Sorry Matt,

You are mistaken a little. There are two instructions in AVR microcontrollers:

1. To set any bit in port
SBI PORT,BIT

2. To clear any bit in port
CBI PORT,BIT

There are many advantages in AVR, for example
LD RD,X+ ;loading with postincrement
LD RD,-X ;loading with predecrement

The usage of any MCUs (80C320, AT90S8515 or MSP430F149) depends on many factors including the real knowledge of developer.

George