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Routines |
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Used by the routine at GAME_OVER.
Called by GAME_OVER with HL the screen address and the attribute in A'. Under a hundred it prints the two digits a column in, through the whole of PRINT_BCD. At a hundred it prints three, but by jumping into that routine past the instructions that point FONT_BASE at the digits (FONT); GAME_OVER has just printed text, which leaves FONT_BASE at the text font's base, 384 bytes lower, where codes 0 and 1 are bytes of a building's graphics. So a game finished at 100% shows three meaningless characters where the figure should be. Measured: the build's quest session run to the moment after this call, with PERCENT holding 1 and 0 and FONT_BASE the text font's, left three characters on the screen that match no digit; the same call with FONT_BASE at the digits printed 100.
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| PRINT_PERCENTAGE | BF36 | LD DE,PERCENT | one byte of digits; is the hundreds byte zero? | |||||||
| BF39 | LD B,$01 | |||||||||
| BF3B | LD A,(DE) | |||||||||
| BF3C | AND A | |||||||||
| BF3D | JR Z,PRINT_PERCENTAGE_0 | |||||||||
| BF3F | INC B | a hundred: three digits from the hundreds' low one -- in whatever font was last used | ||||||||
| BF40 | JP PRINT_BCD_LOW | |||||||||
| PRINT_PERCENTAGE_0 | BF43 | INC L | under a hundred: a column in, and the tens and units | |||||||
| BF44 | INC DE | |||||||||
| BF45 | JP PRINT_BCD | |||||||||
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