cheat for The Spy Strikes Back

src/prelaunch/spy.strikes.bak.a

@@ -0,0 +1,27 @@
+;license:MIT
+;(c) 2019 by 4am
+
+!cpu 6502
+!to "build/PRELAUNCH/SPY.STRIKES.BAK",plain
+*=$106
+
+         !source "src/prelaunch/common.a"
+
+         +ENABLE_ACCEL
+         lda   #$60
+         sta   $0849
+         jsr   $0800      ; decompress
+         +GET_MACHINE_STATUS
+         and   #CHEATS_ENABLED
+         beq   +
+                          ; lives in $17
+         lda   #$A5
+         sta   $6AE7      ; patch - don't decrease lives
+         sta   $87EE      ; patch - don't increase lives
++
+         +DISABLE_ACCEL
+         jmp   $6000
+
+!if * > $1C0 {
+  !error "code is too large, ends at ", *
+}