Commodore 64 ROM Addresses.
; Commodore 64 ROM Memory Map
; V1.2 1 Sep 1994
;
; Data types in headers (for reassembler):
;
; DATA Misc data
; TEXT String terminated with 00
; WORD Vectors in LO/HI byte pairs
; CHIP I/O Area
; EMPTY ROM containing FF's or AA's
;
;
; BASIC interpreter ROM ($A000 - $BFFF)
;
a000 40960 - Restart Vectors WORD
a00c 40972 stmdsp BASIC Command Vectors WORD
a052 41042 fundsp BASIC Function Vectors WORD
a080 41088 optab BASIC Operator Vectors WORD
a09e 41118 reslst BASIC Command Keyword Table DATA
a129 41257 msclst BASIC Misc. Keyword Table DATA
a140 41280 oplist BASIC Operator Keyword Table DATA
a14d 41293 funlst BASIC Function Keyword Table DATA
a19e 41374 errtab Error Message Table DATA
a328 41768 errptr Error Message Pointers WORD
a364 41828 okk Misc. Messages TEXT
a38a 41866 fndfor Find FOR/GOSUB Entry on Stack
a3b8 41912 bltu Open Space in Memory
a3fb 41979 getstk Check Stack Depth
a408 41992 reason Check Memory Overlap
a435 42037 omerr Output ?OUT OF MEMORY Error
a437 42039 error Error Routine
a469 42089 errfin Break Entry
a474 42100 ready Restart BASIC
a480 42112 main Input & Identify BASIC Line
a49c 42140 main1 Get Line Number & Tokenise Text
a4a2 42146 inslin Insert BASIC Text
a533 42291 linkprg Rechain Lines
a560 42336 inlin Input Line Into Buffer
a579 42361 crunch Tokenise Input Buffer
a613 42515 fndlin Search for Line Number
a642 42562 scrtch Perform [new]
a65e 42590 clear Perform [clr]
a68e 42638 stxpt Reset TXTPTR
a69c 42652 list Perform [list]
a717 42775 qplop Handle LIST Character
a742 42818 for Perform [for]
a7ae 42926 newstt BASIC Warm Start
a7c4 42948 ckeol Check End of Program
a7e1 42977 gone Prepare to execute statement
a7ed 42989 gone3 Perform BASIC Keyword
a81d 43037 restor Perform [restore]
a82c 43052 stop Perform [stop], [end], break
a857 43095 cont Perform [cont]
a871 43121 run Perform [run]
a883 43139 gosub Perform [gosub]
a8a0 43168 goto Perform [goto]
a8d2 43218 return Perform [return]
a8f8 43256 data Perform [data]
a906 43270 datan Search for Next Statement / Line
a928 43304 if Perform [if]
a93b 43323 rem Perform [rem]
a94b 43339 ongoto Perform [on]
a96b 43371 linget Fetch linnum From BASIC
a9a5 43429 let Perform [let]
a9c4 43460 putint Assign Integer
a9d6 43478 ptflpt Assign Floating Point
a9d9 43481 putstr Assign String
a9e3 43491 puttim Assign TI$
aa2c 43564 getspt Add Digit to FAC#1
aa80 43648 printn Perform [print]#
aa86 43654 cmd Perform [cmd]
aa9a 43674 strdon Print String From Memory
aaa0 43680 print Perform [print]
aab8 43704 varop Output Variable
aad7 43735 crdo Output CR/LF
aae8 43752 comprt Handle comma, TAB(, SPC(
ab1e 43806 strout Output String
ab3b 43835 outspc Output Format Character
ab4d 43853 doagin Handle Bad Data
ab7b 43899 get Perform [get]
aba5 43941 inputn Perform [input#]
abbf 43967 input Perform [input]
abea 44010 bufful Read Input Buffer
