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CXX = g++
CXXFLAGS = -g -O2 -Wall -I../lua/include -I../lua/src -DLUA_NUM_TYPE=float
LDFLAGS = -g
LIBS = -L../lua/lib -llua
delua: delua.o
$(CXX) $(LDFLAGS) -o $@ delua.o $(LIBS)
.c.o:
$(CXX) $(CXXFLAGS) -c $<

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// Residual - Virtual machine to run LucasArts' 3D adventure games
// Copyright (C) 2003 The ScummVM-Residual Team (www.scummvm.org)
//
// 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 2.1 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
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <assert.h>
#include <ppm.h>
int32_t read_LEint32(FILE *f) {
unsigned char c[4];
fread(c, 1, 4, f);
return (c[0]) | (c[1] << 8) | (c[2] << 16) | (c[3] << 24);
}
void read_header(FILE *in, int *codec, int *num_images, int *format) {
char magic[8];
fread(magic, 1, 8, in);
if (memcmp(magic, "BM F\0\0\0", 8) != 0) {
fprintf(stderr, "not a bitmap file\n");
exit(1);
}
*codec = read_LEint32(in);
read_LEint32(in);
*num_images = read_LEint32(in);
read_LEint32(in); /* ignore x offset */
read_LEint32(in); /* ignore y offset */
read_LEint32(in);
*format = read_LEint32(in);
fseek(in, 128, SEEK_SET);
}
void read_data_codec0(FILE *in, int width, int height, unsigned char *result) {
fread(result, 1, width * height * 2, in);
}
void read_data_codec3(FILE *in, int size, unsigned char *result) {
unsigned char *data;
const unsigned char *data_ptr;
int bitstr_val, bitstr_len;
int offset, len;
data = malloc(size);
fread(data, 1, size, in);
bitstr_val = data[0] | (data[1] << 8);
bitstr_len = 16;
data_ptr = data + 2;
#define GET_BIT ({ \
int bit_result = bitstr_val & 1; \
bitstr_val >>= 1; \
bitstr_len--; \
if (bitstr_len == 0) { \
bitstr_val = data_ptr[0] | (data_ptr[1] << 8); \
bitstr_len = 16; \
data_ptr += 2; \
} \
bit_result; \
})
for (;;) {
if (GET_BIT == 1)
*result++ = *data_ptr++;
else {
if (GET_BIT == 0) {
len = GET_BIT * 2;
len += GET_BIT;
len += 3;
offset = *data_ptr - 0x100;
data_ptr++;
}
else {
offset = data_ptr[0] | ((data_ptr[1] & 0xf0) << 4);
offset -= 0x1000;
len = (data_ptr[1] & 0xf) + 3;
data_ptr += 2;
if (len == 3) {
len = *data_ptr++;
len++;
if (len == 1) {
free(data);
return;
}
}
}
while (len > 0) {
*result = result[offset];
result++;
len--;
}
}
}
}
void write_img(pixel **img, const char *fname, int img_num,
int width, int height, int maxval) {
const char *basename;
char newname[1024];
FILE *out;
basename = strrchr(fname, '/');
if (basename != NULL)
basename++;
else
basename = fname;
strcpy(newname, basename);
if (strlen(newname) > 3 &&
strcasecmp(newname + strlen(newname) - 3, ".bm") == 0)
newname[strlen(newname) - 3] = '\0';
else if (strlen(newname) > 4 &&
strcasecmp(newname + strlen(newname) - 4, ".zbm") == 0) {
newname[strlen(newname) - 4] = '\0';
strcat(newname, "_z");
}
sprintf(newname + strlen(newname), "_%d.ppm", img_num);
out = fopen(newname, "wb");
if (out == NULL) {
perror(newname);
exit(1);
}
