Shift operators for 16x16 1bpp sprite patterns.

Collaboration diagram for Shift operators for 16x16 1bpp sprite patterns.:

Functions
void	im_shift_u_SP16x16 (uint8_t sft, const SP16x16 *src, SP16x16 *dst)
	MSX Shift an 16x16 pixel 1bpp sprite pattern upward.
void	im_shift_u_v_SP16x16 (uint8_t sft, const SP16x16 *src)
	MSX Shift an 16x16 pixel 1bpp sprite pattern upward.
void	im_shift_d_SP16x16 (uint8_t sft, const SP16x16 *src, SP16x16 *dst)
	MSX Shift an 16x16 pixel 1bpp sprite pattern downward.
void	im_shift_d_v_SP16x16 (uint8_t sft, const SP16x16 *src)
	MSX Shift an 16x16 pixel 1bpp sprite pattern downward.
void	im_shift_l_SP16x16 (uint8_t sft, const SP16x16 *src, SP16x16 *dst)
	MSX Shift an 16x16 pixel 1bpp sprite pattern to the left.
void	im_shift_l_v_SP16x16 (uint8_t sft, const SP16x16 *src)
	MSX Shift an 16x16 pixel 1bpp sprite pattern to the left.
void	im_shift_r_SP16x16 (uint8_t sft, const SP16x16 *src, SP16x16 *dst)
	MSX Shift an 16x16 pixel 1bpp sprite pattern to the right.
void	im_shift_r_v_SP16x16 (uint8_t sft, const SP16x16 *src)
	MSX Shift an 16x16 pixel 1bpp sprite pattern to the right.
void	im_rotate_u_SP16x16 (uint8_t sft, const SP16x16 *src, SP16x16 *dst)
	MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern upward.
void	im_rotate_u_v_SP16x16 (uint8_t sft, const SP16x16 *src)
	MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern upward.
void	im_rotate_d_SP16x16 (uint8_t sft, const SP16x16 *src, SP16x16 *dst)
	MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern downward.
void	im_rotate_d_v_SP16x16 (uint8_t sft, const SP16x16 *src)
	MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern downward.
void	im_rotate_l_SP16x16 (uint8_t sft, const SP16x16 *src, SP16x16 *dst)
	MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern to the left.
void	im_rotate_l_v_SP16x16 (uint8_t sft, const SP16x16 *src)
	MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern to the left.
void	im_rotate_r_SP16x16 (uint8_t sft, const SP16x16 *src, SP16x16 *dst)
	MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern to the right.
void	im_rotate_r_v_SP16x16 (uint8_t sft, const SP16x16 *src)
	MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern to the right.

Detailed Description

Shift / Rotate (Scroll) operators for 16x16 1bpp sprite patterns.

OPERATOR	ROM/RAM to RAM	ROM/RAM to VRAM
SHIFT UPWARD	im_shift_u_SP16x16()	im_shift_u_v_SP16x16()
SHIFT DOWNWARD	im_shift_d_SP16x16()	im_shift_d_v_SP16x16()
SHIFT LEFT	im_shift_l_SP16x16()	im_shift_l_v_SP16x16()
SHIFT RIGHT	im_shift_r_SP16x16()	im_shift_r_v_SP16x16()
ROTATE UPWARD	im_rotate_u_SP16x16()	im_rotate_u_v_SP16x16()
ROTATE DOWNWARD	im_rotate_d_SP16x16()	im_rotate_d_v_SP16x16()
ROTATE LEFT	im_rotate_l_SP16x16()	im_rotate_l_v_SP16x16()
ROTATE RIGHT	im_rotate_r_SP16x16()	im_rotate_r_v_SP16x16()

Function Documentation

im_shift_u_SP16x16()

void im_shift_u_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src,
		SP16x16 *	dst )

MSX Shift an 16x16 pixel 1bpp sprite pattern upward.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_shift_u_v_SP16x16()

void im_shift_u_v_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src )

MSX Shift an 16x16 pixel 1bpp sprite pattern upward.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().

im_shift_d_SP16x16()

void im_shift_d_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src,
		SP16x16 *	dst )

MSX Shift an 16x16 pixel 1bpp sprite pattern downward.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_shift_d_v_SP16x16()

void im_shift_d_v_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src )

MSX Shift an 16x16 pixel 1bpp sprite pattern downward.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().

im_shift_l_SP16x16()

void im_shift_l_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src,
		SP16x16 *	dst )

MSX Shift an 16x16 pixel 1bpp sprite pattern to the left.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_shift_l_v_SP16x16()

void im_shift_l_v_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src )

MSX Shift an 16x16 pixel 1bpp sprite pattern to the left.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().

im_shift_r_SP16x16()

void im_shift_r_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src,
		SP16x16 *	dst )

MSX Shift an 16x16 pixel 1bpp sprite pattern to the right.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_shift_r_v_SP16x16()

void im_shift_r_v_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src )

MSX Shift an 16x16 pixel 1bpp sprite pattern to the right.

Parameters

sft	Amount of shift in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().

im_rotate_u_SP16x16()

void im_rotate_u_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src,
		SP16x16 *	dst )

MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern upward.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_rotate_u_v_SP16x16()

void im_rotate_u_v_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src )

MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern upward.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().

im_rotate_d_SP16x16()

void im_rotate_d_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src,
		SP16x16 *	dst )

MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern downward.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_rotate_d_v_SP16x16()

void im_rotate_d_v_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src )

MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern downward.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().

im_rotate_l_SP16x16()

void im_rotate_l_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src,
		SP16x16 *	dst )

MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern to the left.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_rotate_l_v_SP16x16()

void im_rotate_l_v_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src )

MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern to the left.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().

im_rotate_r_SP16x16()

void im_rotate_r_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src,
		SP16x16 *	dst )

MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern to the right.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.
dst	Pointer to destination image.

im_rotate_r_v_SP16x16()

void im_rotate_r_v_SP16x16	(	uint8_t	sft,
		const SP16x16 *	src )

MSX Rotate (scroll) an 16x16 pixel 1bpp sprite pattern to the right.

Parameters

sft	Amount of rotation in pixels.
src	Pointer to source image.

Note

The destination VRAM address must be set in advance with vmem_set_write_address().