add Roundabout to the collection

res/GAMES.CONF

@@ -233,6 +233,7 @@
 0000,ROADBLOCK
 0110,ROBOCOP
 0000,ROBOTRON.2084
+0001,ROUNDABOUT
 0001,RUN.FOR.IT
 0000,RUSSKI.DUCK
 0002,SABOTAGE

res/TITLE.HGR/_FileInformation.txt

@@ -211,6 +211,7 @@ RESCUE.RAIDERS=Type(06),AuxType(4000),Access(C3)
 RIBBIT=Type(06),AuxType(4000),Access(C3)
 ROADBLOCK=Type(06),AuxType(4000),Access(C3)
 ROBOTRON.2084=Type(06),AuxType(4000),Access(C3)
+ROUNDABOUT=Type(06),AuxType(4000),Access(C3)
 RUN.FOR.IT=Type(06),AuxType(4000),Access(C3)
 RUSSKI.DUCK=Type(06),AuxType(4000),Access(C3)
 SABOTAGE=Type(06),AuxType(4000),Access(C3)

res/notes/wishlist.txt

@@ -10,7 +10,6 @@ The Movie Monster Game
 Neutrons
 Oil's Well
 Pegasus ][
-Roundabout [priority]
 Shuttle Intercept
 Super Huey
 Super Taxman II

src/prelaunch/roundabout.a

@@ -0,0 +1,28 @@
+;license:MIT
+;(c) 2020 by qkumba
+
+!cpu 6502
+!to "build/PRELAUNCH/ROUNDABOUT",plain
+*=$106
+
+    !source "src/prelaunch/common.a"
+
+         +ENABLE_ACCEL
+         lda   #$60
+         sta   $3D43
+         jsr   $800       ; decompress
+
+         +GET_MACHINE_STATUS
+         and   #CHEATS_ENABLED
+         beq   +
+         lda   #$a5
+         sta   $91EA      ; patch - don't decrease lives
+         sta   $928C      ; patch - don't decrease lives
+         sta   $9758      ; patch - don't increase lives
++
+         +DISABLE_ACCEL
+         jmp   $7000
+
+!if * > $1C0 {
+  !error "code is too large, ends at ", *
+}