ppm_writeppm(out, img, width, height, maxval, 0);
fclose(out);
}
pixel **toimg_fmt1(const unsigned char *data, int width, int height) {
pixel **result;
int x, y;
int r, g, b;
result = ppm_allocarray(width, height);
for (y = 0; y < height; y++)
for (x = 0; x < width; x++) {
r = data[1] >> 3;
r = (r << 3) | (r >> 2);
g = ((data[1] & 7) << 3) | (data[0] >> 5);
g = (g << 2) | (g >> 4);
b = data[0] & 0x1f;
b = (b << 3) | (b >> 2);
PPM_ASSIGN(result[y][x], r, g, b);
data += 2;
}
return result;
}
pixel **toimg_fmt5(const unsigned char *data, int width, int height) {
pixel **result;
int x, y;
unsigned short gray;
result = ppm_allocarray(width, height);
for (y = 0; y < height; y++)
for (x = 0; x < width; x++) {
/* gray = data[0] | (data[1] << 8); */
gray = data[1];
PPM_ASSIGN(result[y][x], gray, gray, gray);
data += 2;
}
return result;
}
void process_file(const char *fname) {
FILE *in;
int codec, num_images, format;
int i;
int width, height, size, maxval;
unsigned char *data;
pixel **img;
in = fopen(fname, "rb");
if (in == NULL) {
perror(fname);
exit(1);
}
read_header(in, &codec, &num_images, &format);
for (i = 0; i < num_images; i++) {
width = read_LEint32(in);
height = read_LEint32(in);
data = malloc(width * height * 2);
if (codec == 0)
read_data_codec0(in, width, height, data);
else if (codec == 3) {
size = read_LEint32(in);
read_data_codec3(in, size, data);
}
else {
fprintf(stderr, "%s: unsupported codec %d\n", fname, codec);
exit(1);
}
if (format == 1) {
img = toimg_fmt1(data, width, height);
maxval = 255;
}
else if (format == 5) {
img = toimg_fmt5(data, width, height);
maxval = 255;
}
else {
fprintf(stderr, "%s: unsupported format %d\n", fname, format);
exit(1);
}
write_img(img, fname, i, width, height, maxval);
free(data);
ppm_freearray(img, height);
}
fclose(in);
}
int main(int argc, char **argv) {
int i;
ppm_init(&argc, argv);
for (i = 1; i < argc; i++)
process_file(argv[i]);
return 0;
}

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// Residual - Virtual machine to run LucasArts' 3D adventure games
// Copyright (C) 2003 The ScummVM-Residual Team (www.scummvm.org)
//
// 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 2.1 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
#include <cstdio>
#include <cstring>
int get_be_uint32(char *pos) {
unsigned char *ucpos = reinterpret_cast<unsigned char *>(pos);
return (ucpos[0] << 24) | (ucpos[1] << 16) | (ucpos[2] << 8) | ucpos[3];
}
void write_le_uint32(unsigned val) {
putc(val, stdout);
putc(val >> 8, stdout);
putc(val >> 16, stdout);
putc(val >> 24, stdout);
}
void write_le_uint16(unsigned short val) {
putc(val, stdout);
putc(val >> 8, stdout);
}
int main() {
char block[1024];
fread(block, 8, 1, stdin); // skip iMUS header
fread(block, 8, 1, stdin); // read MAP header
int mapSize = get_be_uint32(block + 4);
int numBits = 16, rate = 22050, channels = 2;
for (int mapPos = 0; mapPos < mapSize; ) {
fread(block, 8, 1, stdin);
int blockSize = get_be_uint32(block + 4);
