UBI >> Contents 19 Copyright 2009 Texas Instruments All Rights Reserved www.msp430.ubi.pt Arithmetic and logic operations (9/42)  Subtraction operation (continued):  The code begins by loading the values in the registers to be subtracted, 0xABCD1234 into R5:R4 and 0x00001234 into R7:R6;  Next, the next operation is to subtract the two least significant words;  The result of the subtraction affects the carry bit (C), which must be taken into account during the subtraction of the two most significant words.
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