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UPD17015 Arkusz danych(PDF) 21 Page - NEC |
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UPD17015 Arkusz danych(HTML) 21 Page - NEC |
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21 / 120 page ![]() 21 µPD17015 Table 4-1 List of Data Memory Manipulation Instructions 4.3 DATA MEMORY ADDRESSING Fig. 4-3 shows how a data memory address is specified. A data memory address is specified with a bank, row address, and column address. A row address and column address are directly specified with a data memory manipulation instruction. Fig. 4-3 Data Memory Addressing b 2 Row address Column address b 1 b 0 b 3 b 2 b 1 b 0 Instruction operand Data memory address M 4.4 NOTES ON USING DATA MEMORY Upon power-on reset, the contents of the general-purpose data memory are undefined. Initialize the general-purpose data memory as required. Function Instruction Operation Addition ADD ADDC Subtraction SUB SUBC Logical AND OR XOR Comparison SKE SKGE SKLT SKNE Transfer MOV LD ST Decision SKT SKF |
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