dreamcast/regs/core_bits.csv

1	register_name	enum_name	bits	bit_name	value	mask	description
2	ID		31-16	device_id
3	ID		15-0	vendor_id
4
5	REVISION		15-0	chip_revision
6
7	SOFTRESET		2	sdram_if_soft_reset	1
8	SOFTRESET		1	pipeline_soft_reset	1
9	SOFTRESET		0	ta_soft_reset	1
10
11	STARTRENDER		0	start_render	1
12
13	TEST_SELECT		9-5	diagdb_data
14	TEST_SELECT		4-0	diagda_data
15
16	PARAM_BASE		23-0	base_address		0xf00000
17
18	REGION_BASE		23-0	base_address		0xfffffc
19
20	SPAN_SORT_CFG		16	cache_bypass	1
21	SPAN_SORT_CFG		8	offset_sort_enable	1
22	SPAN_SORT_CFG		0	span_sort_enable	1
23
24	VO_BORDER_COL		24	chroma		0b1
25	VO_BORDER_COL		23-16	red		0xff
26	VO_BORDER_COL		15-8	green		0xff
27	VO_BORDER_COL		7-0	blue		0xff
28
29	FB_R_CTRL	vclk_div	23	pclk_vclk_2	0
30	FB_R_CTRL	vclk_div	23	pclk_vclk_1	1
31	FB_R_CTRL		22	fb_strip_buf_en	1
32	FB_R_CTRL		21-16	fb_stripsize		0b111_110	In units of 16 lines, in multiples of 32 lines. 0x02 is 32 lines, 0x04 is 64 lines, 0x03 is an illegal value
33	FB_R_CTRL		15-8	fb_chroma_threshold		0xff
34	FB_R_CTRL		6-4	fb_concat		0b11
35	FB_R_CTRL	fb_depth	3-2	0555_RGB_16BIT	0
36	FB_R_CTRL	fb_depth	3-2	0565_RGB_16BIT	1
37	FB_R_CTRL	fb_depth	3-2	888_RGB_24BIT_PACKED	2
38	FB_R_CTRL	fb_depth	3-2	0888_RGB_32BIT	3
39	FB_R_CTRL		1	fb_line_double	1
40	FB_R_CTRL		0	fb_enable	1
41
42	FB_W_CTRL		23-16	fb_alpha_threshold		0xff
43	FB_W_CTRL		15-8	fb_kval		0xff
44	FB_W_CTRL		3	fb_dither	1
45	FB_W_CTRL	fb_packmode	2-0	0555_krgb_16bit	0
46	FB_W_CTRL	fb_packmode	2-0	565_rgb_16bit	1
47	FB_W_CTRL	fb_packmode	2-0	4444_argb_16bit	2
48	FB_W_CTRL	fb_packmode	2-0	1555_argb_16bit	3
49	FB_W_CTRL	fb_packmode	2-0	888_rgb_24bit_packed	4
50	FB_W_CTRL	fb_packmode	2-0	0888_krgb_32bit	5
51	FB_W_CTRL	fb_packmode	2-0	8888_argb_32bit	6
52
53	FB_W_LINESTRIDE		8-0	fb_line_stride		0xff	In 8-byte units
54
55	FB_R_SOF1		23-0	frame_buffer_read_address_frame_1		0xfffffc
56
57	FB_R_SOF2		23-0	frame_buffer_read_address_frame_2		0xfffffc
58
59	FB_R_SIZE		29-20	fb_modulus		0x3ff	In 4-byte units
60	FB_R_SIZE		19-10	fb_y_size		0x3ff
61	FB_R_SIZE		9-0	fb_x_size		0x3ff
62
63	FB_W_SOF1		24-0	frame_buffer_write_address_frame_1		0x1fffffc
64
65	FB_W_SOF2		24-0	frame_buffer_write_address_frame_2		0x1fffffc
66
67	FB_X_CLIP		26-16	fb_x_clip_max		0x7ff
68	FB_X_CLIP		10-0	fb_x_clip_min		0x7ff
69
70	FB_Y_CLIP		25-16	fb_y_clip_max		0x3ff
71	FB_Y_CLIP		9-0	fb_y_clip_min		0x3ff
72
73	FPU_SHAD_SCALE	simple_shadow_enable	8	parameter_selection_volume_mode	0
74	FPU_SHAD_SCALE	simple_shadow_enable	8	intensity_volume_mode	1
75	FPU_SHAD_SCALE		7-0	scale_factor_for_shadows		0xff
