diff --git a/.gitignore b/.gitignore
index f8a518d..ac215f6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
+.~*
+*.csv
 *.pyc
 __pycache__
 *.gch
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..6693a37
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,2 @@
+%.csv: %.ods
+	libreoffice --headless --convert-to csv:"Text - txt - csv (StarCalc)":44,34,76,,,,true --outdir $(dir $@) $<
diff --git a/render_voodoo2_csv.py b/render_voodoo2_csv.py
new file mode 100644
index 0000000..63c759f
--- /dev/null
+++ b/render_voodoo2_csv.py
@@ -0,0 +1,122 @@
+import csv
+import sys
+from dataclasses import dataclass
+from generate import renderer
+
+@dataclass
+class RegisterBitDef:
+    name: str
+    bits: tuple[int, int]
+    bit_prefix: str
+    bit_name: str
+    enum_name: str
+    enum_value: str
+    description: str
+
+def parse_bit(s):
+    if ':' in s:
+        a, b = s.split(':')
+        return int(a, 10), int(b, 10)
+    else:
+        return int(s, 10), int(s, 10)
+
+last_def = None
+
+def parse_value(s):
+    if not s:
+        return None
+    elif s.startswith("0x"):
+        return int(s.removeprefix("0x"), 16)
+    else:
+        return int(s.removeprefix("0x"), 10)
+
+def parse_csv_row(row):
+    global last_def
+    name, bits, bit_prefix, bit_name, enum_name, enum_value, description = row
+    if not name:
+        assert last_def is not None
+        assert not bits
+        assert not bit_prefix
+        assert not bit_name
+        assert enum_name
+        assert enum_value != ''
+        assert not description
+
+        assert last_def.enum_name
+        assert last_def.enum_value is not None
+
+        name = last_def.name
+        bits = last_def.bits
+        bit_prefix = last_def.bit_prefix
+        bit_name = last_def.bit_name
+        description = last_def.description
+    else:
+        bits = parse_bit(bits)
+
+    assert name, name
+    assert bit_name, bit_name
+    if enum_name:
+        assert enum_value, (enum_name, enum_value)
+    assert description, description
+
+    bit_def = RegisterBitDef(
+        name,
+        bits,
+        bit_prefix or None,
+        bit_name,
+        enum_name or None,
+        parse_value(enum_value),
+        description
+    )
+    last_def = bit_def
+    return bit_def
+
+def filter_row(row):
+    if row == ['', '', '', '', '', '', '']:
+        return False
+    name, bits, bit_prefix, bit_name, enum_name, enum_value, description = row
+    return description != 'reserved' and (bit_name or enum_name)
+
+def bit_mask(d):
+    high, low = d.bits
+    return (1 << ((high - low) + 1)) - 1
+
+def format_value(d):
+    if d.enum_name is not None:
+        assert d.enum_value is not None
+        assert d.enum_value <= bit_mask(d)
+        return f"({d.enum_value} << {d.bits[1]})"
+    elif bit_mask(d) == 1:
+        return f"(1 << {d.bits[1]})"
+    else:
+        return f"(((n) & {hex(bit_mask(d))}) << {d.bits[1]})"
+
+def format_macro(d):
+    macro = f"{d.name.upper()}"
+    if d.bit_prefix is not None:
+        macro += f"__{d.bit_prefix.upper()}"
+    macro += f"__{d.bit_name.upper()}"
+    if d.enum_name is not None:
+        macro += f"__{d.enum_name.upper()}"
+    elif bit_mask(d) != 1:
+        macro += "(n)"
+    return macro
+
+def format_def(d):
+    return f"#define {format_macro(d)} {format_value(d)}"
+
+def render_defs(defs):
+    last_name = None
+    for d in defs:
+        if last_name is not None and d.name != last_name:
+            yield ""
+        yield format_def(d)
+        last_name = d.name
+
+with open(sys.argv[1], 'r') as f:
+    reader = csv.reader(f)
+    defs = list(map(parse_csv_row, filter(filter_row, reader)))
+
+render, out = renderer()
+render(render_defs(defs))
+sys.stdout.write(out.getvalue())
diff --git a/voodoo2_bits.h b/voodoo2_bits.h
new file mode 100644
index 0000000..35fb075
--- /dev/null
+++ b/voodoo2_bits.h
@@ -0,0 +1,461 @@
+#define STATUS__PCI_FIFO_FREESPACE(n) (((n) & 0x3f) << 0)
+#define STATUS__VERTICAL_RETRACE (1 << 6)
+#define STATUS__CHUCK_BUSY (1 << 7)
+#define STATUS__BRUCE_BUSY (1 << 8)
+#define STATUS__GRAPHICS_BUSY (1 << 9)
+#define STATUS__DISPLAYED_BUFFER(n) (((n) & 0x3) << 10)
+#define STATUS__MEMORY_FIFO_FREESPACE(n) (((n) & 0xffff) << 12)
+#define STATUS__SWAP_BUFFERS_PENDING(n) (((n) & 0x7) << 28)
+
+#define INTRCTRL__INTERRUPT_ENABLE__HORIZONTAL_SYNC_RISING_EDGE (1 << 0)
+#define INTRCTRL__INTERRUPT_ENABLE__HORIZONTAL_SYNC_FALLING_EDGE (1 << 1)
+#define INTRCTRL__INTERRUPT_ENABLE__VERTICAL_SYNC_RISING_EDGE (1 << 2)
+#define INTRCTRL__INTERRUPT_ENABLE__VERTICAL_SYNC_FALLING_EDGE (1 << 3)
+#define INTRCTRL__INTERRUPT_ENABLE__PCI_FIFO_FULL (1 << 4)
+#define INTRCTRL__INTERRUPT_ENABLE__USER_INTERRUPT_COMMAND (1 << 5)
+#define INTRCTRL__INTERRUPT_GENERATED__HORIZONTAL_SYNC_RISING_EDGE (1 << 6)
+#define INTRCTRL__INTERRUPT_GENERATED__HORIZONTAL_SYNC_FALLING_EDGE (1 << 7)
+#define INTRCTRL__INTERRUPT_GENERATED__VERTICAL_SYNC_RISING_EDGE (1 << 8)
+#define INTRCTRL__INTERRUPT_GENERATED__VERTICAL_SYNC_FALLING_EDGE (1 << 9)
+#define INTRCTRL__INTERRUPT_GENERATED__PCI_FIFO_FULL (1 << 10)
+#define INTRCTRL__INTERRUPT_GENERATED__USER_INTERRUPT_COMMAND (1 << 11)
+#define INTRCTRL__USER_INTERRUPT_COMMAND_TAG(n) (((n) & 0xff) << 12)
+#define INTRCTRL__EXTERNAL_PIN_PCI_INTA (1 << 31)
+
+#define FBZCOLORPATH__RGB_SELECT__ITERATED_RGB (0 << 0)
+#define FBZCOLORPATH__RGB_SELECT__BRUCE_COLOR_OUTPUT (1 << 0)
+#define FBZCOLORPATH__RGB_SELECT__COLOR1_RGB (2 << 0)
+#define FBZCOLORPATH__ALPHA_SELECT__ITERATED_A (0 << 2)
+#define FBZCOLORPATH__ALPHA_SELECT__BRUCE_ALPHA_OUTPUT (1 << 2)
+#define FBZCOLORPATH__ALPHA_SELECT__COLOR1_ALPHA (2 << 2)
+#define FBZCOLORPATH__CC_LOCALSELECT__ITERATED_RGB (0 << 4)
+#define FBZCOLORPATH__CC_LOCALSELECT__COLOR0_RGB (1 << 4)
+#define FBZCOLORPATH__CCA_LOCALSELECT__ITERATED_ALPHA (0 << 5)
+#define FBZCOLORPATH__CCA_LOCALSELECT__COLOR0_ALPHA (1 << 5)
+#define FBZCOLORPATH__CCA_LOCALSELECT__CLAMPED_ITERATED (2 << 5)
+#define FBZCOLORPATH__CCA_LOCALSELECT__CLAMPED_ITERATED_W (3 << 5)
+#define FBZCOLORPATH__CC_LOCALSELECT_OVERRIDE (1 << 7)
+#define FBZCOLORPATH__CC_ZERO_OTHER (1 << 8)
+#define FBZCOLORPATH__CC_SUB_CLOCAL (1 << 9)
+#define FBZCOLORPATH__CC_MSELECT__ZERO (0 << 10)
+#define FBZCOLORPATH__CC_MSELECT__C_LOCAL (1 << 10)
+#define FBZCOLORPATH__CC_MSELECT__A_OTHER (2 << 10)
+#define FBZCOLORPATH__CC_MSELECT__A_LOCAL (3 << 10)
+#define FBZCOLORPATH__CC_MSELECT__TEXTURE_ALPHA (4 << 10)
+#define FBZCOLORPATH__CC_MSELECT__TEXTURE_RGB (5 << 10)
+#define FBZCOLORPATH__CC_REVERSE_BLEND (1 << 13)
+#define FBZCOLORPATH__CC_ADD_CLOCAL (1 << 14)
+#define FBZCOLORPATH__CC_ADD_ALOCAL (1 << 15)
+#define FBZCOLORPATH__CC_INVERT_OUTPUT (1 << 16)
+#define FBZCOLORPATH__CCA_ZERO_OTHER (1 << 17)
+#define FBZCOLORPATH__CCA_SUB_CLOCAL (1 << 18)
+#define FBZCOLORPATH__CCA_MSELECT__ZERO (0 << 19)
+#define FBZCOLORPATH__CCA_MSELECT__A_LOCAL (1 << 19)
+#define FBZCOLORPATH__CCA_MSELECT__A_OTHER (2 << 19)
+#define FBZCOLORPATH__CCA_MSELECT__TEXTURE_ALPHA (4 << 19)
+#define FBZCOLORPATH__CCA_REVERSE_BLEND (1 << 22)
+#define FBZCOLORPATH__CCA_ADD_CLOCAL (1 << 23)
+#define FBZCOLORPATH__CCA_ADD_ALOCAL (1 << 24)
+#define FBZCOLORPATH__CCA_INVERT_OUTPUT (1 << 25)
+#define FBZCOLORPATH__PARAMETER_ADJUST (1 << 26)
+#define FBZCOLORPATH__ENABLE_TEXTURE_MAPPING (1 << 27)
+#define FBZCOLORPATH__ENABLE_RGBA_Z_W_CLAMPING (1 << 28)
