💾 C64-MEMPEEK

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║               COMMODORE 64 MEMORY INSPECTOR               ║
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MEMORY INSPECTION FOR THE COMMODORE 64

Part of the NullSec Retro Series - Security tools for vintage computers

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📟 ABOUT

C64-MEMPEEK is a memory inspection utility for the Commodore 64, written in BASIC. It allows you to:

• View any memory location in hexadecimal and ASCII
• Navigate the C64's memory map
• Examine ROM, RAM, I/O registers, and BASIC programs

Perfect for:

• Learning C64 architecture
• Debugging BASIC and ML programs
• Exploring the system internals
• Security research on vintage hardware

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🕹️ USAGE

Load and Run

LOAD "C64-MEMPEEK",8,1
RUN

Or type directly:

The program is small enough to type in manually from the listing.

Memory Map Reference

Address	Contents
$0000-$00FF	Zero Page (fast access)
$0100-$01FF	Processor Stack
$0200-$03FF	OS/BASIC Work Area
$0400-$07FF	Screen RAM (default)
$0800-$9FFF	BASIC Program Area
$A000-$BFFF	BASIC ROM
$C000-$CFFF	Free RAM
$D000-$DFFF	I/O Chips & Character ROM
$E000-$FFFF	KERNAL ROM

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🎯 INTERESTING LOCATIONS

PEEK(53280)      ; Border color
PEEK(53281)      ; Background color
PEEK(646)        ; Current text color
PEEK(197)        ; Current key pressed
PEEK(56320)      ; Joystick port 2
PEEK(56321)      ; Joystick port 1
PEEK(1024-2023)  ; Screen character codes

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📺 SCREENSHOT

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║   C64-MEMPEEK V1.0 - MEMORY VIEWER   ║
║     NULLSEC RETRO SERIES             ║
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ADDR  HEX                   ASCII
----  ---                   -----
01024 20 20 20 20 20 43 36  .....C6
01032 34 2D 4D 45 4D 50 45  4-MEMPE
01040 45 4B 20 20 20 20 20  EK.....

START ADDRESS (DEC)? _

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🔧 REQUIREMENTS

• Commodore 64 (or emulator: VICE, CCS64, Frodo)
• Datasette or disk drive for loading (optional)
• Works on C64, C64C, C128 (64 mode)

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📂 FILES

File	Description
c64-mempeek.bas	BASIC source listing
c64-mempeek.prg	Ready-to-run PRG file
c64-mempeek.d64	D64 disk image

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NULLSEC RETRO SERIES

Stay Retro. Stay Secure.