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Routines |
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| AddToScore | B09A | PUSH HL | Stash HL on the stack. | |||||
| B09B | LD HL,($A7C4) | Load *Score into HL. | ||||||
| B09E | ADD A,L | Add the points to the low byte. | ||||||
| B09F | DAA | Decimal adjust for BCD (Binary Coded Decimal). | ||||||
| B0A0 | LD L,A | Store the adjusted result. | ||||||
| B0A1 | JR NC,SaveScore | Jump to SaveScore if there was no carry from the addition. | ||||||
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If there was carry, increment the high byte.
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| B0A3 | INC H | Increment the high byte by one. | ||||||
| SaveScore | B0A4 | LD ($A7C4),HL | Write the updated score back to *Score. | |||||
| B0A7 | POP HL | Restore HL from the stack. | ||||||
| B0A8 | RET | Return. | ||||||
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