+#define FBZCOLORPATH__ENABLE_ANTI_ALIASING (1 << 29)
+
+#define FOGMODE__ENABLE_FOG (1 << 0)
+#define FOGMODE__FOGADD (1 << 1)
+#define FOGMODE__FOGMULT (1 << 2)
+#define FOGMODE__FOGALPHA (1 << 3)
+#define FOGMODE__FOGZ (1 << 4)
+#define FOGMODE__FOGCONSTANT (1 << 5)
+#define FOGMODE__FOGDITHER (1 << 6)
+#define FOGMODE__FOGZONES (1 << 7)
+
+#define ALPHAMODE__ENABLE_ALPHA_FUNCTION (1 << 0)
+#define ALPHAMODE__ALPHA_FUNCTION__NEVER (0 << 1)
+#define ALPHAMODE__ALPHA_FUNCTION__LESS_THAN (1 << 1)
+#define ALPHAMODE__ALPHA_FUNCTION__EQUAL (2 << 1)
+#define ALPHAMODE__ALPHA_FUNCTION__LESS_THAN_OR_EQUAL (3 << 1)
+#define ALPHAMODE__ALPHA_FUNCTION__GREATER_THAN (4 << 1)
+#define ALPHAMODE__ALPHA_FUNCTION__NOT_EQUAL (5 << 1)
+#define ALPHAMODE__ALPHA_FUNCTION__GREATER_THAN_OR_EQUAL (6 << 1)
+#define ALPHAMODE__ALPHA_FUNCTION__ALWAYS (7 << 1)
+#define ALPHAMODE__ENABLE_ALPHA_BLENDING (1 << 4)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__SOURCE_RGB__AZERO (0 << 8)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__SOURCE_RGB__ASRC_ALPHA (1 << 8)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__SOURCE_RGB__A_COLOR (2 << 8)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__SOURCE_RGB__ADST_ALPHA (3 << 8)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__SOURCE_RGB__AONE (4 << 8)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__SOURCE_RGB__AOMSRC_ALPHA (5 << 8)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__SOURCE_RGB__AOM_COLOR (6 << 8)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__SOURCE_RGB__AOMDST_ALPHA (7 << 8)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__SOURCE_RGB__ASATURATE (15 << 8)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__DESTINATION_RGB__AZERO (0 << 12)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__DESTINATION_RGB__ASRC_ALPHA (1 << 12)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__DESTINATION_RGB__A_COLOR (2 << 12)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__DESTINATION_RGB__ADST_ALPHA (3 << 12)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__DESTINATION_RGB__AONE (4 << 12)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__DESTINATION_RGB__AOMSRC_ALPHA (5 << 12)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__DESTINATION_RGB__AOM_COLOR (6 << 12)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__DESTINATION_RGB__AOMDST_ALPHA (7 << 12)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__DESTINATION_RGB__ACOLORBEFOREFOG (15 << 12)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__SOURCE_ALPHA__AZERO (0 << 16)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__SOURCE_ALPHA__AONE (4 << 16)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__DESTINATION_ALPHA__AZERO (0 << 20)
+#define ALPHAMODE__ALPHA_BLENDING_FACTOR__DESTINATION_ALPHA__AONE (4 << 20)
+#define ALPHAMODE__ALPHA_REFERENCE_VALUE(n) (((n) & 0xff) << 24)
+
+#define FBZMODE__ENABLE_CLIPPING_RECTANGLE (1 << 0)
+#define FBZMODE__ENABLE_CHROMA_KEYING (1 << 1)
+#define FBZMODE__ENABLE_STIPPLE_REGISTER_MASKING (1 << 2)
+#define FBZMODE__FLOATING_POINT_DEPTH_BUFFER (1 << 3)
+#define FBZMODE__ENABLE_DEPTH_BUFFERING (1 << 4)
+#define FBZMODE__DEPTH_BUFFER_FUNCTION__NEVER (0 << 5)
+#define FBZMODE__DEPTH_BUFFER_FUNCTION__LESS_THAN (1 << 5)
+#define FBZMODE__DEPTH_BUFFER_FUNCTION__EQUAL (2 << 5)
+#define FBZMODE__DEPTH_BUFFER_FUNCTION__LESS_THAN_OR_EQUAL (3 << 5)
+#define FBZMODE__DEPTH_BUFFER_FUNCTION__GREATER_THAN (4 << 5)
+#define FBZMODE__DEPTH_BUFFER_FUNCTION__NOT_EQUAL (5 << 5)
+#define FBZMODE__DEPTH_BUFFER_FUNCTION__GREATER_THAN_OR_EQUAL (6 << 5)
+#define FBZMODE__DEPTH_BUFFER_FUNCTION__ALWAYS (7 << 5)
+#define FBZMODE__ENABLE_DITHERING (1 << 8)
+#define FBZMODE__RGB_BUFFER_WRITE_MASK (1 << 9)
+#define FBZMODE__DEPTH_ALPHA_BUFFER_WRITE_MASK (1 << 10)
+#define FBZMODE__DITHER_ALGORITHM (1 << 11)
+#define FBZMODE__ENABLE_STIPPLE_PATTERN_MASKING (1 << 12)
+#define FBZMODE__ENABLE_ALPHA_CHANNEL_MASK (1 << 13)
+#define FBZMODE__DRAW_BUFFER__FRONT_BUFFER (0 << 14)
+#define FBZMODE__DRAW_BUFFER__BACK_BUFFER (1 << 14)
+#define FBZMODE__ENABLE_DEPTH_BIASING (1 << 16)
+#define FBZMODE__RENDERING_COMMANDS_Y_ORIGIN (1 << 17)
+#define FBZMODE__ENABLE_ALPHA_PLANES (1 << 18)
+#define FBZMODE__ENABLE_ALPHA_BLENDING_DITHER_SUBTRACTION (1 << 19)
+#define FBZMODE__DEPTH_BUFFER_SOURCE_COMPARE_SELECT (1 << 20)
+#define FBZMODE__DEPTH_FLOAT_SELECT (1 << 21)
+
+#define LFBMODE__LINEAR_FRAME_BUFFER__WRITE_FORMAT__RGB565 (0 << 0)
+#define LFBMODE__LINEAR_FRAME_BUFFER__WRITE_FORMAT__XRGB1555 (1 << 0)
+#define LFBMODE__LINEAR_FRAME_BUFFER__WRITE_FORMAT__ARGB1555 (2 << 0)
+#define LFBMODE__LINEAR_FRAME_BUFFER__WRITE_FORMAT__RGB888 (4 << 0)
+#define LFBMODE__LINEAR_FRAME_BUFFER__WRITE_FORMAT__ARGB8888 (5 << 0)
+#define LFBMODE__LINEAR_FRAME_BUFFER__WRITE_BUFFER_SELECT__FRONT_BUFFER (0 << 4)
+#define LFBMODE__LINEAR_FRAME_BUFFER__WRITE_BUFFER_SELECT__BACK_BUFFER (1 << 4)
+#define LFBMODE__LINEAR_FRAME_BUFFER__READ_BUFFER_SELECT__FRONT_BUFFER (0 << 6)
+#define LFBMODE__LINEAR_FRAME_BUFFER__READ_BUFFER_SELECT__BACK_BUFFER (1 << 6)
+#define LFBMODE__LINEAR_FRAME_BUFFER__ENABLE_PIXEL_PIPELINE_WRITES (1 << 8)
+#define LFBMODE__LINEAR_FRAME_BUFFER__RGBA_LANES__ARGB (0 << 9)
+#define LFBMODE__LINEAR_FRAME_BUFFER__RGBA_LANES__ABGR (1 << 9)
+#define LFBMODE__LINEAR_FRAME_BUFFER__RGBA_LANES__RGBA (2 << 9)
+#define LFBMODE__LINEAR_FRAME_BUFFER__RGBA_LANES__BGRA (3 << 9)
+#define LFBMODE__LINEAR_FRAME_BUFFER__WORD_SWAP_WRITES (1 << 11)
+#define LFBMODE__LINEAR_FRAME_BUFFER__BYTE_SWIZZLE_WRITES (1 << 12)
+#define LFBMODE__LINEAR_FRAME_BUFFER__Y_ORIGIN (1 << 13)
+#define LFBMODE__LINEAR_FRAME_BUFFER__WRITE_ACCESS_W_SELECT (1 << 14)
+#define LFBMODE__LINEAR_FRAME_BUFFER__WORD_SWAP_READS (1 << 15)
+#define LFBMODE__LINEAR_FRAME_BUFFER__BYTE_SWIZZLE_READS (1 << 16)
+
+#define CLIPLEFTRIGHT__RIGHT(n) (((n) & 0xfff) << 0)
+#define CLIPLEFTRIGHT__LEFT(n) (((n) & 0xfff) << 16)
+
+#define CLIPLOWYHIGHY__HIGH_Y(n) (((n) & 0xfff) << 0)
+#define CLIPLOWYHIGHY__LOW_Y(n) (((n) & 0xfff) << 16)
+
+#define NOPCMD__CLEAR_REGISTERS (1 << 0)
+#define NOPCMD__CLEAR_FBI_TRIANGLES_OUT (1 << 1)
+
+#define SWAPBUFFERCMD__SYNCHRONIZE_FRAME_BUFFER_SWAPPING_TO_VERTICAL_RETRACE (1 << 0)
+#define SWAPBUFFERCMD__SWAP_BUFFER_INTERVAL(n) (((n) & 0xff) << 1)
+#define SWAPBUFFERCMD__DISABLE_BUFFER_SWAPPING (1 << 9)
+
+#define FOGCOLOR__BLUE(n) (((n) & 0xff) << 0)
+#define FOGCOLOR__GREEN(n) (((n) & 0xff) << 8)
+#define FOGCOLOR__RED(n) (((n) & 0xff) << 16)
+
+#define ZACOLOR__DEPTH(n) (((n) & 0xffff) << 0)
+#define ZACOLOR__ALPHA(n) (((n) & 0xff) << 24)
+
+#define CHROMAKEY__BLUE(n) (((n) & 0xff) << 0)
+#define CHROMAKEY__GREEN(n) (((n) & 0xff) << 8)
+#define CHROMAKEY__RED(n) (((n) & 0xff) << 16)
+
+#define CHROMARANGE__BLUE(n) (((n) & 0xff) << 0)
+#define CHROMARANGE__GREEN(n) (((n) & 0xff) << 8)
+#define CHROMARANGE__RED(n) (((n) & 0xff) << 16)
+#define CHROMARANGE__BLUE_MODE__INCLUSIVE (0 << 24)
+#define CHROMARANGE__BLUE_MODE__EXCLUSIVE (1 << 24)
+#define CHROMARANGE__GREEN_MODE__INCLUSIVE (0 << 25)
+#define CHROMARANGE__GREEN_MODE__EXCLUSIVE (1 << 25)
+#define CHROMARANGE__RED_MODE__INCLUSIVE (0 << 26)
+#define CHROMARANGE__RED_MODE__EXCLUSIVE (1 << 26)
+#define CHROMARANGE__BLOCK_MODE__INTERSECTION (0 << 27)
+#define CHROMARANGE__BLOCK_MODE__UNION (1 << 27)
+#define CHROMARANGE__ENABLE (1 << 28)
+
+#define USERINTRCMD__GENERATE_USER_INTERRUPT (1 << 0)
