; Wild Gunman (U) zero-page aliases - Pass 2
; Semantic names for addresses with observed usage patterns; ZpXX names for
; addresses whose role is not yet uniquely determined.

GameMode           = $30 ; Current game mode/state, set to 1 during reset.
NmiPhase           = $20 ; NMI phase flag, set to 1 by NMI handler.
NmiFlag            = $22 ; NMI flag, set to 1 by NMI handler.
Timer2F            = $2F ; Timer incremented each frame in main loop.
Ctrl1              = $16 ; Controller 1 state, checked in MainStateDispatch.
Mode38             = $38 ; Mode byte checked in MainStateDispatch.
OAMBase            = $05EC ; OAM/sprite base address used in reset init.
SpriteData         = $05F0 ; Sprite data destination in reset init.

; Generic zero-page aliases (role not yet uniquely determined)
Zp00               = $00 ; Used as indirect pointer lo in RAM clear loop
Zp01               = $01 ; Used as indirect pointer hi in RAM clear loop
Zp08               = $08 ; Set to $90 during reset (PPUCTRL value)
Zp09               = $09 ; Set to $02 during reset