ASM Tools is a multifunction utility for z80 programmers. There are four main sections of built-in dynamic tools, each meant to make programming easier. The Conversions section will convert to and from any of hexadecimal (base 16), binary (base 2), and decimal (base 10). The Calculate section will find program size and a variety of execution time stats. The Command Reference contains information on a variety of z80 commands and ROM calls. The Select Commands section contains complete size and clock information for a variety of 1 and 2 byte math instructions, indirection, ports, and often-used rom calls. Doors CS v4.0 and up optimized.