76
77	FPU_CULL_VAL		30-0	culling_comparison_value		float_0_8_23
78
79	FPU_PARAM_CFG	region_header_type	21	type_1	0
80	FPU_PARAM_CFG	region_header_type	21	type_2	1
81	FPU_PARAM_CFG		19-14	tsp_parameter_burst_threshold		0x3f
82	FPU_PARAM_CFG		13-8	isp_parameter_burst_threshold		0x3f
83	FPU_PARAM_CFG		7-4	pointer_burst_size		0xf
84	FPU_PARAM_CFG		3-0	pointer_first_burst_size		0xf
85
86	HALF_OFFSET	tsp_texel_sampling_position	2	top_left
87	HALF_OFFSET	tsp_texel_sampling_position	2	center
88	HALF_OFFSET	tsp_pixel_sampling_position	1	top_left
89	HALF_OFFSET	tsp_pixel_sampling_position	1	center
90	HALF_OFFSET	fpu_pixel_sampling_position	0	top_left
91	HALF_OFFSET	fpu_pixel_sampling_position	0	center
92
93	FPU_PERP_VAL		30-0	perpendicular_triangle_compare		float_0_8_23
94
95	ISP_BACKGND_D		31-4	background_plane_depth		float_1_8_19
96
97	ISP_BACKGND_T		28	cache_bypass	1
98	ISP_BACKGND_T		27	shadow	1
99	ISP_BACKGND_T		26-24	skip		0b111
100	ISP_BACKGND_T		23-3	tag_address		0x1fffff	In 32-bit units
101	ISP_BACKGND_T		2-0	tag_offset		0b111
102
103	ISP_FEED_CFG		23-14	cache_size_for_translucency		0x3ff	Must be between 0x020 and 0x200
104	ISP_FEED_CFG		13-4	punch_through_chunk_size		0x3ff	Must be between 0x020 and 0x200, must be larger than cache_size_for_translucency
105	ISP_FEED_CFG		3	discard_mode	1
106	ISP_FEED_CFG		0	pre_sort_mode	1
107
108	SDRAM_REFRESH		7-0	refresh_counter_value		0xff
109
110	SDRAM_ARB_CFG	override_value	21-18	priority_only	0x0
111	SDRAM_ARB_CFG	override_value	21-18	rendered_data	0x1
112	SDRAM_ARB_CFG	override_value	21-18	texture_vq_index	0x2
113	SDRAM_ARB_CFG	override_value	21-18	texture_normal_data_and_vq_codebook	0x3
114	SDRAM_ARB_CFG	override_value	21-18	tile_accelerator_isp_tsp_data	0x4
115	SDRAM_ARB_CFG	override_value	21-18	tile_accelerator_pointers	0x5
116	SDRAM_ARB_CFG	override_value	21-18	sh4	0x6
117	SDRAM_ARB_CFG	override_value	21-18	tsp_parameters	0x7
118	SDRAM_ARB_CFG	override_value	21-18	tsp_region_data	0x8
119	SDRAM_ARB_CFG	override_value	21-18	isp_pointer_data	0x9
120	SDRAM_ARB_CFG	override_value	21-18	isp_parameters	0xa
121	SDRAM_ARB_CFG	override_value	21-18	crt_controller	0xb
122	SDRAM_ARB_CFG	arbiter_priority_control	17-16	priority_arbitration_only	0x0
123	SDRAM_ARB_CFG	arbiter_priority_control	17-16	override_value_field	0x1
124	SDRAM_ARB_CFG	arbiter_priority_control	17-16	round_robin_counter	0x2
125	SDRAM_ARB_CFG		15-8	arbiter_crt_page_break_latency_count_value		0xff
126	SDRAM_ARB_CFG		7-0	arbiter_page_break_latency_count_value		0xff
127
128	SDRAM_CFG		28-26	read_command_to_returned_data_delay		0b111
