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https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/1199050/msp430fr6989-writing-a-code-in-ccs
我使用 sub.w 函数来查找 dst 和 src 之间的差异。 我的问题是如何将这些整数转换为其绝对值？ 并将它们全部添加到单独的寄存器(R7)中
我的代码：
loop_mad_diff: sub.w mean_1,samples(R6) add.w samples(R6),R7 incd.w R6 cmp.w #2*n, R6 jlo loop_mad_diff
忽略最后三行。
为什么不使用 C、这一点很重要？
但是、如果您坚持：
https://stackoverflow.com/questions/2278518/how-to-prove-that-the-c-statement-x-x1-and-x-1-yield-the-same-results?noredirect=1&lq=1
要获得绝对值、请对该值求反并加1、然后将其加至寄存器。
