C64

C64 Memory Map

0000 6510 On-chip Data Direction Register

0001 6510 On-chip 8-bit Input/Output Register

0002 Unused

0003-0004 Jump Vector: Convert FAC to Integer in (A/Y) ($B1AA)

0005-0006 Jump Vector: Convert Integer in (A/Y) to Floating point in (FAC); ($B391)

0007 Search Character/Temporary Integer during INT

0008 Flag: Scan for Quote at end of String

0007-0008 Temporary Integer during OR/AND

0009 Screen Column for last TAB

000A Flag: 0 = Load, 1 = Verify

000B Input Buffer Pointer/Number of Subscripts

000C Flag: Default Array dimension

000D Data type Flag: $00 = Numeric, $FF = String

000E Data type Flag: $00 = Floating point, $80 = Integer

000F Flag: DATA scan/List Quote/Garbage collection

0010 Flag: Subscript reference/User Function call

0011 Input Flag: $00 = INPUT, $40 = GET, $98 = READ

0012 Flag: TAN sign/Comparative result

0013 File number of current Input Device

0014-0015 Temporary: Integer value

0016 Pointer: Temporary String Stack

0017-0018 Last temporary String Address

0019-0021 Stack for temporary Strings

0022-0025 Utility Pointer Area

0022-0023 First Utility Pointer

0024-0025 Secong Utility Pointer

0026-002A Floating point product of Multiply and Divide

002B-002C Pointer: Start of BASIC Text Area ($0801)

002D-002E Pointer: Start of BASIC Variables

002F-0030 Pointer: Start of BASIC Arrays

0031-0032 Pointer: End of BASIC Arrays + 1

0033-0034 Pointer: Bottom of String space

0035-0036 Utility String Pointer

0037-0038 Pointer: Highest Address available to BASIC ($A000)

0039-003A Current BASIC Line number

003B-003C Previous BASIC Line number

003D-003E Pointer: BASIC Statement for CONT

003F-0040 Current DATA Line number

0041-0042 Pointer: Used by READ - current DATA Item Address

0043-0044 Pointer: Temporary storage of Pointer during INPUT Routine

0045-0046 Name of Variable being sought in Variable Table

0047-0048 Pointer: to value of (VARNAM) if Integer, to descriptor if String

0049-004A Pointer: Index Variable for FOR/NEXT loop

004B-004C Temporary storage for TXTPTR during READ, INPUT and GET

004D Mask used during FRMEVL

004E-0052 Temporary storage for FLPT value

0053 Length of String Variable during Garbege collection

0054-0056 Jump Vector used in Function Evaluation

0057-005B Temporary storage for FLPT value

005C-0060 Temporary storage for FLPT value

0061-0066 Main Floating point Accumulator

0061 FAC Exponent

0062-0065 FAC Mantissa

0066 FAC Sign

0067 Pointer: Series Evaluation Constant

0068 Bit Overflow Area during normalisation Routine

0069-006E Auxiliary Floating point Accumulator

0069 AFAC Exponent

006A-006D AFAC Mantissa

006E AFAC Sign

006F Sign of result of Arithmetic Evaluation

0070 FAC low-order rounding

0071-0072 Pointer: Used during CRUNCH/ASCII conversion

0073-008A Subroutine: Get next Byte of BASIC Text

0079 Entry to Get same Byte again

007A-007B Pointer: Current Byte of BASIC Text

008B-008F Floating RND Function Seed Value

0090 Kernal I/O Status Word ST

0091 Flag: $7F = STOP key

0092 Timing Constant for Tape

0093 Flag: 0 = Load, 1 = Verify

0094 Flag: Serial Bus - Output Character buffered

0095 Buffered Character for Serial Bus

0096 Cassette Sync. number

0097 Temporary storage of X Register during CHRIN

0097 Temporary storage of Y Register during RS232 fetch

0098 Number of Open Files/Index to File Table

0099 Default Input Device (0)

009A Default Output Device (3)