abf9 44025 qinlin Do Input Prompt
ac06 44038 read Perform [read]
ac35 44085 rdget General Purpose Read Routine
acfc 44284 exint Input Error Messages TEXT
ad1e 44318 next Perform [next]
ad61 44385 donext Check Valid Loop
ad8a 44426 frmnum Confirm Result
ad9e 44446 frmevl Evaluate Expression in Text
ae83 44675 eval Evaluate Single Term
aea8 44712 pival Constant - pi DATA
aead 44717 qdot Continue Expression
aef1 44785 parchk Expression in Brackets
aef7 44791 chkcls Confirm Character
aef7 44791 - -test ')'-
aefa 44794 - -test '('-
aefd 44797 - -test comma-
af08 44808 synerr Output ?SYNTAX Error
af0d 44813 domin Set up NOT Function
af14 44820 rsvvar Identify Reserved Variable
af28 44840 isvar Search for Variable
af48 44872 tisasc Convert TI to ASCII String
afa7 44967 isfun Identify Function Type
afb1 44977 strfun Evaluate String Function
afd1 45009 numfun Evaluate Numeric Function
afe6 45030 orop Perform [or], [and]
b016 45078 dorel Perform <, =, >
b01b 45083 numrel Numeric Comparison
b02e 45102 strrel String Comparison
b07e 45182 dim Perform [dim]
b08b 45195 ptrget Identify Variable
b0e7 45287 ordvar Locate Ordinary Variable
b11d 45341 notfns Create New Variable
b128 45352 notevl Create Variable
b194 45460 aryget Allocate Array Pointer Space
b1a5 45477 n32768 Constant 32768 in Flpt DATA
b1aa 45482 facinx FAC#1 to Integer in (AC/YR)
b1b2 45490 intidx Evaluate Text for Integer
b1bf 45503 ayint FAC#1 to Positive Integer
b1d1 45521 isary Get Array Parameters
b218 45592 fndary Find Array
b245 45637 bserr ?BAD SUBSCRIPT/?ILLEGAL QUANTITY
b261 45665 notfdd Create Array
b30e 45838 inlpn2 Locate Element in Array
b34c 45900 umult Number of Bytes in Subscript
b37d 45949 fre Perform [fre]
b391 45969 givayf Convert Integer in (AC/YR) to Flpt
b39e 45982 pos Perform [pos]
b3a6 45990 errdir Confirm Program Mode
b3e1 46049 getfnm Check Syntax of FN
b3f4 46068 fndoer Perform [fn]
b465 46181 strd Perform [str$]
b487 46215 strlit Set Up String
b4d5 46293 putnw1 Save String Descriptor
b4f4 46324 getspa Allocate Space for String
b526 46374 garbag Garbage Collection
b5bd 46525 dvars Search for Next String
b606 46598 grbpas Collect a String
b63d 46653 cat Concatenate Two Strings
b67a 46714 movins Store String in High RAM
b6a3 46755 frestr Perform String Housekeeping
b6db 46811 frefac Clean Descriptor Stack
b6ec 46828 chrd Perform [chr$]
b700 46848 leftd Perform [left$]
b72c 46892 rightd Perform [right$]
b737 46903 midd Perform [mid$]
b761 46945 pream Pull sTring Parameters
b77c 46972 len Perform [len]
b782 46978 len1 Exit String Mode
b78b 46987 asc Perform [asc]
b79b 47003 gtbytc Evaluate Text to 1 Byte in XR
b7ad 47021 val Perform [val]
b7b5 47029 strval Convert ASCII String to Flpt
b7eb 47083 getnum Get parameters for POKE/WAIT
b7f7 47095 getadr Convert FAC#1 to Integer in LINNUM
b80d 47117 peek Perform [peek]
b824 47140 poke Perform [poke]
b82d 47149 wait Perform [wait]
