a couple more reset fixes (#369)

src/prelaunch/arena.a

@@ -0,0 +1,20 @@
+;license:MIT
+;(c) 2021 by Frank M.
+
+!cpu 6502
+!to "build/PRELAUNCH/ARENA",plain
+*=$106
+
+    !source "src/prelaunch/common.a"
+
+         +ENABLE_ACCEL
+         lda   #$60
+         sta   $9490
+         jsr   $6000      ; decompress
+         +DISABLE_ACCEL
+
+         jmp   $80D       ; skip changing the reset vector
+
+!if * > $1C0 {
+  !error "code is too large, ends at ", *
+}

src/prelaunch/cosmic.combat.a

@@ -0,0 +1,15 @@
+;license:MIT
+;(c) 2021 by Frank M.
+
+!cpu 6502
+!to "build/PRELAUNCH/COSMIC.COMBAT",plain
+*=$106
+
+    !source "src/prelaunch/common.a"
+
+         +NEW_RESET_VECTOR $BFF0
+         jmp   $1A00
+
+!if * > $1C0 {
+  !error "code is too large, ends at ", *
+}