changed coding style

6 files changed, 768 insertions, 737 deletions

diff --git a/src/glut/dos/PC_HW/pc_hw.c b/src/glut/dos/PC_HW/pc_hw.c
index b1fd84bdb6..100b372165 100644
--- a/src/glut/dos/PC_HW/pc_hw.c
+++ b/src/glut/dos/PC_HW/pc_hw.c
@@ -1,7 +1,7 @@
 /*
  * PC/HW routine collection v1.3 for DOS/DJGPP
  *
- *  Copyright (C) 2002 - Borca Daniel
+ *  Copyright (C) 2002 - Daniel Borca
  *  Email : dborca@yahoo.com
  *  Web   : http://www.geocities.com/dborca
  */
@@ -16,6 +16,7 @@
 
 #include "pc_hw.h"
 
+
 /*
  * atexit
  */
@@ -24,52 +25,61 @@
 static volatile int atexitcnt;
 static VFUNC atexittbl[MAX_ATEXIT];
 
-static void __attribute__((destructor)) doexit (void)
+
+static void __attribute__((destructor))
+doexit (void)
 {
- while (atexitcnt) atexittbl[--atexitcnt]();
+   while (atexitcnt) atexittbl[--atexitcnt]();
 }
 
-int pc_clexit (VFUNC f)
+
+int
+pc_clexit (VFUNC f)
 {
- int i;
-
- for (i=0;i<atexitcnt;i++) {
-     if (atexittbl[i]==f) {
-        for (atexitcnt--;i<atexitcnt;i++) atexittbl[i] = atexittbl[i+1];
-        atexittbl[i] = 0;
-        return 0;
-     }
- }
- return -1;
+   int i;
+
+   for (i = 0; i < atexitcnt; i++) {
+      if (atexittbl[i] == f) {
+         for (atexitcnt--; i < atexitcnt; i++) atexittbl[i] = atexittbl[i+1];
+         atexittbl[i] = 0;
+         return 0;
+      }
+   }
+   return -1;
 }
 
-int pc_atexit (VFUNC f)
+
+int
+pc_atexit (VFUNC f)
 {
- pc_clexit(f);
- if (atexitcnt<MAX_ATEXIT) {
-    atexittbl[atexitcnt++] = f;
-    return 0;
- }
- return -1;
+   pc_clexit(f);
+   if (atexitcnt < MAX_ATEXIT) {
+      atexittbl[atexitcnt++] = f;
+      return 0;
+   }
+   return -1;
 }
 
+
 /*
  * locked memory allocation
  */
-void *pc_malloc (size_t size)
+void *
+pc_malloc (size_t size)
 {
- void *p = malloc(size);
+   void *p = malloc(size);
 
- if (p) {
-    if (_go32_dpmi_lock_data(p, size)) {
-       free(p);
-       return NULL;
-    }
- }
+   if (p) {
+      if (_go32_dpmi_lock_data(p, size)) {
+         free(p);
+         return NULL;
+      }
+   }
 
- return p;
+   return p;
 }
 
+
 /*
  * standard redirection
  */
@@ -78,68 +88,76 @@ static int h_out, h_outbak;
 static char errname[L_tmpnam];
 static int h_err, h_errbak;
 
-int pc_open_stdout (void)
+
+int
+pc_open_stdout (void)
 {
- tmpnam(outname);
+   tmpnam(outname);
 
- if ((h_out=open(outname, O_WRONLY | O_CREAT | O_TEXT | O_TRUNC, S_IREAD | S_IWRITE)) > 0) {
-    h_outbak = dup(STDOUT_FILENO);
-    fflush(stdout);
-    dup2(h_out, STDOUT_FILENO);
- }
+   if ((h_out=open(outname, O_WRONLY | O_CREAT | O_TEXT | O_TRUNC, S_IREAD | S_IWRITE)) > 0) {
+      h_outbak = dup(STDOUT_FILENO);
+      fflush(stdout);
+      dup2(h_out, STDOUT_FILENO);
+   }
 
- return h_out;
+   return h_out;
 }
 
-void pc_close_stdout (void)
+
+void
+pc_close_stdout (void)
 {
- FILE *f;
- char *line = alloca(512);
-
- if (h_out > 0) {
-    dup2(h_outbak, STDOUT_FILENO);
-    close(h_out);
-    close(h_outbak);
-
-    f = fopen(outname, "rt");
-    while (fgets(line, 512, f)) {
-          fputs(line, stdout);
-    }
-    fclose(f);
-
-    remove(outname);
- }
+   FILE *f;
+   char *line = alloca(512);
+
+   if (h_out > 0) {
+      dup2(h_outbak, STDOUT_FILENO);
+      close(h_out);
+      close(h_outbak);
+
+      f = fopen(outname, "rt");
+      while (fgets(line, 512, f)) {
+         fputs(line, stdout);
+      }
+      fclose(f);
+
+      remove(outname);
+   }
 }
 
-int pc_open_stderr (void)
+
+int
+pc_open_stderr (void)
 {
- tmpnam(errname);
+   tmpnam(errname);
 
- if ((h_err=open(errname, O_WRONLY | O_CREAT | O_TEXT | O_TRUNC, S_IREAD | S_IWRITE)) > 0) {
-    h_errbak = dup(STDERR_FILENO);
-    fflush(stderr);
-    dup2(h_err, STDERR_FILENO);
- }
+   if ((h_err=open(errname, O_WRONLY | O_CREAT | O_TEXT | O_TRUNC, S_IREAD | S_IWRITE)) > 0) {
+      h_errbak = dup(STDERR_FILENO);
+      fflush(stderr);
+      dup2(h_err, STDERR_FILENO);
+   }
 
- return h_err;
+   return h_err;
 }
 
-void pc_close_stderr (void)
+
+void
+pc_close_stderr (void)
 {
- FILE *f;
- char *line = alloca(512);
-
- if (h_err > 0) {
-    dup2(h_errbak, STDERR_FILENO);
-    close(h_err);
-    close(h_errbak);
-
-    f = fopen(errname, "rt");
-    while (fgets(line, 512, f)) {
-          fputs(line, stderr);
-    }
-    fclose(f);
-
-    remove(errname);
- }
+   FILE *f;
+   char *line = alloca(512);
+
+   if (h_err > 0) {
+      dup2(h_errbak, STDERR_FILENO);
+      close(h_err);
+      close(h_errbak);
+
+      f = fopen(errname, "rt");
+      while (fgets(line, 512, f)) {
+         fputs(line, stderr);
+      }
+      fclose(f);
+
+      remove(errname);
+   }
 }
diff --git a/src/glut/dos/PC_HW/pc_hw.h b/src/glut/dos/PC_HW/pc_hw.h
index bd2293eb29..41948ec991 100644
--- a/src/glut/dos/PC_HW/pc_hw.h
+++ b/src/glut/dos/PC_HW/pc_hw.h
@@ -1,7 +1,7 @@
 /*
  * PC/HW routine collection v1.4 for DOS/DJGPP
  *
- *  Copyright (C) 2002 - Borca Daniel
+ *  Copyright (C) 2002 - Daniel Borca
  *  Email : dborca@yahoo.com
  *  Web   : http://www.geocities.com/dborca
  */
diff --git a/src/glut/dos/PC_HW/pc_irq.S b/src/glut/dos/PC_HW/pc_irq.S
index 6d99bd805e..7d62ac74ce 100644
--- a/src/glut/dos/PC_HW/pc_irq.S
+++ b/src/glut/dos/PC_HW/pc_irq.S
@@ -1,7 +1,7 @@
 /*
  * PC/HW routine collection v1.3 for DOS/DJGPP
  *
- *  Copyright (C) 2002 - Borca Daniel
+ *  Copyright (C) 2002 - Daniel Borca
  *  Email : dborca@yahoo.com
  *  Web   : http://www.geocities.com/dborca
  */
diff --git a/src/glut/dos/PC_HW/pc_keyb.c b/src/glut/dos/PC_HW/pc_keyb.c
index d3c87bc5bd..d7e3257b9d 100644
--- a/src/glut/dos/PC_HW/pc_keyb.c
+++ b/src/glut/dos/PC_HW/pc_keyb.c
@@ -1,7 +1,7 @@
 /*
  * PC/HW routine collection v1.3 for DOS/DJGPP
  *
- *  Copyright (C) 2002 - Borca Daniel
+ *  Copyright (C) 2002 - Daniel Borca
  *  Email : dborca@yahoo.com
  *  Web   : http://www.geocities.com/dborca
  */
@@ -14,7 +14,6 @@
 #include "pc_hw.h"
 
