add prelaunch for Craps

res/ports/casino-craps/src/craps.a

@@ -15,8 +15,8 @@ SHOW_PROGRESS_DURING_DECRUNCH = 0
 
 start
          +INIT_MACHINE
-!if * != $18B6 {
-;  !serious "Adjust prelaunch to patch JSR at ", *, " to JMP"
+!if * != $614d {
+  !serious "Adjust prelaunch to patch JSR at ", *, " to JMP"
 }
          jsr   decrunch              ; compressed data contains target address
          ldx   #0

src/prelaunch/craps.a

@@ -0,0 +1,19 @@
+;license:MIT
+;(c) 2025 by 4am
+
+!cpu 6502
+!to "build/PRELAUNCH.INDEXED/CRAPS",plain
+*=$106
+
+         !source "src/macros.a"
+
+         +ENABLE_ACCEL
+         lda   #$4C
+         sta   $614D
+         jsr   $4000
+         +DISABLE_ACCEL
+         jmp   $6150
+
+!if * > PrelaunchMax {
+  !error "code is too large, ends at ", *
+}