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C Pointers, Memory Addresses & Dereferencing Simulator

Hardware memory strip tracer inspecting byte addresses (0x7fff...), pointer arithmetic scalar stride scaling based on sizeof(T), and double pointer dereferencing.

Master Lab Guide Table of Contents Open in Compiler Studio
COA • VISUALIZATIONAddressing Modes & Effective Address (EA) Visualizer
COA • CPU ARCHITECTUREOperand Fetch & Memory Dereference

Addressing Modes & Effective Address (EA) Visualizer

1. Instruction Opcode
LOAD R1, 8(R2)
Mode: INDEXED Addressing Mode
Base register plus index/offset value
2. Address Resolution Unit
DERIVATION FORMULA:
EA = [R2] + Displacement/Offset = 0x1004 + 0x0008 = 0x100C
Resolved EA: 0x100C
Memory Bus Accesses: 1 cycle(s)
3. Final Operand Fetched
0x7777 (MEM[0x100C])
Ideal for array and struct indexing (Array base address + index * element size).
CPU Internal Register FileWord-size: 16-bit
R10x0000General Purpose
R20x1004General Purpose
PC0x0200Program Counter
XR0x0008Index Register
RAM Physical Address SpaceWord Addressable
5200x9999Memory Word
40960x0042Memory Word
41000x2000Memory Word
41080x7777Memory Word
81920x5555Memory Word
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