add Mars Cars to the collection

res/GAMES.CONF

@@ -156,6 +156,7 @@
 0001,MANIC.MINER
 1100,MARBLE.MADNESS
 0001,MARIO.BROS=Mario Bros.
+0001,MARS.CARS
 1001,MATING.ZONE
 0111,MATTERHORN=Matterhorn Screamer
 1000,MAXWELL.MANOR

res/TITLE.HGR/_FileInformation.txt

@@ -143,6 +143,7 @@ MAD.BOMBER=Type(06),AuxType(4000),Access(C3)
 MANIC.MINER=Type(06),AuxType(4000),Access(C3)
 MARBLE.MADNESS=Type(06),AuxType(4000),Access(C3)
 MARIO.BROS=Type(06),AuxType(4000),Access(C3)
+MARS.CARS=Type(06),AuxType(4000),Access(C3)
 MATING.ZONE=Type(06),AuxType(4000),Access(C3)
 MAXWELL.MANOR=Type(06),AuxType(4000),Access(C3)
 MEGABOTS=Type(06),AuxType(4000),Access(C3)

res/notes/wishlist.txt

@@ -7,7 +7,6 @@ Fat City [priority]
 Lock 'N' Chase [priority]
 Mad Rat
 Marauder
-Mars Cars
 MIRV
 The Movie Monster Game
 Neutrons

src/prelaunch/mars.cars.a

@@ -0,0 +1,34 @@
+;license:MIT
+;(c) 2020 by qkumba
+
+!cpu 6502
+!to "build/PRELAUNCH/MARS.CARS",plain
+*=$106
+
+    !source "src/prelaunch/common.a"
+
+         +ENABLE_ACCEL
+         lda   #$4C
+         sta   $51CD
+         jsr   $800       ; decompress
+         +DISABLE_ACCEL
+         jsr   $1100
+
+         +ENABLE_ACCEL
+         lda   #$60
+         sta   $BE5A
+         jsr   $BE24      ; decompress more
+
+         +GET_MACHINE_STATUS
+         and   #CHEATS_ENABLED
+         beq   +
+         lda   #$ad
+         sta   $70A0      ; patch - don't decrease lives
+         sta   $74E0      ; patch - don't increase lives
++
+         +DISABLE_ACCEL
+         jmp   $7000
+
+!if * > $1C0 {
+  !error "code is too large, ends at ", *
+}