Routines
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47972: Set Flashing Attribute
Used by the routine at FlashMenuOptions.
Sets bit 7 of the attribute of one line of text in a list of lines, and resets it for the other lines.
Input
A The number of the line
B Number of lines
HL Address of the attributes
Flash one line and steady the rest.
SetFlashingAttribute 47972 AND A Jump to SetFlashingAttribute_Steady if the line is not the first.
47973 JR NZ,SetFlashingAttribute_Steady
SetFlashingAttribute_Flash 47975 SET 7,(HL) Set bit 7 of the attribute.
47977 JR SetFlashingAttribute_Loop Jump to SetFlashingAttribute_Loop.
SetFlashingAttribute_Next 47979 DEC A Jump to SetFlashingAttribute_Flash if this is the line.
47980 JR Z,SetFlashingAttribute_Flash
SetFlashingAttribute_Steady 47982 RES 7,(HL) Reset bit 7 of the attribute.
SetFlashingAttribute_Loop 47984 INC HL Move on to the next line.
47985 DJNZ SetFlashingAttribute_Next Jump to SetFlashingAttribute_Next until all of the lines have been done.
47987 RET Return.
View the equivalent code in;
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