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HT48C10 データシート(PDF) 44 Page - Holtek Semiconductor Inc |
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HT48C10 データシート(HTML) 44 Page - Holtek Semiconductor Inc |
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44 / 59 page ![]() SET [m] Set data memory Description Each bit of the specified data memory is set to one. Operation [m] ← FFH Affected flag(s) TC2 TC1 TO PD OV Z AC C – – – –– ––– SET [m].i Set bit of data memory Description Bit “i” of the specified data memory is set to one. Operation [m].i ← 1 Affected flag(s) TC2 TC1 TO PD OV Z AC C – – – –– ––– SIZ [m] Skip if increment data memory is zero Description The contents of the specified data memory are incremented by one. If the result is zero, the following instruction, fetched during the current instruc- tion execution, is discarded and a dummy cycle is replaced to get the proper instruction (two cycles). Otherwise proceed with the next instruction (one cycle). Operation Skip if ([m]+1)=0, [m] ← ([m]+1) Affected flag(s) TC2 TC1 TO PD OV Z AC C – – – –– ––– SIZA [m] Increment data memory and place result in ACC, skip if zero Description The contents of the specified data memory are incremented by one. If the result is zero, the next instruction is skipped and the result is stored in the accumulator. The data memory remains unchanged. If the result is zero, the following instruction, fetched during the current instruction execution, is discarded and a dummy cycle is replaced to get the proper instruction (two cycles). Otherwise proceed with the next instruction (one cycle). Operation Skip if ([m]+1)=0, ACC ← ([m]+1) Affected flag(s) TC2 TC1 TO PD OV Z AC C – – – –– ––– HT48CXX/HT48RXX 44 25th May ’99 |
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