Commodore 128D - Page 379

APPENDIX H
MEMORY MAP
System Memory
Map
The Commodore 128 memory map is shown below.
COMMODORE 128 MODE
MEMORY MAP
COMMODORE 128 MODE
MEMORY MAP
FFFF
FFFA
FFDO
FF05
FFOO
C128
RAM
4000
NMI RST IRQ
CP/M RAM Code
Krnl RAM Code
MMU
Configuration Register
BASIC TEXT AREA
(Basic text begins
at $1C00 if bit-map
unallocated)
FFFF
FF4D
FF05
FFOO
FC80
FA80
E000
0000
C000
B000
8000
4000
C128
ROM
— Kernal Jump Table & -
Hardware Vectors
Kernal Interrupt
Dispatch Code
MMU Configuration
Registers
- ROM Reserved for
Foreign Lang. Versions
- Editor Tables
- Kernal ROM Code
- - - I/O Space
- Editor ROM Code- -
-Monitor ROM Code-
\HIGH
_/R0M
\ MID
' DOM
Basic ROM Code i
vLOW
!_ /R0M
373
APPENDIX H-Memory Map
4000
2000
1C00
1B00
1A00
1400
1300
1200
1108
1100
1000
0F00
0E00
0000
0C00
OBCO
0B00
0A00
0900
0800
0400
0380
033C
02FC
02A2
0200
0149
0110
0100
0090
0002
0000
C128
RAM
VIC BIT-MAP
Screen
VIC BIT-MAP
Color (Vm #2)
Reserved for
Applications
Reserved for
Applications
Reserved for
Applications
Basic
Absolute
Variables
Basic
DOS/VSP
Variables
CP/M Reset
Code
Function
Key
Buffer
Sprite
Definition
Area
RS-232
Output
Buffer
RS-232
Input
Buffer
(Disk Boot Page)
Cassette Buffer
Monitor & Kernal
Absolute
Variables
Basic
Run-Time
Stack
VIC
Text
Screen
(VM#1)
Basic RAM Code
_ Kernal Jables_
Indirects
Kernal RAM Code
Basic & Monitor
Input Buffer
._?y£te_m_sla£k__
Basic DOS Using
"f'buffIr
_Kerna[Z.R
Basic Z. P.
4000
C128
ROM