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Bochs/bochs/patches/patch.vga-mode2-speed-dohzono
Volker Ruppert 03b56777be - updated patch for current CVS 
- removed unnecessary changes
2002-11-28 20:33:57 +00:00

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----------------------------------------------------------------------
Patch name: patch.vga-dohzono
Author: dohzono (uploaded by cbothamy)
Date: 31 oct 2002
Detailed description:
This patch adds VGA write mode 2 support and includes various
speed improvements posted by the author on the ml.
Here are very detailed (nice!) notes from the author :
-------------
The feature I added is "VGA write mode 2" support (which is required
by Japanese Windows 9x). Not tested much, yet.
The original version causes panic like this.
| case 2: /* write mode 2 */
| if (BX_VGA_THIS s.graphics_ctrl.raster_op)
| BX_PANIC(("vga_mem_write: write mode 2: op = %u",
| (unsigned) BX_VGA_THIS s.graphics_ctrl.raster_op));
I consulted its specification to the FreeVGA project's documentation.
| Write Mode 2:
|
| Write Mode 2 is used to unpack a pixel value packed into the lower 4
| bits of the host data byte into the 4 display planes. In the byte
| from the host, the bit representing each plane will be replicated
| across all 8 bits of the corresponding planes. Then the operation
| specified by the Logical Operation field is performed on the
| resulting data and the data in the read latches. The Bit Mask field
| is then used to select between the resulting data and data from the
| latch register. Finally, the resulting data is written to the
| display memory planes enabled in the Memory Plane Write Enable
| field.
-------------
I also made some changes for speed. Some are (really) dirty hacks, so
I want someone to make them clean.
*
The file "rdat.h" contains rotated data which makes bochs need not to
calculate them each time. For example:
/* perform rotate on CPU data */
value = (value >> BX_VGA_THIS s.graphics_ctrl.data_rotate) |
(value << (8 - BX_VGA_THIS s.graphics_ctrl.data_rotate));
can be:
/* perform rotate on CPU data */
value = rdatp[value];
`rdatp' is changed with the variable `data_rotate'.
case 3: /* Data Rotate */
BX_VGA_THIS s.graphics_ctrl.data_rotate = value & 0x07;
rdatp = rdat[value & 0x07];
*
I made some variable scopes to be local. GNU C compier seems to
generate better code for this.
unsigned xti, yti;
...
for (yti=0; yti<iHeight/Y_TILESIZE; yti++)
for (xti=0; xti<iWidth/X_TILESIZE; xti++)
| localize
v
for (unsigned yti=0; yti<iHeight/Y_TILESIZE; yti++)
for (unsigned xti=0; xti<iWidth/X_TILESIZE; xti++)
*
I removed some multiplications.
for (yti=0; yti<iHeight/Y_TILESIZE; yti++)
for (xti=0; xti<iWidth/X_TILESIZE; xti++) {
pixely = ((yti*Y_TILESIZE) + r);
pixelx = ((xti*X_TILESIZE) + c);
bx_gui.graphics_tile_update(BX_VGA_THIS s.tile,
xti*X_TILESIZE, yti*Y_TILESIZE);
| variable exchange
v
for (unsigned yc=0,yti=0; yc<iHeight; yti++,yc+=Y_TILESIZE)
for (unsigned xc=0,xti=0; xc<iWidth; xti++,xc+=X_TILESIZE) {
pixely = (yc + r);
pixelx = (xc + c);
bx_gui.graphics_tile_update(BX_VGA_THIS s.tile,
xc, yc);
*
... and division code. Note that GCC makes DIVIDE_BY_CONSTANT to
be MULTIPLY_AND_SHIFT code on some MPUs (include x86s).
rows = (VDE+1)/(MSL+1);
| division removal
v
switch (MSL) {
#define cs(n) case n: rows = (VDE + 1)/((n) + 1); break
cs(0x00);
...
cs(0x1f);
#undef cs
}
*
x_tileno = (offset % (BX_VGA_THIS s.scan_bits/8)) / (X_TILESIZE / 8);
y_tileno = (offset / (BX_VGA_THIS s.scan_bits/8)) / Y_TILESIZE;
BX_VGA_THIS s.vga_tile_updated[x_tileno][y_tileno] = 1;
| division removal.
v
switch (BX_VGA_THIS s.scan_bits) {
case 320:
x_tileno = (offset % (320/8)) / (X_TILESIZE / 8);
y_tileno = (offset / (320/8)) / Y_TILESIZE;
break;
case 640:
x_tileno = (offset % (640/8)) / (X_TILESIZE / 8);
y_tileno = (offset / (640/8)) / Y_TILESIZE;
break;
}
BX_VGA_THIS s.vga_tile_updated[x_tileno][y_tileno] = 1;
}
-------------
Patch was created with:
cvs diff -u
Apply patch to what version:
cvs checked out on DATE, release version VER
Instructions:
To patch, go to main bochs directory.
Type "patch -p0 < THIS_PATCH_FILE".
----------------------------------------------------------------------
Index: iodev/vga.cc
===================================================================
RCS file: /cvsroot/bochs/bochs/iodev/vga.cc,v
retrieving revision 1.52
diff -u -r1.52 vga.cc
--- iodev/vga.cc Sat Nov 16 18:30:22 2002
+++ iodev/vga.cc Thu Nov 28 21:13:05 2002
@@ -39,6 +39,9 @@
* support map mask (3c5 reg 02)
*/
+#include "vga_tables.h"
+const unsigned char *rdatp;
+
// (mch)
#define VGA_TRACE_FEATURE
@@ -173,6 +176,7 @@
BX_VGA_THIS s.graphics_ctrl.enable_set_reset = 0;
BX_VGA_THIS s.graphics_ctrl.color_compare = 0;
BX_VGA_THIS s.graphics_ctrl.data_rotate = 0;
+ rdatp = rdat[0];
BX_VGA_THIS s.graphics_ctrl.raster_op = 0;
BX_VGA_THIS s.graphics_ctrl.read_map_select = 0;
BX_VGA_THIS s.graphics_ctrl.write_mode = 0;
@@ -1107,6 +1111,7 @@
break;
case 3: /* Data Rotate */
BX_VGA_THIS s.graphics_ctrl.data_rotate = value & 0x07;
+ rdatp = rdat[value & 0x07];
/* ??? is this bits 3..4 or 4..5 */
BX_VGA_THIS s.graphics_ctrl.raster_op = (value >> 3) & 0x03; /* ??? */
break;
@@ -1255,7 +1260,6 @@
{
// specific VBE code display update code
// this is partly copied/modified from the 320x200x8 update more below
- unsigned xti, yti, y_tiles;
Bit8u color;
unsigned r, c;
unsigned long byte_offset;
@@ -1266,32 +1270,31 @@
// incl virtual xres correction
Bit32u start_offset = ((BX_VGA_THIS s.vbe_offset_y) * (BX_VGA_THIS s.vbe_virtual_xres)) + BX_VGA_THIS s.vbe_offset_x;
- y_tiles = iHeight / Y_TILESIZE + ((iHeight % Y_TILESIZE) > 0);
- for (yti=0; yti<y_tiles; yti++)
- for (xti=0; xti<iWidth/X_TILESIZE; xti++)
+ for (unsigned yc=0,yti=0; yc<iHeight; yti++,yc+=Y_TILESIZE)
+ for (unsigned xc=0,xti=0; xc<iWidth; xti++,xc+=X_TILESIZE)
{
if (GET_TILE_UPDATED (xti, yti))
- {
- for (r=0; r<Y_TILESIZE; r++)
+ {
+ for (r=0; r<Y_TILESIZE; r++)
{
- for (c=0; c<X_TILESIZE; c++)
+ for (c=0; c<X_TILESIZE; c++)
{
- pixely = ((yti*Y_TILESIZE) + r);
- pixelx = ((xti*X_TILESIZE) + c);
+ pixely = (yc + r);
+ pixelx = (xc + c);
- // incl virtual xres correction
+ // incl virtual xres correction
byte_offset = (pixely*(BX_VGA_THIS s.vbe_virtual_xres)) + (pixelx);
color = BX_VGA_THIS s.vbe_memory[start_offset + byte_offset];
BX_VGA_THIS s.tile[r*X_TILESIZE + c] = color;
}
}
- bx_gui->graphics_tile_update(BX_VGA_THIS s.tile,
- xti*X_TILESIZE, yti*Y_TILESIZE);
SET_TILE_UPDATED (xti, yti, 0);
