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More conservative delay estimates for timing model type ugff.

This commit is contained in:
Brian Taylor 2022-12-07 19:52:11 -08:00 committed by Holger Vogt
parent 2dc44d8079
commit c7b7d14dd6
1 changed files with 19 additions and 4 deletions
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23
src/frontend/udevices.c
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@ -2667,7 +2667,7 @@ static char *get_delays_ugff(char *rem, char *d_name)
char *delays = NULL, *dname;
char *tpdqlh, *tpdqhl, *tpgqlh, *tpgqhl, *tppcqlh, *tppcqhl;
char *d_delay, *enab, *setd, *resetd;
char *s1, *s2;
char *s1, *s2, *larger;
struct timing_data *tdp1, *tdp2, *tdp3, *tdp4, *tdp5, *tdp6;
if (eq(d_name, "d_dlatch")) {
@ -2697,13 +2697,23 @@ static char *get_delays_ugff(char *rem, char *d_name)
tppcqhl = get_estimate(tdp6);
d_delay = NULL;
if (tpdqlh && strlen(tpdqlh) > 0) {
d_delay = tpdqlh;
if (tpdqhl && strlen(tpdqhl) > 0) {
larger = larger_delay(tpdqlh, tpdqhl);
d_delay = larger;
} else {
d_delay = tpdqlh;
}
} else if (tpdqhl && strlen(tpdqhl) > 0) {
d_delay = tpdqhl;
}
enab = NULL;
if (tpgqlh && strlen(tpgqlh) > 0) {
enab = tpgqlh;
if (tpgqhl && strlen(tpgqhl) > 0) {
larger = larger_delay(tpgqlh, tpgqhl);
enab = larger;
} else {
enab = tpgqlh;
}
} else if (tpgqhl && strlen(tpgqhl) > 0) {
enab = tpgqhl;
}
@ -2723,7 +2733,12 @@ static char *get_delays_ugff(char *rem, char *d_name)
setd = NULL;
resetd = NULL;
if (tppcqlh && strlen(tppcqlh) > 0) {
setd = resetd = tppcqlh;
if (tppcqhl && strlen(tppcqhl) > 0) {
larger = larger_delay(tppcqlh, tppcqhl);
setd = resetd = larger;
} else {
setd = resetd = tppcqlh;
}
} else if (tppcqhl && strlen(tppcqhl) > 0) {
setd = resetd = tppcqhl;
}