avr: introduce reference counter for network buffers.

2025-08-18 18:03:24 +02:00
parent 0dc4a3a952
commit 9b1badb310
3 changed files with 57 additions and 6 deletions
--- a/avr/common/m_fixedbuffers.asm
+++ b/avr/common/m_fixedbuffers.asm
@@ -52,7 +52,7 @@ l_loop:
  brcs l_loop
  rjmp l_end           ; use cleared CFLAG
 l_foundfree:
-  ldi r16, 0x80        ; mark as used
+  ldi r16, 0x10        ; mark as used
  st X, r16
  mov r16, r17
  sec                  ; set CFLAG, return bufnum in r16, pointre in X