009B Parity of Byte Output to Tape

009C Flag: Byte received from Tape

009D Flag: $00 = Program mode: Suppress Error Messages, $40 = Kernal Error Messages only, $80 = Direct mode: Full Error Messages

009E Index to Cassette File name/Header ID for Tape write

009E Tape Error log pass 1

009F Tape Error log pass 2

00A0-00A2 Real-time jiffy Clock (Updated by IRQ Interrupt approx. every 1/60 of Second); Update Routine: UDTIMK ($F69B)

00A3 Bit Counter Tape Read or Write/Serial Bus EOI (End Of Input) Flag

00A4 Pulse Counter Tape Read or Write/Serial Bus shift Counter

00A5 Tape Synchronising count down

00A6 Pointer: Tape I/O buffer

00A7 RS232 temporary for received Bit/Tape temporary

00A8 RS232 Input Bit count/Tape temporary

00A9 RS232 Flag: Start Bit check/Tape temporary

00AA RS232 Input Byte Buffer/Tape temporary

00AB RS232 Input parity/Tape temporary

00AC-00AD Pointer: Tape Buffer/Screen scrolling

00AE-00AF Tape End Address/End of Program

00B0-00B1 Tape timing Constants

00B2-00B3 Pointer: Start Address of Tape Buffer ($033C)

00B4 RS232 Write bit count/Tape Read timing Flag

00B5 RS232 Next Bit to send/Tape Read - End of Tape

00B6 RS232 Output Byte Buffer/Tape Read Error Flag

00B7 Number of Characters in Filename

00B8 Current File - Logical File number

00B9 Current File - Secondary Address

00BA Current File - First Address (Device number)

00BB-00BC Pointer: Current File name Address

00BD RS232 Output Parity/Tape Byte to be Input or Output

00BE Tape Input/Output Block count

00BF Serial Word Buffer

00C0 Tape Motor Switch

00C1-00C2 Start Address for LOAD and Cassette Write

00C3-00C4 Pointer: Type 3 Tape LOAD and general use

00C5 Matrix value of last Key pressed; No Key = $40

00C6 Number of Characters in Keyboard Buffer queue

00C7 Flag: Reverse On/Off; On = $01, Off = $00

00C8 Pointer: End of Line for Input (Used to suppress trailing spaces)

00C9-00CA Cursor X/Y (Line/Column) position at start of Input

00CB Flag: Print shifted Characters

00CC Flag: Cursor blink; $00 = Enabled, $01 = Disabled

00CD Timer: Count down for Cursor blink toggle

00CE Character under Cursor while Cursor Inverted

00CF Flag: Cursor Status; $00 = Off, $01 = On

00D0 Flag: Input from Screen = $03, or Keyboard = $00

00D1-00D2 Pointer: Current Screen Line Address

00D3 Cursor Column on current Line, including Wrap-round Line, if any

00D4 Flag: Editor in Quote Mode; $00 = Not

00D5 Current logical Line length: 39 or 79

00D6 Current Screen Line number of Cursor

00D7 Screen value of current Input Character/Last Character Output

00D8 Count of number of inserts outstanding

00D9-00F2 Screen Line link Table/Editor temporaries. High Byte of Line Screen Memory Location

00F3-00F4 Pointer: Current Colour RAM Location

00F5-00F6 Vector: Current Keyboard decoding Table. ($EB81)

00F7-00F8 RS232 Input Buffer Pointer

00F9-00FA RS232 Output Buffer Pointer

00FB-00FE Free Zero Page space for User Programs

00FF BASIC temporary Data Area

00FF-010A Assembly Area for Floating point to ASCII conversion

0100-013E Tape Input Error log

0100-01FF 6510 Hardware Stack Area

013F-01FF BASIC Stack Area

0200-0258 BASIC Input Buffer (Input Line from Screen)

0259-0262 Kernal Table: Active logical File numbers

0263-026C Kernal Table: Active File First Addresses (Device numbers)

