How are ARMv7 assembly opcodes and operands stored in bytes?

Published: 17/10/2018
How are ARMv7 assembly opcodes and operands stored in bytes?
Source: REVERSEENGINEERING.STACKEXCHANGE.COM

I've been trying to analyze an ARM binary but cannot figure out how the operators and operands are stored in the bytes of a program. For example, by looking at the disassembled listing of an ARMv7 binary, I cannot deduce what the opcode for 'cmp' is from these three lines, nor do I understand how it's encoded or how it's operands are encoded: cmp r5, #0; 0x2d00 cmp r4, #0; 0x2c00 cmp r0, r2;

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