move stub.c up to main dir

2 files changed, 4 insertions, 1556 deletions

diff --git a/gdb/config/sh/.Sanitize b/gdb/config/sh/.Sanitize
index 8e95867..442a165 100644
--- a/gdb/config/sh/.Sanitize
+++ b/gdb/config/sh/.Sanitize
@@ -1,4 +1,6 @@
-# Each directory to survive it's way into a release will need a file
+# .Sanitize for devo/gdb/config/sh.
+
+# Each directory to survive its way into a release will need a file
 # like this one called "./.Sanitize".  All keyword lines must exist,
 # and must exist in the order specified by this file.  Each directory
 # in the tree will be processed, top down, in the following order.
@@ -9,7 +11,7 @@
 
 # The lines between the "Do-first:" line and the "Things-to-keep:"
 # line are executed as a /bin/sh shell script before anything else is
-# done in this 
+# done in this directory.
 
 Do-first:
 
@@ -23,7 +25,6 @@ Things-to-keep:
 
 sh.mt
 tm-sh.h
-stub.c
 
 Things-to-lose:
 
diff --git a/gdb/config/sh/stub.c b/gdb/config/sh/stub.c
deleted file mode 100644
index 86c3f0b..0000000
--- a/gdb/config/sh/stub.c
+++ /dev/null
@@ -1,1553 +0,0 @@
-/* sh-stub.c -- debugging stub for the Hitachi-SH. 
-
- NOTE!! This code has to be compiled with optimization, otherwise the 
- function inlining which generates the exception handlers won't work.
- 
-*/
-
-/*   This is originally based on an m68k software stub written by Glenn
-     Engel at HP, but has changed quite a bit. 
-
-     Modifications for the SH by Ben Lee and Steve Chamberlain
-
-*/
-
-/****************************************************************************
-
-		THIS SOFTWARE IS NOT COPYRIGHTED
-
-   HP offers the following for use in the public domain.  HP makes no
-   warranty with regard to the software or it's performance and the
-   user accepts the software "AS IS" with all faults.
-
-   HP DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD
-   TO THIS SOFTWARE INCLUDING BUT NOT LIMITED TO THE WARRANTIES
-   OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-
-****************************************************************************/
-
-
-/* Remote communication protocol.
-
-   A debug packet whose contents are <data>
-   is encapsulated for transmission in the form:
-
-	$ <data> # CSUM1 CSUM2
-
-	<data> must be ASCII alphanumeric and cannot include characters
-	'$' or '#'.  If <data> starts with two characters followed by
-	':', then the existing stubs interpret this as a sequence number.
-
-	CSUM1 and CSUM2 are ascii hex representation of an 8-bit 
-	checksum of <data>, the most significant nibble is sent first.
-	the hex digits 0-9,a-f are used.
-
-   Receiver responds with:
-
-	+	- if CSUM is correct and ready for next packet
-	-	- if CSUM is incorrect
-
-   <data> is as follows:
-   All values are encoded in ascii hex digits.
-
-	Request		Packet
-
-	read registers  g
-	reply		XX....X		Each byte of register data
-					is described by two hex digits.
-					Registers are in the internal order
-					for GDB, and the bytes in a register
-					are in the same order the machine uses.
-			or ENN		for an error.
-
-	write regs	GXX..XX		Each byte of register data
-					is described by two hex digits.
-	reply		OK		for success
-			ENN		for an error
-
-        write reg	Pn...=r...	Write register n... with value r...,
-					which contains two hex digits for each
-					byte in the register (target byte
-					order).
-	reply		OK		for success
-			ENN		for an error
-	(not supported by all stubs).
-
-	read mem	mAA..AA,LLLL	AA..AA is address, LLLL is length.
-	reply		XX..XX		XX..XX is mem contents
-					Can be fewer bytes than requested
-					if able to read only part of the data.
-			or ENN		NN is errno
-
-	write mem	MAA..AA,LLLL:XX..XX
-					AA..AA is address,
-					LLLL is number of bytes,
-					XX..XX is data
-	reply		OK		for success
-			ENN		for an error (this includes the case
-					where only part of the data was
