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Spectrum Basic Memory Map

Spectrum Basic Memory Map

Table of Contents

The following table shows the memory map of the Spectrum as seen by BASIC.

Address 48K 128K
4000 Display File
5800 Display Attributes
5B00 Printer Buffer
5C00 System variables
5CB6
CHANS
Channel Information
PROG 0x80h
Basic Program
VARS Variables
0x80h
Command or program line being edited
NL
0x80h
WORKSP INPUT data
NL
Temporary workspace
STKBOT Calculator stack
STKEND
Spare
SP Machine stack
  Gosub stack
RAMTOP
0x3E
UDG User defined graphics
PRAMT