3 ms·
Its not the list of named instructions that are copyrighted. Its the ISA which describes how those instructions actually work which is.
by thereddaikon 4y ago
Its not the list of named instructions that are copyrighted. Its the ISA which describes how those instructions actually work which is.
- jecel 4y agoIntel actually bothered to copyright the mnemonics for the 8080 assembly language, so Zilog used the same binary instructions for its Z80 but different names at the assembly level. They had many more instructions, so having a different naming scheme (LD for a lot of stuff that were different names in the 8080) helped keep the complexity reasonable. http://popolony2k.com.br/xtras/programming/asm/nemesis-lonestar/8080-z80-instruction-set.html http://popolony2k.com.br/xtras/programming/asm/nemesis-lones...