Table base address registers

VRAM memory map setting. More...

Collaboration diagram for Table base address registers:

Functions
void	vdp_set_image_table (vmemptr_t table)
	MSX Set VRAM address of the pattern name table.
void	vdp_set_pattern_table (vmemptr_t table)
	MSX Set VRAM address of the pattern generator table.
void	vdp_set_color_table (vmemptr_t table)
	MSX Set VRAM address of the color table.
void	vdp_set_sprite_pattern_table (vmemptr_t table)
	MSX Set VRAM address of the sprite pattern generator table.
void	vdp_set_sprite_attribute_table (vmemptr_t table)
	MSX Set VRAM address of the sprite attribute table.

Detailed Description

VRAM memory map setting.

Function Documentation

vdp_set_image_table()

void vdp_set_image_table

(

vmemptr_t

table

)

MSX Set VRAM address of the pattern name table.

Parameters

table

VRAM address of the pattern name table.

Note

Pattern name table is almost the same as what is called a frame buffer in modern computer systems.

Especially in the bitmap graphics mode (GRAPHIC 4 to 7), the pattern name table serves as a frame buffer for 2bpp, 4bpp, or 8bpp graphics images.

In any other screen mode, it serves as a frame buffer for tile pattern matrix.

vdp_set_pattern_table()

void vdp_set_pattern_table

(

vmemptr_t

table

)

MSX Set VRAM address of the pattern generator table.

Parameters

table

VRAM address of the pattern generator table.

Note

In bitmap graphic mode (GRAPHIC 4 to 7), this function need not be called.

vdp_set_color_table()

void vdp_set_color_table

(

vmemptr_t

table

)

MSX Set VRAM address of the color table.

Parameters

table

VRAM address of the color table.

Note

In bitmap graphic mode (GRAPHIC 4 to 7), this function need not be called.

In TEXT 1 mode, this function need not be called.

In TEXT 2 mode, this function is used to set the blink table.

vdp_set_sprite_pattern_table()

void vdp_set_sprite_pattern_table

(

vmemptr_t

table

)

MSX Set VRAM address of the sprite pattern generator table.

Parameters

table

VRAM address of the sprite pattern generator table.

Note

In text mode (TEXT 1 or TEXT 2), this function need not be called.

vdp_set_sprite_attribute_table()

void vdp_set_sprite_attribute_table

(

vmemptr_t

table

)

MSX Set VRAM address of the sprite attribute table.

Parameters

table

VRAM address of the sprite attribute table.

Note

In sprite mode 2, there is one more table called "sprite color table".

The sprite color table is (implicitlly) placed at SAT - 0x0200 ; where SAT is the base address of sprite attribute table.

In text mode (TEXT 1 or TEXT 2), this function need not be called.