- }
+ bx_gui->graphics_tile_update(BX_VGA_THIS s.tile, xc, yc);
+ }
}
-
+
+
BX_VGA_THIS s.vga_mem_updated = 0;
// after a vbe display update, don't try to do any 'normal vga' updates anymore
return;
@@ -1313,7 +1316,6 @@
Bit8u color;
unsigned bit_no, r, c;
unsigned long byte_offset;
- unsigned xti, yti, y_tiles;
//BX_DEBUG(("update: shiftreg=%u, chain4=%u, mapping=%u",
@@ -1339,16 +1341,15 @@
}
start_addr = (BX_VGA_THIS s.CRTC.reg[0x0c] << 8) | BX_VGA_THIS s.CRTC.reg[0x0d];
- y_tiles = iHeight / Y_TILESIZE + ((iHeight % Y_TILESIZE) > 0);
- for (yti=0; yti<y_tiles; yti++)
- for (xti=0; xti<iWidth/X_TILESIZE; xti++) {
+ for (unsigned yc=0,yti=0; yc<iHeight; yti++,yc+=Y_TILESIZE)
+ for (unsigned xc=0,xti=0; xc<iWidth; xti++,xc+=X_TILESIZE) {
if (GET_TILE_UPDATED (xti, yti)) {
+
for (r=0; r<Y_TILESIZE; r++) {
for (c=0; c<X_TILESIZE; c++) {
bit_no = 7 - (c % 8);
- byte_offset = start_addr + (xti*X_TILESIZE+c)/8 +
- ((yti*Y_TILESIZE+r) * (BX_VGA_THIS s.scan_bits/8));
+ byte_offset = start_addr + ((yc+r) * (BX_VGA_THIS s.scan_bits/8)) + (xc+c)/8;
attribute =
(((BX_VGA_THIS s.vga_memory[0*65536 + byte_offset] >> bit_no) & 0x01) << 0) |
(((BX_VGA_THIS s.vga_memory[1*65536 + byte_offset] >> bit_no) & 0x01) << 1) |
@@ -1376,9 +1377,8 @@
BX_VGA_THIS s.tile[r*X_TILESIZE + c] = DAC_regno;
}
}
- bx_gui->graphics_tile_update(BX_VGA_THIS s.tile,
- xti*X_TILESIZE, yti*Y_TILESIZE);
SET_TILE_UPDATED (xti, yti, 0);
+ bx_gui->graphics_tile_update(BX_VGA_THIS s.tile, xc, yc);
}
}
break; // case 0
@@ -1395,22 +1395,20 @@
old_iHeight = iHeight;
}
- y_tiles = iHeight / Y_TILESIZE + ((iHeight % Y_TILESIZE) > 0);
-
- for (yti=0; yti<y_tiles; yti++)
- for (xti=0; xti<iWidth/X_TILESIZE; xti++) {
+ for (unsigned yc=0,yti=0; yc<iHeight; yti++,yc+=Y_TILESIZE)
+ for (unsigned xc=0,xti=0; xc<iWidth; xti++,xc+=X_TILESIZE) {
if (GET_TILE_UPDATED (xti, yti)) {
for (r=0; r<Y_TILESIZE; r++) {
for (c=0; c<X_TILESIZE; c++) {
/* 0 or 0x2000 */
- byte_offset = ((yti*Y_TILESIZE + r) & 1) << 13;
+ byte_offset = ((yc + r) & 1) << 13;
/* to the start of the line */
- byte_offset += (320 / 4) * ((yti*Y_TILESIZE + r) / 2);
+ byte_offset += (320 / 4) * ((yc + r) / 2);
/* to the byte start */
- byte_offset += ((xti*X_TILESIZE + c) / 4);
+ byte_offset += ((xc + c) / 4);
- attribute = 6 - 2*((xti*X_TILESIZE + c) % 4);
+ attribute = 6 - 2*((xc + c) % 4);
palette_reg_val = (BX_VGA_THIS s.vga_memory[byte_offset]) >> attribute;
palette_reg_val &= 3;
palette_reg_val |= BX_VGA_THIS s.attribute_ctrl.mode_ctrl.enable_line_graphics << 2;
@@ -1419,9 +1417,8 @@
BX_VGA_THIS s.tile[r*X_TILESIZE + c] = DAC_regno;
}
}
- bx_gui->graphics_tile_update(BX_VGA_THIS s.tile,
- xti*X_TILESIZE, yti*Y_TILESIZE);
SET_TILE_UPDATED (xti, yti, 0);
+ bx_gui->graphics_tile_update(BX_VGA_THIS s.tile, xc, yc);
}
}
/* CGA 320x200x4 end */
@@ -1446,15 +1443,13 @@
old_iWidth = iWidth;
}
- y_tiles = iHeight / Y_TILESIZE + ((iHeight % Y_TILESIZE) > 0);
-
- for (yti=0; yti<y_tiles; yti++)
- for (xti=0; xti<iWidth/X_TILESIZE; xti++) {
+ for (unsigned yc=0,yti=0; yc<iHeight; yti++,yc+=Y_TILESIZE)
+ for (unsigned xc=0,xti=0; xc<iWidth; xti++,xc+=X_TILESIZE) {
if (GET_TILE_UPDATED (xti, yti)) {
for (r=0; r<Y_TILESIZE; r++) {
for (c=0; c<X_TILESIZE; c++) {
- pixely = ((yti*Y_TILESIZE) + r);
- pixelx = ((xti*X_TILESIZE) + c);
+ pixely = (yc + r);
+ pixelx = (xc + c);
plane = (pixelx % 4);
byte_offset = (plane * 65536) +
(pixely * 320) + (pixelx & ~0x03);
@@ -1464,12 +1459,11 @@
BX_VGA_THIS s.tile[r*X_TILESIZE + c] = color;
}
}
- bx_gui->graphics_tile_update(BX_VGA_THIS s.tile,
- xti*X_TILESIZE, yti*Y_TILESIZE);
SET_TILE_UPDATED (xti, yti, 0);
+ bx_gui->graphics_tile_update(BX_VGA_THIS s.tile,xc,yc);
}
}
- }
+ }
else { // chain_four == 0, modeX
unsigned long pixely, pixelx, plane, start_addr;
@@ -1482,14 +1476,13 @@
}
start_addr = (BX_VGA_THIS s.CRTC.reg[0x0c] << 8) | BX_VGA_THIS s.CRTC.reg[0x0d];
- y_tiles = iHeight / Y_TILESIZE + ((iHeight % Y_TILESIZE) > 0);
- for (yti=0; yti<y_tiles; yti++) {
- for (xti=0; xti<iWidth/X_TILESIZE; xti++) {
+ for (unsigned yc=0,yti=0; yc<iHeight; yti++,yc+=Y_TILESIZE) {
+ for (unsigned xc=0,xti=0; xc<iWidth; xti++,xc+=X_TILESIZE) {
for (r=0; r<Y_TILESIZE; r++) {
for (c=0; c<X_TILESIZE; c++) {
- pixely = ((yti*Y_TILESIZE) + r);
- pixelx = ((xti*X_TILESIZE) + c);
+ pixely = (yc + r);
+ pixelx = (xc + c);
plane = (pixelx % 4);
byte_offset = (plane * 65536) +
(pixely * (BX_VGA_THIS s.CRTC.reg[0x13]<<1))
@@ -1498,9 +1491,8 @@
BX_VGA_THIS s.tile[r*X_TILESIZE + c] = color;
}
}
- bx_gui->graphics_tile_update(BX_VGA_THIS s.tile,
- xti*X_TILESIZE, yti*Y_TILESIZE);
SET_TILE_UPDATED (xti, yti, 0);
+ bx_gui->graphics_tile_update(BX_VGA_THIS s.tile, xc, yc);
}
}
}
@@ -1520,7 +1512,6 @@
unsigned long cursor_address, cursor_x, cursor_y;
Bit16u cursor_state;
-
switch (BX_VGA_THIS s.graphics_ctrl.memory_mapping) {
case 0: // 128K @ A0000
case 1: // 64K @ A0000
@@ -1602,7 +1593,48 @@
BX_ERROR(("character height = 1, skipping text update"));
return;
}
+
+#if 0
rows = (VDE+1)/(MSL+1);
+#else
+ switch (MSL) {
+#define case_n(n) case n: rows = (VDE + 1)/((n) + 1); break
+ case_n(0x00);
+ case_n(0x01);
+ case_n(0x02);
+ case_n(0x03);
+ case_n(0x04);
+ case_n(0x05);
+ case_n(0x06);
+ case_n(0x07);
+ case_n(0x08);
+ case_n(0x09);
+ case_n(0x0a);
+ case_n(0x0b);
+ case_n(0x0c);
+ case_n(0x0d);
+ case_n(0x0e);
+ case_n(0x0f);
+ case_n(0x10);
+ case_n(0x11);
+ case_n(0x12);
+ case_n(0x13);
+ case_n(0x14);
+ case_n(0x15);
+ case_n(0x16);
+ case_n(0x17);
+ case_n(0x18);
+ case_n(0x19);
+ case_n(0x1a);
+ case_n(0x1b);
+ case_n(0x1c);
+ case_n(0x1d);
+ case_n(0x1e);
+ case_n(0x1f);
+ #undef case_n
+ }
+#endif
+
if (rows > BX_MAX_TEXT_LINES)
BX_PANIC(("text rows>%d: %d",BX_MAX_TEXT_LINES,rows));
iWidth = 8 * (BX_VGA_THIS s.CRTC.reg[1] + 1);
@@ -1708,7 +1740,6 @@
// Mode 13h: 320 x 200 256 color mode: chained pixel representation
return( BX_VGA_THIS s.vga_memory[(offset & ~0x03) + (offset % 4)*65536] );
}
-
}
else {
switch (BX_VGA_THIS s.graphics_ctrl.memory_mapping) {
@@ -1731,47 +1762,46 @@
return(BX_VGA_THIS s.vga_memory[offset]);
}
- /* addr between 0xA0000 and 0xAFFFF */
- switch (BX_VGA_THIS s.graphics_ctrl.read_mode) {
- case 0: /* read mode 0 */
- BX_VGA_THIS s.graphics_ctrl.latch[0] = BX_VGA_THIS s.vga_memory[ offset];
- BX_VGA_THIS s.graphics_ctrl.latch[1] = BX_VGA_THIS s.vga_memory[1*65536 + offset];
- BX_VGA_THIS s.graphics_ctrl.latch[2] = BX_VGA_THIS s.vga_memory[2*65536 + offset];
- BX_VGA_THIS s.graphics_ctrl.latch[3] = BX_VGA_THIS s.vga_memory[3*65536 + offset];
