Nintendo e-Reader Z80 API List

Last updated: 2004-05-16

"(?)" means the function has not been identified yet
"(n/a)" means the function does not exist

RST	Number	Name
0	0x00	ERAPI_FadeIn
0	0x01	ERAPI_FadeOut
0	0x02	ERAPI_FlashWhite
0	0x03	(?)
0	0x04	(?) blend_func_unk1
0	0x05	(?)
0	0x06	(?)
0	0x07	(?)
0	0x08	(?)
0	0x09	(?) _020264CC_check
0	0x0A	(?) _020264CC_free
0	0x0B	(n/a)
0	0x0C	(n/a)
0	0x0D	(n/a)
0	0x0E	(n/a)
0	0x0F	(n/a)
0	0x10	ERAPI_LoadBackgroundSystem
0	0x11	ERAPI_SetBackgroundOffset
0	0x12	ERAPI_SetBackgroundAutoScroll
0	0x13	ERAPI_SetBackgroundMirrorToggle
0	0x14	(?)
0	0x15	(?)
0	0x16	(?) write_000000FF_to_02029494_
0	0x17	(?)
0	0x18	(?)
0	0x19	ERAPI_SetBackgroundMode
0	0x1A	(?)
0	0x1B	(?)
0	0x1C	(?)
0	0x1D	(?)
0	0x1E	(?)
0	0x1F	(?)
0	0x20	ERAPI_LayerShow
0	0x21	ERAPI_LayerHide
0	0x22	(?)
0	0x23	(?)
0	0x24	(?)
0	0x25	(?)
0	0x26	(?)
0	0x27	(?)
0	0x28	(?)
0	0x29	(?)
0	0x2A	(?)
0	0x2B	(?)
0	0x2C	(?)
0	0x2D	ERAPI_LoadBackgroundCustom
0	0x2E	(?)
0	0x2F	(?)
0	0x30	ERAPI_CreateSpriteSystem
0	0x31	ERAPI_SpriteFree
0	0x32	ERAPI_SetSpritePos
0	0x33	(?) sprite_unk2
0	0x34	ERAPI_SpriteFrameNext
0	0x35	ERAPI_SpriteFramePrev
0	0x36	ERAPI_SetSpriteFrame
0	0x37	(?) sprite_unk3
0	0x38	(?) sprite_unk4
0	0x39	ERAPI_SetSpriteAutoMove
0	0x3A	(?) sprite_unk5
0	0x3B	(?) sprite_unk6
0	0x3C	ERAPI_SpriteAutoAnimate
0	0x3D	(?) sprite_unk7
0	0x3E	ERAPI_SpriteAutoRotateUntilAngle
0	0x3F	ERAPI_SpriteAutoRotateByAngle
0	0x40	ERAPI_SpriteAutoRotateByTime
0	0x41	(?) sprite_unk8
0	0x42	ERAPI_SetSpriteAutoMoveHorizontal
0	0x43	ERAPI_SetSpriteAutoMoveVertical
0	0x44	(?) sprite_unk9
0	0x45	ERAPI_SpriteDrawOnBackground
0	0x46	ERAPI_SpriteShow
0	0x47	ERAPI_SpriteHide
0	0x48	ERAPI_SpriteMirrorToggle
0	0x49	(?) sprite_unk10
0	0x4A	(?) sprite_unk11
0	0x4B	(?) sprite_unk12
0	0x4C	(?)
0	0x4D	ERAPI_SpriteCreate
0	0x4E	(?)
0	0x4F	(?) sprite_unk14
0	0x50	(?) sprite_unk15
0	0x51	(?) sprite_unk16
0	0x52	(?) sprite_unk17
0	0x53	(?) sprite_unk18
0	0x54	(?)
0	0x55	(?) sprite_unk20
0	0x56	(?)
0	0x57	ERAPI_SpriteMove
0	0x58	(?) sprite_unk22
0	0x59	(?) sprite_unk23
0	0x5A	(?) sprite_unk24
0	0x5B	ERAPI_SpriteAutoScaleUntilSize
0	0x5C	ERAPI_SpriteAutoScaleBySize
0	0x5D	ERAPI_SpriteAutoScaleWidthUntilSize
0	0x5E	ERAPI_SpriteAutoScaleHeightBySize
0	0x5F	(?)
0	0x60	(?)
0	0x61	(?)
0	0x62	(?)
0	0x63	(?)
0	0x64	(?)
0	0x65	(?) sprite_unk25
0	0x66	ERAPI_SetSpriteVisible
0	0x67	(?) sprite_unk26
0	0x68	(?) set_sprite_unk27
0	0x69	(?) get_sprite_unk27
0	0x6A	(?)
0	0x6B	(?)
0	0x6C	(?)
0	0x6D	(?)
0	0x6E	(?)
0	0x6F	(?)
0	0x70	(?)
0	0x71	(?)
0	0x72	(?)
0	0x73	(?)
0	0x74	(?)
0	0x75	(?)
0	0x76	(?)
0	0x77	(?)
0	0x78	(?)
0	0x79	(?)
0	0x7A	(?)
0	0x7B	(?)
0	0x7C	(?) _0202FD2C_unk12
0	0x7D	(?)
0	0x7E	ERAPI_SetBackgroundPalette
0	0x7F	(?)
0	0x80	ERAPI_SetSpritePalette
0	0x81	(?)
