PC: $8000, cycles: 7, registers: [a: $00, x: $00, y: $00, sp: $FD], status: ----I-- ldx #$00 PC: $8002, cycles: 9, registers: [a: $00, x: $00, y: $00, sp: $FD], status: ----IZ- lda $00, x PC: $8004, cycles: 13, registers: [a: $00, x: $00, y: $00, sp: $FD], status: ----IZ- dex PC: $8005, cycles: 15, registers: [a: $00, x: $FF, y: $00, sp: $FD], status: ----I-- @: lda $00, x PC: $8005, cycles: 15, registers: [a: $00, x: $FF, y: $00, sp: $FD], status: ----I-- error: out of bounds: indexed access to $00FF falls out of 'zp_buffer' ($00-$10; bounded inclusively below and exclusively above)