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Routines |
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Message code 2. Steps the message pointer by a signed byte. Reached through the control-code table at PrintTable, dispatched by PrintMessage.
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| Message_StepByASignedByte | 29566 | LD E,(IX+1) | Jump to Message_StepByASignedByte_ApplyTheOffset if bit 7 of the message byte at offset 1 is clear. | |
| 29569 | LD D,0 | |||
| 29571 | BIT 7,E | |||
| 29573 | JR Z,Message_StepByASignedByte_ApplyTheOffset | |||
| 29575 | LD D,255 | The offset is negative, so the high byte is 255. | ||
| Message_StepByASignedByte_ApplyTheOffset | 29577 | ADD IX,DE | Step the message pointer by the signed byte. | |
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Codes 5, 10, 15 and 18 come straight here through the control-code table at PrintTable and do nothing.
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| Message_StepByASignedByte_FinishOrIgnoreTheCode | 29579 | XOR A | Finish this control code with zero. | |
| 29580 | RET | Return. | ||
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View the equivalent code in;
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