APPENDIX
■Sign of the Instruction List
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| Table |
Table | Sign of the Instruction List | |
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|
Notation |
| Meaning |
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dir |
| Direct address (8 bits) |
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off |
| Offset (8 bits) |
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ext |
| Extended address (16 bits) |
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#vct |
| Vector table number (3 bits) |
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#d8 |
| Immediate data (8 bits) |
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#d16 |
| Immediate data (16 bits) |
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|
dir:b |
| Bit direct address (8 bits: 3 bits) |
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rel |
| Relative branch address (8 bits) |
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@ |
| Register indirect (example: @A, @IX, @EP) |
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A |
| Accumulator |
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AH |
| Upper 8 bits of accumulator (8 bits) |
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AL |
| Lower 8 bits of accumulator (8 bits) |
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T |
| Temporary accumulator |
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TH |
| Upper 8 bits of temporary accumulator (8 bits) |
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TL |
| Lower 8 bits of temporary accumulator (8 bits) |
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IX |
| Index register (16 bits) |
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EP |
| Extra pointer (16 bits) |
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PC |
| Program counter (16 bits) |
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SP |
| Stack pointer (16 bits) |
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PS |
| Program status (16 bits) |
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dr |
| Accumulator or index register (16 bits) |
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CCR |
| Condition code register (8 bits) |
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RP |
| Register bank pointer (5 bits) |
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DP |
| Direct bank pointer (3 bits) |
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Ri |
| |
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X |
| X indicates immediate data. |
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(X) |
| The contents of X are to be accessed. |
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((X)) |
| The address indicated by the contents of X is to be accessed. |
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| instruction to be used.) |
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