Topic : The ATARI Compendium
Author : Scott Sanders / JAY Software
Version : 1.25 (20/6/2003)
Subject : Documentation
Nodes : 1117
Index Size : 32614
HCP-Version : 6
Compiled on : Atari
@charset : UTF-8
@lang : en
@default :
@help : %About
@options : +g -i -t4 +y +z
@width : 100
View Ref-FileSystem RAM / ExpansionLocation(s) SizeBYTE Occupies one byte (8 bits).
WORD Occupies one WORD (16 bits).
LONG Occupies one longword (32 bits).
OW Occupies the odd WORD of a LONG.
EW Occupies the even WORD of a LONG.
OB Occupies the odd BYTE of a WORD.
EB Occupies the even BYTE of the WORD.
MchnIf the box is shaded then address is available
for this computer.
▒ ▒ ▒ ▒ ▒ ▒
| | | | | '------- Falcon030
| | | | '--------- TT030
| | | '----------- MEGA STe
| | '------------- STe
| '--------------- MEGA ST
'----------------- STTypeROM Location is Read-Only Memory
RAM Location is Read-Write Memory
I/O Location is hardware-mapped
VME Location addresses VME address space
N/A Not applicable
RO Read-only location
WO Write-only location
RW Read-write location
RSVD Reserved
Unassigned Either not assigned or undocumented
Meaning (see Usage)
▒▒▒▒▒▒
0x000005B4 - BYTE ▒▒▒▒▒▒ RAM/ This area contains whatever remaining ST0x009FFFFF ▒▒▒▒▒▒ ROM compatible RAM is available Additional
▒▒▒▒▒▒ space at this location is utilized by the
▒▒▒▒▒▒ operating system Memory locations below
▒▒▒▒▒▒ 0x00E00000 on a machine other than the
▒▒▒▒▒▒ Mega STe or below 0x00A00000 on a Mega STe ▒▒▒▒▒▒ that are not part of this RAM may be
▒▒▒▒▒▒ utilized by hardware developers
▒▒▒▒▒▒
▒ ▒
0x00A00000 - BYTE ▒ ▒ VME/ On a Mega STe, this area is mapped to VME
0x00DEFFFF ▒ ▒ RAM A24:D16 address space, otherwise it may
▒ ▒ be mapped to additional ST compatible RAM
▒ ▒ or I/O space Falcon030 computers use
▒ ▒ this address space for RAM
▒ ▒
▒ ▒
0x00DF0000 - BYTE ▒ ▒ VME/ On a Mega STe, this area is mapped to VME
0x00DFFFFF ▒ ▒ RAM A16:D16 address space, otherwise it may
▒ ▒ be mapped to additional ST compatible RAM
▒ ▒ or I/O space Falcon030 computers use
▒ ▒ this address space for RAM
▒ ▒
▒▒▒
0x00E00000 - BYTE ▒▒▒ ROM Operating system ROM's as of TOS 1.06
0x00EFFFFF ▒▒▒
▒▒▒