- return(BX_VGA_THIS s.graphics_ctrl.latch[BX_VGA_THIS s.graphics_ctrl.read_map_select]);
- break;
+ /* addr between 0xA0000 and 0xAFFFF */
+ switch (BX_VGA_THIS s.graphics_ctrl.read_mode) {
+ case 0: /* read mode 0 */
+ BX_VGA_THIS s.graphics_ctrl.latch[0] = BX_VGA_THIS s.vga_memory[ offset];
+ BX_VGA_THIS s.graphics_ctrl.latch[1] = BX_VGA_THIS s.vga_memory[1*65536 + offset];
+ BX_VGA_THIS s.graphics_ctrl.latch[2] = BX_VGA_THIS s.vga_memory[2*65536 + offset];
+ BX_VGA_THIS s.graphics_ctrl.latch[3] = BX_VGA_THIS s.vga_memory[3*65536 + offset];
+ return(BX_VGA_THIS s.graphics_ctrl.latch[BX_VGA_THIS s.graphics_ctrl.read_map_select]);
+ break;
- case 1: /* read mode 1 */
- {
- Bit8u color_compare, color_dont_care;
- Bit8u latch0, latch1, latch2, latch3, retval, pixel_val;
+ case 1: /* read mode 1 */
+ {
+ Bit8u color_compare, color_dont_care;
+ Bit8u latch0, latch1, latch2, latch3, retval, pixel_val;
- color_compare = BX_VGA_THIS s.graphics_ctrl.color_compare & 0x0f;
- color_dont_care = BX_VGA_THIS s.graphics_ctrl.color_dont_care & 0x0f;
- latch0 = BX_VGA_THIS s.graphics_ctrl.latch[0] = BX_VGA_THIS s.vga_memory[ offset];
- latch1 = BX_VGA_THIS s.graphics_ctrl.latch[1] = BX_VGA_THIS s.vga_memory[1*65536 + offset];
- latch2 = BX_VGA_THIS s.graphics_ctrl.latch[2] = BX_VGA_THIS s.vga_memory[2*65536 + offset];
- latch3 = BX_VGA_THIS s.graphics_ctrl.latch[3] = BX_VGA_THIS s.vga_memory[3*65536 + offset];
- retval = 0;
- for (unsigned b=0; b<8; b++) {
- pixel_val =
- ((latch0 << 0) & 0x01) |
- ((latch1 << 1) & 0x02) |
- ((latch2 << 2) & 0x04) |
- ((latch3 << 3) & 0x08);
- latch0 >>= 1;
- latch1 >>= 1;
- latch2 >>= 1;
- latch3 >>= 1;
- if ( (pixel_val & color_dont_care) ==
- (color_compare & color_dont_care) )
- retval |= (1 << b);
+ color_compare = BX_VGA_THIS s.graphics_ctrl.color_compare & 0x0f;
+ color_dont_care = BX_VGA_THIS s.graphics_ctrl.color_dont_care & 0x0f;
+ latch0 = BX_VGA_THIS s.graphics_ctrl.latch[0] = BX_VGA_THIS s.vga_memory[ offset];
+ latch1 = BX_VGA_THIS s.graphics_ctrl.latch[1] = BX_VGA_THIS s.vga_memory[1*65536 + offset];
+ latch2 = BX_VGA_THIS s.graphics_ctrl.latch[2] = BX_VGA_THIS s.vga_memory[2*65536 + offset];
+ latch3 = BX_VGA_THIS s.graphics_ctrl.latch[3] = BX_VGA_THIS s.vga_memory[3*65536 + offset];
+
+ latch0 ^= ccdat[color_compare][0];
+ latch1 ^= ccdat[color_compare][1];
+ latch2 ^= ccdat[color_compare][2];
+ latch3 ^= ccdat[color_compare][3];
+
+ latch0 &= ccdat[color_dont_care][0];
+ latch1 &= ccdat[color_dont_care][1];
+ latch2 &= ccdat[color_dont_care][2];
+ latch3 &= ccdat[color_dont_care][3];
+
+ retval = ~(latch0 | latch1 | latch2 | latch3);
+
+ return retval;
}
- return(retval);
- }
- break;
- default:
- return(0);
+ break;
+
+ default:
+ return(0);
}
}
@@ -1779,7 +1809,7 @@
bx_vga_c::mem_write(Bit32u addr, Bit8u value)
{
Bit32u offset;
- Bit8u new_bit, new_val[4], cpu_data_b[4];
+ Bit8u new_bit, new_val[4];
#if BX_SUPPORT_VBE
// if in a vbe enabled mode, write to the vbe_memory
@@ -1818,15 +1848,14 @@
offset = addr - 0xA0000;
}
else if (BX_VGA_THIS s.graphics_ctrl.memory_mapping == 3) { // 0xB8000 .. 0xBFFFF
- unsigned x_tileno, y_tileno, isEven;
+ unsigned x_tileno, y_tileno;
if ( (addr < 0xB8000) || (addr > 0xBFFFF) )
return;
offset = addr - 0xB8000;
/* CGA 320x200x4 start */
- isEven = (offset>=0x2000)?1:0;
- if (isEven) {
+ if (offset>=0x2000) {
y_tileno = offset - 0x2000;
y_tileno /= (320/4);
y_tileno <<= 1; //2 * y_tileno;
@@ -1864,7 +1893,6 @@
SET_TILE_UPDATED (x_tileno, y_tileno, 1);
return;
}
-
}
else {
switch (BX_VGA_THIS s.graphics_ctrl.memory_mapping) {
@@ -1885,197 +1913,278 @@
}
}
- /* addr between 0xA0000 and 0xAFFFF */
- switch (BX_VGA_THIS s.graphics_ctrl.write_mode) {
- Bit8u and_mask, bitmask;
- Bit8u set_reset_b[4];
- unsigned i, b;
-
- case 0: /* write mode 0 */
- /* perform rotate on CPU data in case its needed */
- value = (value >> BX_VGA_THIS s.graphics_ctrl.data_rotate) |
- (value << (8 - BX_VGA_THIS s.graphics_ctrl.data_rotate));
- bitmask = BX_VGA_THIS s.graphics_ctrl.bitmask;
- for (i=0; i<4; i++ ) {
- new_val[i] = 0;
- }
- set_reset_b[0] = (BX_VGA_THIS s.graphics_ctrl.set_reset >> 0) & 0x01;
- set_reset_b[1] = (BX_VGA_THIS s.graphics_ctrl.set_reset >> 1) & 0x01;
- set_reset_b[2] = (BX_VGA_THIS s.graphics_ctrl.set_reset >> 2) & 0x01;
- set_reset_b[3] = (BX_VGA_THIS s.graphics_ctrl.set_reset >> 3) & 0x01;
- and_mask = 1;
- for (b=0; b<8; b++) {
- if (bitmask & 0x01) { /* bit-mask bit set, perform op */
- for (i=0; i<4; i++) {
- /* derive bit from set/reset register */
- if ( (BX_VGA_THIS s.graphics_ctrl.enable_set_reset >> i) & 0x01 ) {
- new_bit = (set_reset_b[i] << b);
- }
- /* derive bit from rotated CPU data */
- else {
- new_bit = (value & and_mask);
- }
- switch (BX_VGA_THIS s.graphics_ctrl.raster_op) {
- case 0: /* replace */
- new_val[i] |= new_bit;
- break;
- case 1: /* AND with latch data */
- new_val[i] |=
- (new_bit & (BX_VGA_THIS s.graphics_ctrl.latch[i] & and_mask));
- break;
- case 2: /* OR with latch data */
- new_val[i] |=
- (new_bit | (BX_VGA_THIS s.graphics_ctrl.latch[i] & and_mask));
- break;
- case 3: /* XOR with latch data */
- new_val[i] |=
- (new_bit ^ (BX_VGA_THIS s.graphics_ctrl.latch[i] & and_mask));
- break;
- default:
- BX_PANIC(("vga_mem_write: write mode 0: op = %u",
- (unsigned) BX_VGA_THIS s.graphics_ctrl.raster_op));
- }
- }
- }
- else { /* bit-mask bit clear, pass data thru from latch */
- new_val[0] |= (BX_VGA_THIS s.graphics_ctrl.latch[0] & and_mask);
- new_val[1] |= (BX_VGA_THIS s.graphics_ctrl.latch[1] & and_mask);
- new_val[2] |= (BX_VGA_THIS s.graphics_ctrl.latch[2] & and_mask);
- new_val[3] |= (BX_VGA_THIS s.graphics_ctrl.latch[3] & and_mask);
+ /* addr between 0xA0000 and 0xAFFFF */
+ switch (BX_VGA_THIS s.graphics_ctrl.write_mode) {
+ Bit8u and_mask, bitmask, set_reset, enable_set_reset;
+ Bit8u set_reset_b[4];
+ unsigned i, b;
+
+ case 0: /* write mode 0 */
+ {
+ const Bit8u bitmask = BX_VGA_THIS s.graphics_ctrl.bitmask;
+ const Bit8u set_reset = BX_VGA_THIS s.graphics_ctrl.set_reset;
+ const Bit8u enable_set_reset = BX_VGA_THIS s.graphics_ctrl.enable_set_reset;
+
+ /* perform rotate on CPU data in case its needed */
+ value = rdatp[value];
+ new_val[0] = BX_VGA_THIS s.graphics_ctrl.latch[0] & ~bitmask;
+ new_val[1] = BX_VGA_THIS s.graphics_ctrl.latch[1] & ~bitmask;
+ new_val[2] = BX_VGA_THIS s.graphics_ctrl.latch[2] & ~bitmask;
+ new_val[3] = BX_VGA_THIS s.graphics_ctrl.latch[3] & ~bitmask;
+ switch (BX_VGA_THIS s.graphics_ctrl.raster_op) {
+ case 0: // replace