026D-0276 Kernal Table: Active File Secondary Addresses

0277-0280 Keyboard Buffer Queue (FIFO)

0281-0282 Pointer: Bottom of Memory for Operating System ($0800)

0283-0284 Pointer: Top of Memory for Operating System ($A000)

0285 Serial IEEE Bus timeout defeat Flag

0286 Current Character Colour code

0287 Background Colour under Cursor

0288 High Byte of Screen Memory Address ($04)

0289 Maximum number of Bytes in Keyboard Buffer ($0A)

028A Flag: Repeat keys; $00 = Cursors, INST/DEL & Space repeat, $40 no Keys repeat, $80 all Keys repeat ($00)

028B Repeat Key: Speed Counter ($04)

028C Repeat Key: First repeat delay Counter ($10)

028D Flag: Shift Keys: Bit 1 = Shift, Bit 2 = CBM, Bit 3 = CTRL; ($00 = None, $01 = Shift, etc.)

028E Last Shift Key used for debouncing

028F-0290 Vector: Routine to determine Keyboard table to use based on Shift Key Pattern ($EB48)

0291 Flag: Upper/Lower Case change: $00 = Disabled, $80 = Enabled ($00)

0292 Flag: Auto scroll down: $00 = Disabled ($00)

0293 RS232 Pseudo 6551 control Register Image

0294 RS232 Pseudo 6551 command Register Image

0295-0296 RS232 Non-standard Bits/Second

0297 RS232 Pseudo 6551 Status Register Image

0298 RS232 Number of Bits left to send

0299-029A RS232 Baud Rate; Full Bit time microseconds

029B RS232 Index to End of Input Buffer

029C RS232 Pointer: High Byte of Address of Input Buffer

029D RS232 Pointer: High Byte of Address of Output Buffer

029E RS232 Index to End of Output Buffer

029F-02A0 Temporary store for IRQ Vector during Tape operations

02A1 RS232 Enables

02A2 TOD sense during Tape I/O

02A3 Temporary storage during Tape READ

02A4 Temporary D1IRQ Indicator during Tape READ

02A5 Temporary for Line Index

02A6 Flag: TV Standard: $00 = NTSC, $01 = PAL

02A7-02FF Unused

02C0-02FE Sprite #11 Data Area. (SCREEN + $03F8 + SPR number)

0300-0301 Vector: Indirect entry to BASIC Error Message, (X) points to Message ($E38B)

0302-0303 Vector: Indirect entry to BASIC Input Line and Decode ($A483)

0304-0305 Vector: Indirect entry to BASIC Tokenise Routine ($A57C)

0306-0307 Vector: Indirect entry to BASIC LIST Routine ($A71A)

0308-0309 Vector: Indirect entry to BASIC Character dispatch Routine ($A7E4)

030A-030B Vector: Indirect entry to BASIC Token evaluation ($AE86)

030C Storage for 6510 Accumulator during SYS

030D Storage for 6510 X-Register during SYS

030E Storage for 6510 Y-Register during SYS

030F Storage for 6510 Status Register during SYS

0310 USR Function JMP Instruction ($4C)

0311-0312 USR Address ($LB,$MB)

0313 Unused

0314-0315 Vector: Hardware IRQ Interrupt Address ($EA31)

0316-0317 Vector: BRK Instruction Interrupt Address ($FE66)

0318-0319 Vector: Hardware NMI Interrupt Address ($FE47)

031A-031B Vector: Indirect entry to Kernal OPEN Routine ($F34A)

031C-031D Vector: Indirect entry to Kernal CLOSE Routine ($F291)

031E-031F Vector: Indirect entry to Kernal CHKIN Routine ($F20E)

0320-0321 Vector: Indirect entry to Kernal CHKOUT Routine ($F250)

0322-0323 Vector: Indirect entry to Kernal CLRCHN Routine ($F333)

