GitHub - mwenge/gridrunner: Gridrunner (1982) by Jeff Minter
$0900 to $8000 when the game was loaded we have to apply an offset to find the appropriate spot in the raw disassmbly of gridrunner.prg. This offset in the raw disassembly is $1700: $16FF: 20 18 18 JSR s1818 $1702: 18 CLC $1703: 18 CLC $1704: FF 18 18 .BYTE $FF,$18,$18 ;ISC s1818,X $1707: 18 CLC $1708: F0 20 BEQ b172A $170A: 10 1F BPL b172B...
Source: github.com