zhahai (04/08/83)
I have always thought that motorola missed a great opportunity with the 6809 instruction names. There are 5 registers which can be loaded with a general effective address, the stack/index pointers and the program counter. The index pointer loads are named LEAX, LEAY, LEAU, etc for Load Effective Address to x. For consistency the jump instruction would \naturally/ come out as: LEAP