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6919: Display Night Driver Text
Used by the routine at CreateWindow.
DisplayNightDriver 6919 LD A,($5E43) Return if Flag_DayNight is zero (i.e. it is "day").
691C AND A
691D RET Z
Else it is night so handle the interlude to display "Night Driver".
691E LD HL,$4070 HL=4070 (screen location).
6921 LD DE,$693C DE=NightDriver_Text.
6924 CALL PrintStringColour Call PrintStringColour.
Display the text for a short time.
6927 LD B,$04 B=04 (delay length).
6929 CALL Delay Call Delay.
Remove the messaging.
692C LD HL,$4070 HL=4070 (screen location).
692F PUSH HL Stash HL on the stack.
6930 CALL ScreenAddress Call ScreenAddress.
6933 LD A,$00 A=00.
6935 EX AF,AF' Switch to the shadow AF register.
6936 LD DE,$6AE5 DE=Blank_Text.
6939 JP PrintStringColour_0 Jump to PrintStringColour_0.
Messging data.
NightDriver_Text 693C DEFM $47 "NIGHT DRIVER" (47 is the attribute).
693D DEFM "NIGHT DRIVE","R"+$80
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