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介绍外部存储器和ST10内部存储器地址传送的机器代码以及外部
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2009-05-23
手托初梦
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Direct Memory Access uses the ST10 MAC for address generation in external
memory-external memory transfers. This application note supplies the machine code for
external memory - ST10 internal memory transfers, and for external memory-external
memory transfers made by Direct Memory Access using the MAC. For reference, the ST10
long addressing mode is summarized.
The ST10 instruction set contains special MAC instructions and two new addressing modes
which supply the MAC with up to 2 new operands per instruction. The MAC contains a 16x16
multiplier, 40 bit accumulator a repeat unit and an address generator.
memory-external memory transfers. This application note supplies the machine code for
external memory - ST10 internal memory transfers, and for external memory-external
memory transfers made by Direct Memory Access using the MAC. For reference, the ST10
long addressing mode is summarized.
The ST10 instruction set contains special MAC instructions and two new addressing modes
which supply the MAC with up to 2 new operands per instruction. The MAC contains a 16x16
multiplier, 40 bit accumulator a repeat unit and an address generator.
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