 
-
 #define KEYB_IRQ 1
 
 #define KEY_BUFFER_SIZE 64
@@ -25,8 +24,8 @@
 static int keyboard_installed;
 
 static volatile struct {
-       volatile int start, end;
-       volatile int key[KEY_BUFFER_SIZE];
+   volatile int start, end;
+   volatile int key[KEY_BUFFER_SIZE];
 } key_buffer;
 
 static volatile int key_enhanced, key_pause_loop, key_shifts;
@@ -35,10 +34,8 @@ static int in_a_terrupt = FALSE;
 static volatile char pc_key[KEY_MAX];
 
 
-
 /* convert Allegro format scancodes into key_shifts flag bits */
-static unsigned short modifier_table[KEY_MAX - KEY_MODIFIERS] =
-{
+static unsigned short modifier_table[KEY_MAX - KEY_MODIFIERS] = {
    KB_SHIFT_FLAG,    KB_SHIFT_FLAG,    KB_CTRL_FLAG,
    KB_CTRL_FLAG,     KB_ALT_FLAG,      KB_ALT_FLAG,
    KB_LWIN_FLAG,     KB_RWIN_FLAG,     KB_MENU_FLAG,
@@ -46,10 +43,8 @@ static unsigned short modifier_table[KEY_MAX - KEY_MODIFIERS] =
 };
 
 
-
 /* lookup table for converting hardware scancodes into Allegro format */
-static unsigned char hw_to_mycode[128] =
-{
+static unsigned char hw_to_mycode[128] = {
    /* 0x00 */  0,              KEY_ESC,        KEY_1,          KEY_2, 
    /* 0x04 */  KEY_3,          KEY_4,          KEY_5,          KEY_6,
    /* 0x08 */  KEY_7,          KEY_8,          KEY_9,          KEY_0, 
@@ -85,10 +80,8 @@ static unsigned char hw_to_mycode[128] =
 };
 
 
-
 /* lookup table for converting extended hardware codes into Allegro format */
-static unsigned char hw_to_mycode_ex[128] =
-{
+static unsigned char hw_to_mycode_ex[128] = {
    /* 0x00 */  0,              KEY_ESC,        KEY_1,          KEY_2,
    /* 0x04 */  KEY_3,          KEY_4,          KEY_5,          KEY_6,
    /* 0x08 */  KEY_7,          KEY_8,          KEY_9,          KEY_0,
@@ -124,10 +117,8 @@ static unsigned char hw_to_mycode_ex[128] =
 };
 
 
-
 /* default mapping table for the US keyboard layout */
-static unsigned short standard_key_ascii_table[KEY_MAX] =
-{
+static unsigned short standard_key_ascii_table[KEY_MAX] = {
    /* start */       0,
    /* alphabet */    'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
    /* numbers */     '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
@@ -140,10 +131,8 @@ static unsigned short standard_key_ascii_table[KEY_MAX] =
 };
 
 
-
 /* capslock mapping table for the US keyboard layout */
-static unsigned short standard_key_capslock_table[KEY_MAX] =
-{
+static unsigned short standard_key_capslock_table[KEY_MAX] = {
    /* start */       0,
    /* alphabet */    'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
    /* numbers */     '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
@@ -156,10 +145,8 @@ static unsigned short standard_key_capslock_table[KEY_MAX] =
 };
 
 
-
 /* shifted mapping table for the US keyboard layout */
-static unsigned short standard_key_shift_table[KEY_MAX] =
-{
+static unsigned short standard_key_shift_table[KEY_MAX] = {
    /* start */       0,
    /* alphabet */    'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
    /* numbers */     ')', '!', '@', '#', '$', '%', '^', '&', '*', '(',
@@ -172,10 +159,8 @@ static unsigned short standard_key_shift_table[KEY_MAX] =
 };
 
 
-
 /* ctrl+key mapping table for the US keyboard layout */
-static unsigned short standard_key_control_table[KEY_MAX] =
-{
+static unsigned short standard_key_control_table[KEY_MAX] = {
    /* start */       0,
    /* alphabet */    1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
    /* numbers */     2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
@@ -188,215 +173,217 @@ static unsigned short standard_key_control_table[KEY_MAX] =
 };
 
 
-
 /* convert numeric pad scancodes into arrow codes */
-static unsigned char numlock_table[10] =
-{
+static unsigned char numlock_table[10] = {
    KEY_INSERT, KEY_END,    KEY_DOWN,   KEY_PGDN,   KEY_LEFT,
    KEY_5_PAD,  KEY_RIGHT,  KEY_HOME,   KEY_UP,     KEY_PGUP
 };
 
 
-
 /* kb_wait_for_write_ready:
  *  Wait for the keyboard controller to set the ready-for-write bit.
  */
-static __inline int kb_wait_for_write_ready (void)
+static __inline int
+kb_wait_for_write_ready (void)
 {
- int timeout = 4096;
+   int timeout = 4096;
 
- while ((timeout>0) && (inportb(0x64)&2)) timeout--;
+   while ((timeout > 0) && (inportb(0x64) & 2)) timeout--;
 
- return (timeout>0);
+   return (timeout > 0);
 }
 
 
-
 /* kb_wait_for_read_ready:
  *  Wait for the keyboard controller to set the ready-for-read bit.
  */
-static __inline int kb_wait_for_read_ready (void)
+static __inline int
+kb_wait_for_read_ready (void)
 {
- int timeout = 16384;
+   int timeout = 16384;
 
- while ((timeout>0) && (!(inportb(0x64)&1))) timeout--;
+   while ((timeout > 0) && (!(inportb(0x64) & 1))) timeout--;
 
- return (timeout>0);
+   return (timeout > 0);
 }
 
 
-
 /* kb_send_data:
  *  Sends a byte to the keyboard controller. Returns 1 if all OK.
  */
-static __inline int kb_send_data (unsigned char data)
+static __inline int
+kb_send_data (unsigned char data)
 {
- int resends = 4;
- int timeout, temp;
+   int resends = 4;
+   int timeout, temp;
 
- do {
-     if (!kb_wait_for_write_ready())
-        return 0;
+   do {
+      if (!kb_wait_for_write_ready())
+         return 0;
 
-     outportb(0x60, data);
-     timeout = 4096;
+      outportb(0x60, data);
+      timeout = 4096;
 
-     while (--timeout>0) {
-           if (!kb_wait_for_read_ready())
-	      return 0;
+      while (--timeout > 0) {
+         if (!kb_wait_for_read_ready())
+            return 0;
 
-           temp = inportb(0x60);
+         temp = inportb(0x60);
 
-           if (temp == 0xFA)
-	      return 1;
+         if (temp == 0xFA)
+            return 1;
 
-           if (temp == 0xFE)
-	      break;
-     }
- } while ((resends-- > 0) && (timeout > 0));
+         if (temp == 0xFE)
+            break;
+      }
+   } while ((resends-- > 0) && (timeout > 0));
 