129	SDRAM_CFG		25-23	cas_latency_value		0b111
130	SDRAM_CFG		22-21	activate_to_activate_period		0b11
131	SDRAM_CFG		20-18	read_to_write_period		0b111
132	SDRAM_CFG		17-14	refresh_to_activate_period		0b1111
133	SDRAM_CFG		11-10	pre_charge_to_activate_period		0b11
134	SDRAM_CFG		9-6	activate_to_pre_charge_period		0b1111
135	SDRAM_CFG		5-4	activate_to_read_write_command_period		0b11
136	SDRAM_CFG		3-2	write_to_pre_charge_period		0b11
137	SDRAM_CFG		1-0	read_to_pre_charge_period		0b11
138
139	FOG_COL_RAM		23-16	red		0xff
140	FOG_COL_RAM		15-8	green		0xff
141	FOG_COL_RAM		7-0	blue		0xff
142
143	FOG_COL_VERT		23-16	red		0xff
144	FOG_COL_VERT		15-8	green		0xff
145	FOG_COL_VERT		7-0	blue		0xff
146
147	FOG_DENSITY		15-8	fog_scale_mantissa		0xff
148	FOG_DENSITY		7-0	fog_scale_exponent		0xff
149
150	FOG_CLAMP_MAX		31-24	alpha		0xff
151	FOG_CLAMP_MAX		23-16	red		0xff
152	FOG_CLAMP_MAX		15-8	green		0xff
153	FOG_CLAMP_MAX		7-0	blue		0xff
154
155	FOG_CLAMP_MIN		31-24	alpha		0xff
156	FOG_CLAMP_MIN		23-16	red		0xff
157	FOG_CLAMP_MIN		15-8	green		0xff
158	FOG_CLAMP_MIN		7-0	blue		0xff
159
160	SPG_TRIGGER_POS		25-16	trigger_v_count
161	SPG_TRIGGER_POS		9-0	trigger_h_count
162
163	SPG_HBLANK_INT		25-16	hblank_in_interrupt
164	SPG_HBLANK_INT	hblank_int_mode	13-12	output_equal_line_comp_val	0x0
165	SPG_HBLANK_INT	hblank_int_mode	13-12	output_every_line_comp_val	0x1
166	SPG_HBLANK_INT	hblank_int_mode	13-12	output_every_line	0x2
167	SPG_HBLANK_INT		9-0	line_comp_val		0x3ff
168
169	SPG_VBLANK_INT		25-16	vblank_out_interrupt_line_number		0x3ff
170	SPG_VBLANK_INT		9-0	vblank_in_interrupt_line_number		0x3ff
171
172	SPG_CONTROL	csync_on_h	9	hsync	0
173	SPG_CONTROL	cysnc_on_h	9	csync	1
174	SPG_CONTROL	sync_direction	8	input	0
175	SPG_CONTROL	sync_direction	8	output	1
176	SPG_CONTROL		7	pal	1
177	SPG_CONTROL		6	ntsc	1
178	SPG_CONTROL		5	force_field2	1
179	SPG_CONTROL		4	interlace	1
180	SPG_CONTROL		3	spg_lock	1
181	SPG_CONTROL	mcsync_pol	2	active_low	0
182	SPG_CONTROL	mcsync_pol	2	active_high	1
183	SPG_CONTROL	mvsync_pol	1	active_low	0
184	SPG_CONTROL	mvsync_pol	1	active_high	1
185	SPG_CONTROL	mhsync_pol	0	active_low	0
186	SPG_CONTROL	mhsync_pol	0	active_high	1
187
188	SPG_HBLANK		25-16	hbend		0x3ff
189	SPG_HBLANK		9-0	hbstart		0x3ff
190
191	SPG_LOAD		25-16	vcount		0x3ff
192	SPG_LOAD		9-0	hcount		0x3ff
193
194	SPG_VBLANK		25-16	vbend		0x3ff
195	SPG_VBLANK		9-0	vbstart		0x3ff
196
197	SPG_WIDTH		31-22	eqwidth		0x3ff
198	SPG_WIDTH		21-12	bpwidth		0x3ff
199	SPG_WIDTH		11-8	vswidth		0b1111
200	SPG_WIDTH		6-0	hswidth		0x7f
