Routines
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B5CC: Print Scores
Used by the routine at GameInitialisation.
Prints the score of player 1, the score of player 2 or the high score on the screen as six digits. Each of the entry points sets the screen address and the score to print and joins the code at PrintScore.
Before
scores-before
After Score_1UP
scores-after
Sets up the 1UP score.
Score_1UP B5CC LD HL,$4021 Set the screen address of the 1UP score in HL.
B5CF LD DE,$9698 Point DE at the score of 1UP at 1UP_Score_1.
B5D2 JR PrintScore Jump to PrintScore to print the score.
This entry point is used by the routines at GameInitialisation and AddPointsToScore.
Sets up the 2UP score.
Score_2UP B5D4 LD HL,$4039 Set the screen address of the 2UP score in HL.
B5D7 LD DE,$969B Point DE at the score of 2UP at 2UP_Score_1.
B5DA JR PrintScore Jump to PrintScore to print the score.
This entry point is used by the routines at GameInitialisation and NewHighScore_Enter.
Sets up the HI score.
Score_HI B5DC LD HL,$402D Set the screen address of the high score in HL.
B5DF LD DE,$B304 Point DE at the top high score at Top_HighScore_1.
Prints the score.
PrintScore B5E2 LD B,$03 Set the number of bytes of the score in B to 03.
This entry point is used by the routines at PrintRoomsVisited and HallOfFame.
PrintScore_Loop B5E4 LD A,(DE) Fetch a pair of digits of the score.
B5E5 RRCA Move the upper digit into the lower four bits.
B5E6 RRCA
B5E7 RRCA
B5E8 RRCA
B5E9 AND %00001111 Keep only bits 0-3.
B5EB ADD A,$30 Convert the digit to ASCII.
B5ED CALL PrintScreen Print the upper digit.
This entry point is used by the routine at PrintRoomsVisited.
PrintScore_LowDigit B5F0 LD A,(DE) Fetch the pair of digits of the score again.
B5F1 AND %00001111 Keep only bits 0-3.
B5F3 ADD A,$30 Convert the digit to ASCII.
B5F5 CALL PrintScreen Print the lower digit.
B5F8 INC DE Move onto the next pair of digits of the score.
B5F9 DJNZ PrintScore_Loop Decrease the digit pair counter by one and loop back to PrintScore_Loop until all six digits have been printed.
B5FB RET Return.
View the equivalent code in;
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