- return 0;
+   return 0;
 }
 
 
-
-static void update_leds (int leds)
+static void
+update_leds (int leds)
 {
- if (leds_ok) {
-    if (!in_a_terrupt)
-       DISABLE();
-
-    if (!kb_send_data(0xED)) {
-       kb_send_data(0xF4);
-       leds_ok = FALSE;
-    } else if (!kb_send_data((leds>>8)&7)) {
-       kb_send_data(0xF4);
-       leds_ok = FALSE;
-    }
-
-    if (!in_a_terrupt)
-       ENABLE();
- }
+   if (leds_ok) {
+      if (!in_a_terrupt)
+         DISABLE();
+
+      if (!kb_send_data(0xED)) {
+         kb_send_data(0xF4);
+         leds_ok = FALSE;
+      } else if (!kb_send_data((leds >> 8) & 7)) {
+         kb_send_data(0xF4);
+         leds_ok = FALSE;
+      }
+
+      if (!in_a_terrupt)
+         ENABLE();
+   }
 } ENDOFUNC(update_leds)
 
 
-
-static void inject_key (int scancode)
+static void
+inject_key (int scancode)
 {
- unsigned short *table;
-
- if ((scancode >= KEY_0_PAD) && (scancode <= KEY_9_PAD)) {
-    if (((key_shifts & KB_NUMLOCK_FLAG) != 0) == ((key_shifts & KB_SHIFT_FLAG) != 0)) {
-       scancode = numlock_table[scancode - KEY_0_PAD];
-    }
-    table = standard_key_ascii_table;
- } else if (key_shifts & KB_CTRL_FLAG) {
-    table = standard_key_control_table;
- } else if (key_shifts & KB_SHIFT_FLAG) {
-    if (key_shifts & KB_CAPSLOCK_FLAG) {
-       if (standard_key_ascii_table[scancode]==standard_key_capslock_table[scancode]) {
-          table = standard_key_shift_table;
-       } else {
-          table = standard_key_ascii_table;
-       }
-    } else {
-       table = standard_key_shift_table;
-    }
- } else if (key_shifts & KB_CAPSLOCK_FLAG) {
-    table = standard_key_capslock_table;
- } else {
-    table = standard_key_ascii_table;
- }
-
- key_buffer.key[key_buffer.end++] = (scancode<<16)|table[scancode];
-
- if (key_buffer.end>=KEY_BUFFER_SIZE)
-    key_buffer.end = 0;
- if (key_buffer.end==key_buffer.start) {
-    key_buffer.start++;
-    if (key_buffer.start>=KEY_BUFFER_SIZE)
-       key_buffer.start = 0;
- }
+   unsigned short *table;
+
+   if ((scancode >= KEY_0_PAD) && (scancode <= KEY_9_PAD)) {
+      if (((key_shifts & KB_NUMLOCK_FLAG) != 0) == ((key_shifts & KB_SHIFT_FLAG) != 0)) {
+         scancode = numlock_table[scancode - KEY_0_PAD];
+      }
+      table = standard_key_ascii_table;
+   } else if (key_shifts & KB_CTRL_FLAG) {
+      table = standard_key_control_table;
+   } else if (key_shifts & KB_SHIFT_FLAG) {
+      if (key_shifts & KB_CAPSLOCK_FLAG) {
+         if (standard_key_ascii_table[scancode] == standard_key_capslock_table[scancode]) {
+            table = standard_key_shift_table;
+         } else {
+            table = standard_key_ascii_table;
+         }
+      } else {
+         table = standard_key_shift_table;
+      }
+   } else if (key_shifts & KB_CAPSLOCK_FLAG) {
+      table = standard_key_capslock_table;
+   } else {
+      table = standard_key_ascii_table;
+   }
+
+   key_buffer.key[key_buffer.end++] = (scancode << 16) | table[scancode];
+
+   if (key_buffer.end >= KEY_BUFFER_SIZE)
+      key_buffer.end = 0;
+   if (key_buffer.end == key_buffer.start) {
+      key_buffer.start++;
+      if (key_buffer.start >= KEY_BUFFER_SIZE)
+         key_buffer.start = 0;
+   }
 } ENDOFUNC(inject_key)
 
-static void handle_code (int scancode, int keycode)
+
+static void
+handle_code (int scancode, int keycode)
 {
- in_a_terrupt++;
-
- if (keycode==0) {              /* pause */
-    inject_key(scancode);
-    pc_key[KEY_PAUSE] ^= TRUE;
- } else if (scancode) {
-    int flag;
- 
-    if (scancode>=KEY_MODIFIERS) {
-       flag = modifier_table[scancode - KEY_MODIFIERS];
-    } else {
-       flag = 0;
-    }
-    if ((char)keycode<0) {      /* release */
-       pc_key[scancode] = FALSE;
-       if (flag&KB_MODIFIERS) {
-          key_shifts &= ~flag;
-       }
-    } else {                    /* keypress */
-       pc_key[scancode] = TRUE;
-       if (flag&KB_MODIFIERS) {
-          key_shifts |= flag;
-       }
-       if (flag&KB_LED_FLAGS) {
-          key_shifts ^= flag;
-          update_leds(key_shifts);
-       }
-       if (scancode<KEY_MODIFIERS) {
-          inject_key(scancode);
-       }
-    }
- }
-
- in_a_terrupt--;
+   in_a_terrupt++;
+
+   if (keycode == 0) {            /* pause */
+      inject_key(scancode);
+      pc_key[KEY_PAUSE] ^= TRUE;
+   } else if (scancode) {
+      int flag;
+
+      if (scancode >= KEY_MODIFIERS) {
+         flag = modifier_table[scancode - KEY_MODIFIERS];
+      } else {
+         flag = 0;
+      }
+      if ((char)keycode < 0) {    /* release */
+         pc_key[scancode] = FALSE;
+         if (flag & KB_MODIFIERS) {
+            key_shifts &= ~flag;
+         }
+      } else {                    /* keypress */
+         pc_key[scancode] = TRUE;
+         if (flag & KB_MODIFIERS) {
+            key_shifts |= flag;
+         }
+         if (flag & KB_LED_FLAGS) {
+            key_shifts ^= flag;
+            update_leds(key_shifts);
+         }
+         if (scancode < KEY_MODIFIERS) {
+            inject_key(scancode);
+         }
+      }
+   }
+
+   in_a_terrupt--;
 } ENDOFUNC(handle_code)
 
-static int keyboard ()
+
+static int
+keyboard ()
 {
- unsigned char temp, scancode;
-
- temp = inportb(0x60);
-
- if (temp<=0xe1) {
-    if (key_pause_loop) {
-       if (!--key_pause_loop) handle_code(KEY_PAUSE, 0);
-    } else
-       switch (temp) {
-              case 0xe0:
-                   key_enhanced = TRUE;
-                   break;
-              case 0xe1:
-                   key_pause_loop = 5;
-                   break;
-              default:
-                   if (key_enhanced) {
-                      key_enhanced = FALSE;
-                      scancode = hw_to_mycode_ex[temp&0x7f];
-                   } else {
-                      scancode = hw_to_mycode[temp&0x7f];
-                   }
-                   handle_code(scancode, temp);
-       }
- }
-
- if (((temp==0x4F)||(temp==0x53))&&(key_shifts&KB_CTRL_FLAG)&&(key_shifts&KB_ALT_FLAG)) {
-    /* Hack alert:
-       only SIGINT (but not Ctrl-Break)
-       calls the destructors and will safely clean up
-    */
-    __asm("\n\
+   unsigned char temp, scancode;
+
+   temp = inportb(0x60);
+
+   if (temp <= 0xe1) {
+      if (key_pause_loop) {
+         if (!--key_pause_loop) handle_code(KEY_PAUSE, 0);
+      } else
+         switch (temp) {
+            case 0xe0:
+               key_enhanced = TRUE;
+               break;
+            case 0xe1:
+               key_pause_loop = 5;
+               break;
+            default:
+               if (key_enhanced) {
+                  key_enhanced = FALSE;
+                  scancode = hw_to_mycode_ex[temp & 0x7f];
+               } else {
+                  scancode = hw_to_mycode[temp & 0x7f];
+               }
+               handle_code(scancode, temp);
+         }
+   }
+
+   if (((temp==0x4F)||(temp==0x53))&&(key_shifts&KB_CTRL_FLAG)&&(key_shifts&KB_ALT_FLAG)) {
+      /* Hack alert:
+       * only SIGINT (but not Ctrl-Break)
+       * calls the destructors and will safely clean up
+       */
+       __asm("\n\
 		movb	$0x79, %%al		\n\
 		call	___djgpp_hw_exception	\n\
-    ":::"%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi", "memory");
- }
+       ":::"%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi", "memory");
+   }
 
