Routines
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6800: Routine at 6800
Used by the routines at GameInitialisation and 6E18.
6800 LD ($7819),A Write A to *7819.
6803 LD A,L L-=08.
6804 SUB $08
6806 LD L,A
6807 JR NC,$680D Jump to 680D if {} is higher.
6809 LD A,H H-=05.
680A SUB $05
680C LD H,A
680D LD ($7817),HL Write HL to *7817.
6810 LD HL,$0000 Write 0000 to *7814.
6813 LD ($7814),HL
6816 LD B,$20 B=20 (counter; screen columns).
6818 PUSH BC Stash the screen column counter on the stack.
6819 CALL ScrollPlayarea Call ScrollPlayarea.
681C CALL ScrollPlayarea Call ScrollPlayarea.
681F CALL DrawPlayarea Call DrawPlayarea.
6822 POP BC Restore the screen column counter from the stack.
6823 DJNZ $6818 Decrease the screen column counter by one and loop back to 6818 until counter is zero.
6825 RET Return.
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