if (memcmp(block, "FRMT", 4) == 0) {
fread(block, blockSize, 1, stdin);
numBits = get_be_uint32(block + 8);
rate = get_be_uint32(block + 12);
channels = get_be_uint32(block + 16);
}
else
fread(block, blockSize, 1, stdin);
mapPos += (blockSize + 8);
}
fread(block, 8, 1, stdin);
int dataSize = get_be_uint32(block + 4);
fputs("RIFF", stdout);
write_le_uint32(dataSize + 36);
fputs("WAVEfmt ", stdout);
write_le_uint32(16);
write_le_uint16(1);
write_le_uint16(channels);
write_le_uint32(rate);
write_le_uint32(channels * rate * (numBits / 8));
write_le_uint16(channels * (numBits / 8));
write_le_uint16(numBits);
fputs("data", stdout);
write_le_uint32(dataSize);
while (dataSize > 1024) {
fread(block, 1024, 1, stdin);
fwrite(block, 1024, 1, stdout);
dataSize -= 1024;
}
fread(block, dataSize, 1, stdin);
fwrite(block, dataSize, 1, stdout);
return 0;
}

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// Residual - Virtual machine to run LucasArts' 3D adventure games
// Copyright (C) 2003 The ScummVM-Residual Team (www.scummvm.org)
//
// 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 2.1 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
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char *argv[]) {
unsigned i = atoi(argv[1]);
float *f = &i;
printf("%g\n", *f);
return 0;
}

127
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// Residual - Virtual machine to run LucasArts' 3D adventure games
// Copyright (C) 2003 The ScummVM-Residual Team (www.scummvm.org)
//
// 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 2.1 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
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <ppm.h>
static pixel cmap[256];
int32_t read_LEint32(FILE *f) {
unsigned char c[4];
int i;
fread(c, 1, 4, f);
return (c[0]) | (c[1] << 8) | (c[2] << 16) | (c[3] << 24);
}
void read_cmp(const char *fname) {
unsigned char col[3];
FILE *cmp;
int i;
cmp = fopen(fname, "r");
if (cmp == NULL) {
perror(fname);
exit(1);
}
fseek(cmp, 48, SEEK_SET);
for (i = 0; i < 256; i++) {
col[0] = getc(cmp); col[1] = getc(cmp); col[2] = getc(cmp);
PPM_ASSIGN(cmap[i], col[0], col[1], col[2]);
}
fclose(cmp);
}
void write_img(FILE *f, const char *fname, int n, int num_img) {
FILE *out;
int32_t width, height;
int x, y;
unsigned char p;
pixel **img;
char newname[1024];
const char *basename;
fseek(f, 116 + 40 * (num_img - 1), SEEK_SET);
width = read_LEint32(f);
height = read_LEint32(f);
img = ppm_allocarray(width, height);
fseek(f, 100 + 40 * num_img + (width * height + 24) * n, SEEK_SET);
for (y = 0; y < height; y++)
for (x = 0; x < width; x++) {
p = getc(f);
img[y][x] = cmap[p];
}
basename = strrchr(fname, '/');
if (basename != NULL)
basename++;
else
basename = fname;
strcpy(newname, basename);
if (strlen(newname) > 4 &&
strcasecmp(newname + strlen(newname) - 4, ".mat") == 0)
newname[strlen(newname) - 4] = '\0';
sprintf(newname + strlen(newname), "_%d.ppm", n);
out = fopen(newname, "wb");
if (out == NULL) {