201
202	TEXT_CONTROL	code_book_endian	17	little_endian	0
203	TEXT_CONTROL	code_book_endian	17	big_endian	1
204	TEXT_CONTROL	index_endian	16	little_endian	0
205	TEXT_CONTROL	index_endian	16	big_endian	1
206	TEXT_CONTROL		12-8	bank_bit		0x1f
207	TEXT_CONTROL		4-0	stride		0x1f
208
209	VO_CONTROL		21	pclk_delay_reset	1
210	VO_CONTROL		20-16	pclk_delay		0b1111
211	VO_CONTROL		8	pixel_double	1
212	VO_CONTROL	field_mode	7-4	use_field_flag_from_spg	0x0
213	VO_CONTROL	field_mode	7-4	use_inverse_of_field_flag_from_spg	0x1
214	VO_CONTROL	field_mode	7-4	field_1_fixed	0x2
215	VO_CONTROL	field_mode	7-4	field_2_fixed	0x3
216	VO_CONTROL	field_mode	7-4	field_1_when_the_active_edges_of_hsync_and_vsync_match	0x4
217	VO_CONTROL	field_mode	7-4	field_2_when_the_active_edges_of_hsync_and_vsync_match	0x5
218	VO_CONTROL	field_mode	7-4	field_1_when_hsync_becomes_active_in_the_middle_of_the_vsync_active_edge	0x6
219	VO_CONTROL	field_mode	7-4	field_2_when_hsync_becomes_active_in_the_middle_of_the_vsync_active_edge	0x7
220	VO_CONTROL	field_mode	7-4	inverted_at_the_active_edge_of_vsync	0x8
221	VO_CONTROL	blank_video	3	display_the_screen	0
222	VO_CONTROL	blank_video	3	do_not_display_the_screen	1
223	VO_CONTROL	blank_pol	2	active_low	0
224	VO_CONTROL	blank_pol	2	active_high	1
225	VO_CONTROL	vsync_pol	1	active_low	0
226	VO_CONTROL	vsync_pol	1	active_high	1
227	VO_CONTROL	hsync_pol	0	active_low	0
228	VO_CONTROL	hsync_pol	0	active_high	1
229
230	VO_STARTX		9-0	horizontal_start_position		0x3ff
231
232	VO_STARTY		25-16	vertical_start_position_on_field_2		0x3ff
233	VO_STARTY		9-0	vertical_start_position_on_field_1		0x3ff
234
235	SCALER_CTL	field_select	18	field_1	0
236	SCALER_CTL	field_select	18	field_2	1
237	SCALER_CTL		17	interlace	1
238	SCALER_CTL		16	horizontal_scaling_enable	1
239	SCALER_CTL		15-0	vertical_scale_factor		0xffff
240
241	PAL_RAM_CTL	pixel_format	1-0	argb1555	0
242	PAL_RAM_CTL	pixel_format	1-0	rgb565	1
243	PAL_RAM_CTL	pixel_format	1-0	argb4444	2
244	PAL_RAM_CTL	pixel_format	1-0	argb8888	3
245
246	SPG_STATUS		13	vsync
247	SPG_STATUS		12	hsync
248	SPG_STATUS		11	blank
249	SPG_STATUS		10	fieldnum
250	SPG_STATUS		9-0	scanline
251
252	FB_BURSTCTRL		19-16	wr_burst		0b1111
253	FB_BURSTCTRL		14-8	vid_lat		0x7f
254	FB_BURSTCTRL		5-0	vid_burst		0x3f
255
256	FB_C_SOF		23-2	frame_buffer_current_read_address
257
258	Y_COEFF		15-8	coefficient_1		0xff
259	Y_COEFF		7-0	coefficient_0_2		0xff
260
261	PT_ALPHA_REF		7-0	alpha_reference_for_punch_through		0xff
262
263	FOG_TABLE		15-0	fog_table_data		0xffff
264
265	PALETTE_RAM		31-0	palette_data		0xffff_ffff