEL, tb->A, tb->W, tb->X, tb->Y, tb->Z);
return pass;
}
int main() {
bool pass = true;
tb = new Vt_tristate("tb");
// loop through every possibility and check the result
for (tb->SEL=0; tb->SEL<2; tb->SEL++) {
for (tb->A=0; tb->A<4; tb->A++) {
tb->eval();
if(!check()) {
pass =false;
}
}
}
if(pass) {
cout << "*-* All Finished *-*" << endl;
tb->final();
} else {
vl_fatal(__FILE__,__LINE__,"top", "Unexpected results from tristate test\n");
}
return 0;
}