- __asm("\n\
+   __asm("\n\
 		inb	$0x61, %%al	\n\
 		movb	%%al, %%ah	\n\
 		orb	$0x80, %%al	\n\
@@ -405,138 +392,149 @@ static int keyboard ()
 		outb	%%al, $0x61	\n\
 		movb	$0x20, %%al	\n\
 		outb	%%al, $0x20	\n\
- ":::"%eax");
- return 0;
+   ":::"%eax");
+   return 0;
 } ENDOFUNC(keyboard)
 
 
-int pc_keypressed (void)
+int
+pc_keypressed (void)
 {
- return (key_buffer.start!=key_buffer.end);
+   return (key_buffer.start!=key_buffer.end);
 }
 
-int pc_readkey (void)
+
+int
+pc_readkey (void)
 {
- if (keyboard_installed) {
-    int key;
-
-    while (key_buffer.start==key_buffer.end) {
-          __dpmi_yield();
-    }
-
-    DISABLE();
-    key = key_buffer.key[key_buffer.start++];
-    if (key_buffer.start>=KEY_BUFFER_SIZE)
-       key_buffer.start = 0;
-    ENABLE();
-
-    return key;
- } else {
-    return 0;
- }
+   if (keyboard_installed) {
+      int key;
+
+      while (key_buffer.start == key_buffer.end) {
+         __dpmi_yield();
+      }
+
+      DISABLE();
+      key = key_buffer.key[key_buffer.start++];
+      if (key_buffer.start >= KEY_BUFFER_SIZE)
+         key_buffer.start = 0;
+      ENABLE();
+
+      return key;
+   } else {
+      return 0;
+   }
 }
 
-int pc_keydown (int code)
+
+int
+pc_keydown (int code)
 {
- return pc_key[code];
+   return pc_key[code];
 }
 
-int pc_keyshifts (void)
+
+int
+pc_keyshifts (void)
 {
- return key_shifts;
+   return key_shifts;
 }
 
-void pc_remove_keyb (void)
+
+void
+pc_remove_keyb (void)
 {
- if (keyboard_installed) {
-    int s1, s2, s3;
- 
-    keyboard_installed = FALSE;
-    pc_clexit(pc_remove_keyb);
-
-    DISABLE();
-    _farsetsel(__djgpp_dos_sel);
-    _farnspokew(0x41c, _farnspeekw(0x41a));
-
-    s1 = _farnspeekb(0x417) & 0x80;
-    s2 = _farnspeekb(0x418) & 0xFC;
-    s3 = _farnspeekb(0x496) & 0xF3;
-
-    if (pc_key[KEY_RSHIFT])   { s1 |= 1; }
-    if (pc_key[KEY_LSHIFT])   { s1 |= 2; }
-    if (pc_key[KEY_LCONTROL]) { s2 |= 1; s1 |= 4; }
-    if (pc_key[KEY_ALT])      { s1 |= 8; s2 |= 2; }
-    if (pc_key[KEY_RCONTROL]) { s1 |= 4; s3 |= 4; }
-    if (pc_key[KEY_ALTGR])    { s1 |= 8; s3 |= 8; }
-
-    if (key_shifts&KB_SCROLOCK_FLAG) s1 |= 16;
-    if (key_shifts&KB_NUMLOCK_FLAG)  s1 |= 32;
-    if (key_shifts&KB_CAPSLOCK_FLAG) s1 |= 64;
-
-    _farnspokeb(0x417, s1);
-    _farnspokeb(0x418, s2);
-    _farnspokeb(0x496, s3);
-    update_leds(key_shifts);
-
-    ENABLE();
-    pc_remove_irq(KEYB_IRQ);
- }
+   if (keyboard_installed) {
+      int s1, s2, s3;
+
+      keyboard_installed = FALSE;
+      pc_clexit(pc_remove_keyb);
+
+      DISABLE();
+      _farsetsel(__djgpp_dos_sel);
+      _farnspokew(0x41c, _farnspeekw(0x41a));
+
+      s1 = _farnspeekb(0x417) & 0x80;
+      s2 = _farnspeekb(0x418) & 0xFC;
+      s3 = _farnspeekb(0x496) & 0xF3;
+
+      if (pc_key[KEY_RSHIFT])   { s1 |= 1; }
+      if (pc_key[KEY_LSHIFT])   { s1 |= 2; }
+      if (pc_key[KEY_LCONTROL]) { s2 |= 1; s1 |= 4; }
+      if (pc_key[KEY_ALT])      { s1 |= 8; s2 |= 2; }
+      if (pc_key[KEY_RCONTROL]) { s1 |= 4; s3 |= 4; }
+      if (pc_key[KEY_ALTGR])    { s1 |= 8; s3 |= 8; }
+
+      if (key_shifts & KB_SCROLOCK_FLAG) s1 |= 16;
+      if (key_shifts & KB_NUMLOCK_FLAG)  s1 |= 32;
+      if (key_shifts & KB_CAPSLOCK_FLAG) s1 |= 64;
+
+      _farnspokeb(0x417, s1);
+      _farnspokeb(0x418, s2);
+      _farnspokeb(0x496, s3);
+      update_leds(key_shifts);
+
+      ENABLE();
+      pc_remove_irq(KEYB_IRQ);
+   }
 }
 