0324-0325 Vector: Indirect entry to Kernal CHRIN Routine ($F157)

0326-0327 Vector: Indirect entry to Kernal CHROUT Routine ($F1CA)

0328-0329 Vector: Indirect entry to Kernal STOP Routine ($F6ED)

032A-032B Vector: Indirect entry to Kernal GETIN Routine ($F13E)

032C-032D Vector: Indirect entry to Kernal CLALL Routine ($F32F)

032E-032F User Defined Vector ($FE66)

0330-0331 Vector: Indirect entry to Kernal LOAD Routine ($F4A5)

0332-0333 Vector: Indirect entry to Kernal SAVE Routine ($F5ED)

0334-033B Unused

033C-03FB Tape I/O Buffer

0340-037E Sprite #13

0380-03BE Sprite #14

03C0-03FE Sprite #15

03FC-03FF Unused

0400-07E7 Default Screen Video Matrix

07E8-07F7 Unused

07F8-07FF Default Sprite Data Pointers

0800-9FFF Normal BASIC Program space

8000-9FFF Optional Cartridge ROM space

A000-BFFF BASIC ROM (Part) or 8 KB RAM

C000-CFFF 4 KB RAM

D000-DFFF Input/Output Devices and Colour RAM or 4 KB RAM or Character ROM

D000-D02E 6566 Video Interface Chip, VIC II

D400-D41C 6581 Sound Interface Device, SID

D500-D7FF SID Images

D800-DBE7 Colour RAM (Nybbles = 4 Bit RAM, LSB)

