HexA8085: Intel 8085 Simulator

HexA8085 is a full-featured Intel 8085 microprocessor simulator for Android. Learn assembly language programming and understand CPU architecture right on your phone — no textbook, no desktop emulator required.
With a built-in assembler, step-through debugger, and live register, flag, and memory views, HexA8085 gives you the complete 8085 development experience in a clean, monospace terminal interface.
Features:
• Complete Intel 8085 instruction set simulation — all 8-bit and 16-bit operations, branching, stack, I/O, interrupts, and machine control instructions
• Built-in assembler — write mnemonics and assemble to hex opcodes instantly
• Step-by-step execution — run one instruction at a time and watch state update in real time
• Live register display — A, B, C, D, E, H, L, SP, PC with current hex values
• Flag viewer — S, Z, AC, P, CY flags with visual indicators
• Memory browser and editor — inspect and modify any address in the 64 KB address space
• Load hex files — load pre-assembled programs into simulated memory
• I/O simulation — IN and OUT instructions with port interaction
• Interrupt handling — support for RST and TRAP instructions
• Monospace terminal UI — clean, focused interface inspired by classic development environments
• Fully offline — no network requests, no accounts, no data collection
• Free and open source
Whether you are a student preparing for exams, a teacher demonstrating CPU concepts in the classroom, or a hobbyist revisiting classic microprocessor architecture, HexA8085 puts the 8085 in your pocket.