- Untested, Good physical shape, as is. Please see all photos, thanks.Up for sale is a rare vintage Microchip PIC16C5X Software Tools floppy disk. This 5.25-inch disk includes the PICSIM Simulator (v3.00) and PICALC Cross Assembler (v3.03). Dated 1988, this disk represents an important piece of early embedded systems development history from Microchip Technology Inc. It's a must-have for collectors of vintage computing, Microchip memorabilia, or anyone interested in the foundational tools of PIC microcontroller programming. The disk is in good cosmetic condition for its age, as shown in the images. Untested due to lack of compatible hardware, sold as a collectible item.