embly language history and syntax?

Same as machine code. Interrupts found in BIOS chip address locations. Mostly jump, load register, load from/to mem address, load double byte, exchange, interrupt commands, basic arithmetic and so on. CPU's have two or more registers, used to load bytes for temp store for arithmetic and exchange commands. Some commands are single, double, triple or quadruple singularly incremented memory locations. When you fire up a computer the first memory location read by the CPU can be programmed or started from 0. Usually several register clearing commands start the process followed by a simple sub operating system to load the big main program to follow.