Reduce the number of spelling mistakes.

9 files changed, 22 insertions, 22 deletions

diff --git a/usr.bin/doscmd/cwd.c b/usr.bin/doscmd/cwd.c
index 7931d83..3ba92f0 100644
--- a/usr.bin/doscmd/cwd.c
+++ b/usr.bin/doscmd/cwd.c
@@ -271,7 +271,7 @@ dos_makepath(u_char *where, u_char *newpath)
 
 /*
  * Set DOS's idea of the CWD for drive to be where.
- * Returns DOS errno on failuer.
+ * Returns DOS errno on failure.
  */
 int
 dos_setcwd(u_char *where)
@@ -954,7 +954,7 @@ printf("find_next: found %s\n",name);
 }
 
 /*
- * perfrom hokey DOS pattern matching.  pattern may contain the wild cards
+ * perform hokey DOS pattern matching.  pattern may contain the wild cards
  * '*' and '?' only.  Follow the DOS convention that '?*', '*?' and '**' all
  * are the same as '*'.  Also, allow '?' to match the blank padding in a
  * name (hence, ???? matchs all of "a", "ab", "abc" and "abcd" but not "abcde")
diff --git a/usr.bin/doscmd/dos.h b/usr.bin/doscmd/dos.h
index cc770f7..b75963f 100644
--- a/usr.bin/doscmd/dos.h
+++ b/usr.bin/doscmd/dos.h
@@ -226,7 +226,7 @@ typedef struct {
     u_short	dta_seg		__attribute__ ((packed));	/*   0Ch    DWORD   current DTA */
     u_short	psp		__attribute__ ((packed));	/*   10h    WORD    current PSP */
     u_short	int_23_sp	__attribute__ ((packed));	/*   12h    WORD    stores SP across an INT 23 */
-    u_short	wait_status	__attribute__ ((packed));	/*   14h    WORD    return code from last process termination (zerod after reading with AH=4Dh) */
+    u_short	wait_status	__attribute__ ((packed));	/*   14h    WORD    return code from last process termination (set to 0 after reading with AH=4Dh) */
     u_char	current_drive	__attribute__ ((packed));	/*   16h    BYTE    current drive */
     u_char	break_flag	__attribute__ ((packed));	/*   17h    BYTE    extended break flag */
     u_char	unknown1[2]	__attribute__ ((packed));	/*   18h  2 BYTEs   ??? */
@@ -336,7 +336,7 @@ struct exehdr {
 	u_short nreloc;
 	u_short hdr_size; /* paragraphs */
 	u_short min_memory; /* paragraphs */
-	u_short max_memory; /* pargraphs */
+	u_short max_memory; /* paragraphs */
 	u_short init_ss;
 	u_short init_sp;
 	u_short checksum;
diff --git a/usr.bin/doscmd/ems.c b/usr.bin/doscmd/ems.c
index 400781a..39c0d87 100644
--- a/usr.bin/doscmd/ems.c
+++ b/usr.bin/doscmd/ems.c
@@ -37,7 +37,7 @@ __FBSDID("$FreeBSD$");
  * is ems_entry(..). The emulator needs to be initialized before the first
  * call. The first step of the initialization is done during program startup
  * the second part is done during DOS boot, from a call of the DOS driver.
- * The DOS driver is neccessary because DOS programs look for it to
+ * The DOS driver is necessary because DOS programs look for it to
  * determine if EMS is available.
  *
  * To emulate a configurable amount of EMS memory we use a file created
@@ -109,7 +109,7 @@ struct copydesc {
     short     copytype;		/* Type of source and destination memory */
     EMS_addr  src_addr;		/* Combined pointer for source */
     EMS_addr  dst_addr;		/* Combined pointer for destination */
-    u_long  rest_len;		/* Lenght to copy */
+    u_long  rest_len;		/* Length to copy */
 };
 
 
@@ -1529,7 +1529,7 @@ copy_block_up(struct copydesc *cdp)
     void *dstp;
 
     /* If source or both memory types are EMS, source determines the
-     * block lenght, else destination determines the block lenght
+     * block length, else destination determines the block length
      */
     if (cdp->copytype & SRC_EMS)
 	size = EMS_PAGESIZE - cdp->EMS_OFFS(src_addr);
diff --git a/usr.bin/doscmd/emuint.c b/usr.bin/doscmd/emuint.c
index 1bb4f86..d00a767 100644
--- a/usr.bin/doscmd/emuint.c
+++ b/usr.bin/doscmd/emuint.c
@@ -41,7 +41,7 @@ __FBSDID("$FreeBSD$");
  * To call emuint from VM86 space do:
  *	push ax		   Save original ax value (*must be done* !)
  *	mov  ah, funcnum   Emuint function number to ah
- *	mov  al, subfunc   Subfunction number, optional, depening on func
+ *	mov  al, subfunc   Subfunction number, optional, depending on func
  *	int  0xff		
  *	..
  *	..
diff --git a/usr.bin/doscmd/emuint.h b/usr.bin/doscmd/emuint.h
index d379768..bd53981 100644
--- a/usr.bin/doscmd/emuint.h
+++ b/usr.bin/doscmd/emuint.h
@@ -35,7 +35,7 @@
  * Interrupt 0xFF is used by some emulator functions. It is a portal into
  * the emulator and cannot be used by ordinary DOS applications directly
  * The interrupt 0xFF is called by helper functions under DOS (such as
- * the redirector interfcae and the EMS emulation).
+ * the redirector interface and the EMS emulation).
  * There are functions and subfunctions defined. (See emuint.c for details)
  */
 
