Gunfright: Routine at 49059

Draws the columns of a sprite which is flipped but not shifted. There is a piece of code for each of up to five columns, and the code for the width of the sprite is where the jump at SpriteJumpOpcode starts. Each piece takes the mask and the pixels for one byte from the sprite data on the stack, turns them round with the table, wipes the screen where the mask is and puts the pixels in. It works from right to left.

Draws the columns of a sprite which is flipped but not shifted. There is a piece of code for each of up to five columns, and the code for the width of the sprite is where the jump at SpriteJumpOpcode starts. Each piece takes the mask and the pixels for one byte from the sprite data on the stack, turns them round with the table, wipes the screen where the mask is and puts the pixels in. It works from right to left.
The jump at SpriteJumpOpcode starts here for five columns.
DrawFlippedAlignedColumns	49059	POP DE	Restore the mask into E and the pixels into D from the stack.
	49060	LD L,E	Turn the mask round and clear the screen bits under it.
	49061	CPL
	49062	OR (HL)
	49063	CPL
	49064	LD L,D	Turn the pixels round and add them.
	49065	OR (HL)	Turn the pixels round and add them.
	49066	LD (BC),A	Store the byte, move to the byte on the left and fetch it.
	49067	DEC BC
	49068	LD A,(BC)
The jump at SpriteJumpOpcode starts here for four columns.
	49069	POP DE	Restore the mask into E and the pixels into D from the stack.
	49070	LD L,E	Turn the mask round and clear the screen bits under it.
	49071	CPL
	49072	OR (HL)
	49073	CPL
	49074	LD L,D	Turn the pixels round and add them.
	49075	OR (HL)	Turn the pixels round and add them.
	49076	LD (BC),A	Store the byte, move to the byte on the left and fetch it.
	49077	DEC BC
	49078	LD A,(BC)
The jump at SpriteJumpOpcode starts here for three columns.
	49079	POP DE	Restore the mask into E and the pixels into D from the stack.
	49080	LD L,E	Turn the mask round and clear the screen bits under it.
	49081	CPL
	49082	OR (HL)
	49083	CPL
	49084	LD L,D	Turn the pixels round and add them.
	49085	OR (HL)	Turn the pixels round and add them.
	49086	LD (BC),A	Store the byte, move to the byte on the left and fetch it.
	49087	DEC BC
	49088	LD A,(BC)
The jump at SpriteJumpOpcode starts here for two columns.
	49089	POP DE	Restore the mask into E and the pixels into D from the stack.
	49090	LD L,E	Turn the mask round and clear the screen bits under it.
	49091	CPL
	49092	OR (HL)
	49093	CPL
	49094	LD L,D	Turn the pixels round and add them.
	49095	OR (HL)	Turn the pixels round and add them.
	49096	LD (BC),A	Store the byte, move to the byte on the left and fetch it.
	49097	DEC BC
	49098	LD A,(BC)
The jump at SpriteJumpOpcode starts here for one column.
	49099	POP DE	Restore the mask into E and the pixels into D from the stack.
	49100	LD L,E	Turn the mask round and clear the screen bits under it.
	49101	CPL
	49102	OR (HL)
	49103	CPL
	49104	LD L,D	Turn the pixels round and add them.
	49105	OR (HL)	Turn the pixels round and add them.
	49106	LD (BC),A	Store the byte.
Finish the row.
	49107	JP FinishSpriteRow	Jump to FinishSpriteRow.