Hacktivate vs Opcodes

Crack codes. Break firewalls. Conquer the map. Hacktivate is the ultimate cybersecurity challenge: a world map of 240 missions where every puzzle is built on real cybersecurity techniques hackers use. From classic ciphers to covert steganography, you’ll sharpen your brain while infiltrating deeper into the network. No fluff. No filler. Just pure challenges. - 240 graded missions across the Americas, Europe, Asia, and more – unlock all the continents with a one-time purchase. - The Hacker’s Toolbox: hashing, encryption, XOR, ciphers, and beyond. - Real-world attack techniques through Unix terminals, web browsers, digital forensics, SQL injection, and more. - Global progression: unlock regions and learn different specialties each time. - Comprehensive tutorials and documentation teach you the skills you need to win. - Difficulty that scales: from rookies breaking their first code to cyber masterminds cracking the strongest firewalls. - Play on iPhone, iPad, and Mac with a single purchase – your progress is auto-synced. - Include 10 challenge hints for free, but you can buy more using in-app purchase. Every lock is a challenge. Every mission is a test. Every solution pulls you deeper into the system. The network is waiting, and your mission starts now! Terms of service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy policy: https://www.hacktivate.app/privacy Hacktivate for schools: https://www.hacktivate.app/schools

Opcodes – The Retro CPU Reference The definitive opcode reference for the legendary processors that launched the personal computer revolution. Whether you're a retrocomputing enthusiast, a student of computer history, writing code for classic hardware, or just a big old nerd - the Opcodes app gives you everything you need. Eighteen iconic processors covered: Intel 4004 · Intel 8008 · Intel 8080 · Intel 8085 · Intel 8088 · Zilog Z80 · Motorola 6800 · Intel 8085 · Motorola 6809 · MOS 6502 · Signetics 2650 · RCA 1802 - SC/MP · Motorola 68000 · Intel 8086 · WDC 65816 · Texas Instruments TMS9900 · INMOS Transputer · ARM2 For every opcode:  • Full description of what the instruction does. • Hex, octal, and decimal values. • Flags affected. • Addressing modes and cycle counts. • Assembly code examples - including loops, conditionals, and common patterns. More than just opcodes:  • CPU history and historical context. • IC pinout diagrams. • Notable systems that used each CPU, with memory maps and other background information. • Chip variants and successors. • A silly card game(!) • Simple assembler / disassembler for many CPUs. Built for exploration:  • Search for opcodes by name or category. • Sort by mnemonic, opcode byte, or category. • Filter by category, Quick Find with a colorful map. • Undocumented instructions clearly marked and optionally displayed. More than microprocessors:  • Information on key support chips: video, sound, memory and more. Cool design:  • Clean, readable layout optimised for quick reference. • Multiple colour themes. • Full "dark mode" support. Everything is included with absolutely no in-app purchase required. Recent additions: • Quiz game - test your CPU knowledge! • Share CPU cards - beautiful shareable images showing specs and history for any processor • External references - curated links to community resources for all 18 CPUs • "Opcodes display first" setting - choose whether selecting a CPU shows opcodes or info first • Chip-maker colour themes - Zilog, MOS Tech, and Motorola replace the old themes • Enhanced 6502 docs - JMP page boundary bug, BRK behaviour, and Read-Modify-Write quirks • Fixed Scratchpad hang when switching tabs