0	0x82	ERAPI_ClearPalette
0	0x83	(?) _0202FD2C_unk11
0	0x84	(?)
0	0x85	(?)
0	0x86	(?)
0	0x87	(?) _0202FD2C_unk8
0	0x88	(?) _0202FD2C_unk7
0	0x89	(?)
0	0x8A	(?) _0202FD2C_unk6
0	0x8B	(?) _0202FD2C_unk5
0	0x8C	(?)
0	0x8D	(?)
0	0x8E	(?)
0	0x8F	ERAPI_WindowHide
0	0x90	ERAPI_CreateRegion
0	0x91	ERAPI_SetRegionColor
0	0x92	ERAPI_ClearRegion
0	0x93	ERAPI_SetPixel
0	0x94	ERAPI_GetPixel
0	0x95	ERAPI_DrawLine
0	0x96	ERAPI_DrawRect
0	0x97	(?) _0202FD2C_unk4
0	0x98	ERAPI_SetTextColor
0	0x99	ERAPI_DrawText
0	0x9A	ERAPI_SetTextSize
0	0x9B	(?) RegionUnk7
0	0x9C	(?) _0202FD2C_unk3
0	0x9D	(?) _0202FD2C_unk2
0	0x9E	(?) _0202FD2C_unk1
0	0x9F	(?)
0	0xA0	(?)
0	0xA1	(?)
0	0xA2	(?) RegionUnk6
0	0xA3	(?)
0	0xA4	(?)
0	0xA5	(?)
0	0xA6	(?)
0	0xA7	(?)
0	0xA8	(?)
0	0xA9	(?)
0	0xAA	(?)
0	0xAB	(?)
0	0xAC	(?)
0	0xAD	(?) RegionUnk5
0	0xAE	(?)
0	0xAF	(?)
0	0xB0	(?)
0	0xB1	(?)
0	0xB2	(?)
0	0xB3	(?)
0	0xB4	(?)
0	0xB5	(?)
0	0xB6	(?)
0	0xB7	(?)
0	0xB8	(?)
0	0xB9	(n/a)
0	0xBA	(n/a)
0	0xBB	(n/a)
0	0xBC	(n/a)
0	0xBD	(n/a)
0	0xBE	(n/a)
0	0xBF	(n/a)
0	0xC0	(?) RegionUnk3
0	0xC1	(?) RegionUnk1
0	0xC2	(?)
0	0xC3	(n/a)
0	0xC4	(?)
0	0xC5	(?)
0	0xC6	(?)
0	0xC7	(?)
0	0xC8	(?)
0	0xC9	(?)
0	0xCA	(?)
0	0xCB	(?)
0	0xCC	(?)
0	0xCD	(?)
0	0xCE	(?)
0	0xCF	(?)
0	0xD0	(?)
0	0xD1	(?)
0	0xD2	(?)
0	0xD3	(?)
0	0xD4	(?)
0	0xD5	(?)
0	0xD6	(?)
0	0xD7	(?)
0	0xD8	(?)
0	0xD9	(?)
0	0xDA	(?)
0	0xDB	(?)
0	0xDC	(?)
0	0xDD	ERAPI_DecompressVPK
0	0xDE	(?)
0	0xDF	(?)
0	0xE0	ERAPI_SoftReset
0	0xE1	(?)
0	0xE2	(?)
0	0xE2	(?)
0	0xE3	(?)
0	0xE4	(?)
0	0xE5	(?)
0	0xE6	(?)
0	0xE7	(?)
0	0xE8	(?)
0	0xE9	(n/a)
0	0xEA	(?) BL_irq_sio_dma3
0	0xEB	(?) ERAPI_unk3
0	0xEC	(?)
0	0xED	(?)
0	0xEF	(?) ERAPI_unk2
0	0xF0	(?) ERAPI_unk1
0	0xF1	ERAPI_RandInit
0	0xF2	(?)
8	0x00	ERAPI_Exit
8	0x01	(?)
8	0x02	(?)
8	0x03	ERAPI_Div
8	0x04	ERAPI_Mod
8	0x05	ERAPI_PlaySoundSystem
8	0x06	ERAPI_sound_unk1
8	0x07	ERAPI_Rand
8	0x08	ERAPI_SetSoundVolume
8	0x09	(?)
8	0x0A	(?)
8	0x0B	ERAPI_Set_040000xx
8	0x0C	ERAPI_Get_040000xx
8	0x0D	(?)
8	0x0E	(?)
8	0x0F	(?)
8	0x10	(?)
8	0x11	ERAPI_Div_Signed
8	0x12	ERAPI_RandMax
8	0x13	ERAPI_SetSoundSpeed
8	0x14	(?)
8	0x15	(?)
8	0x16	ERAPI_SoundPause
8	0x17	ERAPI_SoundResume
8	0x18	ERAPI_PlaySoundSystemEx
8	0x19	ERAPI_IsSoundPlaying
8	0x1A	(?)
8	0x1B	(?)
8	0x1C	(?)
8	0x1D	(?)
8	0x1E	(?)
8	0x1F	(?)
8	0x20	(?)
8	0x21	(?)
8	0x22	(?) ERAPI_sound_unk7
8	0x23	(?) ERAPI_sound_unk8
8	0x24	(?) ERAPI_sound_unk9
8	0x25	(?) ERAPI_sound_unk10
8	0x26	(?) bg0_bg1_bg2_bg3_mosaic
8	0x27	(?)
8	0x28	(?)
8	0x29	(?)
8	0x2A	(?) get_u16_from_02030110
8	0x2B	(?)
8	0x2C	(?) get_u16_from_02030112
8	0x2D	(?) get_u16_from_02030114
8	0x2E	(?)
8	0x2F	(?)
8	0x30	(?)
8	0x31	(?)
8	0x32	(?) Init_BLDCNT_FF_BLDY_08
8	0x33	(?) Init_BLDCNT_00
8	0x34	(?)
8	0x35	(?)
8	0x36	(?) ResetTimer3
8	0x37	(?) GetTimer3Counter
8	0x38	(?)

