TD was usually supplied in conjunction with the Turbo Assembler and the Turbo Profiler, a code profiler that reported on the time spent in each part of the program to assist program optimisation by finding bottlenecks. The books included with Borland Pascal had detailed descriptions of the Intel assembler language, including the number of clock cycles required by each instruction. Development and debugging could be carried out entirely within the IDE unless the advanced debugging facilities of Turbopower T-Debug, and later TD, were required.