b849 47177 faddh Add 0.5 to FAC#1
b850 47184 fsub Perform Subtraction
b862 47202 fadd5 Normalise Addition
b867 47207 fadd Perform Addition
b947 47431 negfac 2's Complement FAC#1
b97e 47486 overr Output ?OVERFLOW Error
b983 47491 mulshf Multiply by Zero Byte
b9bc 47548 fone Table of Flpt Constants DATA
b9ea 47594 log Perform [log]
ba28 47656 fmult Perform Multiply
ba59 47705 mulply Multiply by a Byte
ba8c 47756 conupk Load FAC#2 From Memory
bab7 47799 muldiv Test Both Accumulators
bad4 47828 mldvex Overflow / Underflow
bae2 47842 mul10 Multiply FAC#1 by 10
baf9 47865 tenc Constant 10 in Flpt DATA
bafe 47870 div10 Divide FAC#1 by 10
bb07 47879 fdiv Divide FAC#2 by Flpt at (AC/YR)
bb0f 47887 fdivt Divide FAC#2 by FAC#1
bba2 48034 movfm Load FAC#1 From Memory
bbc7 48071 mov2f Store FAC#1 in Memory
bbfc 48124 movfa Copy FAC#2 into FAC#1
bc0c 48140 movaf Copy FAC#1 into FAC#2
bc1b 48155 round Round FAC#1
bc2b 48171 sign Check Sign of FAC#1
bc39 48185 sgn Perform [sgn]
bc58 48216 abs Perform [abs]
bc5b 48219 fcomp Compare FAC#1 With Memory
bc9b 48283 qint Convert FAC#1 to Integer
bccc 48332 int Perform [int]
bcf3 48371 fin Convert ASCII String to a Number in FAC#1
bdb3 48563 n0999 String Conversion Constants DATA
bdc2 48578 inprt Output 'IN' and Line Number
bddd 48605 fout Convert FAC#1 to ASCII String
be68 48744 foutim Convert TI to String
bf11 48913 fhalf Table of Constants DATA
bf71 49009 sqr Perform [sqr]
bf7b 49019 fpwrt Perform power ($)
bfb4 49076 negop Negate FAC#1
bfbf 49087 logeb2 Table of Constants DATA
bfed 49133 exp Perform [exp]
;
;
; C64 Kernal ROM
;
e000 57344 (exp continues) EXP continued From BASIC ROM
e043 57411 polyx Series Evaluation
e08d 57485 rmulc Constants for RND DATA
e097 57495 rnd Perform [rnd]
e0f9 57593 bioerr Handle I/O Error in BASIC
e10c 57612 bchout Output Character
e112 57618 bchin Input Character
e118 57624 bckout Set Up For Output
e11e 57630 bckin Set Up For Input
e124 57636 bgetin Get One Character
e12a 57642 sys Perform [sys]
e156 57686 savet Perform [save]
e165 57701 verfyt Perform [verify / load]
e1be 57790 opent Perform [open]
e1c7 57799 closet Perform [close]
e1d4 57812 slpara Get Parameters For LOAD/SAVE
e200 57856 combyt Get Next One Byte Parameter
e206 57862 deflt Check Default Parameters
e20e 57870 cmmerr Check For Comma
e219 57881 ocpara Get Parameters For OPEN/CLOSE
e264 57956 cos Perform [cos]
e26b 57963 sin Perform [sin]
e2b4 58036 tan Perform [tan]
e2e0 58080 pi2 Table of Trig Constants DATA
;e2e0 1.570796327 pi/2
;e2e5 6.28318531 pi*2
;e2ea 0.25
;e2ef #05 (counter)
;e2f0 -14.3813907
;e2f5 42.0077971
;e2fa -76.7041703
;e2ff 81.6052237
;e304 -41.3417021
;e309 6.28318531
e30e 58126 atn Perform [atn]
e33e 58174 atncon Table of ATN Constants DATA
;e33e #0b (counter)
;e3ef -0.000684793912
;e344 0.00485094216
;e349 -0.161117018
;e34e 0.034209638
;e353 -0.0542791328
