C000 | 16K RAM |
8000 | 16K RAM |
4000 | 16K RAM |
0000 | 16K RAM |
|
X | = DON'T CARE |
1 | = LOW |
0 | = HIGH |
LORAM | = 0 |
HIRAM | = 0 |
GAME | = 1 |
EXROM | = X |
OR
LORAM | = 0 |
HIRAM | = 0 |
GAME | = X |
EXROM | = 0 |
|
This map gives access to all 64K bytes of RAM. The I/O devices
must be banked back into the processor's address space for any
I/O operation.
|
|
E000 | 8K KERNAL ROM |
D000 | 4K I/O |
C000 | 4K RAM (BUFFER) |
A000 | 8K BASIC ROM |
8000 | 8K ROM CARTRIDGE
(BASIC EXP) |
4000 | 16K RAM |
0000 | 16K RAM |
|
X | = DON'T CARE |
1 | = LOW |
0 | = HIGH |
LORAM | = 1 |
HIRAM | = 1 |
GAME | = 1 |
EXROM | = 0 |
|
This is the standard configuration for a BASIC system with a BASIC
expansion ROM. This map provides 32K bytes contiguous of user RAM
and up to 8K bytes of BASIC "enhancement."
|