+#define USERINTRCMD__WAIT_FOR_INTERRUPT_GENERATED_BY_USER_INTERRUPT (1 << 1)
+#define USERINTRCMD__USER_INTERRUPT_TAG(n) (((n) & 0xff) << 2)
+
+#define COLOR0__BLUE(n) (((n) & 0xff) << 0)
+#define COLOR0__GREEN(n) (((n) & 0xff) << 8)
+#define COLOR0__RED(n) (((n) & 0xff) << 16)
+#define COLOR0__ALPHA(n) (((n) & 0xff) << 24)
+
+#define COLOR1__BLUE(n) (((n) & 0xff) << 0)
+#define COLOR1__GREEN(n) (((n) & 0xff) << 8)
+#define COLOR1__RED(n) (((n) & 0xff) << 16)
+#define COLOR1__ALPHA(n) (((n) & 0xff) << 24)
+
+#define FBISWAPHISTORY__NUMBER_OF_VERTICAL_SYNCS(n) (((n) & 0xf) << 0)
+#define FBISWAPHISTORY__FRAME_N_1(n) (((n) & 0xf) << 4)
+#define FBISWAPHISTORY__FRAME_N_2(n) (((n) & 0xf) << 8)
+#define FBISWAPHISTORY__FRAME_N_3(n) (((n) & 0xf) << 12)
+#define FBISWAPHISTORY__FRAME_N_4(n) (((n) & 0xf) << 16)
+#define FBISWAPHISTORY__FRAME_N_5(n) (((n) & 0xf) << 20)
+#define FBISWAPHISTORY__FRAME_N_6(n) (((n) & 0xf) << 24)
+#define FBISWAPHISTORY__FRAME_N_7(n) (((n) & 0xf) << 28)
+
+#define FOGTABLE__DELTA_FOG_BLENDING_FACTOR_2N(n) (((n) & 0xff) << 0)
+#define FOGTABLE__FOG_BLENDING_FACTOR_2N(n) (((n) & 0xff) << 8)
+#define FOGTABLE__DELTA_FOG_BLENDING_FACTOR_2N1(n) (((n) & 0xff) << 16)
+#define FOGTABLE__FOG_BLENDING_FACTOR_2N1(n) (((n) & 0xff) << 24)
+
+#define VRETRACE__V_SYNC_OFF_COUNTER(n) (((n) & 0x1fff) << 0)
+
+#define HVRETRACE__V_SYNC_OFF_COUNTER(n) (((n) & 0x1fff) << 0)
+#define HVRETRACE__H_RETRACE_COUNTER(n) (((n) & 0x7ff) << 16)
+
+#define HSYNC__H_SYNC_ON(n) (((n) & 0x1ff) << 0)
+#define HSYNC__H_SYNC_OFF(n) (((n) & 0x7ff) << 16)
+
+#define VSYNC__V_SYNC_ON(n) (((n) & 0x1fff) << 0)
+#define VSYNC__V_SYNC_OFF(n) (((n) & 0x1fff) << 16)
+
+#define VIDEODIMENSIONS__X_WIDTH(n) (((n) & 0x7ff) << 0)
+#define VIDEODIMENSIONS__Y_HEIGHT(n) (((n) & 0x7ff) << 16)
+
+#define MAXRGBDELTA__BLUE(n) (((n) & 0xff) << 0)
+#define MAXRGBDELTA__GREEN(n) (((n) & 0xff) << 8)
+#define MAXRGBDELTA__RED(n) (((n) & 0xff) << 16)
+
+#define HBORDER__H_BACK_COLOR(n) (((n) & 0x1ff) << 0)
+#define HBORDER__H_FRONT_COLOR(n) (((n) & 0x1ff) << 16)
+
+#define VBORDER__V_BACK_COLOR(n) (((n) & 0x1ff) << 0)
+#define VBORDER__V_FRONT_COLOR(n) (((n) & 0x1ff) << 16)
+
+#define BORDERCOLOR__BLUE(n) (((n) & 0xff) << 0)
+#define BORDERCOLOR__GREEN(n) (((n) & 0xff) << 8)
+#define BORDERCOLOR__RED(n) (((n) & 0xff) << 16)
+
+#define FBIINIT0__VGA_PASSTHROUGH (1 << 0)
+#define FBIINIT0__CHUCK_GRAPHICS_RESET (1 << 1)
+#define FBIINIT0__CHUCK_FIFO_RESET (1 << 2)
+#define FBIINIT0__BYTE_SWIZZLE_INCOMING_REGISTER_WRITES (1 << 3)
+#define FBIINIT0__STALL_PCI_ENABLE_FOR_HIGH_WATER_MARK (1 << 4)
+#define FBIINIT0__PCI_FIFO_EMPTY_ENTRIES_LOW_WATER_MARK(n) (((n) & 0x1f) << 6)
+#define FBIINIT0__LINEAR_FRAME_BUFFER_ACCESSES_STORED_IN_MEMORY_FIFO (1 << 11)
+#define FBIINIT0__TEXTURE_MEMORY_ACCESSES_STORED_IN_MEMORY_FIFO (1 << 12)
+#define FBIINIT0__MEMORY_FIFO_ENABLE (1 << 13)
+#define FBIINIT0__MEMORY_FIFO_HIGH_WATER_MARK(n) (((n) & 0x7ff) << 14)
+#define FBIINIT0__MEMORY_FIFO_WRITE_BURST_HIGH_WATER_MARK(n) (((n) & 0x3f) << 25)
+
+#define FBIINIT1__PCI_DEVICE_FUNCTION_NUMBER (1 << 0)
+#define FBIINIT1__WAIT_STATE_CYCLES_FOR_PCI_WRITE_ACCESSES (1 << 1)
+#define FBIINIT1__ENABLE_LINEAR_FRAME_BUFFER_READS (1 << 3)
+#define FBIINIT1__NUMBER_OF_32X32_VIDEO_TILES_IN_HORIZONTAL_DIMENSION(n) (((n) & 0xf) << 4)
+#define FBIINIT1__VIDEO_TIMING_RESET (1 << 8)
+#define FBIINIT1__SOFTWARE_OVERRIDE_OF_HSYNC_VSYNC (1 << 9)
+#define FBIINIT1__SOFTWARE_OVERRIDE_HSYNC_VALUE (1 << 10)
+#define FBIINIT1__SOFTWARE_OVERRIDE_VSYNC_VALUE (1 << 11)
+#define FBIINIT1__SOFTWARE_BLANKING_ENABLE (1 << 12)
+#define FBIINIT1__DRIVE_VIDEO_TIMING_DATA_OUTPUTS (1 << 13)
+#define FBIINIT1__DRIVE_VIDEO_TIMING_BLANK_OUTPUTS (1 << 14)
+#define FBIINIT1__DRIVE_VIDEO_TIMING_HSYNC_VSYNC_OUTPUTS (1 << 15)
+#define FBIINIT1__DRIVE_VIDEO_TIMING_DCLK_OUTPUT (1 << 16)
+#define FBIINIT1__VIDEO_TIMING_VCLK_INPUT_SELECT (1 << 17)
+#define FBIINIT1__VID_CLK_2X_DELAY_SELECT__NO_DELAY (0 << 18)
+#define FBIINIT1__VID_CLK_2X_DELAY_SELECT__4NS (1 << 18)
+#define FBIINIT1__VID_CLK_2X_DELAY_SELECT__6NS (2 << 18)
+#define FBIINIT1__VID_CLK_2X_DELAY_SELECT__8NS (3 << 18)
+#define FBIINIT1__VIDEO_TIMING_VCLK_SOURCE_SELECT__VID_CLK_SLAVE (0 << 20)
+#define FBIINIT1__VIDEO_TIMING_VCLK_SOURCE_SELECT__VID_CLK_2X (1 << 20)
+#define FBIINIT1__VIDEO_TIMING_VCLK_SOURCE_SELECT__VID_CLK_2X_SEL (2 << 20)
+#define FBIINIT1__ENABLE_24_BITS_PER_PIXEL_VIDEO_OUTPUT (1 << 22)
+#define FBIINIT1__ENABLE_SCAN_LINE_INTERLEAVING (1 << 23)
+#define FBIINIT1__NUMBER_OF_32X32_VIDEO_TILES_IN_HORIZONTAL_DIMENSION_5 (1 << 24)
+#define FBIINIT1__ENABLE_VIDEO_EDGE_DETECTION_FILTERING (1 << 25)
+#define FBIINIT1__INVERT_VID_CLK_2X (1 << 26)
+#define FBIINIT1__VID_CLK_2X_SEL_DELAY_SELECT__NO_DELAY (0 << 27)
+#define FBIINIT1__VID_CLK_2X_SEL_DELAY_SELECT__4NS (1 << 27)
+#define FBIINIT1__VID_CLK_2X_SEL_DELAY_SELECT__6NS (2 << 27)
+#define FBIINIT1__VID_CLK_2X_SEL_DELAY_SELECT__8NS (3 << 27)
+#define FBIINIT1__VID_CLK_DELAY_SELECT__NO_DELAY (0 << 29)
+#define FBIINIT1__VID_CLK_DELAY_SELECT__4NS (1 << 29)
+#define FBIINIT1__VID_CLK_DELAY_SELECT__6NS (2 << 29)
+#define FBIINIT1__VID_CLK_DELAY_SELECT__8NS (3 << 29)
+#define FBIINIT1__DISABLE_FAST_READ_AHEAD_WRITE_TO_READ_AHEAD_READ_TURNAROUND (1 << 31)
+
+#define FBIINIT2__DISABLE_VIDEO_DITHER_SUBTRACTION (1 << 0)
+#define FBIINIT2__DRAM_BANKING_CONFIGURATION (1 << 1)
+#define FBIINIT2__TRIPLE_BUFFERING_ENABLE (1 << 4)
+#define FBIINIT2__ENABLE_FAST_RAS_READ_CYCLES (1 << 5)
+#define FBIINIT2__ENABLE_GENERATED_DRAM_OE_SIGNAL (1 << 6)
+#define FBIINIT2__ENABLE_FAST_READ_AHEAD_WRITE_TURNAROUND (1 << 7)
+#define FBIINIT2__ENABLE_PASS_THROUGH_DITHER_MODE (1 << 8)
+#define FBIINIT2__SWAP_BUFFER_ALGORITHM__DAC_VSYNC (0 << 9)
+#define FBIINIT2__SWAP_BUFFER_ALGORITHM__DAC_DATA (1 << 9)
+#define FBIINIT2__SWAP_BUFFER_ALGORITHM__PCI_FIFO_STALL (2 << 9)
+#define FBIINIT2__SWAP_BUFFER_ALGORITHM__SLI_SYNCIN_SYNCOUT (3 << 9)
+#define FBIINIT2__VIDEO_BUFFER_OFFSET(n) (((n) & 0x1ff) << 11)
+#define FBIINIT2__ENABLE_DRAM_BANKING (1 << 20)
+#define FBIINIT2__ENABLE_DRAM_READ_AHEAD_FIFO (1 << 21)
+#define FBIINIT2__REFRESH_ENABLE (1 << 22)
+#define FBIINIT2__REFRESH_LOAD_VALUE(n) (((n) & 0x1ff) << 23)
+
+#define FBIINIT3__TRIANGLE_REGISTER_ADDRESS_REMAPPING (1 << 0)
+#define FBIINIT3__VIDEO_FIFO_THRESHOLD(n) (((n) & 0x1f) << 1)
+#define FBIINIT3__DISABLE_TEXTURE_MAPPING (1 << 6)
+#define FBIINIT3__GENERIC_POWER_ON_STRAPPING_PINS(n) (((n) & 0x7) << 8)
+#define FBIINIT3__VGA_PASS_RESET_VALUE (1 << 11)
+#define FBIINIT3__HARDCODE_PCI_BASE_ADDRESS (1 << 12)
+#define FBIINIT3__FBI_TO_TREX_BUS_CLOCK_DELAY_SELECTIONS(n) (((n) & 0xf) << 13)
+#define FBIINIT3__TREX_TO_FBI_BUS_FIFO_THRESHOLD(n) (((n) & 0x1f) << 17)
+#define FBIINIT3__Y_ORIGIN_SWAP_SUBTRACTION_VALUE(n) (((n) & 0x3ff) << 22)
+
+#define FBIINIT4__WAIT_STATE_CYCLES_FOR_PCI_READ_ACCESSES (1 << 0)
+#define FBIINIT4__ENABLE_READ_AHEAD_LOGIC_FOR_LINEAR_FRAME_BUFFER_READS (1 << 1)
+#define FBIINIT4__MEMORY_FIFO_LOW_WATER_MARK_FOR_PCI_FIFO(n) (((n) & 0x3f) << 2)
+#define FBIINIT4__MEMORY_FIFO_ROW_START(n) (((n) & 0x3ff) << 8)
+#define FBIINIT4__MEMORY_FIFO_ROW_ROLLOVER(n) (((n) & 0x3ff) << 18)
+#define FBIINIT4__VIDEO_CLOCKING_DELAY_CONTROL(n) (((n) & 0x7) << 29)
+
+#define FBIINIT5__DISABLE_PCI_STOP_FUNCTIONALITY (1 << 0)
+#define FBIINIT5__PCI_SLAVE_DEVICE_IS_66MHZ_CAPABLE (1 << 1)
+#define FBIINIT5__DAC_DATA_OUTPUT_WIDTH (1 << 2)
