ARM CA51 Compiler, Node Locked, Professional Edition, Windows, 1 Licence
The is a compiler kit for the 8051 microcontroller family with node locked license available in DVD. It supports all 8051 derivatives including classic devices and IP cores from companies like Analog Devices, Atmel, Cypress Semiconductor, Dallas Semiconductor, Goal, Hynix, Infineon, Intel, NXP founded by Philips, OKI, Silicon Labs, SMSC, STMicroelectronics, Synopsis, TDK, Temic, Texas Instruments and Winbond. We should consider the CA51 compiler kit if we will work with a variety of 8051 microcontrollers, need to write code C and in already have a simulator or emulator.
The 8051 compiler, assembler, linker and debugger are limited to 2KB of object code and source code may be of any size.