Knight Lore: Routine at D800

D800: Move BC up a row, and loop


sprite_next_row	D800	ADD A,$1E	the step, its operand patched by patch_sprite_rows
	D802	LD C,A	carried into B
	D803	LD A,B
	D804	ADC A,$00
	D806	LD B,A
	D807	EX AF,AF'	the next row, until the height runs out
	D808	DEC A
	D809	JP NZ,sprite_row
	D80C	LD SP,($5BA9)	the real stack pointer back
	D810	RET	the real stack pointer back