+#define FBIINIT5__DAC_DATA_OUTPUT_VALUE_GPIO_0 (1 << 3)
+#define FBIINIT5__DAC_DATA_CONTROL_4 (1 << 4)
+#define FBIINIT5__GENERIC_POWER_ON_STRAPPING_PINS(n) (((n) & 0xf) << 5)
+#define FBIINIT5__COLOR_AUX_BUFFER_MEMORY_ALLOCATION__2_COLOR_BUFFERS_1_AUX_BUFFER (0 << 9)
+#define FBIINIT5__COLOR_AUX_BUFFER_MEMORY_ALLOCATION__3_COLOR_BUFFERS_0_AUX_BUFFERS (1 << 9)
+#define FBIINIT5__COLOR_AUX_BUFFER_MEMORY_ALLOCATION__3_COLOR_BUFFERS_1_AUX_BUFFER (2 << 9)
+#define FBIINIT5__DRIVE_VID_CLK_SLAVE_OUTPUT (1 << 11)
+#define FBIINIT5__DRIVE_DAC_DATA_OUTPUT (1 << 12)
+#define FBIINIT5__VIDEO_TIMING_VCLK_INPUT_SELECT (1 << 13)
+#define FBIINIT5__MULTI_CVG_CONFIGURATION_DETECT (1 << 14)
+#define FBIINIT5__SYNCHRONIZE_READS_FROM_HRETRACE_AND_VRETRACE (1 << 15)
+#define FBIINIT5__HORIZONTAL_BORDER_COLOR_ENABLE_RIGHT_EDGE (1 << 16)
+#define FBIINIT5__HORIZONTAL_BORDER_COLOR_ENABLE_LEFT_EDGE (1 << 17)
+#define FBIINIT5__VERTICAL_BORDER_COLOR_ENABLE_BOTTOM_EDGE (1 << 18)
+#define FBIINIT5__VERTICAL_BORDER_COLOR_ENABLE_TOP_EDGE (1 << 19)
+#define FBIINIT5__SCAN_DOUBLE_VIDEO_OUT_IN_HORIZONTAL_DIMENSION (1 << 20)
+#define FBIINIT5__SCAN_DOUBLE_VIDEO_OUT_IN_VERTICAL_DIMENSION (1 << 21)
+#define FBIINIT5__ENABLE_GAMMA_CORRECTION_FOR_16_BIT_VIDEO_OUTPUT (1 << 22)
+#define FBIINIT5__INVERT_DAC_HSYNC_OUTPUT_TO_DAC (1 << 23)
+#define FBIINIT5__INVERT_DAC_VSYNC_OUTPUT_TO_DAC (1 << 24)
+#define FBIINIT5__ENABLE_FULL_24_BIT_DAC_DATA_OUTPUT (1 << 25)
+#define FBIINIT5__INTERLACED_VIDEO_OUTPUT (1 << 26)
+#define FBIINIT5__DAC_DATA_CONTROL_27 (1 << 27)
+#define FBIINIT5__TRIANGLE_RASTERIZATION_UNIT_MODE(n) (((n) & 0x3) << 30)
+
+#define FBIINIT6__VIDEO_WINDOW_ACTIVE_COUNTER(n) (((n) & 0x7) << 0)
+#define FBIINIT6__VIDEO_WINDOW_DRAG_COUNTER(n) (((n) & 0x1f) << 3)
+#define FBIINIT6__SCANLINE_INTERLEAVE_SYNC_MASTER (1 << 8)
+#define FBIINIT6__DAC_DATA_OUTPUT_VALUE_GPIO_2(n) (((n) & 0x3) << 9)
+#define FBIINIT6__DAC_DATA_OUTPUT_VALUE_GPIO_3(n) (((n) & 0x3) << 11)
+#define FBIINIT6__SLI_SYNCIN_OUTPUT_VALUE(n) (((n) & 0x3) << 13)
+#define FBIINIT6__SLI_SYNCOUT_OUTPUT_VALUE(n) (((n) & 0x3) << 15)
+#define FBIINIT6__DAC_RD_OUTPUT_VALUE(n) (((n) & 0x3) << 17)
+#define FBIINIT6__DAC_WR_OUTPUT_VALUE(n) (((n) & 0x3) << 19)
+#define FBIINIT6__PCI_FIFO_EMPTY_ENTRIES_LOW_WATER_MARK(n) (((n) & 0x7f) << 21)
+#define FBIINIT6__VGA_PASS_N_OUTPUT_VALUE(n) (((n) & 0x3) << 28)
+#define FBIINIT6__NUMBER_OF_32X32_VIDEO_TILES_IN_HORIZONTAL_DIMENSION (1 << 30)
+
+#define FBIINIT7__CMDFIFO_ENABLE (1 << 8)
+#define FBIINIT7__CMDFIFO_OFFSCREEN_MEMORY_STORE (1 << 9)
+#define FBIINIT7__DISABLE_INTERNAL_CMDFIFO_HOLE_COUNTING_LOGIC (1 << 10)
+#define FBIINIT7__CMDFIFO_READ_FETCH_THRESHOLD(n) (((n) & 0x1f) << 11)
+#define FBIINIT7__SYNCHRONIZE_WRITES_TO_CMDFIFO_REGISTERS (1 << 16)
+#define FBIINIT7__SYNCHRONIZE_READS_TO_CMDFIFO_REGISTERS (1 << 17)
+#define FBIINIT7__RESET_PCI_PACKER (1 << 18)
+#define FBIINIT7__ENABLE_CHROMAKEY_AND_CHROMARANGE_WRITES (1 << 19)
+#define FBIINIT7__CMDFIFO_PCI_TIMEOUT_COUNTER_VALUE(n) (((n) & 0x7f) << 20)
+#define FBIINIT7__ENABLE_BURSTING_OF_CONSECUTIVE_TEXTURE_MEMORY_WRITES (1 << 27)
+
+#define CMDFIFOBASEADDR__CMDFIFO_BASE_ADDRESS(n) (((n) & 0x3ff) << 0)
+#define CMDFIFOBASEADDR__CMDFIFO_END_ADDRESS(n) (((n) & 0x3ff) << 16)
+
+#define CLUTDATA__BLUE(n) (((n) & 0xff) << 0)
+#define CLUTDATA__GREEN(n) (((n) & 0xff) << 8)
+#define CLUTDATA__RED(n) (((n) & 0xff) << 16)
+#define CLUTDATA__INDEX(n) (((n) & 0x3f) << 24)
+
+#define DACDATA__WRITE_DATA(n) (((n) & 0xff) << 0)
+#define DACDATA__ADDRESS_2_0(n) (((n) & 0x7) << 8)
+#define DACDATA__READ_COMMAND (1 << 11)
+#define DACDATA__ADDRESS_4_3(n) (((n) & 0x3) << 12)
+
+#define SSETUPMODE__SETUP_RED_GREEN_BLUE (1 << 0)
+#define SSETUPMODE__SETUP_ALPHA (1 << 1)
+#define SSETUPMODE__SETUP_Z (1 << 2)
+#define SSETUPMODE__SETUP_WB (1 << 3)
+#define SSETUPMODE__SETUP_W0 (1 << 4)
+#define SSETUPMODE__SETUP_S0_AND_T0 (1 << 5)
+#define SSETUPMODE__SETUP_W1 (1 << 6)
+#define SSETUPMODE__SETUP_S1_AND_T1 (1 << 7)
+#define SSETUPMODE__STRIP_MODE (1 << 16)
+#define SSETUPMODE__ENABLE_CULLING (1 << 17)
+#define SSETUPMODE__CULLING_SIGN (1 << 18)
+#define SSETUPMODE__DISABLE_PING_PONG_SIGN_CORRECTION (1 << 19)
+
+#define SARGB__ALPHA(n) (((n) & 0xff) << 24)
+#define SARGB__RED(n) (((n) & 0xff) << 16)
+#define SARGB__GREEN(n) (((n) & 0xff) << 8)
+#define SARGB__BLUE(n) (((n) & 0xff) << 0)
+
+#define TEXTUREMODE__ENABLE_PERSPECTIVE_CORRECTION_FOR_S_AND_T (1 << 0)
+#define TEXTUREMODE__TEXTURE_MINIFICATION_FILTER (1 << 1)
+#define TEXTUREMODE__TEXTURE_MAGNIFICATION_FILTER (1 << 2)
+#define TEXTUREMODE__CLAMP_WHEN_W_IS_NEGATIVE (1 << 3)
+#define TEXTUREMODE__ENABLE_LEVEL_OF_DETAIL_DITHERING (1 << 4)
+#define TEXTUREMODE__NARROW_CHANNEL_COMPRESSED (1 << 5)
+#define TEXTUREMODE__CLAMP_S_ITERATOR (1 << 6)
+#define TEXTUREMODE__CLAMP_T_ITERATOR (1 << 7)
+#define TEXTUREMODE__TEXTURE_FORMAT(n) (((n) & 0xf) << 8)
+#define TEXTUREMODE__TEXTURE_COLOR__ZERO_OTHER (1 << 12)
+#define TEXTUREMODE__TEXTURE_COLOR__SUBTRACT_COLOR_LOCAL (1 << 13)
+#define TEXTUREMODE__TEXTURE_COLOR__MUX_SELECT(n) (((n) & 0x7) << 14)
+#define TEXTUREMODE__TEXTURE_COLOR__REVERSE_BLEND (1 << 17)
+#define TEXTUREMODE__TEXTURE_COLOR__ADD_COLOR_LOCAL (1 << 18)
+#define TEXTUREMODE__TEXTURE_COLOR__ADD_ALPHA_LOCAL (1 << 19)
+#define TEXTUREMODE__TEXTURE_COLOR__INVERT_OUTPUT (1 << 20)
+#define TEXTUREMODE__TEXTURE_ALPHA__ZERO_OTHER (1 << 21)
+#define TEXTUREMODE__TEXTURE_ALPHA__SUBTRACT_COLOR_LOCAL (1 << 22)
+#define TEXTUREMODE__TEXTURE_ALPHA__MUX_SELECT(n) (((n) & 0x7) << 23)
+#define TEXTUREMODE__TEXTURE_ALPHA__REVERSE_BLEND (1 << 26)
+#define TEXTUREMODE__TEXTURE_ALPHA__ADD_COLOR_LOCAL (1 << 27)
+#define TEXTUREMODE__TEXTURE_ALPHA__ADD_ALPHA_LOCAL (1 << 28)
+#define TEXTUREMODE__TEXTURE_ALPHA__INVERT_OUTPUT (1 << 29)
+#define TEXTUREMODE__ENABLE_TRILINEAR_TEXTURE_MAPPING (1 << 30)
+#define TEXTUREMODE__SEQUENTIAL_8_BIT_DOWNLOAD (1 << 31)
+
+#define TLOD__MINIMUM_LOD(n) (((n) & 0x3f) << 0)
+#define TLOD__MAXIMUM_LOD(n) (((n) & 0x3f) << 6)
+#define TLOD__LOD_BIAS(n) (((n) & 0x3f) << 12)
+#define TLOD__LOD_ODD (1 << 18)
+#define TLOD__TEXTURE_IS_SPLIT (1 << 19)
+#define TLOD__S_DIMENSION_IS_WIDER (1 << 20)
+#define TLOD__ASPECT_RATIO(n) (((n) & 0x3) << 21)
+#define TLOD__LOD_ZERO_FRAC (1 << 23)
+#define TLOD__USE_MULTIPLE_TEXBASEADDR_REGISTERS (1 << 24)
+#define TLOD__BYTE_SWAP_INCOMING_TEXTURE_DATA (1 << 25)
+#define TLOD__SHORT_SWAP_INCOMING_TEXTURE_DATA (1 << 26)
+#define TLOD__ENABLE_RAW_DIRECT_TEXTURE_MEMORY_WRITES (1 << 27)
+
+#define TDETAIL__DETAIL_TEXTURE_LOD_CLAMP(n) (((n) & 0xff) << 0)
+#define TDETAIL__DETAIL_TEXTURE_BIAS(n) (((n) & 0x3f) << 8)
+#define TDETAIL__DETAIL_TEXTURE_SCALE_SHIFT_LEFT(n) (((n) & 0x7) << 14)
+#define TDETAIL__RGB_TEXTURE_MINIFICATION_FILTER (1 << 17)
+#define TDETAIL__RGB_TEXTURE_MAGNIFICATION_FILTER (1 << 18)
+#define TDETAIL__ALPHA_TEXTURE_MINIFICATION_FILTER (1 << 19)
+#define TDETAIL__ALPHA_TEXTURE_MAGNIFICATION_FILTER (1 << 20)
+#define TDETAIL__TMINFILTER_AND_TMAGFILTER (1 << 21)
diff --git a/voodoo2_bits.ods b/voodoo2_bits.ods
new file mode 100644
index 0000000..91f7abe
Binary files /dev/null and b/voodoo2_bits.ods differ
diff --git a/voodoo2_bits.txt b/voodoo2_bits.txt
new file mode 100644
index 0000000..3799159
--- /dev/null
+++ b/voodoo2_bits.txt
@@ -0,0 +1,1314 @@
+status
+Bit
+5:0
+6
+7
+8
+9
+11:10
+27:12
+30:28
+31
+Description
+PCI FIFO freespace (0x3f=FIFO empty). Default is 0x3f.
