參數(shù)資料
型號: μPD703008
廠商: NEC Corp.
英文描述: 16/32 Bit RISC Microcontrollers(16/32位RISC微控制器)
中文描述: 16/32位RISC微控制器(16/32位的RISC微控制器)
文件頁數(shù): 89/141頁
文件大?。?/td> 374K
代理商: ΜPD703008
77
CHAPTER 5 INSTRUCTION
Explanation
(1) Adds the 7-bit displacement, zero-extended to word length, to the element pointer to
generate a 32-bit address. Byte data is read from the generated address, sign-extended
to word length, and stored to reg2.
(2) Adds the 8-bit displacement, zero-extended to word length, to the element pointer to
generate a 32-bit address. Half-word data is read from this 32-bit address with bit 0 masked
to 0, sign-extended to word length, and stored to reg2.
(3) Adds the 8-bit displacement, zero-extended to word length, to the element pointer to
generate a 32-bit address. Word data is read from this 32-bit address with bits 0 and 1
masked to 0, and stored to reg2.
Caution
When the element pointer is added to the 8-bit displacement zero extended to word length, the
lower bits of the result may be masked to 0 depending on the type of data to be accessed (half
word, word).
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