perror(newname);
exit(1);
}
ppm_writeppm(out, img, width, height, 255, 0);
ppm_freearray(img, height);
fclose(out);
}
void process_file(const char *fname) {
FILE *in;
int32_t num_img;
int i;
in = fopen(fname, "rb");
if (in == NULL) {
perror(fname);
exit(1);
}
fseek(in, 12, SEEK_SET);
num_img = read_LEint32(in);
for (i = 0; i < num_img; i++)
write_img(in, fname, i, num_img);
fclose(in);
}
int main(int argc, char **argv) {
int i;
ppm_init(&argc, argv);
for (i = 0; i < 256; i++)
PPM_ASSIGN(cmap[i], i, i, i);
i = 1;
if (argc >= 3 && strncmp(argv[1], "-c", 2) == 0) {
read_cmp(argv[2]);
i = 3;
}
for (; i < argc; i++)
process_file(argv[i]);
return 0;
}

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// Residual - Virtual machine to run LucasArts' 3D adventure games
// Copyright (C) 2003 The ScummVM-Residual Team (www.scummvm.org)
//
// 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 2.1 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
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
struct lab_header {
long magic;
long magic2;
long num_entries;
long string_table_size;
};
struct lab_entry {
long fname_offset;
long start;
long size;
long reserved;
};
int main(int argc, char **argv) {
int infile, outfile;
struct lab_header head;
struct lab_entry *entries;
char *str_table;
int i;
off_t offset;
infile = open(argv[1], O_RDONLY);
if (infile < 0)
exit(1);
read(infile, &head, sizeof(head));
if (head.magic != 'NBAL')
exit(1);
entries = (struct lab_entry *)
malloc(head.num_entries * sizeof(struct lab_entry));
read(infile, entries, head.num_entries * sizeof(struct lab_entry));
str_table = (char *) malloc(head.string_table_size);
read(infile, str_table, head.string_table_size);
for (i = 0; i < head.num_entries; i++) {
outfile = open(str_table + entries[i].fname_offset,
O_CREAT | O_TRUNC | O_WRONLY, 0666);
offset = entries[i].start;
sendfile(outfile, infile, &offset, entries[i].size);
close(outfile);
}
return 0;
}

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// Residual - Virtual machine to run LucasArts' 3D adventure games
// Copyright (C) 2003 The ScummVM-Residual Team (www.scummvm.org)
//
// 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 2.1 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
#include <stdint.h>
#include <cstdio>
#include <cstring>
uint32_t get_be_uint32(char *p) {
unsigned char *pos = reinterpret_cast<unsigned char *>(p);
return (pos[0] << 24) | (pos[1] << 16) | (pos[2] << 8) | pos[3];
}
uint16_t imcTable1[] = {
0x0007, 0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e,
0x0010, 0x0011, 0x0013, 0x0015, 0x0017, 0x0019, 0x001c, 0x001f,
0x0022, 0x0025, 0x0029, 0x002d, 0x0032, 0x0037, 0x003c, 0x0042,
0x0049, 0x0050, 0x0058, 0x0061, 0x006b, 0x0076, 0x0082, 0x008f,
0x009d, 0x00ad, 0x00be, 0x00d1, 0x00e6, 0x00fd, 0x0117, 0x0133,
0x0151, 0x0173, 0x0198, 0x01c1, 0x01ee, 0x0220, 0x0256, 0x0292,
0x02d4, 0x031c, 0x036c, 0x03c3, 0x0424, 0x048e, 0x0502, 0x0583,
