;Memory equates

RAMChecksum EQU 0FFFEh	;word
nextRAMoffset EQU 0FFFCh	;word, the location of the first free RAM for file storage
nextRAMpage	EQU 0FFFBh		;byte, the page of the first free RAM for file storage
errorHandler EQU 0FFF9h		;word, the location to jump to when an error occurs (SP is reset too)
stackStart EQU 0FFE0h
stackBottom EQU 0FD00h
plotsscreen EQU 0FA00h	;768 bytes
flags EQU plotsscreen-37		;37 bytes, system flags
varTableEnd EQU flags-2	;word
cursorY EQU varTableEnd-1	;byte
cursorX EQU cursorY-1		;byte
contrast EQU cursorY-1		;byte
folderRAMmax EQU contrast-1	;byte, this is the highest folder number currently existing
keyCode EQU folderRAMmax-1			;byte this is the keycode for _getscancode
lastKey EQU keyCode-1			;byte, this is the last key value returned
spriteMask EQU lastKey-1		;miscellaneous, used for sprite masks
userInput EQU spriteMask-50	;the user's input in the CLI, 50 bytes
userInputLen EQU userInput-1	;byte, this is the length of the user's input in the CLI
folderCurrentRAM EQU userInputLen-1		;byte, this is the current folder for the RAM
interruptCount EQU folderCurrentRAM-1	;byte, this is used to count IM 1s
promptOffset EQU interruptCount-1	;byte, this is used to store the X coordinate for the command prompt
fileOP1 EQU promptOffset-11			;11 bytes, this is a general-purpose file register
;In betweeen is reserved for future expansion
variableTable EQU 0F900h


;Keypress equates
skYEqu EQU 65h
skWindow EQU 64h
skZoom EQU 63h
skTrace EQU 62h
skGraph EQU 61h

sk2nd EQU 66h
skMode EQU 67h
skDel EQU 68h

skLeft EQU 02h
skUp EQU 04h
skRight EQU 02h
skDown EQU 01h

skAlpha EQU 58h
skMath EQU 57h
skInverse EQU 56h
skSquared EQU 55h
skLog EQU 54h
skLn EQU 53h
skSto EQU 52h

skGraphvar EQU 48h
skApps EQU 47h
skSin EQU 46h
skComma EQU 45h
sk7 EQU 44h
sk4 EQU 43h
sk1 EQU 42h
sk0 EQU 41h

skStat EQU 38h
skPrgm EQU 37h
skCos EQU 36h
skLParen EQU 35h
sk8 EQU 34h
sk5 EQU 33h
sk2 EQU 32h
skPeriod EQU 31h

skVars EQU 27h
skTan EQU 26h
skRParen EQU 25h
sk9 EQU 24h
sk6 EQU 23h
sk3 EQU 22h
skNegative EQU 21h

skClear EQU 17h
skPower EQU 16h
skDivide EQU 15h
skMultiply EQU 14h
skMinus EQU 13h
skPlus EQU 12h
skEnter EQU 11h

;Flags equates
keyFlags EQU 0			;Flags dealing with keypresses
alphaOn EQU 0			;Set if ALPHA-lock is on, reset if off
onKey EQU 1				;Set if ON has been pressed...programs must reset this themselves

memoryFlags EQU 1			;Flags for memory/disk use
driveActive EQU 0				;0 for flash, 1 for RAM

miscFlags EQU 2			;Flags that weren't like enough to get a whole byte
cursorEnabled EQU 0		;1 if the cursor is enabled
cursorOn EQU 1				;1 if the cursor is currently on

stupidFlags EQU 37
flashWrite EQU 1			;Needed to write flash for boot page routines


;RST routines
rLCD_Delay EQU 08h
rMovToFileOP1 EQU 20h
rInterrupt EQU 38h