Psion/EPOC software and resources. Homepage of ASM Assembler. ASM is an assembler for ARM based EPOC devices. It can save in the format used by the MC OPX.
The MC OPX allows assembled code to be loaded and executed from OPL; you cannot call the OS from assembled code, but it can be used to greatly speed up dataprocessing in OPL.
The WGFX OPX allows the pixels in a bitmap to be accessed directly from OPL or from assembled code.