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H_SPRITEWIDTH EQU $FF8B ; in tiles
H_SPRITEINTERLACECOUNTER EQU $FF8B
H_SPRITEHEIGHT EQU $FF8C ; in tiles
H_SPRITEOFFSET EQU $FF8D
hSoftReset EQU $FF8A
; Initialized to 16.
; Decremented each input iteration if the player
; presses the reset sequence (A+B+SEL+START).
; Soft reset when 0 is reached.
hBaseTileID EQU $FF8B
hItemPrice EQU $FF8B
; counters for blinking down arrow
H_DOWNARROWBLINKCNT1 EQU $FF8B
H_DOWNARROWBLINKCNT2 EQU $FF8C
H_SPRITEDATAOFFSET EQU $FF8B
H_SPRITEINDEX EQU $FF8C
; DisplayTextID's argument
hSpriteIndexOrTextID EQU $FF8C
; Multiplcation and division variables are meant
; to overlap for back-to-back usage. Big endian.
H_MULTIPLICAND EQU $FF96 ; 3 bytes
H_MULTIPLIER EQU $FF99 ; 1 byte
H_PRODUCT EQU $FF95 ; 4 bytes
H_DIVIDEND EQU $FF95 ; 4 bytes
H_DIVISOR EQU $FF99 ; 1 byte
H_QUOTIENT EQU $FF95 ; 4 bytes
H_REMAINDER EQU $FF99 ; 1 byte
; PrintNumber (big endian).
H_PASTLEADINGZEROES EQU $FF95 ; last char printed
H_NUMTOPRINT EQU $FF96 ; 3 bytes
H_POWEROFTEN EQU $FF99 ; 3 bytes
H_SAVEDNUMTOPRINT EQU $FF9C ; 3 bytes
hSerialReceivedNewData EQU $FFA9
; $01 = using external clock
; $02 = using internal clock
; $ff = establishing connection
hSerialConnectionStatus EQU $FFAA
hSerialIgnoringInitialData EQU $FFAB
hSerialSendData EQU $FFAC
hSerialReceiveData EQU $FFAD
; these values are copied to SCX, SCY, and WY during V-blank
hSCX EQU $FFAE
hSCY EQU $FFAF
hWY EQU $FFB0
hJoyHeldLast EQU $FFB1
hJoyReleased EQU $FFB2
hJoyPressed EQU $FFB3
hJoyHeld EQU $FFB4
hJoy5 EQU $FFB5
hJoy6 EQU $FFB6
hJoy7 EQU $FFB7
H_LOADEDROMBANK EQU $FFB8
; is automatic background transfer during V-blank enabled?
; if nonzero, yes
; if zero, no
H_AUTOBGTRANSFERENABLED EQU $FFBA
TRANSFERTOP EQU 0
TRANSFERMIDDLE EQU 1
TRANSFERBOTTOM EQU 2
; 00 = top third of background
; 01 = middle third of background
; 02 = bottom third of background
H_AUTOBGTRANSFERPORTION EQU $FFBB
; the destination address of the automatic background transfer
H_AUTOBGTRANSFERDEST EQU $FFBC ; 2 bytes
; temporary storage for stack pointer during memory transfers that use pop
; to increase speed
H_SPTEMP EQU $FFBF ; 2 bytes
; source address for VBlankCopyBgMap function
; the first byte doubles as the byte that enabled the transfer.
; if it is 0, the transfer is disabled
; if it is not 0, the transfer is enabled
; this means that XX00 is not a valid source address
H_VBCOPYBGSRC EQU $FFC1 ; 2 bytes
; destination address for VBlankCopyBgMap function
H_VBCOPYBGDEST EQU $FFC3 ; 2 bytes
; number of rows for VBlankCopyBgMap to copy
H_VBCOPYBGNUMROWS EQU $FFC5
; size of VBlankCopy transfer in 16-byte units
H_VBCOPYSIZE EQU $FFC6
; source address for VBlankCopy function
H_VBCOPYSRC EQU $FFC7
; destination address for VBlankCopy function
H_VBCOPYDEST EQU $FFC9
; size of source data for VBlankCopyDouble in 8-byte units
H_VBCOPYDOUBLESIZE EQU $FFCB
; source address for VBlankCopyDouble function
H_VBCOPYDOUBLESRC EQU $FFCC
; destination address for VBlankCopyDouble function
H_VBCOPYDOUBLEDEST EQU $FFCE
; controls whether a row or column of 2x2 tile blocks is redrawn in V-blank
; 00 = no redraw
; 01 = redraw column
; 02 = redraw row
H_SCREENEDGEREDRAW EQU $FFD0
REDRAWCOL EQU 1
REDRAWROW EQU 2
H_SCREENEDGEREDRAWADDR EQU $FFD1
hRandomAdd EQU $FFD3
hRandomSub EQU $FFD4
H_FRAMECOUNTER EQU $FFD5 ; decremented every V-blank (used for delays)
; V-blank sets this to 0 each time it runs.
; So, by setting it to a nonzero value and waiting for it to become 0 again,
; you can detect that the V-blank handler has run since then.
H_VBLANKOCCURRED EQU $FFD6
; 00 = indoor
; 01 = cave
; 02 = outdoor
; this is often set to 00 in order to turn off water and flower BG tile animations
hTilesetType EQU $FFD7
H_CURRENTSPRITEOFFSET EQU $FFDA ; multiple of $10
H_WHOSETURN EQU $FFF3 ; 0 on player’s turn, 1 on enemy’s turn
; bit 0: draw HP fraction to the right of bar instead of below (for party menu)
; bit 1: menu is double spaced
hFlags_0xFFF6 EQU $FFF6
hJoyInput EQU $FFF8
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