0x0610, 0x06ab, 0x0756, 0x0812, 0x08e0, 0x09c3, 0x0abd, 0x0bd0,
0x0cff, 0x0e4c, 0x0fba, 0x114c, 0x1307, 0x14ee, 0x1706, 0x1954,
0x1bdc, 0x1ea5, 0x21b6, 0x2515, 0x28ca, 0x2cdf, 0x315b, 0x364b,
0x3bb9, 0x41b2, 0x4844, 0x4f7e, 0x5771, 0x602f, 0x69ce, 0x7462,
0x7fff
};
uint8_t imcTable2[] = {
0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
0x04, 0x04, 0x04, 0x04, 0x04, 0x05, 0x05, 0x05, 0x05, 0x05,
0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x06,
0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06,
0x06, 0x06, 0x06, 0x06, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07
};
uint8_t imcOtherTable1[] = {
0xff, 0x04, 0xff, 0x04, 0x00, 0x00, 0x00, 0x00
};
uint8_t imcOtherTable2[] = {
0xff, 0xff, 0x02, 0x06, 0xff, 0xff, 0x02, 0x06
};
uint8_t imcOtherTable3[] = {
0xff, 0xff, 0xff, 0xff, 0x01, 0x02, 0x04, 0x06,
0xff, 0xff, 0xff, 0xff, 0x01, 0x02, 0x04, 0x06
};
uint8_t imcOtherTable4[] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x01, 0x01, 0x01, 0x02, 0x02, 0x04, 0x05, 0x06,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x01, 0x01, 0x01, 0x02, 0x02, 0x04, 0x05, 0x06
};
uint8_t imcOtherTable5[] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02,
0x02, 0x04, 0x04, 0x04, 0x05, 0x05, 0x06, 0x06,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02,
0x02, 0x04, 0x04, 0x04, 0x05, 0x05, 0x06, 0x06
};
uint8_t imcOtherTable6[] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
0x02, 0x02, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
0x05, 0x05, 0x05, 0x05, 0x06, 0x06, 0x06, 0x06,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
0x02, 0x02, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
0x05, 0x05, 0x05, 0x05, 0x06, 0x06, 0x06, 0x06
};
uint8_t *offsets[] = {
NULL, NULL, imcOtherTable1, imcOtherTable2, imcOtherTable3,
imcOtherTable4, imcOtherTable5, imcOtherTable6
};
uint16_t destTable[5786];
uint8_t sBytes[4];
uint16_t sWords[4];
int decLength, currTablePos, entrySize, decsToDo, tableEntry,
sBytesPos, destPos_sWordsPos, destPos, outputWord,
decsLeft, bytesToDec, var40, currTableVal, destOffs;
char *sourceBuffer;
unsigned char *sourcePos;
uint16_t *sWordsPos;
void initVima() {
int destTableStartPos, incer;
for (destTableStartPos = 0, incer = 0; destTableStartPos < 64;
destTableStartPos++, incer++) {
unsigned int destTablePos, imcTable1Pos;
for (imcTable1Pos = 0, destTablePos = destTableStartPos;
imcTable1Pos < sizeof(imcTable1) / sizeof(imcTable1[0]);
imcTable1Pos++, destTablePos += 64) {
int put = 0, count, tableValue;
for (count = 32, tableValue = imcTable1[imcTable1Pos]; count != 0;
count >>= 1, tableValue >>= 1) {
if ((incer & count) != 0)
put += tableValue;
}
destTable[destTablePos] = put;
}
}
}
void decompressVima_asm() {
asm("\tpush %esp\n"
"\tpush %ebp\n"
"\tpush %ebx\n"
"\tpush %esi\n"
"\tpush %edi\n"
"\n"
"\tmov sourceBuffer,%ecx\n"
"\tmov $1,%esi\n"
"\tmov (%ecx),%al\n"
"\tinc %ecx\n"
"\ttest %al,%al\n"
"\tmov %al,sBytes\n"
"\tjge .readWords\n"
"\tnot %al\n"
"\tmov %al,sBytes\n"
