;license:MIT
;(c) 2020-2 by 4am
;

;------------------------------------------------------------------------------
; YE OLDE GRAND UNIFIED MEMORY MAP
;
; MAIN MEMORY
; 0300..03CF - data structures for current puzzle
; 0400..07FF - text page (kept black for switching)
; 0800..19FF - scroll routines (generated at startup)
; 1A00..1BFF - HGR lookup tables
; 1C00..1FFF - ProDOS file buffer
; 2000..3FFF - hi-res page
; 4000+      - program code (relocated to here at startup)
; ...unused...
; 8E10..8F37 - progress of puzzles in current world
; 8F38..8FFF - address lookup table for puzzles within following world data
; 9000..BEB3 - world data (read from disk)
; BEB4..BEFF - (de)acceleration function
;------------------------------------------------------------------------------

; soft switches
KBD =          $C000      ; last key pressed (if any)
STOREOFF =     $C000      ; STA then use the following 4 flags:
READMAINMEM =  $C002      ; STA to read from main mem
READAUXMEM =   $C003      ; STA to read from aux mem
WRITEMAINMEM = $C004      ; STA to write to main mem
WRITEAUXMEM =  $C005      ; STA to write to aux mem
CLRC3ROM =     $C00A      ; STA to use internal Slot 3 ROM (required to use 128K and DHGR)
SETC3ROM =     $C00B      ; STA to use external Slot 3 ROM (required to detect VidHD in slot 3)
CLR80VID =     $C00C      ; 40 columns (also used to get out of DHGR mode)
SET80VID =     $C00D      ; 80 columns (also used to get into DHGR mode)
PRIMARYCHARSET= $C00E     ; no mousetext for you
CLEARKBD =     $C010      ; clear last key pressed
SPEAKER =      $C030      ; chirp chirp
CLOCKCTL =     $C034      ; bits 0-3 are IIgs border color (also VidHD)
GFXMODE =      $C050
TEXTMODE =     $C051
FULLGFX =      $C052
MIXGFX =       $C053
PAGE1 =        $C054      ; page 1 (affects text, HGR, DHGR)
PAGE2 =        $C055      ; page 2 (affects text, HGR, DHGR)
LORES =        $C056
HIRES =        $C057

; ROM routines and addresses
ROM_TEXT =     $FB2F
ROM_MACHINEID =$FBB3
ROM_HOME =     $FC58
ROM_WAIT =     $FCA8
ROM_COUT =     $FDED
ROM_NORMAL =   $FE84      ; NORMAL text (instead of INVERSE or FLASH)
ROM_IN0 =      $FE89      ; SETKBD
ROM_PR0 =      $FE93      ; SETVID

; application-specific addresses
PARAM        = $00        ; word (used by PARAMS_ON_STACK macro)
HTAB         = $24        ; byte
VTAB         = $25        ; byte
original_char = $ED       ; byte
char         = $EE        ; byte
charrow      = $EF        ; byte

GENSCROLLDOWN = $0800     ; 0x0900 bytes
GENSCROLLUP  = $1100      ; 0x0900 bytes
HGRLO        = $1A00      ; 0x00C0 bytes
HGRHI        = $1B00      ; 0x00C0 bytes
WORLDFILEBUFFER = $1C00   ; 0x0400 bytes
PREFSFILEBUFFER = WORLDFILEBUFFER
PROGRESSFILEBUFFER = PREFSFILEBUFFER
PACKEDPROGRESS = $8E10    ; 0x00C0 bytes
PROGRESS     = $8ED0      ; 0x0068 bytes
PUZZLELO     = $8F38      ; 0x0064 bytes
PUZZLEHI     = $8F9C      ; 0x0064 bytes
WORLDDATA    = $9000      ; 0x3F00 bytes max
DisableAccelerator = $BEB4
EnableAccelerator  = DisableAccelerator+3