+ new_val[0] |= ((enable_set_reset & 1)
+ ? ((set_reset & 1) ? bitmask : 0)
+ : (value & bitmask));
+ new_val[1] |= ((enable_set_reset & 2)
+ ? ((set_reset & 2) ? bitmask : 0)
+ : (value & bitmask));
+ new_val[2] |= ((enable_set_reset & 4)
+ ? ((set_reset & 4) ? bitmask : 0)
+ : (value & bitmask));
+ new_val[3] |= ((enable_set_reset & 8)
+ ? ((set_reset & 8) ? bitmask : 0)
+ : (value & bitmask));
+ break;
+ case 1: // AND
+ new_val[0] |= ((enable_set_reset & 1)
+ ? ((set_reset & 1)
+ ? (BX_VGA_THIS s.graphics_ctrl.latch[0] & bitmask)
+ : 0)
+ : (value & BX_VGA_THIS s.graphics_ctrl.latch[0]) & bitmask);
+ new_val[1] |= ((enable_set_reset & 2)
+ ? ((set_reset & 2)
+ ? (BX_VGA_THIS s.graphics_ctrl.latch[1] & bitmask)
+ : 0)
+ : (value & BX_VGA_THIS s.graphics_ctrl.latch[1]) & bitmask);
+ new_val[2] |= ((enable_set_reset & 4)
+ ? ((set_reset & 4)
+ ? (BX_VGA_THIS s.graphics_ctrl.latch[2] & bitmask)
+ : 0)
+ : (value & BX_VGA_THIS s.graphics_ctrl.latch[2]) & bitmask);
+ new_val[3] |= ((enable_set_reset & 8)
+ ? ((set_reset & 8)
+ ? (BX_VGA_THIS s.graphics_ctrl.latch[3] & bitmask)
+ : 0)
+ : (value & BX_VGA_THIS s.graphics_ctrl.latch[3]) & bitmask);
+ break;
+ case 2: // OR
+ new_val[0]
+ |= ((enable_set_reset & 1)
+ ? ((set_reset & 1)
+ ? bitmask
+ : (BX_VGA_THIS s.graphics_ctrl.latch[0] & bitmask))
+ : ((value | BX_VGA_THIS s.graphics_ctrl.latch[0]) & bitmask));
+ new_val[1]
+ |= ((enable_set_reset & 2)
+ ? ((set_reset & 2)
+ ? bitmask
+ : (BX_VGA_THIS s.graphics_ctrl.latch[1] & bitmask))
+ : ((value | BX_VGA_THIS s.graphics_ctrl.latch[1]) & bitmask));
+ new_val[2]
+ |= ((enable_set_reset & 4)
+ ? ((set_reset & 4)
+ ? bitmask
+ : (BX_VGA_THIS s.graphics_ctrl.latch[2] & bitmask))
+ : ((value | BX_VGA_THIS s.graphics_ctrl.latch[2]) & bitmask));
+ new_val[3]
+ |= ((enable_set_reset & 8)
+ ? ((set_reset & 8)
+ ? bitmask
+ : (BX_VGA_THIS s.graphics_ctrl.latch[3] & bitmask))
+ : ((value | BX_VGA_THIS s.graphics_ctrl.latch[3]) & bitmask));
+ break;
+ case 3: // XOR
+ new_val[0]
+ |= ((enable_set_reset & 1)
+ ? ((set_reset & 1)
+ ? (~BX_VGA_THIS s.graphics_ctrl.latch[0] & bitmask)
+ : (BX_VGA_THIS s.graphics_ctrl.latch[0] & bitmask))
+ : (value ^ BX_VGA_THIS s.graphics_ctrl.latch[0]) & bitmask);
+ new_val[1]
+ |= ((enable_set_reset & 2)
+ ? ((set_reset & 2)
+ ? (~BX_VGA_THIS s.graphics_ctrl.latch[1] & bitmask)
+ : (BX_VGA_THIS s.graphics_ctrl.latch[1] & bitmask))
+ : (value ^ BX_VGA_THIS s.graphics_ctrl.latch[1]) & bitmask);
+ new_val[2]
+ |= ((enable_set_reset & 4)
+ ? ((set_reset & 4)
+ ? (~BX_VGA_THIS s.graphics_ctrl.latch[2] & bitmask)
+ : (BX_VGA_THIS s.graphics_ctrl.latch[2] & bitmask))
+ : (value ^ BX_VGA_THIS s.graphics_ctrl.latch[2]) & bitmask);
+ new_val[3]
+ |= ((enable_set_reset & 8)
+ ? ((set_reset & 8)
+ ? (~BX_VGA_THIS s.graphics_ctrl.latch[3] & bitmask)
+ : (BX_VGA_THIS s.graphics_ctrl.latch[3] & bitmask))
+ : (value ^ BX_VGA_THIS s.graphics_ctrl.latch[3]) & bitmask);
+ break;
+ default:
+ BX_PANIC(("vga_mem_write: write mode 0: op = %u",
+ (unsigned) BX_VGA_THIS s.graphics_ctrl.raster_op));
}
- bitmask >>= 1;
- and_mask <<= 1;
}
- break;
+ break;
+ case 1: /* write mode 1 */
+ for (i=0; i<4; i++ ) {
+ new_val[i] = BX_VGA_THIS s.graphics_ctrl.latch[i];
+ }
+ break;
- case 1: /* write mode 1 */
- for (i=0; i<4; i++ ) {
- new_val[i] = BX_VGA_THIS s.graphics_ctrl.latch[i];
- }
- break;
+ case 2: /* write mode 2 */
+ {
+ const Bit8u bitmask = BX_VGA_THIS s.graphics_ctrl.bitmask;
- case 2: /* write mode 2 */
- if (BX_VGA_THIS s.graphics_ctrl.raster_op)
- BX_PANIC(("vga_mem_write: write mode 2: op = %u",
- (unsigned) BX_VGA_THIS s.graphics_ctrl.raster_op));
- bitmask = BX_VGA_THIS s.graphics_ctrl.bitmask;
- for (i=0; i<4; i++ ) {
- new_val[i] = 0;
- }
- cpu_data_b[0] = (value >> 0) & 0x01;
- cpu_data_b[1] = (value >> 1) & 0x01;
- cpu_data_b[2] = (value >> 2) & 0x01;
- cpu_data_b[3] = (value >> 3) & 0x01;
- and_mask = 1;
- for (b=0; b<8; b++) {
- if (bitmask & 0x01) { /* bit-mask bit set, perform op */
+ /* perform rotate on CPU data */
+ value = rdatp[value];
+ new_val[0] = BX_VGA_THIS s.graphics_ctrl.latch[0] & ~bitmask;
+ new_val[1] = BX_VGA_THIS s.graphics_ctrl.latch[1] & ~bitmask;
+ new_val[2] = BX_VGA_THIS s.graphics_ctrl.latch[2] & ~bitmask;
+ new_val[3] = BX_VGA_THIS s.graphics_ctrl.latch[3] & ~bitmask;
switch (BX_VGA_THIS s.graphics_ctrl.raster_op) {
- case 0: /* replace: write cpu data unmodified */
- new_val[0] |= cpu_data_b[0] << b;
- new_val[1] |= cpu_data_b[1] << b;
- new_val[2] |= cpu_data_b[2] << b;
- new_val[3] |= cpu_data_b[3] << b;
- break;
- case 1: /* AND */
- case 2: /* OR */
- case 3: /* XOR */
- default:
- BX_PANIC(("vga_mem_write: raster_op = %u?",
- (unsigned) BX_VGA_THIS s.graphics_ctrl.raster_op));
- }
- }
- else { /* bit-mask bit clear, pass data thru from latch */
- new_val[0] |= (BX_VGA_THIS s.graphics_ctrl.latch[0] & and_mask);
- new_val[1] |= (BX_VGA_THIS s.graphics_ctrl.latch[1] & and_mask);
- new_val[2] |= (BX_VGA_THIS s.graphics_ctrl.latch[2] & and_mask);
- new_val[3] |= (BX_VGA_THIS s.graphics_ctrl.latch[3] & and_mask);
+ case 0: // write
+ new_val[0] |= (value & 1) ? bitmask : 0;
+ new_val[1] |= (value & 2) ? bitmask : 0;
+ new_val[2] |= (value & 4) ? bitmask : 0;
+ new_val[3] |= (value & 8) ? bitmask : 0;
+ break;
+ case 1: // AND
+ new_val[0] |= (value & 1)
+ ? (BX_VGA_THIS s.graphics_ctrl.latch[0] & bitmask)
+ : 0;
+ new_val[1] |= (value & 2)
+ ? (BX_VGA_THIS s.graphics_ctrl.latch[1] & bitmask)
+ : 0;
+ new_val[2] |= (value & 4)
+ ? (BX_VGA_THIS s.graphics_ctrl.latch[2] & bitmask)
+ : 0;
+ new_val[3] |= (value & 8)
+ ? (BX_VGA_THIS s.graphics_ctrl.latch[3] & bitmask)
+ : 0;
+ break;
+ case 2: // OR
+ new_val[0] |= (value & 1)
+ ? bitmask
+ : (BX_VGA_THIS s.graphics_ctrl.latch[0] & bitmask);
+ new_val[1] |= (value & 2)
+ ? bitmask
+ : (BX_VGA_THIS s.graphics_ctrl.latch[1] & bitmask);
+ new_val[2] |= (value & 4)
+ ? bitmask
+ : (BX_VGA_THIS s.graphics_ctrl.latch[2] & bitmask);
+ new_val[3] |= (value & 8)
+ ? bitmask
+ : (BX_VGA_THIS s.graphics_ctrl.latch[3] & bitmask);
+ break;
+ case 3: // XOR
+ new_val[0] |= (value & 1)
+ ? (~BX_VGA_THIS s.graphics_ctrl.latch[0] & bitmask)
+ : (BX_VGA_THIS s.graphics_ctrl.latch[0] & bitmask);
+ new_val[1] |= (value & 2)
+ ? (~BX_VGA_THIS s.graphics_ctrl.latch[1] & bitmask)
+ : (BX_VGA_THIS s.graphics_ctrl.latch[1] & bitmask);
+ new_val[2] |= (value & 4)
+ ? (~BX_VGA_THIS s.graphics_ctrl.latch[2] & bitmask)
+ : (BX_VGA_THIS s.graphics_ctrl.latch[2] & bitmask);
+ new_val[3] |= (value & 8)
