; ---------------------------------------------------------------------------
; Zero page, Commodore stuff
+MEMSIZE = $34 ; Size of memory installed
TIME = $8D ; 60HZ clock
-MEMSIZE = $34 ; Size of memory installed
ST = $96 ; IEC status byte
-SECADR = $D3 ; Secondary address
-DEVNUM = $D4 ; Device number
KEY_COUNT = $9E ; Number of keys in input buffer
+RVS = $9F ; Reverse flag
CURS_FLAG = $A7 ; 1 = cursor off
CURS_BLINK = $A8 ; Blink counter
CURS_CHAR = $A9 ; Character under the cursor
CURS_STATE = $AA ; Cursor blink state
SCREEN_PTR = $C4 ; Pointer to current char in text screen
CURS_X = $C6 ; Cursor column
-CURS_Y = $D8 ; Cursor row
+FNLEN = $D1 ; Length of filename
+LFN = $D2 ; Current Logical File Number
+SECADR = $D3 ; Secondary address
+DEVNUM = $D4 ; Device number
SCR_LINELEN = $D5 ; Screen line length
+CURS_Y = $D8 ; Cursor row
+FNADR = $DA ; Pointer to file name
KEY_BUF = $26F ; Keyboard buffer
+;----------------------------------------------------------------------------
+; PET ROM type detection
-; ---------------------------------------------------------------------------
+PET_DETECT = $FFFB
+PET_2000 = $CA
+PET_3000 = $FC
+PET_4000 = $FD
+
+
+;----------------------------------------------------------------------------
; Vector and other locations
IRQVec = $0090