Free 8051 IP Cores 
Oregano 8051 IP Core 
The 8051 IP Core was developed in cooperation with the Arbeitsgruppe CAD / TU-Wien. This processor core is binary compatible to the well known 8051 processor ...
	
		
		
		8-bit Core Still in Use 
The Intel 8051 (official designation for 8051 family is MCS-51) is a Harvard architecture, single chip microcontroller (µC) which was developed by Intel in 1980 for use ...
	
		
		
		... based on 8051 core. It is implicitly used by the compiler. Usually it is loaded from the library (Turbo51.l51) which is a binary concatenation of units (currently only system unit is included). 
There ...
	
		
		
		... the legendary ASM51. Unfortunately, It is rather surprising fact that this 8-bit architecture is still in use today. You can find 8051 soft core also in FPGA and ASIC designs. In other words, it is still ...
	
		
		
		... by Silicon Laboratories, Philips, and many others. 
MCS® 51 Microcontroller Family User's Manual 
The 8051 is the original member of the MCS® 51 family, and is the core for all MCS 51 devices. ...
	
		
		
		... statement  
Compiler internals  
Reentrant procedures  
Methods 
8051 
Overview  
Opcodes  
Instruction Set  
IP Cores  
OMF-51 Format 
Some links about 8051 microcontrollers and projects  ...
	
		
		
		... of clarity: he took the core of books like the Dragon, and expanded this core to a well appreaciable extent. It comes over and over again on more awkward concepts with detailed examples. This book presents ...