+ ? (~BX_VGA_THIS s.graphics_ctrl.latch[3] & bitmask)
+ : (BX_VGA_THIS s.graphics_ctrl.latch[3] & bitmask);
+ break;
}
- bitmask >>= 1;
- and_mask <<= 1;
}
- break;
+ break;
- case 3: /* write mode 3 */
- /* perform rotate on CPU data */
- value = (value >> BX_VGA_THIS s.graphics_ctrl.data_rotate) |
- (value << (8 - BX_VGA_THIS s.graphics_ctrl.data_rotate));
- bitmask = (value & BX_VGA_THIS s.graphics_ctrl.bitmask);
- for (i=0; i<4; i++ ) {
- new_val[i] = 0;
- }
- set_reset_b[0] = (BX_VGA_THIS s.graphics_ctrl.set_reset >> 0) & 0x01;
- set_reset_b[1] = (BX_VGA_THIS s.graphics_ctrl.set_reset >> 1) & 0x01;
- set_reset_b[2] = (BX_VGA_THIS s.graphics_ctrl.set_reset >> 2) & 0x01;
- set_reset_b[3] = (BX_VGA_THIS s.graphics_ctrl.set_reset >> 3) & 0x01;
- and_mask = 1;
- for (b=0; b<8; b++) {
- if (bitmask & 0x01) { /* bit-mask bit set, perform op */
- for (i=0; i<4; i++) {
- /* derive bit from set/reset register */
- /* (mch) I can't find any justification for this... */
- if ( /* (mch) */ 1 || ((BX_VGA_THIS s.graphics_ctrl.enable_set_reset >> i) & 0x01 )) {
- // (mch) My guess is that the function select logic should go here
- switch (BX_VGA_THIS s.graphics_ctrl.raster_op) {
- case 0: // write
- new_val[i] |= (set_reset_b[i] << b);
- break;
- case 1: // AND
- new_val[i] |= ((set_reset_b[i] << b) &
- BX_VGA_THIS s.graphics_ctrl.latch[i] & (1 << b));
- break;
- case 2: // OR
- new_val[i] |= (set_reset_b[i] << b) |
- (BX_VGA_THIS s.graphics_ctrl.latch[i] & (1 << b));
- break;
- case 3: // XOR
- new_val[i] |= ((set_reset_b[i] << b) ^
- BX_VGA_THIS s.graphics_ctrl.latch[i] & (1 << b));
- break;
- }
- }
- /* derive bit from rotated CPU data */
- else {
- new_val[i] |= (value & and_mask);
- }
- }
- }
- else { /* bit-mask bit clear, pass data thru from latch */
- new_val[0] |= (BX_VGA_THIS s.graphics_ctrl.latch[0] & and_mask);
- new_val[1] |= (BX_VGA_THIS s.graphics_ctrl.latch[1] & and_mask);
- new_val[2] |= (BX_VGA_THIS s.graphics_ctrl.latch[2] & and_mask);
- new_val[3] |= (BX_VGA_THIS s.graphics_ctrl.latch[3] & and_mask);
+ case 3: /* write mode 3 */
+ /* perform rotate on CPU data */
+ {
+ const Bit8u bitmask = BX_VGA_THIS s.graphics_ctrl.bitmask & value;
+ const Bit8u set_reset = BX_VGA_THIS s.graphics_ctrl.set_reset;
+
+ /* perform rotate on CPU data */
+ value = rdatp[value];
+
+ new_val[0] = BX_VGA_THIS s.graphics_ctrl.latch[0] & ~bitmask;
+ new_val[1] = BX_VGA_THIS s.graphics_ctrl.latch[1] & ~bitmask;
+ new_val[2] = BX_VGA_THIS s.graphics_ctrl.latch[2] & ~bitmask;
+ new_val[3] = BX_VGA_THIS s.graphics_ctrl.latch[3] & ~bitmask;
+
+ value &= bitmask;
+
+ switch (BX_VGA_THIS s.graphics_ctrl.raster_op) {
+ case 0: // write
+ new_val[0] |= (set_reset & 1) ? value : 0;
+ new_val[1] |= (set_reset & 2) ? value : 0;
+ new_val[2] |= (set_reset & 4) ? value : 0;
+ new_val[3] |= (set_reset & 8) ? value : 0;
+ break;
+ case 1: // AND
+ new_val[0] |= ((set_reset & 1) ? value : 0)
+ & BX_VGA_THIS s.graphics_ctrl.latch[0];
+ new_val[1] |= ((set_reset & 2) ? value : 0)
+ & BX_VGA_THIS s.graphics_ctrl.latch[1];
+ new_val[2] |= ((set_reset & 4) ? value : 0)
+ & BX_VGA_THIS s.graphics_ctrl.latch[2];
+ new_val[3] |= ((set_reset & 8) ? value : 0)
+ & BX_VGA_THIS s.graphics_ctrl.latch[3];
+ break;
+ case 2: // OR
+ new_val[0] |= ((set_reset & 1) ? value : 0)
+ | BX_VGA_THIS s.graphics_ctrl.latch[0];
+ new_val[1] |= ((set_reset & 2) ? value : 0)
+ | BX_VGA_THIS s.graphics_ctrl.latch[1];
+ new_val[2] |= ((set_reset & 4) ? value : 0)
+ | BX_VGA_THIS s.graphics_ctrl.latch[2];
+ new_val[3] |= ((set_reset & 8) ? value : 0)
+ | BX_VGA_THIS s.graphics_ctrl.latch[3];
+ break;
+ case 3: // XOR
+ new_val[0] |= ((set_reset & 1) ? value : 0)
+ ^ BX_VGA_THIS s.graphics_ctrl.latch[0];
+ new_val[1] |= ((set_reset & 2) ? value : 0)
+ ^ BX_VGA_THIS s.graphics_ctrl.latch[1];
+ new_val[2] |= ((set_reset & 4) ? value : 0)
+ ^ BX_VGA_THIS s.graphics_ctrl.latch[2];
+ new_val[3] |= ((set_reset & 8) ? value : 0)
+ ^ BX_VGA_THIS s.graphics_ctrl.latch[3];
+ break;
}
- bitmask >>= 1;
- and_mask <<= 1;
}
- break;
+ break;
- default:
- BX_PANIC(("vga_mem_write: write mode %u ?",
- (unsigned) BX_VGA_THIS s.graphics_ctrl.write_mode));
- }
+ default:
+ BX_PANIC(("vga_mem_write: write mode %u ?",
+ (unsigned) BX_VGA_THIS s.graphics_ctrl.write_mode));
+ }
- if (BX_VGA_THIS s.sequencer.map_mask & 0x0f) {
- BX_VGA_THIS s.vga_mem_updated = 1;
- if (BX_VGA_THIS s.sequencer.map_mask_bit[0])
- BX_VGA_THIS s.vga_memory[0*65536 + offset] = new_val[0];
- if (BX_VGA_THIS s.sequencer.map_mask_bit[1])
- BX_VGA_THIS s.vga_memory[1*65536 + offset] = new_val[1];
- if (BX_VGA_THIS s.sequencer.map_mask_bit[2]) {
- if ((!BX_VGA_THIS s.graphics_ctrl.graphics_alpha) &&
- ((offset & 0xe000) == BX_VGA_THIS s.charmap_address)) {
- bx_gui->set_text_charbyte((offset & 0x1fff), new_val[2]);
- }
- BX_VGA_THIS s.vga_memory[2*65536 + offset] = new_val[2];
- }
- if (BX_VGA_THIS s.sequencer.map_mask_bit[3])
- BX_VGA_THIS s.vga_memory[3*65536 + offset] = new_val[3];
-
- unsigned x_tileno, y_tileno;
-
- x_tileno = (offset % (BX_VGA_THIS s.scan_bits/8)) / (X_TILESIZE / 8);
- y_tileno = (offset / (BX_VGA_THIS s.scan_bits/8)) / Y_TILESIZE;
- SET_TILE_UPDATED (x_tileno, y_tileno, 1);
+ if (BX_VGA_THIS s.sequencer.map_mask & 0x0f) {
+ BX_VGA_THIS s.vga_mem_updated = 1;
+ if (BX_VGA_THIS s.sequencer.map_mask_bit[0])
+ BX_VGA_THIS s.vga_memory[0*65536 + offset] = new_val[0];
+ if (BX_VGA_THIS s.sequencer.map_mask_bit[1])
+ BX_VGA_THIS s.vga_memory[1*65536 + offset] = new_val[1];
+ if (BX_VGA_THIS s.sequencer.map_mask_bit[2])
+ BX_VGA_THIS s.vga_memory[2*65536 + offset] = new_val[2];
+ if (BX_VGA_THIS s.sequencer.map_mask_bit[3])
+ BX_VGA_THIS s.vga_memory[3*65536 + offset] = new_val[3];
+
+ {
+ unsigned x_tileno, y_tileno;
+
+ switch (BX_VGA_THIS s.scan_bits) {
+ case 320:
+ x_tileno = (offset % (320/8)) / (X_TILESIZE / 8);
+ y_tileno = (offset / (320/8)) / Y_TILESIZE;
+ break;
+ case 640:
+ x_tileno = (offset % (640/8)) / (X_TILESIZE / 8);
+ y_tileno = (offset / (640/8)) / Y_TILESIZE;
+ break;
+ }
+ //assert(x_tileno<(BX_NUM_X_TILES));
+ //assert(y_tileno<(BX_NUM_Y_TILES));
+ SET_TILE_UPDATED (x_tileno, y_tileno, 1);
+ }
}
}
@@ -2178,9 +2287,8 @@
BX_VGA_THIS s.vga_mem_updated = 1;
x1 = x0 + width - 1;
y1 = y0 + height - 1;
-
- for (yi=0; yi<480; yi+=Y_TILESIZE) {
- for (xi=0; xi<640; xi+=X_TILESIZE) {
+ for (unsigned yti=0,yi=0; yi<480; yi+=Y_TILESIZE,yti++) {
+ for (unsigned xti=0,xi=0; xi<640; xi+=X_TILESIZE,xti++) {
// is redraw rectangle outside x boundaries of this tile?