+Vertical retrace (0=Vertical retrace active, 1=Vertical retrace inactive). Default is 1.
+Chuck graphics engine busy (0=engine idle, 1=engine busy). Default is 0.
+Bruce busy (0=engine idle, 1=engine busy). Default is 0.
+Voodoo2 Graphics busy (0=idle, 1=busy). Default is 0.
+Displayed buffer (0=buffer 0, 1=buffer 1, 2=auxiliary buffer, 3=reserved). Default is 0.
+Memory FIFO freespace (0xffff=FIFO empty). Default is 0xffff.
+Swap Buffers Pending. Default is 0x0.
+reserved
+
+intrCtrl
+Bit
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+19:12
+30:20
+31
+Description
+Horizontal Sync (rising edge) interrupts enable (1=enable). Default is 0.
+Horizontal Sync (falling edge) interrupts enable (1=enable). Default is 0.
+Vertical Sync (rising edge) interrupts enable (1=enable). Default is 0.
+Vertical Sync (falling edge) interrupts enable (1=enable). Default is 0.
+PCI FIFO Full interrupts enable (1=enable). Default is 0.
+User Interrupt Command interrupts enable (1=enable). Default is 0.
+Horizontal Sync (rising edge) interrupt generated (1=interrupt generated).
+Horizontal Sync (falling edge) interrupt generated (1=interrupt generated).
+Vertical Sync (rising edge) interrupt generated (1=interrupt generated).
+Vertical Sync (falling edge) interrupt generated (1=interrupt generated).
+PCI FIFO Full interrupt generated (1=interrupt generated).
+User Interrupt Command interrupt generated (1=interrupt generated).
+User Interrupt Command Tag. Read only.
+reserved
+External pin pci_inta value, active low (0=PCI interrupt is active, 1=PCI interrupt is inactive)
+
+vertexAx, vertexAy, vertexBx, vertexBy, vertexCx, vertexCy
+Bit
+15:0
+Description
+Vertex coordinate information (fixed point two’s complement 12.4 format)
+
+fvertexAx, fvertexAy, fvertexBx, fvertexBy, fvertexCx, fvertexCy
+Bit
+31:0
+Description
+Vertex coordinate information (IEEE 32-bit single-precision floating point format)
+
+startR, startG, startB, startA
+Bit
+23:0
+Description
+Starting Vertex-A Color information (fixed point two’s complement 12.12 format)
+
+fstartR, fstartG, fstartB, fstartA
+Bit
+31:0
+Description
+Starting Vertex-A Color information (IEEE 32-bit single-precision floating point format)
+
+startZ
+Bit
+31:0
+Description
+Starting Vertex-A Z information (fixed point two’s complement 20.12 format)
+
+fstartZ
+Bit
+31:0
+Description
+Starting Vertex-A Z information (IEEE 32-bit single-precision floating point format)
+
+startS, startT
+Bit
+31:0
+Description
+Starting Vertex-A Texture coordinates (fixed point two’s complement 14.18 format)
+
+fstartS, fstartT
+Bit
+31:0
+Description
+Starting Vertex-A Texture coordinates (IEEE 32-bit single-precision floating point format)
+
+startW
+Bit
+31:0
+Description
+Starting Vertex-A W information (fixed point two’s complement 2.30 format)
+
+fstartW
+Bit
+31:0
+Description
+Starting Vertex-A W information (IEEE 32-bit single-precision floating point format)
+
+dRdX, dGdX, dBdX, dAdX
+Bit
+23:0
+Description
+Change in color with respect to X (fixed point two’s complement 12.12 format)
+
+fdRdX, fdGdX, fdBdX, fdAdX
+Bit
+31:0
+Description
+Change in color with respect to X (IEEE 32-bit single-precision floating point format)
+
+dZdX
+Bit
+31:0
+Description
+Change in Z with respect to X (fixed point two’s complement 20.12 format)
+
+fdZdX
+Bit
+31:0
+Description
+Change in Z with respect to X (IEEE 32-bit single-precision floating point format)
+
+dSdX, dTdX
+Bit
+31:0
+Description
+Change in S and T with respect to X (fixed point two’s complement 14.18 format)
+
+fdSdX, fdTdX
+Bit
+31:0
+Description
+Change in Z with respect to X (IEEE 32-bit single-precision floating point format)
+
+dWdX
+Bit
+31:0
+Description
+Change in W with respect to X (fixed point two’s complement 2.30 format)
+
+fdWdX
+Bit
+31:0
+Description
+Change in W with respect to X (IEEE 32-bit single-precision floating point format)
+
+dRdY, dGdY, dBdY, dAdY
+Bit
+23:0
+Description
+Change in color with respect to Y (fixed point two’s complement 12.12 format)
+
+fdRdY, fdGdY, fdBdY, fdAdY
+Bit
+31:0
+Description
+Change in color with respect to Y (IEEE 32-bit single-precision floating point format)
+
+dZdY
+Bit
+31:0
+Description
+Change in Z with respect to Y (fixed point two’s complement 20.12 format)
+
+fdZdY
+Bit
+31:0
+Description
+Change in Z with respect to Y (IEEE 32-bit single-precision floating point format)
+
+dSdY, dTdY
+Bit
+31:0
+Description
+Change in S and T with respect to Y (fixed point two’s complement 14.18 format)
+
+fdSdY, fdTdY
+Bit
+31:0
+Description
+Change in Z with respect to Y (IEEE 32-bit single-precision floating point format)
+
+dWdY
+Bit
+31:0
+Description
+Change in W with respect to Y (fixed point two’s complement 2.30 format)
+
+fdWdY
+Bit
+31:0
+Description
+Change in W with respect to Y (IEEE 32-bit single-precision floating point format)
+
+triangleCMD
+Bit
+31
+Description
+Sign of the area of the triangle to be rendered
+
+ftriangleCMD
+Bit
+31
+Description
+Sign of the area of the triangle to be rendered (IEEE 32-bit single-precision floating point format)
+
+fbzColorPath
+Bit
+1:0
+3:2
+4
+6:5
+7
+8
+9
+12:10
+13
+14
+15
+16
+17
+18
+21:19
+22
+23
+24
+25
+26
+27
+28
+29
+Description
+RGB Select (0=Iterated RGB, 1=Bruce Color Output, 2=Color1 RGB, 3=Reserved)
+Alpha Select (0=Iterated A, 1=Bruce Alpha Output, 2=Color1 Alpha, 3=Reserved)
+Color Combine Unit control (cc_localselect mux control: 0=iterated RGB, 1=Color0 RGB)
+Alpha Combine Unit control (cca_localselect mux control: 0=iterated alpha, 1=Color0 alpha, 2=clamped iterated Z, 3=clamped iterated W)
+Color Combine Unit control (cc_localselect_override mux control: 0=cc_localselect, 1=Texture alpha bit(7))
+Color Combine Unit control (cc_zero_other mux control: 0=c_other, 1=zero)
+Color Combine Unit control (cc_sub_clocal mux control: 0=zero, 1=c_local)
+Color Combine Unit control (cc_mselect mux control: 0=zero, 1=c_local, 2=a_other, 3=a_local, 4=texture alpha, 5=texture RGB, 6-7=reserved)
+Color Combine Unit control (cc_reverse_blend control)
+Color Combine Unit control (cc_add_clocal control)
+Color Combine Unit control (cc_add_alocal control)
+Color Combine Unit control (cc_invert_output control)
+Alpha Combine Unit control (cca_zero_other mux control: 0=a_other, 1=zero)
+Alpha Combine Unit control (cca_sub_clocal mux control: 0=zero, 1=a_local)
+Alpha Combine Unit control (cca_mselect mux control: 0=zero, 1=a_local, 2=a_other, 3=a_local, 4=texture alpha, 5-7=reserved)
+Alpha Combine Unit control (cca_reverse_blend control)
+Alpha Combine Unit control (cca_add_clocal control)
+Alpha Combine Unit control (cca_add_alocal control)
+Alpha Combine Unit control (cca_invert_output control)
+Parameter Adjust (1=adjust parameters for subpixel correction)
+Enable Texture Mapping (1=enable)
+Enable RGBA, Z, and W parameter clamping (1=enable)
+Enable anti-aliasing (1=enable)* (not implemented in Alpha version)
+
+fogMode
+Bit
+0
+1
+2
+3
+4
+5
+6
+7
+Description
+Enable fog (1=enable)
+Fog Unit control (fogadd control: 0=fogColor, 1=zero)
+Fog Unit control (fogmult control: 0=Color Combine Unit RGB, 1=zero)
+Fog Unit control (fogalpha control)
+Fog Unit control (fogz control)
+Fog Unit control (fogconstant control: 0=fog multiplier output, 1=fogColor)
+Fog Unit control (fogdither control, dither the fog blending component)
+Fog Unit control (fogzones control, enable signed fog delta)
+
+alphaMode
+Bit
+0
+3:1
+4
+7:5
+11:8
+15:12
+19:16
+23:20
+31:24
+Description
+Enable alpha function (1=enable)
+Alpha function (see table below)
+Enable alpha blending (1=enable)
+reserved
+Source RGB alpha blending factor (see table below)
+Destination RGB alpha blending factor (see table below)
+Source alpha-channel alpha blending factor (see table below)
+Destination alpha-channel alpha blending factor (see table below)
+Alpha reference value
+
+fbzMode
+Bit
+0
+1
+2
+3
+4
+7:5
+8
+9
+10
+11
+12
+13
+15:14
+16
+17
+18
+19
+20
+21
+Description
+Enable clipping rectangle (1=enable)
+Enable chroma-keying (1=enable)
+Enable stipple register masking (1=enable)
+Floating point depth buffer Select (0=Use integer Z-value for depth buffering, 1=Use floating point value for depth buffering [either Z or W, controlled by fbzMode bit(21)])
+Enable depth-buffering (1=enable)
+Depth-buffer function (see table below)
+Enable dithering (1=enable)
+RGB buffer write mask (0=disable writes to RGB buffer)
+Depth/alpha buffer write mask (0=disable writes to depth/alpha buffer)
+Dither algorithm (0=4x4 ordered dither, 1=2x2 ordered dither)
+Enable Stipple pattern masking (1=enable)
+Enable Alpha-channel mask (1=enable alpha-channel masking)
+Draw buffer (0=Front Buffer, 1=Back Buffer, 2-3=Reserved)
+Enable depth-biasing (1=enable)
+Rendering commands Y origin (0=top of screen is origin, 1=bottom of screen is origin)
+Enable alpha planes (1=enable)
+Enable alpha-blending dither subtraction (1=enable)
+Depth buffer source compare select (0=normal operation, 1=zaColor[15:0])
+Depth float select (0=iterated W is used for floating point depth buffering, 1=iterated Z is used for floating point depth buffering)
+
+lfbMode
+Bit
+3:0
+5:4
+7:6
+8
+10:9
+11
+12
+13
+14
+15
+16
+Description
+Linear frame buffer write format (see table below)
+Linear frame buffer write buffer select (0=front buffer, 1=back buffer, 2-3=reserved).
