An embedded 16-bit microprocessor

Abstract

This paper presents low cost and high code density embedded 16 bit microprocessor. The instruction set is suitable for C compiler and has good code density. It has 7 general purpose resisters and 16-bit fixed length instruction set which has a short length offset and small immediate operand. A 16-bit offset and immediate operand could be extended by using extension register and extension flag. It's implemented with 4200 gates so that it can be substituted for an 8-bit microprocessor.