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Routines |
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Print a three-byte BCD score to the banner.
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Sets up the 1UP score.
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| Score_1UP | 89BF | LD HL,$4021 | HL=4021 (screen buffer address). | |
| 89C2 | LD DE,$5E5F | DE=1UP_Score_1. | ||
| 89C5 | JR PrintScore | Jump to PrintScore. | ||
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Sets up the 2UP score.
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| Score_2UP | 89C7 | LD HL,$4039 | HL=4039 (screen buffer address). | |
| 89CA | LD DE,$5E62 | DE=2UP_Score_1. | ||
| 89CD | JR PrintScore | Jump to PrintScore. | ||
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Sets up the HI score.
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| Score_HI | 89CF | LD HL,$402D | HL=402D (screen buffer address). | |
| 89D2 | LD DE,$5E06 | DE=High_Score. | ||
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Prints the score.
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| PrintScore | 89D5 | LD B,$03 | Set a score byte counter in B for 03 loops. | |
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This entry point is used by the routine at HallOfFame.
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| PrintScore_Loop | 89D7 | LD A,(DE) | A=*DE. | |
| 89D8 | RRCA | A=A / 10. | ||
| 89D9 | RRCA | |||
| 89DA | RRCA | |||
| 89DB | RRCA | |||
| 89DC | AND %00001111 | Keep only bits 0-3. | ||
| 89DE | ADD A,$30 | A=A + 30 (convert to ASCII). | ||
| 89E0 | CALL PrintScreen | Call PrintScreen. | ||
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Print the lower digit of the score byte.
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| 89E3 | LD A,(DE) | A=*DE. | ||
| 89E4 | AND %00001111 | Keep only bits 0-3. | ||
| 89E6 | ADD A,$30 | A=A + 30 (convert to ASCII). | ||
| 89E8 | CALL PrintScreen | Call PrintScreen. | ||
| 89EB | INC DE | Increment DE by one. | ||
| 89EC | DJNZ PrintScore_Loop | Decrease the counter by one and jump back to PrintScore_Loop until it is zero. | ||
| 89EE | RET | Return. | ||
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