startup code and minimalist kernal support for c65 and mega65

2025-06-24 21:23:04 +02:00
parent bfb16888d1
commit 450c8f7c55
5 changed files with 347 additions and 3 deletions
--- a/asminc/cbm_kernal.inc
+++ b/asminc/cbm_kernal.inc
@@ -218,10 +218,10 @@ UDTIM          := $FFEA
  KBDREAD      := $E5CF
  UPDCRAMPTR   := $EAB2
 .elseif .def(__C64__)
-  CLRSCR       := $E544
-  KBDREAD      := $E5B4
+  CLRSCR       := $E544     ; Clear the screen
+  KBDREAD      := $E5B4     ; Get Character From Keyboard Buffer
  NMIEXIT      := $FEBC
-  UPDCRAMPTR   := $EA24
+  UPDCRAMPTR   := $EA24     ; Update color ram pointer
 .elseif .def(__C128__)
  CLRSCR       := $C142
  KBDREAD      := $C006