Chapter 2
CPU
Extended Calculation Function II - 19
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Each bit is set to "0" by hardware, when calculation is finished.
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Do not set several bits simultaneously.
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Do not read AUCTR.
(Do not access AUCTR by the bit manipulation instructions.)
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By writing the following C language, you can avoid generation of data load instructions and
bit manipulation instructions.
#define AUBCDSUB (c, a, b) asm(D0 = b, D1 = a) {\
"\tmov 0x40, (0x03F07)"; \
} (c = D0)
AUBCDSUB (result, in1, in2);
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