CHAPTER 6 DETAILED RULES FOR EXECUTION INSTRUCTIONS
| Execution example : DAS |
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| Memory |
| FFFFH |
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| Memory |
| FFFFH | ||||
A | XX | 2F |
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| A | XX | 29 |
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T |
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| T |
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IX |
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| IX |
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SP |
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| SP |
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PC |
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| PC |
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EP |
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| Byte |
| 0000H |
| EP |
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| Byte |
| 0000H | |
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| H | I | IL1 | IL0 | N | Z | V | C |
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| H | I | IL1 | IL0 | N | Z | V | C |
PS |
| 1 0 1 1 0 0 0 0 | PS |
| 1 0 1 1 0 0 0 0 | ||||||||||||||
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| (Before execution) |
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| (After execution) | |||||||
Table 6.27-1 Decimal Adjustment Table (DAS)
Correction | |||
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| value | execution |
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0 | 0 | 00 | 0 |
1 | 1 | 66 | 1 |
0 | 1 | 06 | 0 |
1 | 0 | 60 | 1 |
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Table 6.27-2 Execution Example
Mnemonic | AL | C | H |
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MOV A, #70H | 70 | ⋅ | ⋅ |
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SUBC A, #25H | 4B | 0 | 1 |
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DAS | 45 | 0 | 1 |
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