+Linear frame buffer read buffer select (0=front buffer, 1=back buffer, 2=depth/alpha buffer, 3=reserved).
+Enable Voodoo2 Graphics pixel pipeline-processed linear frame buffer writes (1=enable)
+Linear frame buffer RGBA lanes (see tables below)
+16-bit word swap linear frame buffer writes (1=enable)
+Byte swizzle linear frame buffer writes (1=enable)
+LFB access Y origin (0=top of screen is origin, 1=bottom of screen is origin)
+Linear frame buffer write access W select (0=LFB selected, 1=zacolor[15:0]).
+16-bit word Swap linear frame buffer reads (1=enable)
+Byte swizzle linear frame buffer reads (1=enable)
+
+clipLeftRight
+Bit
+11:0
+15:12
+27:16
+31:28
+Description
+Unsigned integer specifying right clipping rectangle edge
+reserved
+Unsigned integer specifying left clipping rectangle edge
+reserved
+
+clipLowYHighY Register
+Bit
+11:0
+15:12
+27:16
+31:28
+Description
+Unsigned integer specifying high Y clipping rectangle edge
+reserved
+Unsigned integer specifying low Y clipping rectangle edge
+reserved
+
+nopCMD
+Bit
+0
+1
+Description
+Clear fbiPixelsIn, fbiChromaFail, fbiZfuncFail, fbiAfuncFail, and fbiPixelsOut registers (1=clear registers)
+Clear fbiTrianglesOut register (1=clear register)
+
+swapbufferCMD
+Bit
+0
+8:1
+9
+Description
+Synchronize frame buffer swapping to vertical retrace (1=enable)
+Swap buffer interval
+Disable buffer swapping (1=do not swap buffers)
+
+fogColor
+Bit
+7:0
+15:8
+23:16
+31:24
+Description
+Fog Color Blue
+Fog Color Green
+Fog Color Red
+reserved
+
+zaColor
+Bit
+15:0
+23:16
+31:24
+Description
+Constant Depth
+reserved
+Constant Alpha
+
+chromaKey
+Bit
+7:0
+15:8
+23:16
+31:24
+Description
+Chroma-key Blue
+Chroma-key Green
+Chroma-key Red
+reserved
+
+chromaRange
+Bit
+7:0
+15:8
+23:16
+24
+25
+26
+27
+28
+31:29
+Description
+Chroma-Range Blue Upper Limit
+Chroma-Range Green Upper Limit
+Chroma-Range Red Upper Limit
+Chroma-Range Blue Mode (0=inclusive; 1=exclusive)
+Chroma-Range Green Mode (0=inclusive; 1=exclusive)
+Chroma-Range Red Mode (0=inclusive; 1=exclusive)
+Chroma-Range Block Mode (0=intersection; 1=union)
+Chroma-Range Enable (0=disable; 1=enable)
+reserved
+
+userIntrCMD
+Bit
+0
+1
+9:2
+Description
+Generate USERINTERRUPT interrupt (1=generate interrupt)
+Wait for interrupt generated by USERINTERRUPT (visible in intrCtrl bit(11)) to be cleared before continuing (1=stall graphics engine until interrupt is cleared)
+User interrupt Tag
+
+stipple
+Bit
+31:0
+Description
+stipple value
+
+color0
+Bit
+7:0
+15:8
+23:16
+31:24
+Description
+Constant Color Blue
+Constant Color Green
+Constant Color Red
+Constant Color Alpha
+
+color1
+Bit
+7:0
+15:8
+23:16
+31:24
+Description
+Constant Color Blue
+Constant Color Green
+Constant Color Red
+Constant Color Alpha
+
+fbiTrianglesOut
+Bit
+23:0
+Description
+Rendered triangles (total number of triangles rendered by the Voodoo2 Graphics triangle rendering engine)
+
+fbiPixelsIn
+Bit
+23:0
+Description
+Pixel Counter (number of pixels processed by Voodoo2 Graphics triangle engine)
+
+fbiChromaFail
+Bit
+23:0
+Description
+Pixel Counter (number of pixels failed chroma-key test)
+
+fbiZfuncFail
+Bit
+23:0
+Description
+Pixel Counter (number of pixels failed Z test)
+
+fbiAfuncFail
+Bit
+23:0
+Description
+Pixel Counter (number of pixels failed Alpha test)
+
+fbiPixelsOut
+Bit
+23:0
+Description
+Pixel Counter (number of pixels drawn to color buffer)
+
+fbiSwapHistory
+Bit
+3:0
+7:4
+11:8
+15:12
+19:16
+23:20
+27:24
+31:28
+Description
+Number of vertical syncs between the second most recently completed swap command and the most recently completed swap command, or the value 0xf, whichever is less for Frame N.
+Vertical sync swapbuffer history for Frame N-1
+Vertical sync swapbuffer history for Frame N-2
+Vertical sync swapbuffer history for Frame N-3
+Vertical sync swapbuffer history for Frame N-4
+Vertical sync swapbuffer history for Frame N-5
+Vertical sync swapbuffer history for Frame N-6
+Vertical sync swapbuffer history for Frame N-7
+
+fogTable
+Bit
+7:0
+15:8
+23:16
+31:24
+Description
+FogTable[2n] ∆Fog blending factor
+FogTable[2n] Fog blending factor
+FogTable[2n+1] ∆Fog blending factor
+FogTable[2n+1] Fog blending factor
+
+vRetrace
+Bit
+12:0
+Description
+internal vSyncOff counter value (read only)
+
+hvRetrace
+Bit
+12:0
+15:13
+26:16
+Description
+internal vSyncOff counter value (read only)
+reserved
+internal hRetrace counter value (read only)
+
+hSync
+Bit
+8:0
+15:7
+26:16
+Description
+Horizontal sync on (internal hSyncOn register)
+reserved
+Horizontal sync off (internal hSyncOff register)
+
+vSync
+Bit
+12:0
+15:12
+28:16
+Description
+Vertical sync on (internal vSyncOn register)
+reserved
+Vertical sync off (internal vSyncOff register)
+
+videoDimensions
+Bit
+10:0
+15:10
+26:16
+Description
+X (width) dimension (internal xWidth register)
+reserved
+Y (height) dimension (internal yHeight register)
+
+maxRgbDelta
+Bit
+7:0
+15:8
+23:16
+Description
+Maximum blue delta for video filtering
+Maximum green delta for video filtering
+Maximum red delta for video filtering
+
+hBorder
+Bit
+8:0
+15:7
+24:16
+Description
+Horizontal backporch border color (internal hBackColor register)
+reserved
+Horizontal frontporch border color (internal hFrontColor register)
+
+vBorder
+Bit
+8:0
+15:7
+24:16
+Description
+Vertical backporch border color (internal vBackColor register)
+reserved
+Vertical frontporch border color (internal vFrontColor register)
+
+borderColor
+Bit
+7:0
+15:8
+23:16
+Description
+Video border color (blue)
+Video border color (green)
+Video border color (red)
+
+fbiInit0
+Bit
+0
+1
+2
+3
+4
+5
+10:6
+11
+12
+13
+24:14
+30:25
+31
+Description
+VGA passthrough (controls external pins vga_pass and vga_pass_n). Default value is the value of fb_addr_a[4] at the deassertion of pci_rst
+Chuck Graphics Reset (0=run, 1=reset). Default is 0.
+Chuck FIFO Reset (0=run, 1=reset). Default is 0. [resets PCI FIFO and the PCI data packer]
+Byte swizzle incoming register writes (1=enable). [Register byte data is swizzled if fbiInit0[3]=1 and pci_address[20]=1]. Default is 0.
+Stall PCI enable for High Water Mark (0=disable, 1=enable). Default is 1.
+reserved
+PCI FIFO Empty Entries Low Water Mark. Valid values are 0-31. Default is 0x10.
+Linear frame buffer accesses stored in memory FIFO (1=enable). Default is 0.
+Texture memory accesses stored in memory FIFO (1=enable). Default is 0.
+Memory FIFO enable (0=disable, 1=enable). Default is 0.
+Memory FIFO High Water Mark (bits [15:5]). Default is 0x0.
+Memory FIFO Write Burst High Water Mark (Range 0-63 -- must be greater than fbiinit4[7:2]). Default is 0x0.
+reserved
+
+fbiInit1
+Bit
+0
+1
+2
+3
+7:4
+8
+9
+10
+11
+12
+13
+14
+15
+16
+17
+19:18
+21:20
+22
+23
+24
+25
+26
+28:27
+30:29
+31
+Description
+PCI Device Function Number (0=pass-thru Voodoo2 Graphics only, 1=combo board with VGA dev #0 and Voodoo2 Graphics dev#1). Default value is the value of fb_addr_a[3] at the deassertion of pci_rst. Read only.
+Wait state cycles for PCI write accesses (0=no ws, 1=one ws). Default is 1.
+Reserved. Hardwired to 0. Read only. (old multi-CVG configuration detect)
+Enable linear frame buffer reads (1=enable). Default is 0. This bit is included so that Voodoo2 Graphics potentially won’t hang the system during random reads during powerup.
+Number of 32x32 video tiles in X/Horizontal dimension (bits 4:1). Default is 0x0. The 6-bit number of tiles in the X dimension is formed by {fbiInit1[24], fbiInit1[7:4], fbiInit6[30]}.
+Video Timing Reset (0=run, 1=reset). Default is 1.
+Software override of HSYNC/VSYNC (0=normal operation, 1=software override). Default is 0.
+Software override HSYNC value. Default is 0.
+Software override VSYNC value. Default is 0.
+Software blanking enable (0=normal operation, 1=Always blank monitor). Default is 1.
+Drive video timing data outputs (0=tristate, 1=drive outputs). Default is 0.
+Drive video timing blank output (0=tristate, 1=drive output). Default is 0.
+Drive video timing hsync/vsync outputs (0=tristate, 1=drive outputs). Default is 0.
+Drive video timing dclk output (0=tristate, 1=drive output). Default is 0.
+Video timing vclk input select (0=vid_clk_2x, 1=vid_clk_slave, 2=dac_data[16]). Input select is {fbiInit5[13], fbiInit1[17]}. Default is 0.
+Vid_clk_2x delay select (0=no delay, 1=4 ns, 2=6 ns, 3=8 ns). Default is 0.
+Video timing vclk source select (0=vid_clk_slave, 1=vid_clk_2x [divided by 2], 2,3=vid_clk_2x_sel). Default is 2.
+Enable 24 Bits-per-pixel video output (1=enable). Default is 0.
+Enable scan-line interleaving (1=enable). Default is 0.
+Number of 32x32 video tiles in X/Horizontal dimension (bit 5). Default is 0x0. The 6-bit number of tiles in the X dimension is formed by {fbiInit1[24], fbiInit1[7:4], fbiInit6[30]}.
+Enable video edge detection filtering (1=enable). Default is 0.
+Invert vid_clk_2x (0=pass-thru vid_clk_2x, 1=invert vid_clk_2x). Default is 0.
