10  .OPT NO LIST,NO MLIST›20  .OPT NO CLIST,NO EJECT›30 ; SAVE #D1:ATARIROM.M65›40 ;›50 ; Comments follow in this file›60 ;›70  .TITLE "Atari ROM Disassembly"›80  .IF .NOT .DEF DUNIT›90 @LF .= 0›100  .INCLUDE #D1:SYSEQU.M65›110  .INCLUDE #D1:MACROS.M65›120  .INCLUDE #D1:HARDCODE.M65›130  .ENDIF›140  LIST 0›150  .INCLUDE #D1:INTERUPT.M65›160  LIST 0›170  .INCLUDE #D1:INIT.M65›180  LIST 0›190  .INCLUDE #D1:DISKOPS.M65›200  LIST 0›210  .INCLUDE #D1:PARALLEL.M65›220  LIST 0›230  .INCLUDE #D1:SELFTEST.M65›240  LIST 0›250  .INCLUDE #D1:CHARSET2.M65›260  LIST 0›270  .INCLUDE #D1:ST1.M65›280  .INCLUDE #D1:ST2.M65›290  LIST 0›300  .INCLUDE #D1:FLOAT1.M65›310  .INCLUDE #D1:FLOAT2.M65›320  LIST 0›330  .INCLUDE #D1:CHARSET1.M65›340  LIST 0›350  .INCLUDE #D1:VECTABLE.M65›360  LIST 0›370  .INCLUDE #D1:CIO.M65›380  LIST 0›390  .INCLUDE #D1:PERHNDLR.M65›400  LIST 0›410  .INCLUDE #D1:SIO.M65›420  LIST 0›430  .INCLUDE #D1:STABLE1.M65›440  LIST 0›450  .INCLUDE #D1:PHENTRY.M65›460  LIST 0›470  .INCLUDE #D1:SCREEN1.M65›480  .INCLUDE #D1:SCREEN2.M65›490  .INCLUDE #D1:SCREEN3.M65›500  .INCLUDE #D1:SCREEN4.M65›510  LIST 0›520  .INCLUDE #D1:STABLE2.M65›530  LIST 0›540  .INCLUDE #D1:KEYTABLE.M65›550  LIST 0›560  .INCLUDE #D1:KEYBDIRQ.M65›570  LIST 0›580  .INCLUDE #D1:CASSETTE.M65›590  LIST 0›600  .INCLUDE #D1:PRINTER.M65›610  LIST 0›620  .INCLUDE #D1:ROMTEST.M65›630  CHECK 0›640  LIST 0›650  .END›660 ;›670 ; The XL/XE Operating System›680 ;  Copyright Atari Inc.›690 ;›700 ; Disassembly by John Picken›710 ; last rev. 14 Mar 96›720 ;›730 ; These files assemble an›740 ; exact copy of the XL/XE OS›750 ; under MAC/65 (disk or cart)›760 ;›770 ; Most non-local labels are›780 ; from Mapping the Atari.›790 ; Labels in many areas such›800 ; as SIO are those found in›810 ; the 800 source and those in›820 ; floating point are from the›830 ; Atari BASIC Source Book.›840 ; Some were simply assigned,›850 ; as disassembly was carried›860 ; without access to other›870 ; references.›880 ;›890 ; Line numbers reflect actual›900 ; decimal addresses, eg.›910 ;›920 ;  49152 L49152  *= $C000›930 ;    ..    ..      ..›940 ;    ..    ..      ..›950 ;  58829 ?58839  LDA #$FF›960 ;  58831 L59831  JSR L60321›970 ;›980 ; This system makes re-assembly›990 ; and de-bugging considerably›1000 ; simpler.›1010 ;›1020 ; Macros are used to force›1030 ; MAC/65 to use absolute›1040 ; addressing mode on page zero›1050 ; to match original code. I›1060 ; suspect these occurrences›1070 ; were the result of use of›1080 ; a cross-assembler that wasn't›1090 ; smart enough to use zero page›1100 ; mode where applicable.›1110 ;›1120 ; Other macros are used solely›1130 ; to check assembly addresses›1140 ; and for assembly listing›1150 ; control. See MACROS.LST for›1160 ; explanation.›