ERAPI_FadeIn
A	speed, number of frames (0..x)
n/a

ERAPI_LoadBackgroundSystem
A	number of background (1..101)
E	bg# (0..3)
n/a

ERAPI_SetBackgroundOffset
A	bg# (0..3)
DE	X
BC	Y
n/a

ERAPI_SetBackgroundMode
A	mode (0..2)
n/a

ERAPI_LoadBackgroundCustom
A	bg# (0..3)
DE	pointer to struct_background
max. tile data size = 0x3000 bytes max. map data size = 0x1000 bytes

ERAPI_CreateSpriteSystem
-	-
n/a

ERAPI_SpriteFree
HL	sprite handle
n/a

ERAPI_SetSpritePos
HL	sprite handle
DE	X
BC	Y
n/a

ERAPI_SetSpriteFrame
HL	sprite handle
E	frame number (0..x)
n/a

ERAPI_SetSpriteAutoMove
HL	sprite handle
DE	X
BC	Y
n/a

ERAPI_SpriteShow
HL	sprite handle
n/a

ERAPI_SpriteHide
HL	sprite handle
n/a

ERAPI_SpriteAutoScaleUntilSize
HL	sprite handle
DE	size (0x100 = normal size, lower value = larger, higher value = smaller)
C	speed (higher value is slower)
n/a

ERAPI_SetSpriteVisible
HL	sprite handle
E	0 = not visible / 1 = visible
n/a

ERAPI_SetBackgroundPalette
HL	pointer to palette data
DE	offset
C	number of colors (1..x)
n/a

ERAPI_SetSpritePalette
HL	pointer to palette data
DE	offset
C	number of colors (1..x)
n/a

ERAPI_CreateRegion
H	bg# (0..3)
L	palbank# (0..15)
D	left (in tiles)
E	top (in tiles)
B	width (in tiles)
C	height (in tiles)
n/a

ERAPI_SetTextColor
A	region handle
D	color foreground (0..15)
E	color background (0..15)
n/a

ERAPI_DrawText
A	region handle
BC	pointer to text
D	X
E	Y
n/a

ERAPI_Exit
A	return value (1=restart 2=exit)
n/a

ERAPI_PlaySoundSystem
HL	sound number
n/a

ERAPI_RandMax
A	max
returns random value in A in the range 0 to max-1

struct_background
u16	pointer to tile data
u16	pointer to palette data
u16	pointer to map data
u16	number of tiles (1..x)
u16	number of palettes (1..x)

struct_sprite
u16	pointer to tile data
u16	pointer to palette data
u8	width (in tiles)
u8	height (in tiles)
u8	frames
u8	?
u8	? tile width
u8	? tile height
u8	? frames