-int pc_install_keyb (void)
+
+int
+pc_install_keyb (void)
 {
- if (keyboard_installed||pc_install_irq(KEYB_IRQ, keyboard)) {
-    return -1;
- } else {
-    int s1, s2, s3;
-
-    LOCKDATA(key_buffer);
-    LOCKDATA(key_enhanced);
-    LOCKDATA(key_pause_loop);
-    LOCKDATA(key_shifts);
-    LOCKDATA(leds_ok);
-    LOCKDATA(in_a_terrupt);
-    LOCKDATA(pc_key);
-    LOCKDATA(modifier_table);
-    LOCKDATA(hw_to_mycode);
-    LOCKDATA(hw_to_mycode_ex);
-    LOCKDATA(standard_key_ascii_table);
-    LOCKDATA(standard_key_capslock_table);
-    LOCKDATA(standard_key_shift_table);
-    LOCKDATA(standard_key_control_table);
-    LOCKDATA(numlock_table);
-    LOCKFUNC(update_leds);
-    LOCKFUNC(inject_key);
-    LOCKFUNC(handle_code);
-    LOCKFUNC(keyboard);
-    
-    DISABLE();
-    _farsetsel(__djgpp_dos_sel);
-    _farnspokew(0x41c, _farnspeekw(0x41a));
-
-    key_shifts = 0;
-    s1 = _farnspeekb(0x417);
-    s2 = _farnspeekb(0x418);
-    s3 = _farnspeekb(0x496);
-
-    if (s1&1) { key_shifts |= KB_SHIFT_FLAG; pc_key[KEY_RSHIFT]   = TRUE; }
-    if (s1&2) { key_shifts |= KB_SHIFT_FLAG; pc_key[KEY_LSHIFT]   = TRUE; }
-    if (s2&1) { key_shifts |= KB_CTRL_FLAG;  pc_key[KEY_LCONTROL] = TRUE; }
-    if (s2&2) { key_shifts |= KB_ALT_FLAG;   pc_key[KEY_ALT]      = TRUE; }
-    if (s3&4) { key_shifts |= KB_CTRL_FLAG;  pc_key[KEY_RCONTROL] = TRUE; }
-    if (s3&8) { key_shifts |= KB_ALT_FLAG;   pc_key[KEY_ALTGR]    = TRUE; }
-
-    if (s1&16) key_shifts |= KB_SCROLOCK_FLAG;
-    if (s1&32) key_shifts |= KB_NUMLOCK_FLAG;
-    if (s1&64) key_shifts |= KB_CAPSLOCK_FLAG;
-    update_leds(key_shifts);
-
-    key_enhanced = key_pause_loop = 0;
-    key_buffer.start = key_buffer.end = 0;
-    ENABLE();
-
-    pc_atexit(pc_remove_keyb);
-    keyboard_installed = TRUE;
-    return 0;
- }
+   if (keyboard_installed || pc_install_irq(KEYB_IRQ, keyboard)) {
+      return -1;
+   } else {
+      int s1, s2, s3;
+
+      LOCKDATA(key_buffer);
+      LOCKDATA(key_enhanced);
+      LOCKDATA(key_pause_loop);
+      LOCKDATA(key_shifts);
+      LOCKDATA(leds_ok);
+      LOCKDATA(in_a_terrupt);
+      LOCKDATA(pc_key);
+      LOCKDATA(modifier_table);
+      LOCKDATA(hw_to_mycode);
+      LOCKDATA(hw_to_mycode_ex);
+      LOCKDATA(standard_key_ascii_table);
+      LOCKDATA(standard_key_capslock_table);
+      LOCKDATA(standard_key_shift_table);
+      LOCKDATA(standard_key_control_table);
+      LOCKDATA(numlock_table);
+      LOCKFUNC(update_leds);
+      LOCKFUNC(inject_key);
+      LOCKFUNC(handle_code);
+      LOCKFUNC(keyboard);
+
+      DISABLE();
+      _farsetsel(__djgpp_dos_sel);
+      _farnspokew(0x41c, _farnspeekw(0x41a));
+
+      key_shifts = 0;
+      s1 = _farnspeekb(0x417);
+      s2 = _farnspeekb(0x418);
+      s3 = _farnspeekb(0x496);
+
+      if (s1 & 1) { key_shifts |= KB_SHIFT_FLAG; pc_key[KEY_RSHIFT]   = TRUE; }
+      if (s1 & 2) { key_shifts |= KB_SHIFT_FLAG; pc_key[KEY_LSHIFT]   = TRUE; }
+      if (s2 & 1) { key_shifts |= KB_CTRL_FLAG;  pc_key[KEY_LCONTROL] = TRUE; }
+      if (s2 & 2) { key_shifts |= KB_ALT_FLAG;   pc_key[KEY_ALT]      = TRUE; }
+      if (s3 & 4) { key_shifts |= KB_CTRL_FLAG;  pc_key[KEY_RCONTROL] = TRUE; }
+      if (s3 & 8) { key_shifts |= KB_ALT_FLAG;   pc_key[KEY_ALTGR]    = TRUE; }
+
+      if (s1 & 16) key_shifts |= KB_SCROLOCK_FLAG;
+      if (s1 & 32) key_shifts |= KB_NUMLOCK_FLAG;
+      if (s1 & 64) key_shifts |= KB_CAPSLOCK_FLAG;
+      update_leds(key_shifts);
+
+      key_enhanced = key_pause_loop = 0;
+      key_buffer.start = key_buffer.end = 0;
+      ENABLE();
+
+      pc_atexit(pc_remove_keyb);
+      keyboard_installed = TRUE;
+      return 0;
+   }
 }
diff --git a/src/glut/dos/PC_HW/pc_mouse.c b/src/glut/dos/PC_HW/pc_mouse.c
index fc0902ce81..5bf99d367f 100644
--- a/src/glut/dos/PC_HW/pc_mouse.c
+++ b/src/glut/dos/PC_HW/pc_mouse.c
@@ -1,7 +1,7 @@
 /*
  * PC/HW routine collection v1.3 for DOS/DJGPP
  *
- *  Copyright (C) 2002 - Borca Daniel
+ *  Copyright (C) 2002 - Daniel Borca
  *  Email : dborca@yahoo.com
  *  Web   : http://www.geocities.com/dborca
  */
@@ -14,16 +14,15 @@
 #include "pc_hw.h"
 
 
-
 #define PC_CUTE_WHEEL 1 /* CuteMouse WheelAPI */
 
 #define MOUSE_STACK_SIZE 16384
 
 #define CLEAR_MICKEYS() \
-        do { \
-            __asm __volatile ("movw $0xb, %%ax; int $0x33":::"%eax", "%ecx", "%edx"); \
-            ox = oy = 0; \
-        } while (0)
+   do { \
+      __asm __volatile ("movw $0xb, %%ax; int $0x33":::"%eax", "%ecx", "%edx"); \
+      ox = oy = 0; \
+   } while (0)
 
 extern void mouse_wrap (void);
 extern int mouse_wrap_end[];
@@ -33,7 +32,7 @@ static long mouse_callback;
 static __dpmi_regs mouse_regs;
 
 static volatile struct {
-       volatile int x, y, z, b;
+   volatile int x, y, z, b;
 } pc_mouse;
 
 static int minx = 0;
@@ -51,41 +50,44 @@ static int emulat3 = FALSE;
 static int ox, oy;
 
 
-static void mouse (__dpmi_regs *r)
+static void
+mouse (__dpmi_regs *r)
 {
- int nx = (signed short)r->x.si / sx;
- int ny = (signed short)r->x.di / sy;
- int dx = nx - ox;
- int dy = ny - oy;
+   int nx = (signed short)r->x.si / sx;
+   int ny = (signed short)r->x.di / sy;
+   int dx = nx - ox;
+   int dy = ny - oy;
 #if PC_CUTE_WHEEL
- int dz = (signed char)r->h.bh;
+   int dz = (signed char)r->h.bh;
 #endif
- ox = nx;
- oy = ny;
+   ox = nx;
+   oy = ny;
 
- pc_mouse.b = r->h.bl;
- pc_mouse.x = MID(minx, pc_mouse.x + dx, maxx);
- pc_mouse.y = MID(miny, pc_mouse.y + dy, maxy);
+   pc_mouse.b = r->h.bl;
+   pc_mouse.x = MID(minx, pc_mouse.x + dx, maxx);
+   pc_mouse.y = MID(miny, pc_mouse.y + dy, maxy);
 #if PC_CUTE_WHEEL
- pc_mouse.z = MID(minz, pc_mouse.z + dz, maxz);
+   pc_mouse.z = MID(minz, pc_mouse.z + dz, maxz);
 #endif
 
- if (emulat3) {
-    if ((pc_mouse.b&3)==3) {
-       pc_mouse.b = 4;
-    }
- }
+   if (emulat3) {
+      if ((pc_mouse.b & 3) == 3) {
+         pc_mouse.b = 4;
+      }
+   }
 
- if (mouse_func) {
-    mouse_func(pc_mouse.x, pc_mouse.y, pc_mouse.z, pc_mouse.b);
- }
+   if (mouse_func) {
+      mouse_func(pc_mouse.x, pc_mouse.y, pc_mouse.z, pc_mouse.b);
+   }
 } ENDOFUNC(mouse)
 
-void pc_remove_mouse (void)
+
+void
+pc_remove_mouse (void)
 {
- if (mouse_callback) {
-    pc_clexit(pc_remove_mouse);
-    __asm("\n\
+   if (mouse_callback) {
+      pc_clexit(pc_remove_mouse);
+      __asm("\n\
 		movl	%%edx, %%ecx	\n\
 		shrl	$16, %%ecx	\n\
 		movw	$0x0304, %%ax	\n\
@@ -93,61 +95,63 @@ void pc_remove_mouse (void)
 		movw	$0x000c, %%ax	\n\
 		xorl	%%ecx, %%ecx	\n\
 		int	$0x33		\n\
-    "::"d"(mouse_callback):"%eax", "%ecx");
+      "::"d"(mouse_callback):"%eax", "%ecx");
 
