MELabs PICBASIC

PBP is a BASIC programming language for Microchip's PIC microcontrollers.

It has evolved over the span of 15 years, making it the industry standard in its field. It has become a professional-level development tool for embedded programmers, though it retains the easy-to-learn syntax that makes it popular among experimenters and educators worldwide.
...

PBP is a mature BASIC compiler for Microchip's PIC microcontrollers. Its licensed user base of 10,000+ is composed mostly of engineers and companies. It is intended to be a professional development tool, though its painless syntax also makes it a favorite among hobbyists and institutions of learning.

PBP generates Assembly language that consists of hand-tuned macros and library routines. This laborious approach in development makes for extreme efficiency in handling operations with a variety of variable types. Each math and comparison operation is generated according to the specific variable types that are used as inputs and output. High-level commands are included as library routines that are reused to minimize code space consumption, and these routines are tuned based on the device's memory characteristics and selected oscillator frequency.
...

MicroCode Studio Plus 5.0 (compatible with PBP 3.0 or later)
The main editor provides full syntax highliMicroCode Studio Plus is a powerful, visual Integrated Development Environment (IDE) with In Circuit Debugging (ICD) capability designed specifically for PICBASIC PRO™ Compilerghting of your code with context sensitive keyword help and syntax hints. The code explorer allows you to automatically jump to include files, defines, constants, variables, aliases and modifiers, symbols and labels, that are contained within your source code. Full cut, copy, paste and undo is provided, together with search and replace features.
...

When installed PBP3 will operate in trial mode for 15 days, we recommend that you TRY PBP3 BEFORE you buy PBP3. Be sure that you are happy with the product and the facilities it offers

After purchasing your PBP3 license, the product may be activated by entering the activation key as prompted by the application, this process should be carried out whilst your host machine has access to the internet. Activation requires that the machine can contact the melabs activation service.
...