PIC Micro Controller Languages

ASM
Many years ago everyone used assembly language because there was no alternative. A few years ago many people used assembly language because the alternatives were expensive. Now there are lots of alternatives, many of them free. Still, many people use assembly code because (a) inertia -- they've been using it for years, why change now ? (b) there are a few esoteric things that are cannot be done in any other language. ( writing native-code compilers, writing task switchers, squeezing code to minimum size, writing isochronous code )
Pascal-like
- JAL a Pascal like compiler produces .hex and MPASM .asm files (free) Now open source under GPL! See Getting started with JAL. See /techref/piclist/jal/jpwm.htm. Many people have written code in JAL. Much of that code is now available at the JAL libraries repository which also hosts the JAL wiki.
- PMP (Pic Micro Pascal) http://www.pmpcomp.fr is a free Pascal cross compiler for PIC processors. There is a new Pascal compiler for Pic: PMP ppater-club_internet- replies: PMP now supports PIC10, PIC12, PIC16 and PIC18, floating point library for PIC18. Enjoy!
- XPL0 An excellent open source byte code interpreted language that will run on the following processors: 6502, 8080, 6800, PDP-10, IBM-360, a homebrew machine, 65802, 680x0, PIC, SX28, and the 80x86 family used by the PC. GUI support and win32 versions are also available.
- mikroPascal " Have a look at this amazing new Pascal compiler for PIC MCUs: http://www.mikroelektronika.co.yu/english/product/compilers/compilers.htm
  " -- ZR z_ristic(at)yahoo.com
Basic
(XCSB, Basic Stamp, BS/4, Great Cow, etc.)
C/C++
There are quite a few different versions of C available for the PIC. Some of them are free. See language/cs.htm for details.
Forth
Java
Python
PICList post "Python for PICs" mentions the PYthon to ASsembler TRAnslator http://sourceforge.net/projects/pyastra/ for Microchip PIC16.
Scheme
PICBIT: A Scheme System for the PIC Microcontroller (apparently by Danny Dubé) http://www.python.org/~jeremy/weblog/031113a.html and http://lambda-the-ultimate.org/node/3694
Other
- http://www.blusoft.org.br Flow chart to 16F84 asm visual programming editor cached from a student at
- http://www.xcprod.com/titan/ZMECH plan to release a state machine CASE tool that will produce code which will run directly on the PIC
byte code interpreters
- XPL0 An excellent open source byte code interpreted language that will run on the following processors: 6502, 8080, 6800, PDP-10, IBM-360, a homebrew machine, 65802, 680x0, PIC, SX28, and the 80x86 family used by the PC. GUI support and win32 versions are also available.
- http://img.cmpnet.com/edtn/ccellar/e023pdf1.pdf a 16C56 interprets (and displays and edits) programs in a special assembly language. see ftp://ftp.circuitcellar.com/Circuit_Cellar/1998/Issue_93/picaro_UPDATED!.ZIP for source.
- http://professionals.com/~cmcmanis/robotics/stamp-decode.html (cached 20000505)
- NPCI Nano Pseudo C Interpreted by Byron A Jeff. incomplete. NPCI ReadMe