+Vid_clk_2x_sel delay select (0=no delay, 1=4 ns, 2=6 ns, 3=8 ns). Default is 0.
+Vid_clk delay select (0=no delay, 1=4 ns, 2=6 ns, 3=8 ns). Default is 0.
+Disable fast Read-Ahead-Write to Read-Ahead-Read turnaround (1=disable). Default is 0.
+
+fbiInit2
+Bit
+0
+1
+3:2
+4
+5
+6
+7
+8
+10:9
+19:11
+20
+21
+22
+31:23
+Description
+Disable video dither subtraction (1=disable). Default is 0x0.
+DRAM banking configuration (0=128Kx16 banking, 1=256Kx16 banking)
+reserved
+Triple Buffering Enable (1=enable). Default is 0x0. Bit included for binary compatibility with Voodoo Graphics only. Use fbiInit5[10:9] for buffer memory allocation.
+Enable fast RAS read cycles [bring RAS high early on reads] (1=enable). Default is 0x0.
+Enable generated dram OE signal (1=enable). Default is 0x1.
+Enable fast Read-Ahead -Write turnaround [bit(6) must be set]. (1=enable). Default is 0x0.
+Enable pass-through dither mode [For 8 BPP apps only] (1=enable). Default is 0x0.
+Swap buffer algorithm (0=based on dac_vsync, 1=based on dac_data[0], 2=based on pci_fifo_stall, 3=based on sli_syncin/sli_syncout). Default is 0x0.
+Video Buffer Offset (=150 for 640x480, =247 for 832x608). Default is 0x0.
+Enable DRAM banking (1=enable). Default is 0.
+Enable DRAM Read Ahead FIFO (1=enable). Default is 0x0.
+Refresh Enable (0=disable, 1=enable). Default is 0.
+Refresh_Load Value. (Internal 14-bit counter 5 LSBs are 0x0). Default is 0x100.
+
+fbiInit3
+Bit
+0
+5:1
+6
+7
+10:8
+11
+12
+16:13
+21:17
+31:22
+Description
+Triangle register address remapping (0=use normal register mapping, 1=use aliased register mapping). [Alternate register mapping is used when fbiInit3(0)=1 and pci_address[21]=1]. Default is 0x0.
+Video FIFO threshold. Default is 0x0.
+Disable Texture Mapping (0=normal, 1=disable Trex-to-Chuck Interface). Default is 0x0.
+reserved
+Generic power-on strapping pins. Default value is the value of fb_addr_a[2:0] at the deassertion of pci_rst. Read only
+VGA_PASS reset value. Default value is the value of fb_addr_a[4] at the deassertion of pci_rst. Read only
+Hardcode PCI base address 0x10000000 (1=enable, 0=normal operation). Default value is the value of fb_addr_a[5] at the deassertion of pci_rst
+fbi-to-trex bus clock delay selections (0-15). Default is 0x2.
+trex-to-fbi bus FIFO full threshold (0-31). Default is 0xf.
+Y Origin Swap subtraction value (10 bits). Default is 0x0.
+
+fbiInit4
+Bit
+0
+1
+7:2
+17:8
+27:18
+29
+31:29
+Description
+Wait state cycles for PCI read accesses (0=1 ws, 1=2 ws). Default is 1.
+Enable Read-ahead logic for linear frame buffer reads (1=enable). Default is 0.
+Memory FIFO low water mark for PCI FIFO. [Dump PCI FIFO contents to memory if PCI FIFO freespace falls below this level]. Default is 0.
+Memory FIFO row start (base row address for beginning of memory FIFO). Default is 0.
+Memory FIFO row rollover (row value when FIFO counters rollover). Default is 0.
+reserved
+Video clocking delay control (Chuck revision 5 only). Default is 0.
+
+fbiInit5
+Bit
+0
+1
+2
+3
+4
+8:5
+10:9
+11
+12
+13
+14
+15
+16
+17
+18
+19
+20
+21
+22
+23
+24
+25
+26
+27
+29:28
+31:30
+Description
+Disable pci_stop functionality (0=normal operation, 1=disable pci_stop). Default value is the value of fb_addr_b[0] at the deassertion of pci_rst.
+PCI Slave device is 66 MHz capable (0=33 MHz capable, 1=66 MHz capable). Default value is the value of fb_addr_b[1] at the deassertion of pci_rst. Read only.
+dac_data output width (0=16-bit, 1=24-bit). Default value is the value of fb_addr_b[2] at the deassertion of pci_rst. Read only.
+dac_data[17]/GPIO_0 output value (dac_data[17] is only driven when fb_addr_b[2]=0 at the deassertion of pci_rst). Default value is the value of fb_addr_b[3] at the deassertion of pci_rst.
+dac_data[18]/GPIO_1 control. (dac_data[18] is only driven when fb_addr_b[2]=0 at the deassertion of pci_rst). GPIO_1 is controlled by fbiInit5[4] and fbiInit5[27]. When fbiInit5[27]=0, then GPIO_1 is driven with the input value of dac_data[23]/GPIO_3. When fbiInit5[27]=1, then GPIO_1 is driven with the value specified by fbiInit5[4]. Default value of fbiInit5[4] is the value of fb_addr_b[4] at the deassertion of pci_rst.
+Generic power-on strapping pins. Default value is the value of fb_addr_b[8:5] at the deassertion of pci_rst. Read only
+Color/Aux buffer memory allocation (0=2 color buffers/1 aux buffer, 1=3 color buffers/0 aux buffers, 2=3 color buffers/1 aux buffer, 3=reserved). Default is 0x0.
+Drive vid_clk_slave output (0=tristate, 1=drive output). Default is 0.
+Drive dac_data[16] output (0=tristate, 1=drive output). Do not set to 1 when 24-bit dac data output is enabled (fbiInit5[25]=1).
+Video timing vclk input select (0=vid_clk_2x, 1=vid_clk_slave, 2=dac_data[16]). Input select is {fbiInit5[13], fbiInit1[17]}. Default is 0.
+Multi-CVG configuration detect (0=one Voodoo2 Graphics configuration, 1=two Voodoo2 Graphics configuration). Default value is the value of sli_syncin at the deassertion of pci_rst. Read only.
+Synchronize reads from hRetrace and vRetrace registers across video clock boundry (1=enable). Default is 0.
+Horizontal border color enable, right edge (1=enable). Default is 0.
+Horizontal border color enable, left edge (1=enable). Default is 0.
+Vertical border color enable, bottom edge (1=enable). Default is 0.
+Vertical border color enable, top edge (1=enable). Default is 0.
+Scan double video out in horizontal dimension (1=enable). Default is 0.
+Scan double video out in vertical dimension (1=enable). Default is 0.
+Enable gamma correction for 16-bit video output (1=enable). Default is 0.
+Invert dac_hsync output to dac (0= hsync is active low, 1=hsync is active high). Default is 0.
+Invert dac_vsync output to dac (0= vsync is active low, 1=vsync is active high). Default is 0.
+Enable full 24-bit dac_data[23:0] output (1=enable, 0=double-pump 24-bit data on dac_data[15:0]). Default is 0.
+Interlaced video output (1=enable). Default is 0.
+dac_data[18]/GPIO_1 control. (dac_data[18] is only driven when fb_addr_b[2]=0 at the deassertion of pci_rst). GPIO_1 is controlled by fbiInit5[4] and fbiInit5[27]. When fbiInit5[27]=0, then GPIO_1 is driven with the input value of dac_data[23]/GPIO_3. When fbiInit5[27]=1, then GPIO_1 is driven with the value specified by fbiInit5[4]. The default value of fbiInit5[27] is 0.
+reserved. Default is 0x0.
+Triangle rasterization unit mode control. Default is 0x0.
+
+fbiInit6
+Bit
+2:0
+7:3
+8
+10:9
+12:11
+14:13
+16:15
+18:17
+20:19
+27:21
+29:28
+30
+31
+Description
+Video window active counter. Used when swap algorithm is 0x1 or 0x2 (fbiInit2[10:9]=0x1 or 0x2). Default is 0x0.
+Video window drag counter. Used when swap algorithm is 0x1 or 0x2 (fbiInit2[10:9]=0x1 or 0x2). Default is 0x0.
+Scanline Interleave sync master (0=Slave, 1=Master). Used when swap algorithm is 0x3 (fbiInit2[10:9]=0x3). Default is 0x0.
+dac_data[22]/GPIO_2 output value (0,1=tristate, 2=drive 0, 3=drive 1). dac_data[22] is only controlled by fbiInit6[10:9] when fb_addr_b[2]=0 at the deassertion of pci_rst. Default value is 0x0. Reading fbiInit6[10] or fbiInit6[9] returns the logic value present on the dac_data[22] signal pin.
+dac_data[23]/GPIO_3 output value (0,1=tristate, 2=drive 0, 3=drive 1). dac_data[23] is only controlled by fbiInit6[12:11] when fb_addr_b[2]=0 at the deassertion of pci_rst. Default value is 0x0. Reading fbiInit6[12] or fbiInit6[11] returns the logic value present on the dac_data[23] signal pin.
+sli_syncin output value (0,1=tristate, 2=drive 0, 3=drive 1). Default is 0x0. Reading fbiInit6[15] or fbiInit6[14] returns the logic value present on the sli_syncin signal pin.
+sli_syncout output value (0=internal sli_syncout signal, 1=tristate, 2=drive 0, 3=drive 1). Default is 0x0. Reading fbiInit6[16] or fbiInit6[15] returns the logic value present on the sli_syncout signal pin.
+dac_rd output value (0=internal dac_rd signal, 1=tristate, 2=drive 0, 3=drive 1). Default is 0x0. Reading fbiInit6[18] or fbiInit6[17] returns the logic value present on the dac_rd signal pin.
+dac_wr output value (0=internal dac_wr signal, 1=tristate, 2=drive 0, 3=drive 1). Default is 0x0. Reading fbiInit6[20] or fbiInit6[19] returns the logic value present on the dac_wr signal pin.
+PCI FIFO Empty Entries Low Water Mark used to generate pci_fifo_rdy_n (output on dac_data[21]). Valid values are 0-64. Default is 0x0.
+vga_pass_n output value (0,1=internal vga_pass_n signal, 2=drive 0, 3=drive 1). Default is 0x0. vga_pass_n is only driven when fb_addr_b[2]=0 at the deassertion of pci_rst).
+Number of 32x32 video tiles in the X/Horizontal dimension (bit 0). Default is 0x0. The 6-bit number of tiles in the X dimension is formed by {fbiInit1[24], fbiInit1[7:4], fbiInit6[30]}.
+reserved
+
+fbiInit7
+Bit
+7:0
+8
+9
+10
+15:11
+16
+17
+18
+19
+26:20
+27
+Description
+Generic power-on strapping pins. Default value is the value of fb_data[63:56] at the deassertion of pci_rst. Read only
+CMDFIFO enable (1=enable). Default is 0. Note: fbiinit7 bit(8) is mutually exclusive with fbiinit0 bit(13) (memory FIFO enable).
+CMDFIFO offscreen memory store (0=execute CMDFIFO stream out of internal FIFOs only, 1=execute CMDFIFO using offscreen memory). Default is 0.
+Disable internal CMDFIFO hole counting logic (1=disable). Default is 0. If set, requires software to manually “bump” the CMDFIFO depth with writes to the cmdFifoDepth register
+CMDFIFO read fetch threshold (range 0-31). Default is 0.
+Synchronize writes to CMDFIFO registers across graphics clock boundry (1=enable). Default is 0.
+Synchronize reads from CMDFIFO registers across graphics clock boundry (1=enable). Default is 0.
+Reset PCI packer (0=normal operation, 1=reset PCI packer). Default is 0.