"\tmov $2,%esi\n"
"\n"
".readWords:\n"
"\tmov (%ecx),%ax\n"
"\txor %edx,%edx\n"
"\tmov %al,%dh\n"
"\tadd $2,%ecx\n"
"\tmov %ah,%dl\n"
"\tcmp $1,%esi\n"
"\tmov %dx,sWords\n"
"\tjbe .oneWord\n"
"\tmov (%ecx),%al\n"
"\tinc %ecx\n"
"\tmov %al,sBytes+1\n"
"\txor %edx,%edx\n"
"\tmov (%ecx),%ax\n"
"\tadd $2,%ecx\n"
"\tmov %al,%dh\n"
"\tmov %ah,%dl\n"
"\tmov %dx,sWords+2\n"
"\n"
".oneWord:\n"
"\tmov decLength,%eax\n"
"\tmovl $1,currTablePos\n"
"\tmov %esi,entrySize\n"
"\tadd %esi,%esi\n"
"\txor %edx,%edx\n"
"\tdiv %esi\n"
"\tmov %eax,decsToDo\n"
"\tmov %ecx,sourcePos\n"
"\n"
"\txor %ebx,%ebx\n"
"\n"
"\tmov %eax,currTablePos\n"
"\txor %edi,%edi\n"
"\tcmp %edi,%eax\n"
"\tjnz .label1\n"
"\tmovb $0,sBytes+1\n"
"\tmovb $0,sBytes\n"
"\tmov %di,sWords+2\n"
"\tmov %di,sWords\n"
"\n"
".label1:\n"
"\tmov sourcePos,%esi\n"
"\tmov entrySize,%edx\n"
"\txor %ecx,%ecx\n"
"\tmov (%esi),%ch\n"
"\tlea 1(%esi),%eax\n"
"\txor %esi,%esi\n"
"\tmov (%eax),%cl\n"
"\tinc %eax\n"
"\tcmp %edi,%edx\n"
"\tmov %ecx,tableEntry\n"
"\tmov %eax,sourcePos\n"
"\tmov %esi,sBytesPos\n"
"\tjbe .exitMainDec\n"
"\tmov destOffs,%edi\n"
"\tlea sWords,%eax\n"
"\tsub %eax,%edi\n"
"\tmov %eax,sWordsPos\n"
"\tmov %edi,destPos_sWordsPos\n"
"\n"
".nextByte:\n"
"\tlea (%edi,%eax,1),%ecx\n"
"\tmov %ecx,destPos\n"
"\tmovsbl sBytes(%esi),%ecx\n"
"\tmov %ecx,currTablePos\n"
"\tmovswl (%eax),%ecx\n"
"\tmov %ecx,outputWord\n"
"\tmov decsToDo,%ecx\n"
"\ttest %ecx,%ecx\n"
"\tjz .done\n"
"\tadd %edx,%edx\n"
"\tmov %ecx,decsLeft\n"
"\tmov %edx,bytesToDec\n"
"\n"
".nextDec:\n"
"\tmov currTablePos,%eax\n"
"\tmov $1,%edx\n"
"\tmov imcTable2(%eax),%cl\n"
"\tmov %cl,currTableVal\n"
"\tmov currTableVal,%esi\n"
"\tand $0xff,%esi\n"
"\tadd %esi,%ebx\n"
"\tlea -1(%esi),%ecx\n"
"\tmov %ebx,destOffs\n"
"\tshl %cl,%edx\n"
"\tmov $0x10,%cl\n"
"\tsub %bl,%cl\n"
"\tmov %dl,%al\n"
"\tdec %al\n"
"\tmov %al,var40\n"
"\tmov tableEntry,%eax\n"
"\tmov var40,%edi\n"
"\tand $0xffff,%eax\n"
"\tshr %cl,%eax\n"
"\tand $0xff,%edi\n"
"\tmov %edx,%ecx\n"
"\tor %edi,%ecx\n"
"\tand %ecx,%eax\n"
"\tcmp $7,%ebx\n"
"\tjle .label2\n"
"\tmov sourcePos,%ebx\n"
"\txor %ecx,%ecx\n"
"\tmov tableEntry,%ch\n"
"\tmovzbw (%ebx),%bx\n"
"\tor %ebx,%ecx\n"
"\tmov sourcePos,%ebx\n"
"\tinc %ebx\n"
"\tmov %ecx,tableEntry\n"
"\tmov %ebx,sourcePos\n"
"\tmov destOffs,%ebx\n"
"\tsub $8,%ebx\n"
"\tmov %ebx,destOffs\n"
"\tjmp .label3\n"
"\n"
".label2:\n"
"\tmov tableEntry,%ecx\n"
"\n"
".label3:\n"
"\ttest %edx,%eax\n"
"\tjz .clearEDX\n"
"\txor %edx,%eax\n"
"\tjmp .noClear\n"
"\n"
".clearEDX:\n"
"\txor %edx,%edx\n"
"\n"
".noClear:\n"
"\tcmp %edi,%eax\n"
"\tjnz .label4\n"
"\tmov %ecx,%edx\n"
"\tmov %ebx,%ecx\n"
"\tshl %cl,%edx\n"
"\tmov sourcePos,%ecx\n"
"\tmovzbw (%ecx),%di\n"
"\tpush %ecx\n"
"\tmovswl %dx,%ecx\n"
"\txor %edx,%edx\n"
"\tand $0xffffff00,%ecx\n"
"\tmov %ecx,outputWord\n"
"\tpop %ecx\n"
"\tmov tableEntry,%dh\n"
"\tor %edi,%edx\n"
"\tinc %ecx\n"
"\tmov %ecx,sourcePos\n"
"\tmov $8,%cx\n"
"\tsub %bx,%cx\n"
"\tmov %edx,%edi\n"