;e358 0.0724571965
;e35d -0.0898023954
;e362 0.110932413
;e367 -0.142839808
;e36c 0.19999912
;e371 -0.333333316
;e376 1.00
e37b 58235 bassft BASIC Warm Start [RUNSTOP-RESTORE]
e394 58260 init BASIC Cold Start
e3a2 58274 initat CHRGET For Zero-page
e3ba 58298 rndsed RND Seed For zero-page DATA
;e3b2 0.811635157
e3bf 58303 initcz Initialize BASIC RAM
e422 58402 initms Output Power-Up Message
e447 58439 bvtrs Table of BASIC Vectors (for 0300) WORD
e453 58451 initv Initialize Vectors
e45f 58463 words Power-Up Message DATA
e4ad 58541 - Patch for BASIC Call to CHKOUT
e4b7 58551 - Unused Bytes For Future Patches EMPTY
e4da 58586 - Reset Character Colour
e4e0 58592 - Pause After Finding Tape File
e4ec 58604 - RS-232 Timing Table -- PAL DATA
e500 58624 iobase Get I/O Address
e505 58629 screen Get Screen Size
e50a 58634 plot Put / Get Row And Column
e518 58648 cint1 Initialize I/O
e544 58692 - Clear Screen
e566 58726 - Home Cursor
e56c 58732 - Set Screen Pointers
e59a 58778 - Set I/O Defaults (Unused Entry)
e5a0 58784 - Set I/O Defaults
e5b4 58804 lp2 Get Character From Keyboard Buffer
e5ca 58826 - Input From Keyboard
e632 58930 - Input From Screen or Keyboard
e684 59012 - Quotes Test
e691 59025 - Set Up Screen Print
e6b6 59062 - Advance Cursor
e6ed 59117 - Retreat Cursor
e701 59137 - Back on to Previous Line
e716 59158 - Output to Screen
e72a 59178 - -unshifted characters-
e7d4 59348 - -shifted characters-
e87c 59516 - Go to Next Line
e891 59537 - Output
e8a1 59553 - Check Line Decrement
e8b3 59571 - Check Line Increment
e8cb 59595 - Set Colour Code
e8da 59610 - Colour Code Table
e8ea 59626 - Scroll Screen
e965 59749 - Open A Space On The Screen
e9c8 59848 - Move A Screen Line
e9e0 59872 - Syncronise Colour Transfer
e9f0 59888 - Set Start of Line
e9ff 59903 - Clear Screen Line
ea13 59923 - Print To Screen
ea24 59940 - Syncronise Colour Pointer
ea31 59953 - Main IRQ Entry Point
ea87 60039 scnkey Scan Keyboard
eadd 60125 - Process Key Image
eb79 60281 - Pointers to Keyboard decoding tables WORD
eb81 60289 - Keyboard 1 -- unshifted DATA
ebc2 60354 - Keyboard 2 -- Shifted DATA
ec03 60419 - Keyboard 3 -- Commodore DATA
ec44 60484 - Graphics/Text Control
ec78 60536 - Keyboard 4 -- Control DATA
ecb9 60601 - Video Chip Setup Table DATA
ece7 60647 - Shift-Run Equivalent
ecf0 60656 - Low Byte Screen Line Addresses DATA
ed09 60681 talk Send TALK Command on Serial Bus
ed0c 60684 listn Send LISTEN Command on Serial Bus
ed40 60736 - Send Data On Serial Bus
edad 60845 - Flag Errors
edad 60845 - Status #80 - device not present
edb0 60848 - Status #03 - write timeout
edb9 60857 second Send LISTEN Secondary Address
edbe 60862 - Clear ATN
edc7 60871 tksa Send TALK Secondary Address
edcc 60876 - Wait For Clock
eddd 60893 ciout Send Serial Deferred
edef 60911 untlk Send UNTALK / UNLISTEN
ee13 60947 acptr Receive From Serial Bus
ee85 61061 - Serial Clock On