if (x1 < xi) continue;
if (x0 > (xi+X_TILESIZE-1)) continue;
--- /dev/null Sat Oct 19 13:09:11 2002
+++ iodev/vga_tables.h Thu Oct 31 00:44:08 2002
@@ -0,0 +1,313 @@
+/////////////////////////////////////////////////////////////////////////
+// $Id: patch.vga-mode2-speed-dohzono,v 1.2 2002-11-28 20:33:57 vruppert Exp $
+/////////////////////////////////////////////////////////////////////////
+//
+// Copyright (C) 2002 MandrakeSoft S.A.
+//
+// MandrakeSoft S.A.
+// 43, rue d'Aboukir
+// 75002 Paris - France
+// http://www.linux-mandrake.com/
+// http://www.mandrakesoft.com/
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+const Bit8u rdat[][0x100] = {
+{
+0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
+0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
+0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
+0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
+0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
+0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
+0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
+0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
+0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
+0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
+0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
+0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
+0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
+0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
+0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
+0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
+0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
+0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
+0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
+0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
+0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
+0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
+0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
+0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
+0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
+},{
+0x00, 0x80, 0x01, 0x81, 0x02, 0x82, 0x03, 0x83,
+0x04, 0x84, 0x05, 0x85, 0x06, 0x86, 0x07, 0x87,
+0x08, 0x88, 0x09, 0x89, 0x0a, 0x8a, 0x0b, 0x8b,
+0x0c, 0x8c, 0x0d, 0x8d, 0x0e, 0x8e, 0x0f, 0x8f,
+0x10, 0x90, 0x11, 0x91, 0x12, 0x92, 0x13, 0x93,
+0x14, 0x94, 0x15, 0x95, 0x16, 0x96, 0x17, 0x97,
+0x18, 0x98, 0x19, 0x99, 0x1a, 0x9a, 0x1b, 0x9b,
+0x1c, 0x9c, 0x1d, 0x9d, 0x1e, 0x9e, 0x1f, 0x9f,
+0x20, 0xa0, 0x21, 0xa1, 0x22, 0xa2, 0x23, 0xa3,
+0x24, 0xa4, 0x25, 0xa5, 0x26, 0xa6, 0x27, 0xa7,
+0x28, 0xa8, 0x29, 0xa9, 0x2a, 0xaa, 0x2b, 0xab,
+0x2c, 0xac, 0x2d, 0xad, 0x2e, 0xae, 0x2f, 0xaf,
+0x30, 0xb0, 0x31, 0xb1, 0x32, 0xb2, 0x33, 0xb3,
+0x34, 0xb4, 0x35, 0xb5, 0x36, 0xb6, 0x37, 0xb7,
+0x38, 0xb8, 0x39, 0xb9, 0x3a, 0xba, 0x3b, 0xbb,
+0x3c, 0xbc, 0x3d, 0xbd, 0x3e, 0xbe, 0x3f, 0xbf,
+0x40, 0xc0, 0x41, 0xc1, 0x42, 0xc2, 0x43, 0xc3,
+0x44, 0xc4, 0x45, 0xc5, 0x46, 0xc6, 0x47, 0xc7,
+0x48, 0xc8, 0x49, 0xc9, 0x4a, 0xca, 0x4b, 0xcb,
+0x4c, 0xcc, 0x4d, 0xcd, 0x4e, 0xce, 0x4f, 0xcf,
+0x50, 0xd0, 0x51, 0xd1, 0x52, 0xd2, 0x53, 0xd3,
+0x54, 0xd4, 0x55, 0xd5, 0x56, 0xd6, 0x57, 0xd7,
+0x58, 0xd8, 0x59, 0xd9, 0x5a, 0xda, 0x5b, 0xdb,
+0x5c, 0xdc, 0x5d, 0xdd, 0x5e, 0xde, 0x5f, 0xdf,
+0x60, 0xe0, 0x61, 0xe1, 0x62, 0xe2, 0x63, 0xe3,
+0x64, 0xe4, 0x65, 0xe5, 0x66, 0xe6, 0x67, 0xe7,
+0x68, 0xe8, 0x69, 0xe9, 0x6a, 0xea, 0x6b, 0xeb,
+0x6c, 0xec, 0x6d, 0xed, 0x6e, 0xee, 0x6f, 0xef,
+0x70, 0xf0, 0x71, 0xf1, 0x72, 0xf2, 0x73, 0xf3,
+0x74, 0xf4, 0x75, 0xf5, 0x76, 0xf6, 0x77, 0xf7,
+0x78, 0xf8, 0x79, 0xf9, 0x7a, 0xfa, 0x7b, 0xfb,
+0x7c, 0xfc, 0x7d, 0xfd, 0x7e, 0xfe, 0x7f, 0xff,
+},{
+0x00, 0x40, 0x80, 0xc0, 0x01, 0x41, 0x81, 0xc1,
+0x02, 0x42, 0x82, 0xc2, 0x03, 0x43, 0x83, 0xc3,
+0x04, 0x44, 0x84, 0xc4, 0x05, 0x45, 0x85, 0xc5,
+0x06, 0x46, 0x86, 0xc6, 0x07, 0x47, 0x87, 0xc7,
+0x08, 0x48, 0x88, 0xc8, 0x09, 0x49, 0x89, 0xc9,
+0x0a, 0x4a, 0x8a, 0xca, 0x0b, 0x4b, 0x8b, 0xcb,
+0x0c, 0x4c, 0x8c, 0xcc, 0x0d, 0x4d, 0x8d, 0xcd,
+0x0e, 0x4e, 0x8e, 0xce, 0x0f, 0x4f, 0x8f, 0xcf,
+0x10, 0x50, 0x90, 0xd0, 0x11, 0x51, 0x91, 0xd1,
+0x12, 0x52, 0x92, 0xd2, 0x13, 0x53, 0x93, 0xd3,
+0x14, 0x54, 0x94, 0xd4, 0x15, 0x55, 0x95, 0xd5,
+0x16, 0x56, 0x96, 0xd6, 0x17, 0x57, 0x97, 0xd7,
+0x18, 0x58, 0x98, 0xd8, 0x19, 0x59, 0x99, 0xd9,
+0x1a, 0x5a, 0x9a, 0xda, 0x1b, 0x5b, 0x9b, 0xdb,
+0x1c, 0x5c, 0x9c, 0xdc, 0x1d, 0x5d, 0x9d, 0xdd,
+0x1e, 0x5e, 0x9e, 0xde, 0x1f, 0x5f, 0x9f, 0xdf,
+0x20, 0x60, 0xa0, 0xe0, 0x21, 0x61, 0xa1, 0xe1,
+0x22, 0x62, 0xa2, 0xe2, 0x23, 0x63, 0xa3, 0xe3,
+0x24, 0x64, 0xa4, 0xe4, 0x25, 0x65, 0xa5, 0xe5,