"\tshr %cl,%di\n"
"\txor %ecx,%ecx\n"
"\tmov destOffs,%ebx\n"
"\tmov %dl,%ch\n"
"\tmov %ecx,%edx\n"
"\tmov sourcePos,%ecx\n"
"\tand $0xff,%edi\n"
"\tpush %ecx\n"
"\tmov outputWord,%ecx\n"
"\tor %edi,%ecx\n"
"\tmov %ecx,outputWord\n"
"\tpop %ecx\n"
"\tmovzbw (%ecx),%di\n"
"\n"
"\tor %edi,%edx\n"
"\tinc %ecx\n"
"\tmov %edx,tableEntry\n"
"\tmov %ecx,sourcePos\n"
"\tjmp .writeDec\n"
"\n"
".label4:\n"
"\tmov $7,%ecx\n"
"\tmov %eax,%edi\n"
"\tsub %esi,%ecx\n"
"\tshl %cl,%edi\n"
"\tmov currTablePos,%ecx\n"
"\tshl $6,%ecx\n"
"\tor %ecx,%edi\n"
"\txor %ecx,%ecx\n"
"\ttest %eax,%eax\n"
"\tmov destTable(,%edi,2),%cx\n"
"\tmov %ecx,destOffs\n"
"\tjz .label5\n"
"\tmov currTablePos,%edi\n"
"\txor %ecx,%ecx\n"
"\tmov imcTable1(,%edi,2),%cx\n"
"\tmov %ecx,%edi\n"
"\tlea -1(%esi),%ecx\n"
"\tshr %cl,%edi\n"
"\tmov destOffs,%ecx\n"
"\tadd %edi,%ecx\n"
"\n"
".label5:\n"
"\ttest %edx,%edx\n"
"\tjz .label6\n"
"\tneg %ecx\n"
"\n"
".label6:\n"
"\tmov outputWord,%edx\n"
"\tadd %ecx,%edx\n"
"\tcmp $-0x8000,%edx\n"
"\tjge .label7\n"
"\tmov $-0x8000,%edx\n"
"\tmov %edx,outputWord\n"
"\tjmp .writeDec\n"
"\n"
".label7:\n"
"\tcmp $0x7fff,%edx\n"
"\tmov %edx,outputWord\n"
"\tjle .writeDec\n"
"\tmov $0x7fff,%edx\n"
"\tmov %edx,outputWord\n"
"\n"
".writeDec:\n"
"\tmov destPos,%ecx\n"
"\tmov bytesToDec,%edx\n"
"\tpush %eax\n"
"\tmov outputWord,%eax\n"
"\tmov %ax,(%ecx)\n"
"\tadd %edx,%ecx\n"
"\tmov offsets(,%esi,4),%edx\n"
"\tmov %ecx,destPos\n"
"\tmov currTablePos,%ecx\n"
"\tpop %eax\n"
"\tmovsbl (%edx,%eax,1),%eax\n"
"\tadd %eax,%ecx\n"
"\tmov %ecx,currTablePos\n"
"\tjns .label8\n"
"\tmovl $0,currTablePos\n"
"\tjmp .done\n"
"\n"
".label8:\n"
"\tmov currTablePos,%ecx\n"
"\tmov $0x58,%eax\n"
"\tcmp %eax,%ecx\n"
"\tjle .done\n"
"\tmov %eax,currTablePos\n"
"\n"
".done:\n"
"\tmov decsLeft,%eax\n"
"\tdec %eax\n"
"\tmov %eax,decsLeft\n"
"\tjnz .nextDec\n"
"\tmov entrySize,%edx\n"
"\tmov sBytesPos,%esi\n"
"\tmov sWordsPos,%eax\n"
"\tmov destPos_sWordsPos,%edi\n"
"\tmov currTablePos,%cl\n"
"\tadd $2,%eax\n"
"\tmov %cl,sBytes(%esi)\n"
"\tpush %ebx\n"
"\tmov outputWord,%ebx\n"
"\tmov %bx,-2(%eax)\n"
"\tpop %ebx\n"
"\tinc %esi\n"
"\tmov %eax,sWordsPos\n"
"\tcmp %edx,%esi\n"
"\tmov %esi,sBytesPos\n"
"\tjb .nextByte\n"
"\n"
".exitMainDec:\n"
"\tpop %edi\n"
"\tpop %esi\n"
"\tpop %ebx\n"
"\tpop %ebp\n"
"\tpop %esp\n");
}
int eax, bit;
void decompressVima() {
sourcePos = (unsigned char *) sourceBuffer; // sourcePos in ecx
entrySize = 1; // entrySize in esi
sBytes[0] = *sourcePos;
sourcePos++;
if (sBytes[0] & 0x80) {
sBytes[0] = ~sBytes[0];
entrySize = 2;
}
sWords[0] = (sourcePos[0] << 8) | sourcePos[1];
sourcePos += 2;
if (entrySize > 1) {
sBytes[1] = *sourcePos;
sourcePos++;
sWords[1] = (sourcePos[0] << 8) | sourcePos[1];
sourcePos += 2;
}
currTablePos = 1;
decsToDo = decLength / (2 * entrySize);
if (currTablePos == 0) {
sBytes[1] = 0;
sBytes[0] = 0;
sWords[1] = 0;
sWords[0] = 0;
}
tableEntry = (sourcePos[0] << 8) | sourcePos[1];
sourcePos += 2;
sBytesPos = 0;
