feat: add interactive FC01 heap4 card

2026-07-20 12:04:14 +02:00
parent bd34c7ec1e
commit 48eccb5e24
39 changed files with 7744 additions and 210 deletions
@@ -0,0 +1,31 @@
+@startuml
+scale 600 height
+top to bottom direction
+skinparam backgroundColor transparent
+skinparam shadowing false
+skinparam defaultFontName Monospace
+skinparam defaultFontSize 10
+skinparam rectangleBorderColor #2c7794
+skinparam rectangleBackgroundColor #edf6fa
+skinparam ArrowColor #8095a1
+title A1 CONTEXT — from linear cursor to reusable heap
+
+rectangle "<<application>>\n01 A / B / C experiment\nrequests payload bytes" as APP
+rectangle "<<public API>>\n02 pvPortMalloc / vPortFree\nheap statistics" as API
+rectangle "<<allocator>>\n03 heap_4\nfirst-fit · split · coalesce" as H4
+rectangle "<<arena>>\n04 ucHeap[4096]\nheaders + payload" as ARENA
+rectangle "<<target>>\n05 Hazard3 / RV32I\nGDB · registers · memory" as TARGET
+
+APP -down-> API : request / release
+API -down-> H4 : direct C call
+H4 -down-> ARENA : manages
+ARENA -down-> TARGET : stored in RAM
+
+note right of H4
+heap_1: allocate only
+heap_2: free, no coalesce
+heap_3: libc wrapper
+heap_4: free + coalesce
+heap_5: multiple regions
+end note
+@enduml