diff --git a/usr.bin/doscmd/trace.c b/usr.bin/doscmd/trace.c
index a171dad..d99dff6 100644
--- a/usr.bin/doscmd/trace.c
+++ b/usr.bin/doscmd/trace.c
@@ -50,9 +50,9 @@ static inline void	showstate(long, long, char);
  * 1) Always set the trap flag.
  * 2) If this is a POPF or IRET instruction, set the trap flag in the saved
  *    flag state on the stack.
- * On enterint from VM86 mode:
+ * On entering from VM86 mode:
  * 1) Restore the trap flag from our saved flag state.
- * 2) If we just finished a POPF or IRET unstruction, patch the saved flag
+ * 2) If we just finished a POPF or IRET instruction, patch the saved flag
  *    state on the stack.
  */
 
diff --git a/usr.bin/doscmd/tty.c b/usr.bin/doscmd/tty.c
index 03dfc62..506a04e 100644
--- a/usr.bin/doscmd/tty.c
+++ b/usr.bin/doscmd/tty.c
@@ -197,8 +197,8 @@ static void	vram2ximage(void);
 #define	K4_SLOCK_LED	0x01
 #define	K4_NLOCK_LED	0x02
 #define	K4_CLOCK_LED	0x04
-#define	K4_ACK		0x10		/* ACK recieved from keyboard */
-#define	K4_RESEND	0x20		/* RESEND recieved from keyboard */
+#define	K4_ACK		0x10		/* ACK received from keyboard */
+#define	K4_RESEND	0x20		/* RESEND received from keyboard */
 #define	K4_LED		0x40		/* LED update in progress */
 #define	K4_ERROR	0x80
 
diff --git a/usr.bin/doscmd/xms.c b/usr.bin/doscmd/xms.c
index 395d09a..046b861 100644
--- a/usr.bin/doscmd/xms.c
+++ b/usr.bin/doscmd/xms.c
@@ -30,12 +30,12 @@
 __FBSDID("$FreeBSD$");
 
 /*
- * XMS memory manmagement 
+ * XMS memory management 
  *
  * To emulate DOS extended memory (EMM) we use an implementation of
- * HIMEM.SYS driver capabitlities, according to the XMS 3.0 Spec.
+ * HIMEM.SYS driver capabilities, according to the XMS 3.0 Spec.
  * The actual memory allocated via XMS calls from DOS is allocated
- * via malloc by the emulator. Maximum memory allocation is configureable.
+ * via malloc by the emulator. Maximum memory allocation is configurable.
  *
  * Credits to:
  *	The original author of this file, some parts are still here
@@ -126,14 +126,14 @@ xms_init(void)
 
 /*
  * UMB management routines: UMBs normally lie between 0xd0000 and
- * 0xefff0 in VM86 memory space and are accessible for all DOS applictions.
+ * 0xefff0 in VM86 memory space and are accessible for all DOS applications.
  * We could enable more space, but with the emulator we do not
  * need many drivers, so I think 2 * 64kB will suffice. If EMS emulation
  * exists, a 64kB segment (0xe0000 - 0xeffff for example) is needed for
  * the EMS mapping, in this case we have 64kB UMB space. This is more than 
  * many PCs are able to do.
  * This emulation does only the management for the memory, the memory
- * is present and read/write/excutable for VM86 applications.
+ * is present and read/write/executable for VM86 applications.
  */
 
 /* Add a block to a list, maintain ascending start address order */
diff --git a/usr.bin/doscmd/xms.h b/usr.bin/doscmd/xms.h
index 5189028..477fd84 100644
--- a/usr.bin/doscmd/xms.h
+++ b/usr.bin/doscmd/xms.h
@@ -35,7 +35,7 @@
 #define XMS_REVISION  0x0100  /* driver revision 1.0 */
 
 #define NUM_HANDLES     64	/* number of available handles */
-#define FIRST_HANDLE    1	/* number of firts valid handle */
+#define FIRST_HANDLE    1	/* number of first valid handle */
 #define PARAGRAPH       16      /* bytes in a paragraph */
 #define MAX_BLOCK_LOCKS 256	/* number of locks on a block */
 #define DEFAULT_EMM_SIZE 512 * 1024    /* default EMM size */
@@ -60,7 +60,7 @@
 #define  XMS_ALLOCATE_UMB               	0x10
 #define  XMS_DEALLOCATE_UMB             	0x11
 #define  XMS_REALLOCATE_UMB			0x12
-/* New functions for values bigger than 65MB, not implented yet */
+/* New functions for values bigger than 65MB, not implanted yet */
 #define  XMS_QUERY_FREE_EXTENDED_MEMORY_LARGE	0x88
 #define  XMS_ALLOCATE_EXTENDED_MEMORY_LARGE   	0x89
 #define  XMS_FREE_EXTENDED_MEMORY_LARGE       	0x8a
@@ -118,7 +118,7 @@ struct XMSinfo {
 };
 
 /*
- * Handle management inside the emulator for extendend memory pages, 
+ * Handle management inside the emulator for extended memory pages, 
  * invisible to DOS
  */
 
@@ -129,7 +129,7 @@ typedef struct {
 } XMS_handle;
 
 /*
- * Managment of UMB memory paragraphs (16 bytes). UMB blocks are
+ * Management of UMB memory paragraphs (16 bytes). UMB blocks are
  * directly accessible by VM86 applications and lie between 0xd0000 and
  * 0xefff0 in VM86 memory space. 
  */