-    mouse_callback = 0;
+      mouse_callback = 0;
 
-    free((void *)(mouse_wrap_end[0] - MOUSE_STACK_SIZE));
- }
+      free((void *)(mouse_wrap_end[0] - MOUSE_STACK_SIZE));
+   }
 }
 
-int pc_install_mouse (void)
+
+int
+pc_install_mouse (void)
 {
- int buttons;
+   int buttons;
 
- /* fail if already call-backed */
- if (mouse_callback) {
-    return 0;
- }
+   /* fail if already call-backed */
+   if (mouse_callback) {
+      return 0;
+   }
 
- /* reset mouse and get status */
- __asm("\n\
+   /* reset mouse and get status */
+   __asm("\n\
 		xorl	%%eax, %%eax	\n\
 		int	$0x33		\n\
 		andl	%%ebx, %%eax	\n\
 		movl	%%eax, %0	\n\
- ":"=g" (buttons)::"%eax", "%ebx");
- if (!buttons) {
-    return 0;
- }
-
- /* lock wrapper */
- LOCKDATA(mouse_func);
- LOCKDATA(mouse_callback);
- LOCKDATA(mouse_regs);
- LOCKDATA(pc_mouse);
- LOCKDATA(minx);
- LOCKDATA(maxx);
- LOCKDATA(miny);
- LOCKDATA(maxy);
- LOCKDATA(minz);
- LOCKDATA(maxz);
- LOCKDATA(sx);
- LOCKDATA(sy);
- LOCKDATA(emulat3);
- LOCKDATA(ox);
- LOCKDATA(oy);
- LOCKFUNC(mouse);
- LOCKFUNC(mouse_wrap);
-
- mouse_wrap_end[1] = __djgpp_ds_alias;
- /* grab a locked stack */
- if ((mouse_wrap_end[0] = (int)pc_malloc(MOUSE_STACK_SIZE)) == NULL) {
-    return 0;
- }
-
- /* try to hook a call-back */
- __asm("\n\
+   ":"=g" (buttons)::"%eax", "%ebx");
+   if (!buttons) {
+      return 0;
+   }
+
+   /* lock wrapper */
+   LOCKDATA(mouse_func);
+   LOCKDATA(mouse_callback);
+   LOCKDATA(mouse_regs);
+   LOCKDATA(pc_mouse);
+   LOCKDATA(minx);
+   LOCKDATA(maxx);
+   LOCKDATA(miny);
+   LOCKDATA(maxy);
+   LOCKDATA(minz);
+   LOCKDATA(maxz);
+   LOCKDATA(sx);
+   LOCKDATA(sy);
+   LOCKDATA(emulat3);
+   LOCKDATA(ox);
+   LOCKDATA(oy);
+   LOCKFUNC(mouse);
+   LOCKFUNC(mouse_wrap);
+
+   mouse_wrap_end[1] = __djgpp_ds_alias;
+   /* grab a locked stack */
+   if ((mouse_wrap_end[0] = (int)pc_malloc(MOUSE_STACK_SIZE)) == NULL) {
+      return 0;
+   }
+
+   /* try to hook a call-back */
+   __asm("\n\
 		pushl	%%ds		\n\
 		pushl	%%es		\n\
 		movw	$0x0303, %%ax	\n\
@@ -163,86 +167,97 @@ int pc_install_mouse (void)
 		movw	%%dx, %%cx	\n\
 		movl	%%ecx, %0	\n\
 	0:				\n\
- ":"=g"(mouse_callback)
-  :"S" (mouse_wrap), "D"(&mouse_regs)
-  :"%eax", "%ecx", "%edx");
- if (!mouse_callback) {
-    free((void *)mouse_wrap_end[0]);
-    return 0;
- }
-
- /* adjust stack */
- mouse_wrap_end[0] += MOUSE_STACK_SIZE;
-
- /* install the handler */
- mouse_regs.x.ax = 0x000c;
+   ":"=g"(mouse_callback)
+    :"S" (mouse_wrap), "D"(&mouse_regs)
+    :"%eax", "%ecx", "%edx");
+   if (!mouse_callback) {
+      free((void *)mouse_wrap_end[0]);
+      return 0;
+   }
+
+   /* adjust stack */
+   mouse_wrap_end[0] += MOUSE_STACK_SIZE;
+
+   /* install the handler */
+   mouse_regs.x.ax = 0x000c;
 #if PC_CUTE_WHEEL
- mouse_regs.x.cx = 0x7f | 0x80;
+   mouse_regs.x.cx = 0x7f | 0x80;
 #else
- mouse_regs.x.cx = 0x7f;
+   mouse_regs.x.cx = 0x7f;
 #endif
- mouse_regs.x.dx = mouse_callback&0xffff;
- mouse_regs.x.es = mouse_callback>>16;
- __dpmi_int(0x33, &mouse_regs);
+   mouse_regs.x.dx = mouse_callback & 0xffff;
+   mouse_regs.x.es = mouse_callback >> 16;
+   __dpmi_int(0x33, &mouse_regs);
 
- CLEAR_MICKEYS();
+   CLEAR_MICKEYS();
 
- emulat3 = buttons<3;
- pc_atexit(pc_remove_mouse);
- return buttons;
+   emulat3 = (buttons < 3);
+   pc_atexit(pc_remove_mouse);
+   return buttons;
 }
 
-MFUNC pc_install_mouse_handler (MFUNC handler)
+
+MFUNC
+pc_install_mouse_handler (MFUNC handler)
 {
- MFUNC old;
+   MFUNC old;
 
- if (!mouse_callback && !pc_install_mouse()) {
-    return NULL;
- }
+   if (!mouse_callback && !pc_install_mouse()) {
+      return NULL;
+   }
 
- old = mouse_func;
- mouse_func = handler;
- return old;
+   old = mouse_func;
+   mouse_func = handler;
+   return old;
 }
 
-void pc_mouse_area (int x1, int y1, int x2, int y2)
+
+void
+pc_mouse_area (int x1, int y1, int x2, int y2)
 {
- minx = x1;
- maxx = x2;
- miny = y1;
- maxy = y2;
+   minx = x1;
+   maxx = x2;
+   miny = y1;
+   maxy = y2;
 }
 
-void pc_mouse_speed (int xspeed, int yspeed)
+
+void
+pc_mouse_speed (int xspeed, int yspeed)
 {
- DISABLE();
+   DISABLE();
 
- sx = MAX(1, xspeed);
- sy = MAX(1, yspeed);
+   sx = MAX(1, xspeed);
+   sy = MAX(1, yspeed);
 
- ENABLE();
+   ENABLE();
 }
 
-int pc_query_mouse (int *x, int *y, int *z)
+
+int
+pc_query_mouse (int *x, int *y, int *z)
 {
- *x = pc_mouse.x;
- *y = pc_mouse.y;
- *z = pc_mouse.z;
- return pc_mouse.b;
+   *x = pc_mouse.x;
+   *y = pc_mouse.y;
+   *z = pc_mouse.z;
+   return pc_mouse.b;
 }
 
-void pc_warp_mouse (int x, int y)
+
+void
+pc_warp_mouse (int x, int y)
 {
- CLEAR_MICKEYS();
+   CLEAR_MICKEYS();
 
- pc_mouse.x = MID(minx, x, maxx);
- pc_mouse.y = MID(miny, y, maxy);
+   pc_mouse.x = MID(minx, x, maxx);
+   pc_mouse.y = MID(miny, y, maxy);
 