DBE8-DBFF Unused

DC00-DC0F 6526 Complex Interface Adaptor, CIA

DD00-DD0F 6526 Complex Interface Adaptor, CIA

E000-FFFF BASIC (Part)/Kernal ROM or 8 KB RAM

E000-E4FF BASIC ROM (Part) or RAM

E500-FFFF Kernal ROM or RAM

0000	6510 On-chip Data Direction Register
0001	6510 On-chip 8-bit Input/Output Register
0002	Unused
0003-0004	Jump Vector: Convert FAC to Integer in (A/Y) ($B1AA)
0005-0006	Jump Vector: Convert Integer in (A/Y) to Floating point in (FAC); ($B391)
0007	Search Character/Temporary Integer during INT
0008	Flag: Scan for Quote at end of String
0007-0008	Temporary Integer during OR/AND
0009	Screen Column for last TAB
000A	Flag: 0 = Load, 1 = Verify
000B	Input Buffer Pointer/Number of Subscripts
000C	Flag: Default Array dimension
000D	Data type Flag: $00 = Numeric, $FF = String
000E	Data type Flag: $00 = Floating point, $80 = Integer
000F	Flag: DATA scan/List Quote/Garbage collection
0010	Flag: Subscript reference/User Function call
0011	Input Flag: $00 = INPUT, $40 = GET, $98 = READ
0012	Flag: TAN sign/Comparative result
0013	File number of current Input Device
0014-0015	Temporary: Integer value
0016	Pointer: Temporary String Stack
0017-0018	Last temporary String Address
0019-0021	Stack for temporary Strings
0022-0025	Utility Pointer Area
0022-0023	First Utility Pointer
0024-0025	Secong Utility Pointer
0026-002A	Floating point product of Multiply and Divide
002B-002C	Pointer: Start of BASIC Text Area ($0801)
002D-002E	Pointer: Start of BASIC Variables
002F-0030	Pointer: Start of BASIC Arrays
0031-0032	Pointer: End of BASIC Arrays + 1
0033-0034	Pointer: Bottom of String space
0035-0036	Utility String Pointer
0037-0038	Pointer: Highest Address available to BASIC ($A000)
0039-003A	Current BASIC Line number
003B-003C	Previous BASIC Line number
003D-003E	Pointer: BASIC Statement for CONT
003F-0040	Current DATA Line number
0041-0042	Pointer: Used by READ - current DATA Item Address
0043-0044	Pointer: Temporary storage of Pointer during INPUT Routine
0045-0046	Name of Variable being sought in Variable Table
0047-0048	Pointer: to value of (VARNAM) if Integer, to descriptor if String
0049-004A	Pointer: Index Variable for FOR/NEXT loop
004B-004C	Temporary storage for TXTPTR during READ, INPUT and GET
004D	Mask used during FRMEVL
004E-0052	Temporary storage for FLPT value
0053	Length of String Variable during Garbege collection
0054-0056	Jump Vector used in Function Evaluation
0057-005B	Temporary storage for FLPT value
005C-0060	Temporary storage for FLPT value
0061-0066	Main Floating point Accumulator
0061	FAC Exponent
0062-0065	FAC Mantissa
0066	FAC Sign
0067	Pointer: Series Evaluation Constant
0068	Bit Overflow Area during normalisation Routine
0069-006E	Auxiliary Floating point Accumulator
0069	AFAC Exponent
006A-006D	AFAC Mantissa
006E	AFAC Sign
006F	Sign of result of Arithmetic Evaluation
0070	FAC low-order rounding
0071-0072	Pointer: Used during CRUNCH/ASCII conversion
0073-008A	Subroutine: Get next Byte of BASIC Text
0079	Entry to Get same Byte again
007A-007B	Pointer: Current Byte of BASIC Text
008B-008F	Floating RND Function Seed Value
0090	Kernal I/O Status Word ST
0091	Flag: $7F = STOP key
0092	Timing Constant for Tape
0093	Flag: 0 = Load, 1 = Verify
0094	Flag: Serial Bus - Output Character buffered
0095	Buffered Character for Serial Bus
0096	Cassette Sync. number
0097	Temporary storage of X Register during CHRIN
0097	Temporary storage of Y Register during RS232 fetch
0098	Number of Open Files/Index to File Table
0099	Default Input Device (0)
009A	Default Output Device (3)
009B	Parity of Byte Output to Tape
009C	Flag: Byte received from Tape
009D	Flag: $00 = Program mode: Suppress Error Messages, $40 = Kernal Error Messages only, $80 = Direct mode: Full Error Messages