+0x26, 0x66, 0xa6, 0xe6, 0x27, 0x67, 0xa7, 0xe7,
+0x28, 0x68, 0xa8, 0xe8, 0x29, 0x69, 0xa9, 0xe9,
+0x2a, 0x6a, 0xaa, 0xea, 0x2b, 0x6b, 0xab, 0xeb,
+0x2c, 0x6c, 0xac, 0xec, 0x2d, 0x6d, 0xad, 0xed,
+0x2e, 0x6e, 0xae, 0xee, 0x2f, 0x6f, 0xaf, 0xef,
+0x30, 0x70, 0xb0, 0xf0, 0x31, 0x71, 0xb1, 0xf1,
+0x32, 0x72, 0xb2, 0xf2, 0x33, 0x73, 0xb3, 0xf3,
+0x34, 0x74, 0xb4, 0xf4, 0x35, 0x75, 0xb5, 0xf5,
+0x36, 0x76, 0xb6, 0xf6, 0x37, 0x77, 0xb7, 0xf7,
+0x38, 0x78, 0xb8, 0xf8, 0x39, 0x79, 0xb9, 0xf9,
+0x3a, 0x7a, 0xba, 0xfa, 0x3b, 0x7b, 0xbb, 0xfb,
+0x3c, 0x7c, 0xbc, 0xfc, 0x3d, 0x7d, 0xbd, 0xfd,
+0x3e, 0x7e, 0xbe, 0xfe, 0x3f, 0x7f, 0xbf, 0xff,
+},{
+0x00, 0x20, 0x40, 0x60, 0x80, 0xa0, 0xc0, 0xe0,
+0x01, 0x21, 0x41, 0x61, 0x81, 0xa1, 0xc1, 0xe1,
+0x02, 0x22, 0x42, 0x62, 0x82, 0xa2, 0xc2, 0xe2,
+0x03, 0x23, 0x43, 0x63, 0x83, 0xa3, 0xc3, 0xe3,
+0x04, 0x24, 0x44, 0x64, 0x84, 0xa4, 0xc4, 0xe4,
+0x05, 0x25, 0x45, 0x65, 0x85, 0xa5, 0xc5, 0xe5,
+0x06, 0x26, 0x46, 0x66, 0x86, 0xa6, 0xc6, 0xe6,
+0x07, 0x27, 0x47, 0x67, 0x87, 0xa7, 0xc7, 0xe7,
+0x08, 0x28, 0x48, 0x68, 0x88, 0xa8, 0xc8, 0xe8,
+0x09, 0x29, 0x49, 0x69, 0x89, 0xa9, 0xc9, 0xe9,
+0x0a, 0x2a, 0x4a, 0x6a, 0x8a, 0xaa, 0xca, 0xea,
+0x0b, 0x2b, 0x4b, 0x6b, 0x8b, 0xab, 0xcb, 0xeb,
+0x0c, 0x2c, 0x4c, 0x6c, 0x8c, 0xac, 0xcc, 0xec,
+0x0d, 0x2d, 0x4d, 0x6d, 0x8d, 0xad, 0xcd, 0xed,
+0x0e, 0x2e, 0x4e, 0x6e, 0x8e, 0xae, 0xce, 0xee,
+0x0f, 0x2f, 0x4f, 0x6f, 0x8f, 0xaf, 0xcf, 0xef,
+0x10, 0x30, 0x50, 0x70, 0x90, 0xb0, 0xd0, 0xf0,
+0x11, 0x31, 0x51, 0x71, 0x91, 0xb1, 0xd1, 0xf1,
+0x12, 0x32, 0x52, 0x72, 0x92, 0xb2, 0xd2, 0xf2,
+0x13, 0x33, 0x53, 0x73, 0x93, 0xb3, 0xd3, 0xf3,
+0x14, 0x34, 0x54, 0x74, 0x94, 0xb4, 0xd4, 0xf4,
+0x15, 0x35, 0x55, 0x75, 0x95, 0xb5, 0xd5, 0xf5,
+0x16, 0x36, 0x56, 0x76, 0x96, 0xb6, 0xd6, 0xf6,
+0x17, 0x37, 0x57, 0x77, 0x97, 0xb7, 0xd7, 0xf7,
+0x18, 0x38, 0x58, 0x78, 0x98, 0xb8, 0xd8, 0xf8,
+0x19, 0x39, 0x59, 0x79, 0x99, 0xb9, 0xd9, 0xf9,
+0x1a, 0x3a, 0x5a, 0x7a, 0x9a, 0xba, 0xda, 0xfa,
+0x1b, 0x3b, 0x5b, 0x7b, 0x9b, 0xbb, 0xdb, 0xfb,
+0x1c, 0x3c, 0x5c, 0x7c, 0x9c, 0xbc, 0xdc, 0xfc,
+0x1d, 0x3d, 0x5d, 0x7d, 0x9d, 0xbd, 0xdd, 0xfd,
+0x1e, 0x3e, 0x5e, 0x7e, 0x9e, 0xbe, 0xde, 0xfe,
+0x1f, 0x3f, 0x5f, 0x7f, 0x9f, 0xbf, 0xdf, 0xff,
+},{
+0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70,
+0x80, 0x90, 0xa0, 0xb0, 0xc0, 0xd0, 0xe0, 0xf0,
+0x01, 0x11, 0x21, 0x31, 0x41, 0x51, 0x61, 0x71,
+0x81, 0x91, 0xa1, 0xb1, 0xc1, 0xd1, 0xe1, 0xf1,
+0x02, 0x12, 0x22, 0x32, 0x42, 0x52, 0x62, 0x72,
+0x82, 0x92, 0xa2, 0xb2, 0xc2, 0xd2, 0xe2, 0xf2,
+0x03, 0x13, 0x23, 0x33, 0x43, 0x53, 0x63, 0x73,
+0x83, 0x93, 0xa3, 0xb3, 0xc3, 0xd3, 0xe3, 0xf3,
+0x04, 0x14, 0x24, 0x34, 0x44, 0x54, 0x64, 0x74,
+0x84, 0x94, 0xa4, 0xb4, 0xc4, 0xd4, 0xe4, 0xf4,
+0x05, 0x15, 0x25, 0x35, 0x45, 0x55, 0x65, 0x75,
+0x85, 0x95, 0xa5, 0xb5, 0xc5, 0xd5, 0xe5, 0xf5,
+0x06, 0x16, 0x26, 0x36, 0x46, 0x56, 0x66, 0x76,
+0x86, 0x96, 0xa6, 0xb6, 0xc6, 0xd6, 0xe6, 0xf6,
+0x07, 0x17, 0x27, 0x37, 0x47, 0x57, 0x67, 0x77,
+0x87, 0x97, 0xa7, 0xb7, 0xc7, 0xd7, 0xe7, 0xf7,
+0x08, 0x18, 0x28, 0x38, 0x48, 0x58, 0x68, 0x78,
+0x88, 0x98, 0xa8, 0xb8, 0xc8, 0xd8, 0xe8, 0xf8,
+0x09, 0x19, 0x29, 0x39, 0x49, 0x59, 0x69, 0x79,
+0x89, 0x99, 0xa9, 0xb9, 0xc9, 0xd9, 0xe9, 0xf9,
+0x0a, 0x1a, 0x2a, 0x3a, 0x4a, 0x5a, 0x6a, 0x7a,
+0x8a, 0x9a, 0xaa, 0xba, 0xca, 0xda, 0xea, 0xfa,
+0x0b, 0x1b, 0x2b, 0x3b, 0x4b, 0x5b, 0x6b, 0x7b,
+0x8b, 0x9b, 0xab, 0xbb, 0xcb, 0xdb, 0xeb, 0xfb,
+0x0c, 0x1c, 0x2c, 0x3c, 0x4c, 0x5c, 0x6c, 0x7c,
+0x8c, 0x9c, 0xac, 0xbc, 0xcc, 0xdc, 0xec, 0xfc,
+0x0d, 0x1d, 0x2d, 0x3d, 0x4d, 0x5d, 0x6d, 0x7d,
+0x8d, 0x9d, 0xad, 0xbd, 0xcd, 0xdd, 0xed, 0xfd,
+0x0e, 0x1e, 0x2e, 0x3e, 0x4e, 0x5e, 0x6e, 0x7e,
+0x8e, 0x9e, 0xae, 0xbe, 0xce, 0xde, 0xee, 0xfe,
+0x0f, 0x1f, 0x2f, 0x3f, 0x4f, 0x5f, 0x6f, 0x7f,
+0x8f, 0x9f, 0xaf, 0xbf, 0xcf, 0xdf, 0xef, 0xff,
+},{
+0x00, 0x08, 0x10, 0x18, 0x20, 0x28, 0x30, 0x38,
+0x40, 0x48, 0x50, 0x58, 0x60, 0x68, 0x70, 0x78,
+0x80, 0x88, 0x90, 0x98, 0xa0, 0xa8, 0xb0, 0xb8,
+0xc0, 0xc8, 0xd0, 0xd8, 0xe0, 0xe8, 0xf0, 0xf8,
+0x01, 0x09, 0x11, 0x19, 0x21, 0x29, 0x31, 0x39,
+0x41, 0x49, 0x51, 0x59, 0x61, 0x69, 0x71, 0x79,
+0x81, 0x89, 0x91, 0x99, 0xa1, 0xa9, 0xb1, 0xb9,
+0xc1, 0xc9, 0xd1, 0xd9, 0xe1, 0xe9, 0xf1, 0xf9,
+0x02, 0x0a, 0x12, 0x1a, 0x22, 0x2a, 0x32, 0x3a,
+0x42, 0x4a, 0x52, 0x5a, 0x62, 0x6a, 0x72, 0x7a,
+0x82, 0x8a, 0x92, 0x9a, 0xa2, 0xaa, 0xb2, 0xba,
+0xc2, 0xca, 0xd2, 0xda, 0xe2, 0xea, 0xf2, 0xfa,
+0x03, 0x0b, 0x13, 0x1b, 0x23, 0x2b, 0x33, 0x3b,
+0x43, 0x4b, 0x53, 0x5b, 0x63, 0x6b, 0x73, 0x7b,
+0x83, 0x8b, 0x93, 0x9b, 0xa3, 0xab, 0xb3, 0xbb,
+0xc3, 0xcb, 0xd3, 0xdb, 0xe3, 0xeb, 0xf3, 0xfb,
