SECTION "HRAM", HRAM

; The OAM DMA routine
hOAMDMA::
    ds 8 ; OAMDMAEnd - OAMDMA


; Currently-loaded ROM bank, useful to save back (eg. during ints)
hCurROMBank::
    db


; Used by the PB16 decompressor
pb16_byte0::
    db


; Place variables that need to be zero-cleared on init (and soft-reset) below
hClearStart::


; Used to let VBlank know it need to ACK
; NOTE: VBlank doesn't preserve AF **on purpose** when this is set
; Thus, make sure to wait for Z set before continuing
hVBlankFlag::
    db

; Values transferred to hw regs on VBlank
hLCDC::
    db
hSCY::
    db
hSCX::
    db
hWY::
    db
hWX::
    db
hBGP::
    db
hOBP0::
    db
hOBP1::
    db


; Low byte of the current scanline buffer
; Permits double-buffering
hWhichScanlineBuffer::
    db
; Low byte of byte read by STAT handler
; NO TOUCHY
hScanlineFXIndex::
    db

; Scanline FX buffers (scanline, addr, value)
; Double-buffering used to prevent ract conditions
hScanlineFXBuffer1::
    ds 3 * 5 + 1
hScanlineFXBuffer2::
    ds 3 * 5 + 1

; Addr/value pair to allow writing to 2 regs in the same scanline
hSecondFXAddr::
    db
hSecondFXValue::
    db

hIsTextboxActive::
    db
hBackupScanlineFXBuffer::
    ds 3 * 5 + 1


; Joypad regs
hHeldButtons::
    db
hPressedButtons::
    db

; High byte of the shadow OAM buffer to be transferred
; Reset by the VBlank handler to signal transfer completion
hOAMBufferHigh::
    db