009E	Index to Cassette File name/Header ID for Tape write
009E	Tape Error log pass 1
009F	Tape Error log pass 2
00A0-00A2	Real-time jiffy Clock (Updated by IRQ Interrupt approx. every 1/60 of Second); Update Routine: UDTIMK ($F69B)
00A3	Bit Counter Tape Read or Write/Serial Bus EOI (End Of Input) Flag
00A4	Pulse Counter Tape Read or Write/Serial Bus shift Counter
00A5	Tape Synchronising count down
00A6	Pointer: Tape I/O buffer
00A7	RS232 temporary for received Bit/Tape temporary
00A8	RS232 Input Bit count/Tape temporary
00A9	RS232 Flag: Start Bit check/Tape temporary
00AA	RS232 Input Byte Buffer/Tape temporary
00AB	RS232 Input parity/Tape temporary
00AC-00AD	Pointer: Tape Buffer/Screen scrolling
00AE-00AF	Tape End Address/End of Program
00B0-00B1	Tape timing Constants
00B2-00B3	Pointer: Start Address of Tape Buffer ($033C)
00B4	RS232 Write bit count/Tape Read timing Flag
00B5	RS232 Next Bit to send/Tape Read - End of Tape
00B6	RS232 Output Byte Buffer/Tape Read Error Flag
00B7	Number of Characters in Filename
00B8	Current File - Logical File number
00B9	Current File - Secondary Address
00BA	Current File - First Address (Device number)
00BB-00BC	Pointer: Current File name Address
00BD	RS232 Output Parity/Tape Byte to be Input or Output
00BE	Tape Input/Output Block count
00BF	Serial Word Buffer
00C0	Tape Motor Switch
00C1-00C2	Start Address for LOAD and Cassette Write
00C3-00C4	Pointer: Type 3 Tape LOAD and general use
00C5	Matrix value of last Key pressed; No Key = $40
00C6	Number of Characters in Keyboard Buffer queue
00C7	Flag: Reverse On/Off; On = $01, Off = $00
00C8	Pointer: End of Line for Input (Used to suppress trailing spaces)
00C9-00CA	Cursor X/Y (Line/Column) position at start of Input
00CB	Flag: Print shifted Characters
00CC	Flag: Cursor blink; $00 = Enabled, $01 = Disabled
00CD	Timer: Count down for Cursor blink toggle
00CE	Character under Cursor while Cursor Inverted
00CF	Flag: Cursor Status; $00 = Off, $01 = On
00D0	Flag: Input from Screen = $03, or Keyboard = $00
00D1-00D2	Pointer: Current Screen Line Address
00D3	Cursor Column on current Line, including Wrap-round Line, if any
00D4	Flag: Editor in Quote Mode; $00 = Not
00D5	Current logical Line length: 39 or 79
00D6	Current Screen Line number of Cursor
00D7	Screen value of current Input Character/Last Character Output
00D8	Count of number of inserts outstanding
00D9-00F2	Screen Line link Table/Editor temporaries. High Byte of Line Screen Memory Location
00F3-00F4	Pointer: Current Colour RAM Location
00F5-00F6	Vector: Current Keyboard decoding Table. ($EB81)
00F7-00F8	RS232 Input Buffer Pointer
00F9-00FA	RS232 Output Buffer Pointer
00FB-00FE	Free Zero Page space for User Programs
00FF	BASIC temporary Data Area
00FF-010A	Assembly Area for Floating point to ASCII conversion
0100-013E	Tape Input Error log
0100-01FF	6510 Hardware Stack Area
013F-01FF	BASIC Stack Area
0200-0258	BASIC Input Buffer (Input Line from Screen)
0259-0262	Kernal Table: Active logical File numbers
0263-026C	Kernal Table: Active File First Addresses (Device numbers)
026D-0276	Kernal Table: Active File Secondary Addresses
0277-0280	Keyboard Buffer Queue (FIFO)
0281-0282	Pointer: Bottom of Memory for Operating System ($0800)
0283-0284	Pointer: Top of Memory for Operating System ($A000)
0285	Serial IEEE Bus timeout defeat Flag
0286	Current Character Colour code
0287	Background Colour under Cursor
0288	High Byte of Screen Memory Address ($04)
0289	Maximum number of Bytes in Keyboard Buffer ($0A)
028A	Flag: Repeat keys; $00 = Cursors, INST/DEL & Space repeat, $40 no Keys repeat, $80 all Keys repeat ($00)
028B	Repeat Key: Speed Counter ($04)