if (entrySize <= 0)
goto exitMainDec;
sWordsPos = sWords;
destPos_sWordsPos = destOffs - (int) sWords;
destOffs = 0; // destOffs in ebx
nextByte:
// edi = destPos_sWordsPos, eax = sWordsPos, esi = sBytesPos
destPos = destPos_sWordsPos + (int) sWordsPos;
currTablePos = (signed char) sBytes[sBytesPos];
outputWord = (signed short) *sWordsPos;
if (decsToDo == 0)
goto done;
decsLeft = decsToDo;
bytesToDec = entrySize * 2;
nextDec:
currTableVal = imcTable2[currTablePos];
destOffs += currTableVal & 0xff;
bit = 1 << (currTableVal - 1);
var40 = bit - 1;
eax = (tableEntry & 0xffff) >> (16 - destOffs);
eax &= (bit | var40);
if (destOffs > 7) {
tableEntry = ((tableEntry & 0xff) << 8) | *sourcePos;
sourcePos++;
destOffs -= 8;
}
if (eax & bit)
eax ^= bit;
else
bit = 0;
if (eax == var40) {
outputWord = ((signed short) (tableEntry << destOffs) & 0xffffff00);
tableEntry = ((tableEntry & 0xff) << 8) | *sourcePos;
sourcePos++;
outputWord |= ((tableEntry >> (8 - destOffs)) & 0xff);
tableEntry = ((tableEntry & 0xff) << 8) | *sourcePos;
sourcePos++;
}
else {
int index = (eax << (7 - currTableVal)) | (currTablePos << 6);
int delta;
delta = destTable[index];
if (eax != 0)
delta += (imcTable1[currTablePos] >> (currTableVal - 1));
if (bit != 0)
delta = -delta;
outputWord += delta;
if (outputWord < -0x8000)
outputWord = -0x8000;
else if (outputWord > 0x7fff)
outputWord = 0x7fff;
}
*((uint16_t *) destPos) = outputWord;
destPos += bytesToDec;
currTablePos += (signed char) offsets[currTableVal][eax];
if (currTablePos < 0)
currTablePos = 0;
else if (currTablePos > 88)
currTablePos = 88;
done:
decsLeft--;
if (decsLeft != 0)
goto nextDec;
sBytes[sBytesPos] = currTablePos;
*sWordsPos = outputWord;
sWordsPos++;
sBytesPos++;
if (sBytesPos < entrySize)
goto nextByte;
exitMainDec:
return;
}
int main(int /* argc */, char *argv[]) {
initVima();
FILE *f = fopen(argv[1], "rb");
if (f == NULL) {
perror(argv[1]);
return 1;
}
char magic[4];
fread(magic, 4, 1, f);
if (memcmp(magic, "MCMP", 4) != 0) {
fprintf(stderr, "Not a valid file\n");
return 1;
}
uint16_t numBlocks = getc(f) << 8;
numBlocks |= getc(f);
char *blocks = new char[9 * numBlocks];
fread(blocks, 9, numBlocks, f);
uint16_t numCodecs = getc(f) << 8;
numCodecs |= getc(f);
numCodecs /= 5;
char *codecs = new char[5 * numCodecs];
fread(codecs, 5, numCodecs, f);
for (int i = 0; i < numBlocks; i++) {
int codec = blocks[9 * i];
int uncompSize = get_be_uint32(blocks + 9 * i + 1);
int compSize = get_be_uint32(blocks + 9 * i + 5);
sourceBuffer = new char[compSize];
fread(sourceBuffer, 1, compSize, f);
if (strcmp(codecs + 5 * codec, "NULL") == 0)
fwrite(sourceBuffer, 1, uncompSize, stdout);
else if (strcmp(codecs + 5 * codec, "VIMA") == 0) {
decLength = uncompSize;
char *buffer = new char[uncompSize];
destOffs = (int) buffer;
decompressVima();
fwrite(buffer, 1, uncompSize, stdout);
delete[] buffer;
}
else {
fprintf(stderr, "Unrecognized codec %s\n", codecs + 5 * codec);
return 1;
}
delete[] sourceBuffer;
}
return 0;
}