+0x04, 0x0c, 0x14, 0x1c, 0x24, 0x2c, 0x34, 0x3c,
+0x44, 0x4c, 0x54, 0x5c, 0x64, 0x6c, 0x74, 0x7c,
+0x84, 0x8c, 0x94, 0x9c, 0xa4, 0xac, 0xb4, 0xbc,
+0xc4, 0xcc, 0xd4, 0xdc, 0xe4, 0xec, 0xf4, 0xfc,
+0x05, 0x0d, 0x15, 0x1d, 0x25, 0x2d, 0x35, 0x3d,
+0x45, 0x4d, 0x55, 0x5d, 0x65, 0x6d, 0x75, 0x7d,
+0x85, 0x8d, 0x95, 0x9d, 0xa5, 0xad, 0xb5, 0xbd,
+0xc5, 0xcd, 0xd5, 0xdd, 0xe5, 0xed, 0xf5, 0xfd,
+0x06, 0x0e, 0x16, 0x1e, 0x26, 0x2e, 0x36, 0x3e,
+0x46, 0x4e, 0x56, 0x5e, 0x66, 0x6e, 0x76, 0x7e,
+0x86, 0x8e, 0x96, 0x9e, 0xa6, 0xae, 0xb6, 0xbe,
+0xc6, 0xce, 0xd6, 0xde, 0xe6, 0xee, 0xf6, 0xfe,
+0x07, 0x0f, 0x17, 0x1f, 0x27, 0x2f, 0x37, 0x3f,
+0x47, 0x4f, 0x57, 0x5f, 0x67, 0x6f, 0x77, 0x7f,
+0x87, 0x8f, 0x97, 0x9f, 0xa7, 0xaf, 0xb7, 0xbf,
+0xc7, 0xcf, 0xd7, 0xdf, 0xe7, 0xef, 0xf7, 0xff,
+},{
+0x00, 0x04, 0x08, 0x0c, 0x10, 0x14, 0x18, 0x1c,
+0x20, 0x24, 0x28, 0x2c, 0x30, 0x34, 0x38, 0x3c,
+0x40, 0x44, 0x48, 0x4c, 0x50, 0x54, 0x58, 0x5c,
+0x60, 0x64, 0x68, 0x6c, 0x70, 0x74, 0x78, 0x7c,
+0x80, 0x84, 0x88, 0x8c, 0x90, 0x94, 0x98, 0x9c,
+0xa0, 0xa4, 0xa8, 0xac, 0xb0, 0xb4, 0xb8, 0xbc,
+0xc0, 0xc4, 0xc8, 0xcc, 0xd0, 0xd4, 0xd8, 0xdc,
+0xe0, 0xe4, 0xe8, 0xec, 0xf0, 0xf4, 0xf8, 0xfc,
+0x01, 0x05, 0x09, 0x0d, 0x11, 0x15, 0x19, 0x1d,
+0x21, 0x25, 0x29, 0x2d, 0x31, 0x35, 0x39, 0x3d,
+0x41, 0x45, 0x49, 0x4d, 0x51, 0x55, 0x59, 0x5d,
+0x61, 0x65, 0x69, 0x6d, 0x71, 0x75, 0x79, 0x7d,
+0x81, 0x85, 0x89, 0x8d, 0x91, 0x95, 0x99, 0x9d,
+0xa1, 0xa5, 0xa9, 0xad, 0xb1, 0xb5, 0xb9, 0xbd,
+0xc1, 0xc5, 0xc9, 0xcd, 0xd1, 0xd5, 0xd9, 0xdd,
+0xe1, 0xe5, 0xe9, 0xed, 0xf1, 0xf5, 0xf9, 0xfd,
+0x02, 0x06, 0x0a, 0x0e, 0x12, 0x16, 0x1a, 0x1e,
+0x22, 0x26, 0x2a, 0x2e, 0x32, 0x36, 0x3a, 0x3e,
+0x42, 0x46, 0x4a, 0x4e, 0x52, 0x56, 0x5a, 0x5e,
+0x62, 0x66, 0x6a, 0x6e, 0x72, 0x76, 0x7a, 0x7e,
+0x82, 0x86, 0x8a, 0x8e, 0x92, 0x96, 0x9a, 0x9e,
+0xa2, 0xa6, 0xaa, 0xae, 0xb2, 0xb6, 0xba, 0xbe,
+0xc2, 0xc6, 0xca, 0xce, 0xd2, 0xd6, 0xda, 0xde,
+0xe2, 0xe6, 0xea, 0xee, 0xf2, 0xf6, 0xfa, 0xfe,
+0x03, 0x07, 0x0b, 0x0f, 0x13, 0x17, 0x1b, 0x1f,
+0x23, 0x27, 0x2b, 0x2f, 0x33, 0x37, 0x3b, 0x3f,
+0x43, 0x47, 0x4b, 0x4f, 0x53, 0x57, 0x5b, 0x5f,
+0x63, 0x67, 0x6b, 0x6f, 0x73, 0x77, 0x7b, 0x7f,
+0x83, 0x87, 0x8b, 0x8f, 0x93, 0x97, 0x9b, 0x9f,
+0xa3, 0xa7, 0xab, 0xaf, 0xb3, 0xb7, 0xbb, 0xbf,
+0xc3, 0xc7, 0xcb, 0xcf, 0xd3, 0xd7, 0xdb, 0xdf,
+0xe3, 0xe7, 0xeb, 0xef, 0xf3, 0xf7, 0xfb, 0xff,
+},{
+0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e,
+0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
+0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e,
+0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e,
+0x40, 0x42, 0x44, 0x46, 0x48, 0x4a, 0x4c, 0x4e,
+0x50, 0x52, 0x54, 0x56, 0x58, 0x5a, 0x5c, 0x5e,
+0x60, 0x62, 0x64, 0x66, 0x68, 0x6a, 0x6c, 0x6e,
+0x70, 0x72, 0x74, 0x76, 0x78, 0x7a, 0x7c, 0x7e,
+0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c, 0x8e,
+0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9c, 0x9e,
+0xa0, 0xa2, 0xa4, 0xa6, 0xa8, 0xaa, 0xac, 0xae,
+0xb0, 0xb2, 0xb4, 0xb6, 0xb8, 0xba, 0xbc, 0xbe,
+0xc0, 0xc2, 0xc4, 0xc6, 0xc8, 0xca, 0xcc, 0xce,
+0xd0, 0xd2, 0xd4, 0xd6, 0xd8, 0xda, 0xdc, 0xde,
+0xe0, 0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec, 0xee,
+0xf0, 0xf2, 0xf4, 0xf6, 0xf8, 0xfa, 0xfc, 0xfe,
+0x01, 0x03, 0x05, 0x07, 0x09, 0x0b, 0x0d, 0x0f,
+0x11, 0x13, 0x15, 0x17, 0x19, 0x1b, 0x1d, 0x1f,
+0x21, 0x23, 0x25, 0x27, 0x29, 0x2b, 0x2d, 0x2f,
+0x31, 0x33, 0x35, 0x37, 0x39, 0x3b, 0x3d, 0x3f,
+0x41, 0x43, 0x45, 0x47, 0x49, 0x4b, 0x4d, 0x4f,
+0x51, 0x53, 0x55, 0x57, 0x59, 0x5b, 0x5d, 0x5f,
+0x61, 0x63, 0x65, 0x67, 0x69, 0x6b, 0x6d, 0x6f,
+0x71, 0x73, 0x75, 0x77, 0x79, 0x7b, 0x7d, 0x7f,
+0x81, 0x83, 0x85, 0x87, 0x89, 0x8b, 0x8d, 0x8f,
+0x91, 0x93, 0x95, 0x97, 0x99, 0x9b, 0x9d, 0x9f,
+0xa1, 0xa3, 0xa5, 0xa7, 0xa9, 0xab, 0xad, 0xaf,
+0xb1, 0xb3, 0xb5, 0xb7, 0xb9, 0xbb, 0xbd, 0xbf,
+0xc1, 0xc3, 0xc5, 0xc7, 0xc9, 0xcb, 0xcd, 0xcf,
+0xd1, 0xd3, 0xd5, 0xd7, 0xd9, 0xdb, 0xdd, 0xdf,
+0xe1, 0xe3, 0xe5, 0xe7, 0xe9, 0xeb, 0xed, 0xef,
+0xf1, 0xf3, 0xf5, 0xf7, 0xf9, 0xfb, 0xfd, 0xff,
+}
+};
+
+
+static const Bit8u ccdat[16][4] = {
+ { 0x00, 0x00, 0x00, 0x00 },
+ { 0xff, 0x00, 0x00, 0x00 },
+ { 0x00, 0xff, 0x00, 0x00 },
+ { 0xff, 0xff, 0x00, 0x00 },
+ { 0x00, 0x00, 0xff, 0x00 },
+ { 0xff, 0x00, 0xff, 0x00 },
+ { 0x00, 0xff, 0xff, 0x00 },
+ { 0xff, 0xff, 0xff, 0x00 },
+ { 0x00, 0x00, 0x00, 0xff },
+ { 0xff, 0x00, 0x00, 0xff },
+ { 0x00, 0xff, 0x00, 0xff },
+ { 0xff, 0xff, 0x00, 0xff },
+ { 0x00, 0x00, 0xff, 0xff },
+ { 0xff, 0x00, 0xff, 0xff },
+ { 0x00, 0xff, 0xff, 0xff },
+ { 0xff, 0xff, 0xff, 0xff },
+};
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