Detect when there is no next cell for DSP chain

2024-09-12 09:39:12 +02:00 · 2024-09-12 09:39:12 +02:00 · b9b9b241ab
commit b9b9b241ab
parent 400bc09151
1 changed files with 4 additions and 0 deletions
--- a/himbaechel/uarch/ng-ultra/location_map.cc
+++ b/himbaechel/uarch/ng-ultra/location_map.cc
@ -457,6 +457,10 @@ namespace ng_ultra {
 Loc getNextLocInDSPChain(const NgUltraImpl *impl, Loc loc)
 {
    BelId bel = impl->ctx->getBelByLocation(loc);
+    if (impl->dsp_cascade.count(bel)==0) {
+        loc.z = -1; // End of chain
+        return loc;
+    }
    BelId dsp = impl->dsp_cascade.at(bel);
    return impl->ctx->getBelLocation(dsp);
 }