X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=asminc%2Fpet.inc;h=a745a89c8b1693a4b1a065c4790f710627c457d1;hb=0fca806b0af11d39f96f0eab4ee1d1e0abea1c40;hp=f685c00b8fbebedc9d0df11ad99788d361adb560;hpb=2469af49d78a3a85a238f5c1e56da2852dfba0bc;p=cc65

diff --git a/asminc/pet.inc b/asminc/pet.inc
index f685c00b8..a745a89c8 100644
--- a/asminc/pet.inc
+++ b/asminc/pet.inc
@@ -6,17 +6,54 @@
 ; ---------------------------------------------------------------------------
 ; Zero page, Commodore stuff
 
-DEVNUM 	       	:= $D4 	    	; Device number
-
-
+VARTAB          := $2A          ; Pointer to start of BASIC variables
+MEMSIZE         := $34          ; Size of memory installed
+TXTPTR          := $77          ; Pointer into BASIC source code
+TIME            := $8D          ; 60HZ clock
+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
+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
+
+BASIC_BUF       := $200         ; Location of command-line
+BASIC_BUF_LEN   = 81            ; Maximum length of command-line
+
+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
+BRKVec          := $0092
+NMIVec          := $0094
 
 ; ---------------------------------------------------------------------------
 ; I/O: 6522 VIA2
 
-VIA   	       	:= $E840
+VIA             := $E840
 VIA_PRB         := $E840
 VIA_PRA         := $E841
-VIA_DDRB      	:= $E842
-VIA_DDRA      	:= $E843
+VIA_DDRB        := $E842
+VIA_DDRA        := $E843