Disassembler - Z80

Let’s look at how a disassembler interprets the byte sequence: DD 36 05 3C

Many disassemblers compute length while formatting operands. z80 disassembler

The core is a large lookup table (often generated by a script from an instruction set database). Since Z80 has prefixes, the table is typically indexed by (prefix_state, opcode_byte) . Let’s look at how a disassembler interprets the

Z80 instructions vary from one to four bytes in length. If a disassembler starts parsing from an incorrect byte offset, the entire downstream assembly output will experience an instruction alignment shift, invalidating the output. 3. Extensive Opcode Prefixing Z80 instructions vary from one to four bytes in length

[Raw 8-bit Binary Data] │ ▼ ┌────────────────────────────────────────┐ │ Linear Sweep vs. Code-Flow Tracking │ └────────────────────────────────────────┘ │ ├──► Identifies Execution Path (CALL, JP, JR) ├──► Isolates Interleaved Inline Data (DB, DW) └──► Resolves Multi-byte Prefix Opcode Chains │ ▼ [Perfectly Reversible Z80 Assembly Output] 1. Distinguishing Code from Data