028C	Repeat Key: First repeat delay Counter ($10)
028D	Flag: Shift Keys: Bit 1 = Shift, Bit 2 = CBM, Bit 3 = CTRL; ($00 = None, $01 = Shift, etc.)
028E	Last Shift Key used for debouncing
028F-0290	Vector: Routine to determine Keyboard table to use based on Shift Key Pattern ($EB48)
0291	Flag: Upper/Lower Case change: $00 = Disabled, $80 = Enabled ($00)
0292	Flag: Auto scroll down: $00 = Disabled ($00)
0293	RS232 Pseudo 6551 control Register Image
0294	RS232 Pseudo 6551 command Register Image
0295-0296	RS232 Non-standard Bits/Second
0297	RS232 Pseudo 6551 Status Register Image
0298	RS232 Number of Bits left to send
0299-029A	RS232 Baud Rate; Full Bit time microseconds
029B	RS232 Index to End of Input Buffer
029C	RS232 Pointer: High Byte of Address of Input Buffer
029D	RS232 Pointer: High Byte of Address of Output Buffer
029E	RS232 Index to End of Output Buffer
029F-02A0	Temporary store for IRQ Vector during Tape operations
02A1	RS232 Enables
02A2	TOD sense during Tape I/O
02A3	Temporary storage during Tape READ
02A4	Temporary D1IRQ Indicator during Tape READ
02A5	Temporary for Line Index
02A6	Flag: TV Standard: $00 = NTSC, $01 = PAL
02A7-02FF	Unused
02C0-02FE	Sprite #11 Data Area. (SCREEN + $03F8 + SPR number)
0300-0301	Vector: Indirect entry to BASIC Error Message, (X) points to Message ($E38B)
0302-0303	Vector: Indirect entry to BASIC Input Line and Decode ($A483)
0304-0305	Vector: Indirect entry to BASIC Tokenise Routine ($A57C)
0306-0307	Vector: Indirect entry to BASIC LIST Routine ($A71A)
0308-0309	Vector: Indirect entry to BASIC Character dispatch Routine ($A7E4)
030A-030B	Vector: Indirect entry to BASIC Token evaluation ($AE86)
030C	Storage for 6510 Accumulator during SYS
030D	Storage for 6510 X-Register during SYS
030E	Storage for 6510 Y-Register during SYS
030F	Storage for 6510 Status Register during SYS
0310	USR Function JMP Instruction ($4C)
0311-0312	USR Address ($LB,$MB)
0313	Unused
0314-0315	Vector: Hardware IRQ Interrupt Address ($EA31)
0316-0317	Vector: BRK Instruction Interrupt Address ($FE66)
0318-0319	Vector: Hardware NMI Interrupt Address ($FE47)
031A-031B	Vector: Indirect entry to Kernal OPEN Routine ($F34A)
031C-031D	Vector: Indirect entry to Kernal CLOSE Routine ($F291)
031E-031F	Vector: Indirect entry to Kernal CHKIN Routine ($F20E)
0320-0321	Vector: Indirect entry to Kernal CHKOUT Routine ($F250)
0322-0323	Vector: Indirect entry to Kernal CLRCHN Routine ($F333)
0324-0325	Vector: Indirect entry to Kernal CHRIN Routine ($F157)
0326-0327	Vector: Indirect entry to Kernal CHROUT Routine ($F1CA)
0328-0329	Vector: Indirect entry to Kernal STOP Routine ($F6ED)
032A-032B	Vector: Indirect entry to Kernal GETIN Routine ($F13E)
032C-032D	Vector: Indirect entry to Kernal CLALL Routine ($F32F)
032E-032F	User Defined Vector ($FE66)
0330-0331	Vector: Indirect entry to Kernal LOAD Routine ($F4A5)
0332-0333	Vector: Indirect entry to Kernal SAVE Routine ($F5ED)
0334-033B	Unused
033C-03FB	Tape I/O Buffer
0340-037E	Sprite #13
0380-03BE	Sprite #14
03C0-03FE	Sprite #15
03FC-03FF	Unused
0400-07E7	Default Screen Video Matrix
07E8-07F7	Unused
07F8-07FF	Default Sprite Data Pointers

0800-9FFF	Normal BASIC Program space
8000-9FFF	Optional Cartridge ROM space
A000-BFFF	BASIC ROM (Part) or 8 KB RAM
C000-CFFF	4 KB RAM
D000-DFFF	Input/Output Devices and Colour RAM or 4 KB RAM or Character ROM
D000-D02E	6566 Video Interface Chip, VIC II
D400-D41C	6581 Sound Interface Device, SID
D500-D7FF	SID Images
D800-DBE7	Colour RAM (Nybbles = 4 Bit RAM, LSB)
DBE8-DBFF	Unused
DC00-DC0F	6526 Complex Interface Adaptor, CIA
DD00-DD0F	6526 Complex Interface Adaptor, CIA
E000-FFFF	BASIC (Part)/Kernal ROM or 8 KB RAM
E000-E4FF	BASIC ROM (Part) or RAM
E500-FFFF	Kernal ROM or RAM