- if (mouse_func) {
-    mouse_func(pc_mouse.x, pc_mouse.y, pc_mouse.z, pc_mouse.b);
- }
+   if (mouse_func) {
+      mouse_func(pc_mouse.x, pc_mouse.y, pc_mouse.z, pc_mouse.b);
+   }
 }
 
+
 /* Hack alert:
  * `mouse_wrap_end' actually holds the
  * address of stack in a safe data selector.
diff --git a/src/glut/dos/PC_HW/pc_timer.c b/src/glut/dos/PC_HW/pc_timer.c
index 530ed72a49..e7cbe70a1f 100644
--- a/src/glut/dos/PC_HW/pc_timer.c
+++ b/src/glut/dos/PC_HW/pc_timer.c
@@ -1,7 +1,7 @@
 /*
  * PC/HW routine collection v1.5 for DOS/DJGPP
  *
- *  Copyright (C) 2002 - Borca Daniel
+ *  Copyright (C) 2002 - Daniel Borca
  *  Email : dborca@yahoo.com
  *  Web   : http://www.geocities.com/dborca
  */
@@ -25,15 +25,14 @@
 static int timer_installed;
 
 typedef struct {
-        volatile unsigned int counter, clock_ticks, freq;
-        volatile PFUNC func;
-        volatile void *parm;
+   volatile unsigned int counter, clock_ticks, freq;
+   volatile PFUNC func;
+   volatile void *parm;
 } TIMER;
 
 static TIMER timer_main, timer_func[MAX_TIMERS];
 
 
-
 /* Desc: main timer callback
  *
  * In  : -
@@ -41,33 +40,33 @@ static TIMER timer_main, timer_func[MAX_TIMERS];
  *
  * Note: -
  */
-static int timer ()
+static int
+timer ()
 {
- int i;
-
- for (i = 0; i < MAX_TIMERS; i++) {
-     TIMER *t = &timer_func[i];
-     if (t->func) {
-        t->clock_ticks += t->counter;
-        if (t->clock_ticks >= timer_main.counter) {
-           t->clock_ticks -= timer_main.counter;
-           t->func(unvolatile(t->parm, void *));
-        }
-     }
- }
-
- timer_main.clock_ticks += timer_main.counter;
- if (timer_main.clock_ticks >= 0x10000) {
-    timer_main.clock_ticks -= 0x10000;
-    return 1;
- } else {
-    outportb(0x20, 0x20);
-    return 0;
- }
+   int i;
+
+   for (i = 0; i < MAX_TIMERS; i++) {
+      TIMER *t = &timer_func[i];
+      if (t->func) {
+         t->clock_ticks += t->counter;
+         if (t->clock_ticks >= timer_main.counter) {
+            t->clock_ticks -= timer_main.counter;
+            t->func(unvolatile(t->parm, void *));
+         }
+      }
+   }
+
+   timer_main.clock_ticks += timer_main.counter;
+   if (timer_main.clock_ticks >= 0x10000) {
+      timer_main.clock_ticks -= 0x10000;
+      return 1;
+   } else {
+      outportb(0x20, 0x20);
+      return 0;
+   }
 } ENDOFUNC(timer)
 
 
-
 /* Desc: uninstall timer engine
  *
  * In  : -
@@ -75,24 +74,24 @@ static int timer ()
  *
  * Note: -
  */
-void pc_remove_timer (void)
+void
+pc_remove_timer (void)
 {
- if (timer_installed) {
-    timer_installed = FALSE;
-    pc_clexit(pc_remove_timer);
-
-    DISABLE();
-    outportb(0x43, 0x34);
-    outportb(0x40, 0);
-    outportb(0x40, 0);
-    ENABLE();
-
-    pc_remove_irq(TIMER_IRQ);
- }
+   if (timer_installed) {
+      timer_installed = FALSE;
+      pc_clexit(pc_remove_timer);
+
+      DISABLE();
+      outportb(0x43, 0x34);
+      outportb(0x40, 0);
+      outportb(0x40, 0);
+      ENABLE();
+
+      pc_remove_irq(TIMER_IRQ);
+   }
 }
 
 
-
 /* Desc: remove timerfunc
  *
  * In  : timerfunc id
@@ -100,65 +99,65 @@ void pc_remove_timer (void)
  *
  * Note: tries to relax the main timer whenever possible
  */
-int pc_remove_int (int fid)
+int
+pc_remove_int (int fid)
 {
- int i;
- unsigned int freq = 0;
-
- /* are we installed? */
- if (!timer_installed) {
-    return -1;
- }
-
- /* sanity check */
- if ((fid < 0) || (fid >= MAX_TIMERS) || (timer_func[fid].func == NULL)) {
-    return -1;
- }
- timer_func[fid].func = NULL;
-
- /* scan for maximum frequency */
- for (i = 0; i < MAX_TIMERS; i++) {
-     TIMER *t = &timer_func[i];
-     if (t->func) {
-        if (freq < t->freq) {
-           freq = t->freq;
-        }
-     }
- }
-
- /* if there are no callbacks left, cleanup */
- if (!freq) {
-    pc_remove_timer();
-    return 0;
- }
-
- /* if we just lowered the maximum frequency, try to relax the timer engine */
- if (freq < timer_main.freq) {
-    unsigned int new_counter = PIT_FREQ / freq;
-
-    DISABLE();
-
-    for (i = 0; i < MAX_TIMERS; i++) {
-        if (timer_func[i].func) {
-           ADJUST(timer_func[i], freq);
-        }
-    }
-
-    outportb(0x43, 0x34);
-    outportb(0x40, (unsigned char)new_counter);
-    outportb(0x40, (unsigned char)(new_counter>>8));
-    timer_main.clock_ticks = 0;
-    timer_main.counter = new_counter;
-    timer_main.freq = freq;
-
-    ENABLE();
- }
+   int i;
+   unsigned int freq = 0;
+
+   /* are we installed? */
+   if (!timer_installed) {
+      return -1;
+   }
+
+   /* sanity check */
+   if ((fid < 0) || (fid >= MAX_TIMERS) || (timer_func[fid].func == NULL)) {
+      return -1;
+   }
+   timer_func[fid].func = NULL;
+
+   /* scan for maximum frequency */
+   for (i = 0; i < MAX_TIMERS; i++) {
+      TIMER *t = &timer_func[i];
+      if (t->func) {
+         if (freq < t->freq) {
+            freq = t->freq;
+         }
+      }
+   }
+
+   /* if there are no callbacks left, cleanup */
+   if (!freq) {
+      pc_remove_timer();
+      return 0;
+   }
+
+   /* if we just lowered the maximum frequency, try to relax the timer engine */
+   if (freq < timer_main.freq) {
+      unsigned int new_counter = PIT_FREQ / freq;
+
+      DISABLE();
+
+      for (i = 0; i < MAX_TIMERS; i++) {
+         if (timer_func[i].func) {
+            ADJUST(timer_func[i], freq);
+         }
+      }
+
+      outportb(0x43, 0x34);
+      outportb(0x40, (unsigned char)new_counter);
+      outportb(0x40, (unsigned char)(new_counter>>8));
+      timer_main.clock_ticks = 0;
+      timer_main.counter = new_counter;
+      timer_main.freq = freq;
+
+      ENABLE();
+   }
  
- return 0;
+   return 0;
 } ENDOFUNC(pc_remove_int)
 
