All instructions marked by "*" are only alternative opcodes for existing instructions. Those alternative opcodes should not be used.

For some instructions that affect flags differently on 8080 and 8085, there are two flag status lines.

A guide to using the new range of retro-inspired 8080/Z80 based computers. ... Intel 8080 Opcodes. Opcode (oct) Opcode (hex) Instruction size flags function; 0: 0: NOP: 1 ...

A combined opcode table showing all Intel 8080 and 8085 opcodes together. The 8085 (1976) was a binary compatible successor to the 8080 (1974). The design was followed by the 8086 …

Here is a list of instructions and opcodes used by Intel, AMD, Cyrix and Nexgen. Gdb was used get all the info out of the processors. This page was made by Asbjørn Leth Vonsild ( …

Jan 26, 2014 · I'm looking for a simple list of 8080 mnemonics with a summary of what each one does, ordered by mnemonic. Annoyingly, I can't find one anywhere. They all seem to be by …

The OP field in the Nios II instruction word specifies the major class of an opcode as listed in the two tables below. Most values of OP are encodings for I-type instructions. One encoding, OP …

8080.txt for instruction encoding/bitfield details. c.s.s FAQ for architecture insights and undocumented info. Cycles are 8080; 8085 varies. rp=register pair B, D, H. rr=Z80 register …

Aug 28, 2019 · The 8080 opcode map By contrast, every 8080 opcode is a single byte, though some are followed by one or two bytes of immediate data, so a full opcode table is only 256 cells.

A website with (reverse) opcode tables for various CPUs. Work in progress. Inspired by Pastraiser's opcode tables and based on the GBDev Game Boy opcode table website.