+Enable chromaKey and chromaRange writes to Bruce (1=enable). Default is 0.
+CMDFIFO PCI timeout counter value (range 0-127). Default is 0x0.
+Enable bursting of consecutive texture memory writes across FT Bus (1=enable). Default is 0.
+
+cmdFifoBaseAddr
+Bit
+9:0
+15:10
+25:16
+Description
+CMDFIFO base address, specified in pages (row address). Default is 0x0.
+reserved
+CMDFIFO end address, specified in pages (row address). Default is 0x0.
+
+cmdFifoBump
+Bit
+15:0
+Description
+Internal CMDFIFO bump register
+
+cmdFifoRdPtr
+Bit
+31:0
+Description
+Internal CMDFIFO read pointer
+
+cmdFifoAMin
+Bit
+31:0
+Description
+Internal CMDFIFO minimum address register
+
+cmdFifoAMax
+Bit
+31:0
+Description
+Internal CMDFIFO maximum address register
+
+cmdFifoDepth
+Bit
+15:0
+Description
+Internal CMDFIFO depth register
+
+cmdFifoHoles
+Bit
+15:0
+Description
+Internal CMDFIFO number of holes register
+
+clutData
+Bit
+7:0
+15:8
+23:16
+29:24
+Description
+Blue color component to be written to video Color Lookup Table
+Green color component to be written to video Color Lookup Table
+Red color component to be written to video Color Lookup Table
+Index of video Color Lookup Table to be written (Range 0-32 only).
+
+dacData
+Bit
+7:0
+10:8
+11
+13:12
+Description
+External DAC register write data
+External DAC register address, bits(2:0)
+External DAC read command (1=read external DAC, 0=write external DAC)
+External DAC register address, bits(4:3)
+
+sSetupMode
+Bit
+0
+1
+2
+3
+4
+5
+6
+7
+15:8
+16
+17
+18
+19
+Description
+Setup Red, Green, and Blue
+Setup Alpha
+Setup Z
+Setup Wb
+Setup W0
+Setup S0 and T0
+Setup W1
+Setup S1 and T1
+reserved
+Strip mode (0=strip, 1=fan)
+Enable Culling (0=disable, 1=enable)
+Culling Sign (0=positive sign, 1=negative sign)
+Disable ping pong sign correction during triangle strips (0=normal, 1=disable)
+
+sVx
+Bit
+31:0
+Description
+Vertex coordinate information (IEEE 32 bit single-precision floating point format)
+
+sVy
+Bit
+31:0
+Description
+Vertex coordinate information (IEEE 32 bit single-precision floating point format)
+
+sARGB
+Bit
+31:24
+23:16
+15:8
+7:0
+Description
+Alpha Color
+Red Color
+Green Color
+Blue Color
+
+sS/W0
+Bit
+31:0
+Description
+Texture S coordinate (IEEE 32 bit single-precision floating point format)
+
+sT/W0
+Bit
+31:0
+Description
+Texture T coordinate (IEEE 32 bit single-precision floating point format)
+
+sVz
+Bit
+31:0
+Description
+Vertex coordinate information (IEEE 32 bit single-precision floating point format)
+
+sWtmu0
+Bit
+31:0
+Description
+Texture local 1/W. (IEEE 32 bit single-precision floating point format)
+
+sWtmu1
+Bit
+31:0
+Description
+Texture local 1/W. (IEEE 32 bit single-precision floating point format)
+
+sS/Wtmu1
+Bit
+31:0
+Description
+Texture local 1/W. (IEEE 32 bit single-precision floating point format)
+
+sT/Wtmu1
+Bit
+31:0
+Description
+Texture local 1/W. (IEEE 32 bit single-precision floating point format)
+
+sAlpha
+Bit
+31:0
+Description
+Alpha value at vertex (0.0 - 255.0). (IEEE 32 bit single-precision floating point format)
+
+sRed
+Bit
+31:0
+Description
+Red value at vertex (0.0 - 255.0). (IEEE 32 bit single-precision floating point format)
+
+sGreen
+Bit
+31:0
+Description
+Green value at vertex (0.0 - 255.0). (IEEE 32 bit single-precision floating point format)
+
+sBlue
+Bit
+31:0
+Description
+Blue value at vertex (0.0 - 255.0). (IEEE 32 bit single-precision floating point format)
+
+sDrawTriCMD
+Bit
+0
+Description
+Draw triangle
+
+sBeginTriCMD
+Bit
+0
+Description
+Begin New triangle
+
+textureMode
+Bit
+0
+1
+2
+3
+4
+5
+6
+7
+11:8
+12
+13
+16:14
+17
+18
+19
+20
+21
+22
+25:23
+26
+27
+28
+29
+30
+31
+Name
+tpersp_st
+tminfilter
+tmagfilter
+tclampw
+tloddither
+tnccselect
+tclamps
+tclampt
+tformat
+tc_zero_other
+tc_sub_clocal
+tc_mselect
+tc_reverse_blend
+tc_add_clocal
+tc_add_alocal
+tc_invert_output
+tca_zero_other
+tca_sub_clocal
+tca_mselect
+tca_reverse_blend
+tca_add_clocal
+tca_add_alocal
+tca_invert_output
+trilinear
+seq_8_downld
+Description
+Enable perspective correction for S and T iterators (0=linear interploation of S,T, force W to 1.0, 1=perspective correct, S/W, T/W)
+Texture minification filter (0=point-sampled, 1=bilinear)
+Texture magnification filter (0=point-sampled, 1=bilinear)
+Clamp when W is negative (0=disabled, 1=force S=0, T=0 when W is negative)
+Enable Level-of-Detail dithering (0=no dither, 1=dither)
+Narrow Channel Compressed (NCC) Table Select (0=table 0, 1=table 1)
+Clamp S Iterator (0=wrap, 1=clamp)
+Clamp T Iterator (0=wrap, 1=clamp)
+Texture format (see table below)
+Zero Other (0=c_other, 1=zero)
+Subtract Color Local (0=zero, 1=c_local)
+Mux Select (0=zero, 1=c_local, 2=a_other, 3=a_local, 4=LOD, 5=LOD_frac, 6-7=reserved)
+Reverse Blend (0=normal blend, 1=reverse blend)
+Add Color Local
+Add Alpha Local
+Invert Output
+Zero Other (0=c_other, 1=zero)
+Subtract Color Local (0=zero, 1=c_local)
+Mux Select (0=zero, 1=c_local, 2=a_other, 3=a_local, 4=LOD, 5=LOD_frac, 6-7=reserved)
+Reverse Blend (0=normal blend, 1=reverse blend)
+Add Color Local
+Add Alpha Local
+Invert Output
+Enable trilinear texture mapping (0=point-sampled/bilinear, 1=trilinear)
+Sequential 8-bit download (0=even 32-bit word addresses, 1=sequential addresses)
+
+tLOD
+Bit
+5:0
+11:6
+17:12
+18
+19
+20
+22:21
+23
+24
+25
+26
+27
+Name
+lodmin
+lodmax
+lodbias
+lod_odd
+lod_tsplit
+lod_s_is_wider
+lod_aspect
+lod_zerofrac
+tmultibaseaddr
+tdata_swizzle
+tdata_swap
+tdirect_write
+Description
+Minimum LOD. (4.2 unsigned)
+Maximum LOD. (4.2 unsigned)
+LOD Bias. (4.2 signed)
+LOD odd (0=even, 1=odd)
+Texture is Split. (0=texture contains all LOD levels, 1=odd or even levels only, as controlled by lod_odd)
+S dimension is wider, for rectilinear texture maps. This is a don’t care for square textures. (1=S is wider than T).
+Aspect ratio. Equal to 2^n. (00 is square texture, others are rectilinear: 01 is 2x1/1x2, 10 is 4x1/1x4, 10 is 8x1/1x8)
+LOD zero frac, useful for bilinear when even and odd levels are split across two Bruces (0=normal LOD frac, 1=force fraction to 0)
+Use multiple texbaseAddr registers
+Byte swap incoming texture data (bytes 0<->3, 1<->2).
+Short swap incoming texture data (shorts 0<->1).
+Enable raw direct texture memory writes (1=enable). seq_8_downld must equal 0.
+
+tDetail
+Bit
+7:0
+13:8
+16:14
+17
+18
+19
+20
+21
+Name
+detail _max
+detail_bias
+detail_scale
+rgb_tminfilter
+rgb_tmagfilter
+a_tminfilter
+a_tmagfilter
+rgb_a_separate_filter
+Description
+Detail texture LOD clamp (8.0 unsigned)
+Detail texture bias (6.0 signed)
+Detail texture scale shift left
+RGB texture minification filter (0=point-sampled, 1=bilinear)
+RGB texture magnification filter (0=point-sampled, 1=bilinear)
+Alpha texture minification filter (0=point-sampled, 1=bilinear)
+Alpha texture magnification filter (0=point-sampled, 1=bilinear)
+0=tminfilter and tmagfilter (in textureMode) define the filter for RGBA 1=rgb_tminfilter/rgb_tmagfilter define the filter for RGB and a_tminfilter/a_tmagfilter define the filter for Alpha
+
+texBaseAddr, texBaseAddr1, texBaseAddr2, and texBaseAddr38
+Bit
+18:0
+18:0
+18:0
+18:0
+Name
+texbaseaddr
+texbaseaddr1
+texbaseaddr2
+texbaseaddr38
+Description
+Texture Memory Base Address, tmultibaseaddr==0 or LODBI==0
+Texture Memory Base Address, tmultibaseaddr==1 and LODBI==1
+Texture Memory Base Address, tmultibaseaddr==1 and LODBI==2
+Texture Memory Base Address, tmultibaseaddr==1 and LODBI>=3
diff --git a/voodoo2_bits_csv.py b/voodoo2_bits_csv.py
new file mode 100644
index 0000000..fee296d
--- /dev/null
+++ b/voodoo2_bits_csv.py
@@ -0,0 +1,67 @@
+import sys
+import csv
+
+def next_l(it):
+    n = next(it)
+    while not n.strip():
+        n = next(it)
+    return n.strip()
+
+def next_s(it):
+    n = next(it)
+    return n.strip()
+
+def parse_bit(s):
+    if ':' in s:
+        a, b = s.split(':')
+        return int(a, 10), int(b, 10)
+    else:
+        return int(s, 10)
+
+def parse(lines):
+    it = iter(lines)
+
+    while True:
+        try:
+            name = next_l(it)
+            assert name not in {'Bit', 'Description'}
+        except StopIteration:
+            return
+        n = next_l(it)
+        assert n == 'Bit', n
+        bits = []
+        n = next_s(it)
+        while n != 'Description' and n != 'Name':
+            bits.append(parse_bit(n))
+            n = next_s(it)
+        names = []
+        if n == 'Name':
+            n = next_s(it)
+            while n != 'Description':
+                names.append(n)
+                n = next_s(it)
+        assert n == 'Description'
+        descriptions = []
+        n = next_s(it)
+        while n != '':
+            descriptions.append(n)
+            n = next_s(it)
+        assert len(descriptions) == len(bits), (descriptions, bits)
+        if names:
+            assert len(names) == len(bits), (names, bits)
+        yield name, bits, names, descriptions
+
+def generate_csv(parsed):
+    with open(sys.argv[2], 'w', newline='') as f:
+        writer = csv.writer(f)
+        for name, bits, _, descriptions in parsed:
+            for bit, description in zip(bits, descriptions):
+                bits = str(bit) if type(bit) is int else ':'.join(map(str, bit))
+                writer.writerow([name, bits, description])
+            writer.writerow([])
+
+with open(sys.argv[1], 'r') as f:
+    buf = f.read()
+lines = buf.split('\n')
+#list(parse(lines))
+generate_csv(parse(lines))