ee8e 61070 - Serial Clock Off
ee97 61079 - Serial Output 1
eea0 61088 - Serial Output 0
eea9 61097 - Get Serial Data And Clock In
eeb3 61107 - Delay 1 ms
eebb 61115 - RS-232 Send
ef06 61190 - Send New RS-232 Byte
ef2e 61230 - 'No DSR' / 'No CTS' Error
ef39 61241 - Disable Timer
ef4a 61258 - Compute Bit Count
ef59 61273 - RS-232 Receive
ef7e 61310 - Set Up To Receive
ef90 61328 - Process RS-232 Byte
efe1 61409 - Submit to RS-232
f00d 61453 - No DSR (Data Set Ready) Error
f017 61463 - Send to RS-232 Buffer
f04d 61517 - Input From RS-232
f086 61574 - Get From RS-232
f0a4 61604 - Serial Bus Idle
f0bd 61629 - Table of Kernal I/O Messages DATA
f12b 61739 - Print Message if Direct
f12f 61743 - Print Message
f13e 61758 getin Get a byte
f157 61783 chrin Input a byte
f199 61849 - Get From Tape / Serial / RS-232
f1ca 61898 chrout Output One Character
f20e 61966 chkin Set Input Device
f250 62032 chkout Set Output Device
f291 62097 close Close File
f30f 62223 - Find File
f31f 62239 - Set File values
f32f 62255 clall Abort All Files
f333 62259 clrchn Restore Default I/O
f34a 62282 open Open File
f3d5 62421 - Send Secondary Address
f409 62473 - Open RS-232
f49e 62622 load Load RAM
f4b8 62648 - Load File From Serial Bus
f533 62771 - Load File From Tape
f5af 62927 - Print "SEARCHING"
f5c1 62913 - Print Filename
f5d2 62930 - Print "LOADING / VERIFYING"
f5dd 62941 save Save RAM
f5fa 62970 - Save to Serial Bus
f659 63065 - Save to Tape
f68f 63119 - Print "SAVING"
f69b 63131 udtim Bump Clock
f6dd 63197 rdtim Get Time
f6e4 63204 settim Set Time
f6ed 63213 stop Check STOP Key
f6fb 63227 - Output I/O Error Messages
f6fb 63227 - 'too many files'
f6fe 63230 - 'file open'
f701 63233 - 'file not open'
f704 63236 - 'file not found'
f707 63239 - 'device not present'
f70a 63242 - 'not input file'
f70d 63245 - 'not output file'
f710 63248 - 'missing filename'
f713 63251 - 'illegal device number'
f72d 63277 - Find Any Tape Header
f76a 63338 - Write Tape Header
f7d0 63440 - Get Buffer Address
f7d7 63447 - Set Buffer Stat / End Pointers
f7ea 63466 - Find Specific Tape Header
f80d 63501 - Bump Tape Pointer
f817 63511 - Print "PRESS PLAY ON TAPE"
f82e 63534 - Check Tape Status
f838 63544 - Print "PRESS RECORD..."
f841 63553 - Initiate Tape Read
f864 63588 - Initiate Tape Write
f875 63605 - Common Tape Code
f8d0 63696 - Check Tape Stop
f8e2 63714 - Set Read Timing
f92c 63788 - Read Tape Bits
fa60 64096 - Store Tape Characters
fb8e 64398 - Reset Tape Pointer
fb97 64407 - New Character Setup
fba6 64422 - Send Tone to Tape
fbc8 64456 - Write Data to Tape
fbcd 64461 - IRQ Entry Point
fc57 64599 - Write Tape Leader
fc93 64659 - Restore Normal IRQ
fcb8 64696 - Set IRQ Vector
fcca 64714 - Kill Tape Motor
fcd1 64721 - Check Read / Write Pointer
fcdb 64731 - Bump Read / Write Pointer
fce2 64738 - Power-Up RESET Entry
fd02 64770 - Check For 8-ROM
fd12 64786 - 8-ROM Mask '80CBM' DATA
