Pocket ARM — ARMv7 Simulator
Carry a complete ARM assembly development environment in your pocket.
Pocket ARM is a full ARMv7 UAL assembly simulator for iOS, designed for computer science students, embedded developers, and anyone who wants to understand how processors really work — one instruction at a time.
Learn ARM Assembly the Right Way
There's no better way to understand a processor than to watch it think. Pocket ARM lets you write ARM assembly, assemble it instantly, and step through execution instruction by instruction — watching registers change, flags flip, and memory update in real time.
A Professional Toolset in Your Hand
Full ARMv7 UAL assembler with label resolution and condition codes
All 16 general-purpose registers (R0–R15) with SP, LR, and PC clearly labelled
CPSR status register with live N, Z, C, V, I, F, and T flag display
Hex memory viewer with Text, Data, and Stack segment views
Breakpoints — tap any instruction in the disassembly to pause execution there
Step, Step N, Run, and Stop controls
Console output for SVC calls
Built for iPad and iPhone
On iPad, Pocket ARM presents a classic quad-pane layout — registers, source editor, disassembly, memory, and console all visible simultaneously, inspired by the legendary xspim MIPS simulator. On iPhone, the same power is one tab away.
Supported Instructions
MOV, ADD, SUB, MUL, AND, ORR, EOR, BIC, CMP, TST, LSL, LSR, ASR, LDR, STR, PUSH, POP, B, BL, BX, and the full set of ARM condition code suffixes — EQ, NE, LT, GT, LE, GE, and more.
Who Is It For?
Computer science and computer engineering students studying processor architecture
Embedded developers wanting a quick sandbox for ARM logic
Hobbyists and retro computing enthusiasts curious about how RISC processors work
Anyone who has ever wondered what happens inside a chip
