86 lines
1.4 KiB
NASM
86 lines
1.4 KiB
NASM
|
|
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
|