Pheenix: Routine at 68A1

68A1: Print Asterisk

Used by the routine at TransitionEffect.
Print_Asterisk	68A1	PUSH AF	Stash AF, BC, DE and HL on the stack.
	68A2	PUSH BC
	68A3	PUSH DE
	68A4	PUSH HL
	68A5	CALL ConvertAttributeToScreenBufferAddress	Call ConvertAttributeToScreenBufferAddress.
Point to an asterisk in the ZX Spectrum font UDG data.
	68A8	LD DE,$3D50	DE=CHARSET+50.
	68AB	LD B,$08	Set a line counter in B (08 lines in a UDG).
Print_Asterisk_Loop	68AD	LD A,(DE)	Copy the UDG data to the screen buffer.
	68AE	LD (HL),A	Copy the UDG data to the screen buffer.
	68AF	INC H	Move down one pixel line in the screen buffer.
	68B0	INC DE	Move to the next UDG graphic data byte.
	68B1	DJNZ Print_Asterisk_Loop	Decrease the line counter by one and loop back to Print_Asterisk_Loop until all 08 lines of the UDG character have been drawn.
	68B3	POP HL	Restore HL, DE, BC and AF from the stack.
	68B4	POP DE
	68B5	POP BC
	68B6	POP AF
	68B7	RET	Return.