 
-
 /* Desc: adjust timerfunc
  *
  * In  : timerfunc id, new frequency (Hz)
@@ -166,64 +165,64 @@ int pc_remove_int (int fid)
  *
  * Note: might change the main timer frequency
  */
-int pc_adjust_int (int fid, unsigned int freq)
+int
+pc_adjust_int (int fid, unsigned int freq)
 {
- int i;
-
- /* are we installed? */
- if (!timer_installed) {
-    return -1;
- }
-
- /* sanity check */
- if ((fid < 0) || (fid >= MAX_TIMERS) || (timer_func[fid].func == NULL)) {
-    return -1;
- }
- timer_func[fid].freq = freq;
-
- /* scan for maximum frequency */
- freq = 0;
- for (i = 0; i < MAX_TIMERS; i++) {
-     TIMER *t = &timer_func[i];
-     if (t->func) {
-        if (freq < t->freq) {
-           freq = t->freq;
-        }
-     }
- }
-
- /* update main timer / sons to match highest frequency */
- DISABLE();
-
- /* using '>' is correct still (and avoids updating
-  * the HW timer too often), but doesn't relax the timer!
-  */
- if (freq != timer_main.freq) {
-    unsigned int new_counter = PIT_FREQ / freq;
-
-    for (i = 0; i < MAX_TIMERS; i++) {
-        if (timer_func[i].func) {
-           ADJUST(timer_func[i], freq);
-        }
-    }
-
-    outportb(0x43, 0x34);
-    outportb(0x40, (unsigned char)new_counter);
-    outportb(0x40, (unsigned char)(new_counter>>8));
-    timer_main.clock_ticks = 0;
-    timer_main.counter = new_counter;
-    timer_main.freq = freq;
- } else {
-    ADJUST(timer_func[fid], timer_main.freq);
- }
-
- ENABLE();
-
- return 0;
+   int i;
+
+   /* are we installed? */
+   if (!timer_installed) {
+      return -1;
+   }
+
+   /* sanity check */
+   if ((fid < 0) || (fid >= MAX_TIMERS) || (timer_func[fid].func == NULL)) {
+      return -1;
+   }
+   timer_func[fid].freq = freq;
+
+   /* scan for maximum frequency */
+   freq = 0;
+   for (i = 0; i < MAX_TIMERS; i++) {
+      TIMER *t = &timer_func[i];
+      if (t->func) {
+         if (freq < t->freq) {
+            freq = t->freq;
+         }
+      }
+   }
+
+   /* update main timer / sons to match highest frequency */
+   DISABLE();
+
+   /* using '>' is correct still (and avoids updating
+    * the HW timer too often), but doesn't relax the timer!
+    */
+   if (freq != timer_main.freq) {
+      unsigned int new_counter = PIT_FREQ / freq;
+
+      for (i = 0; i < MAX_TIMERS; i++) {
+         if (timer_func[i].func) {
+            ADJUST(timer_func[i], freq);
+         }
+      }
+
+      outportb(0x43, 0x34);
+      outportb(0x40, (unsigned char)new_counter);
+      outportb(0x40, (unsigned char)(new_counter>>8));
+      timer_main.clock_ticks = 0;
+      timer_main.counter = new_counter;
+      timer_main.freq = freq;
+   } else {
+      ADJUST(timer_func[fid], timer_main.freq);
+   }
+
+   ENABLE();
+
+   return 0;
 } ENDOFUNC(pc_adjust_int)
 
 
-
 /* Desc: install timer engine
  *
  * In  : -
@@ -231,36 +230,36 @@ int pc_adjust_int (int fid, unsigned int freq)
  *
  * Note: initial frequency is 18.2 Hz
  */
-static int install_timer (void)
+static int
+install_timer (void)
 {
- if (timer_installed || pc_install_irq(TIMER_IRQ, timer)) {
-    return -1;
- } else {
-    memset(timer_func, 0, sizeof(timer_func));
- 
-    LOCKDATA(timer_func);
-    LOCKDATA(timer_main);
-    LOCKFUNC(timer);
-    LOCKFUNC(pc_adjust_int);
-    LOCKFUNC(pc_remove_int);
-
-    timer_main.counter = 0x10000;
-
-    DISABLE();
-    outportb(0x43, 0x34);
-    outportb(0x40, 0);
-    outportb(0x40, 0);
-    timer_main.clock_ticks = 0;
-    ENABLE();
-
-    pc_atexit(pc_remove_timer);
-    timer_installed = TRUE;
-    return 0;
- }
+   if (timer_installed || pc_install_irq(TIMER_IRQ, timer)) {
+      return -1;
+   } else {
+      memset(timer_func, 0, sizeof(timer_func));
+
+      LOCKDATA(timer_func);
+      LOCKDATA(timer_main);
+      LOCKFUNC(timer);
+      LOCKFUNC(pc_adjust_int);
+      LOCKFUNC(pc_remove_int);
+
+      timer_main.counter = 0x10000;
+
+      DISABLE();
+      outportb(0x43, 0x34);
+      outportb(0x40, 0);
+      outportb(0x40, 0);
+      timer_main.clock_ticks = 0;
+      ENABLE();
+
+      pc_atexit(pc_remove_timer);
+      timer_installed = TRUE;
+      return 0;
+   }
 }
 
 
-
 /* Desc: install timerfunc
  *
  * In  : callback function, opaque pointer to be passed to callee, freq (Hz)
@@ -268,60 +267,61 @@ static int install_timer (void)
  *
  * Note: returns -1 if error
  */
-int pc_install_int (PFUNC func, void *parm, unsigned int freq)
+int
+pc_install_int (PFUNC func, void *parm, unsigned int freq)
 {
- int i;
- TIMER *t = NULL;
-
- /* ensure the timer engine is set up */
- if (!timer_installed) {
-    if (install_timer()) {
-       return -1;
-    }
- }
-
- /* find an empty slot */
- for (i = 0; i < MAX_TIMERS; i++) {
-     if (!timer_func[i].func) {
-        t = &timer_func[i];
-        break;
-     }
- }
- if (t == NULL) {
-    return -1;
- }
-
- DISABLE();
-
- t->func = func;
- t->parm = parm;
- t->freq = freq;
- t->clock_ticks = 0;
-
- /* update main timer / sons to match highest frequency */
- if (freq > timer_main.freq) {
-    unsigned int new_counter = PIT_FREQ / freq;
-
-    for (i = 0; i < MAX_TIMERS; i++) {
-        if (timer_func[i].func) {
-           ADJUST(timer_func[i], freq);
-        }
-    }
-
-    outportb(0x43, 0x34);
-    outportb(0x40, (unsigned char)new_counter);
-    outportb(0x40, (unsigned char)(new_counter>>8));
-    timer_main.clock_ticks = 0;
-    timer_main.counter = new_counter;
-    timer_main.freq = freq;
- } else {
-    /* t == &timer_func[i] */
-    ADJUST(timer_func[i], timer_main.freq);
- }
-
- i = t - timer_func;
-
- ENABLE();
-
- return i;
+   int i;
+   TIMER *t = NULL;
+
+   /* ensure the timer engine is set up */
+   if (!timer_installed) {
+      if (install_timer()) {
+         return -1;
+      }
+   }
+
+   /* find an empty slot */
+   for (i = 0; i < MAX_TIMERS; i++) {
+       if (!timer_func[i].func) {
+          t = &timer_func[i];
+          break;
+       }
+   }
+   if (t == NULL) {
+      return -1;
+   }
+
+   DISABLE();
+
+   t->func = func;
+   t->parm = parm;
+   t->freq = freq;
+   t->clock_ticks = 0;
+
+   /* update main timer / sons to match highest frequency */
+   if (freq > timer_main.freq) {
+      unsigned int new_counter = PIT_FREQ / freq;
+
+      for (i = 0; i < MAX_TIMERS; i++) {
+         if (timer_func[i].func) {
+            ADJUST(timer_func[i], freq);
+         }
+      }
+
+      outportb(0x43, 0x34);
+      outportb(0x40, (unsigned char)new_counter);
+      outportb(0x40, (unsigned char)(new_counter>>8));
+      timer_main.clock_ticks = 0;
+      timer_main.counter = new_counter;
+      timer_main.freq = freq;
+   } else {
+      /* t == &timer_func[i] */
+      ADJUST(timer_func[i], timer_main.freq);
+   }
+
+   i = t - timer_func;
+
+   ENABLE();
+
+   return i;
 }