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Routines |
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Print "You have scored ".
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| Print_Scoring | 44355 | LD HL,36 | HL=Messaging_YouHaveScored. | |
| 44358 | CALL PrintCompressedString | Call PrintCompressedString. | ||
| 44361 | LD HL,(41223) | HL=*Score. | ||
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Evaluate the first byte to see if it needs printing at all.
So don't show "058%" - instead show "58%".
This particular check is for the first character "1" to see if the score is printing "100%".
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| 44364 | LD A,H | Take the first scoring byte and store it in A. | ||
| 44365 | AND %00001111 | Keep only bits 0-3 and jump to Scoring_SecondDigit if the result of this is zero. | ||
| 44367 | JR Z,Scoring_SecondDigit | |||
| 44369 | ADD A,48 | Convert the number to ASCII by adding 48 and call PrintCharacter. | ||
| 44371 | CALL PrintCharacter | |||
| Scoring_SecondDigit | 44374 | LD A,L | Load the second scoring byte into A. | |
| 44375 | AND %11110000 | Keep only bits 4-7 and jump to Scoring_PrintTens if the result is non-zero. | ||
| 44377 | JR NZ,Scoring_PrintTens | |||
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The "tens" digit is zero, so check the "hundreds" digit again to avoid printing "05%" - instead show only "5%".
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| 44379 | LD A,H | Load the first scoring byte into A again. | ||
| 44380 | AND A | Jump to Scoring_ThirdDigit if no "hundreds" digit was printed. | ||
| 44381 | JR Z,Scoring_ThirdDigit | |||
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A "hundreds" digit was printed, so force a "0" to be printed.
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| 44383 | XOR A | Load 0 into A for printing. | ||
| Scoring_PrintTens | 44384 | RRCA | Shift the bits four positions right. This moves the tens digit into the lower part of the byte for printing. | |
| 44385 | RRCA | |||
| 44386 | RRCA | |||
| 44387 | RRCA | |||
| 44388 | ADD A,48 | Convert the number to ASCII by adding 48 and call PrintCharacter. | ||
| 44390 | CALL PrintCharacter | |||
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Lastly, always print the "units".
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| Scoring_ThirdDigit | 44393 | LD A,L | Load the second scoring byte into A. | |
| 44394 | AND %00001111 | Keep only bits 0-3. | ||
| 44396 | ADD A,48 | Convert the number to ASCII by adding 48 and call PrintCharacter. | ||
| 44398 | CALL PrintCharacter | |||
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Print "%.".
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| 44401 | LD HL,37 | HL=Messaging_Percentage. | ||
| 44404 | CALL PrintCompressedStringAndNewline | Call PrintCompressedStringAndNewline. | ||
| 44407 | RET | Return. | ||
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