add Spectre to the collection

res/GAMES.CONF

@@ -236,6 +236,7 @@
 0000,SPACE.QUARKS
 0000,SPACE.RAIDERS
 0005,SPARE.CHANGE
+0001,SPECTRE
 0000,SPDWAY.CLASSIC=Speedway Classic
 0110,SPIDERBOT
 0000,SPIDER.RAID

res/TITLE.HGR/_FileInformation.txt

@@ -214,6 +214,7 @@ SPACE.QUARKS=Type(06),AuxType(4000),Access(C3)
 SPACE.RAIDERS=Type(06),AuxType(4000),Access(C3)
 SPARE.CHANGE=Type(06),AuxType(4000),Access(C3)
 SPDWAY.CLASSIC=Type(06),AuxType(4000),Access(C3)
+SPECTRE=Type(06),AuxType(4000),Access(C3)
 SPIDER.RAID=Type(06),AuxType(4000),Access(C3)
 SPINDIZZY=Type(06),AuxType(4000),Access(C3)
 SPY.HUNTER=Type(06),AuxType(4000),Access(C3)

src/prelaunch/spectre.a

@@ -0,0 +1,30 @@
+;license:MIT
+;(c) 2020 by qkumba
+
+!cpu 6502
+!to "build/PRELAUNCH/SPECTRE",plain
+*=$106
+
+    !source "src/prelaunch/common.a"
+
+         +ENABLE_ACCEL
+         lda   #>(callback-1)
+         sta   $5F08
+         lda   #<(callback-1)
+         sta   $5F0B
+         jmp   $5E2B      ; decompress
+
+callback
+         jsr   $BD78
+         +GET_MACHINE_STATUS
+         and   #CHEATS_ENABLED
+         beq   +
+         lda   #$ad
+         sta   $6A6B      ; patch - don't decrease lives
++
+         +DISABLE_ACCEL
+         jmp   $6000
+
+!if * > $1C0 {
+  !error "code is too large, ends at ", *
+}