fd15 64789 restor Restore Kernal Vectors (at 0314)
fd1a 64794 vector Change Vectors For User
fd30 64816 - Kernal Reset Vectors WORD
fd50 64848 ramtas Initialise System Constants
fd9b 64923 - IRQ Vectors For Tape I/O WORD
fda3 64931 ioinit Initialise I/O
fddd 64989 - Enable Timer
fdf9 65017 setnam Set Filename
fe00 65024 setlfs Set Logical File Parameters
fe07 65031 readst Get I/O Status Word
fe18 65048 setmsg Control OS Messages
fe21 65057 settmo Set IEEE Timeout
fe25 65061 memtop Read / Set Top of Memory
fe34 65076 membot Read / Set Bottom of Memory
fe43 65091 - NMI Transfer Entry
fe66 65126 - Warm Start Basic [BRK]
febc 65212 - Exit Interrupt
fec2 65218 - RS-232 Timing Table - NTSC DATA
fed6 65238 - NMI RS-232 In
ff07 65287 - NMI RS-232 Out
ff43 65347 - Fake IRQ Entry
ff48 65352 - IRQ Entry
ff5b 65371 cint Initialize screen editor
ff80 65408 - Kernal Version Number [03] DATA
;
; C64 Kernal Jump Table
;
ff81 jmp $ff5b cint Init Editor & Video Chips
ff84 jmp $fd23 ioinit Init I/O Devices, Ports & Timers
ff87 jmp $fd50 ramtas Init Ram & Buffers
ff8a jmp $fd15 restor Restore Vectors
ff8d jmp $fd1a vector Change Vectors For User
ff90 jmp $fe18 setmsg Control OS Messages
ff93 jmp $edb9 secnd Send SA After Listen
ff96 jmp $edc7 tksa Send SA After Talk
ff99 jmp $fe25 memtop Set/Read System RAM Top
ff9c jmp $fe34 membot Set/Read System RAM Bottom
ff9f jmp $ea87 scnkey Scan Keyboard
ffa2 jmp $fe21 settmo Set Timeout In IEEE
ffa5 jmp $ee13 acptr Handshake Serial Byte In
ffa8 jmp $eddd ciout Handshake Serial Byte Out
ffab jmp $edef untalk Command Serial Bus UNTALK
ffae jmp $edfe unlsn Command Serial Bus UNLISTEN
ffb1 jmp $ed0c listn Command Serial Bus LISTEN
ffb4 jmp $ed09 talk Command Serial Bus TALK
ffb7 jmp $fe07 readss Read I/O Status Word
ffba jmp $fe00 setlfs Set Logical File Parameters
ffbd jmp $fdf9 setnam Set Filename
ffc0 jmp ($031a) (iopen) Open Vector [f34a]
ffc3 jmp ($031c) (iclose) Close Vector [f291]
ffc6 jmp ($031e) (ichkin) Set Input [f20e]
ffc9 jmp ($0320) (ichkout) Set Output [f250]
ffcc jmp ($0322) (iclrch) Restore I/O Vector [f333]
ffcf jmp ($0324) (ichrin) Input Vector, chrin [f157]
ffd2 jmp ($0326) (ichrout) Output Vector, chrout [f1ca]
ffd5 jmp $f49e load Load RAM From Device
ffd8 jmp $f5dd save Save RAM To Device
ffdb jmp $f6e4 settim Set Real-Time Clock
ffde jmp $f6dd rdtim Read Real-Time Clock
ffe1 jmp ($0328) (istop) Test-Stop Vector [f6ed]
ffe4 jmp ($032a) (igetin) Get From Keyboad [f13e]
ffe7 jmp ($032c) (iclall) Close All Channels And Files [f32f]
ffea jmp $f69b udtim Increment Real-Time Clock
ffed jmp $e505 screen Return Screen Organization
fff0 jmp $e50a plot Read / Set Cursor X/Y Position
fff3 jmp $e500 iobase Return I/O Base Address
;fff6 Vectors
fff6 [5252] -
fff8 [5942] SYSTEM
;fffa Transfer Vectors
fffa [fe43] NMI
fffc [fce2] RESET
fffe [ff48] IRQ
Converted to a human readable format by the IIRG