-					written).
-
-	cont		cAA..AA		AA..AA is address to resume
-					If AA..AA is omitted,
-					resume at same address.
-
-	step		sAA..AA		AA..AA is address to resume
-					If AA..AA is omitted,
-					resume at same address.
-
-	last signal     ?               Reply the current reason for stopping.
-                                        This is the same reply as is generated
-					for step or cont : SAA where AA is the
-					signal number.
-
-	There is no immediate reply to step or cont.
-	The reply comes when the machine stops.
-	It is		SAA		AA is the "signal number"
-
-	or...		TAAn...:r...;n:r...;n...:r...;
-					AA = signal number
-					n... = register number
-					r... = register contents
-	or...		WAA		The process exited, and AA is
-					the exit status.  This is only
-					applicable for certains sorts of
-					targets.
-	kill request	k
-
-	toggle debug	d		toggle debug flag (see 386 & 68k stubs)
-	reset		r		reset -- see sparc stub.
-	reserved	<other>		On other requests, the stub should
-					ignore the request and send an empty
-					response ($#<checksum>).  This way
-					we can extend the protocol and GDB
-					can tell whether the stub it is
-					talking to uses the old or the new.
-	search		tAA:PP,MM	Search backwards starting at address
-					AA for a match with pattern PP and
-					mask MM.  PP and MM are 4 bytes.
-					Not supported by all stubs.
-
-	general query	qXXXX		Request info about XXXX.
-	general set	QXXXX=yyyy	Set value of XXXX to yyyy.
-	query sect offs	qOffsets	Get section offsets.  Reply is
-					Text=xxx;Data=yyy;Bss=zzz
-	console output	Otext		Send text to stdout.  Only comes from
-					remote target.
-
-	Responses can be run-length encoded to save space.  A '*' means that
-	the next character is an ASCII encoding giving a repeat count which
-	stands for that many repititions of the character preceding the '*'.
-	The encoding is n+29, yielding a printable character where n >=3 
-	(which is where rle starts to win).  Don't use an n > 126. 
-
-	So 
-	"0* " means the same as "0000".  */
-
-#include <string.h>
-#include <setjmp.h>
-
-
-
-#define COND_BR_MASK	0xff00
-#define UCOND_DBR_MASK	0xe000
-#define UCOND_RBR_MASK	0xf0df
-#define TRAPA_MASK		0xff00
-
-#define COND_DISP		0x00ff
-#define UCOND_DISP		0x0fff
-#define UCOND_REG		0x0f00
-
-#define BF_INSTR		0x8b00
-#define BT_INSTR		0x8900
-#define BRA_INSTR		0xa000
-#define BSR_INSTR		0xb000
-#define JMP_INSTR		0x402b
-#define JSR_INSTR		0x400b
-#define RTS_INSTR		0x000b
-#define RTE_INSTR		0x002b
-#define TRAPA_INSTR		0xc300
-
-#define SSTEP_INSTR		0xc3ff
-
-#define T_BIT_MASK		0x0001
-/*
- * BUFMAX defines the maximum number of characters in inbound/outbound
- * buffers at least NUMREGBYTES*2 are needed for register packets
- */
-#define BUFMAX 1024
-
-/*
- * Number of bytes for registers
- */
-#define NUMREGBYTES 112		/* 92 */
-
-/*
- * typedef
- */
-typedef void (*Function) ();
-
-/*
- * Forward declarations
- */
-
-static int hex (char);
-static char *mem2hex (char *, char *, int);
-static char *hex2mem (char *, char *, int);
-static int hexToInt (char **, int *);
-static void getpacket (char *);
-static void putpacket (char *);
-static void handle_buserror (void);
-static int computeSignal (int exceptionVector);
-static void handle_exception (int exceptionVector);
-void init_serial();
-
-
-int putDebugChar (char);
-char getDebugChar (void);
-
-/* These are in the file but in asm statements so the compiler can't see them */
-void catch_exception_4 (void);
-void catch_exception_6 (void);
-void catch_exception_9 (void);
-void catch_exception_10 (void);
-void catch_exception_11 (void);
-void catch_exception_32 (void);
-void catch_exception_33 (void);
-void catch_exception_255 (void);
-
-
-
-#define catch_exception_random catch_exception_255 /* Treat all odd ones like 255 */
-
-void breakpoint (void);
-
-
-#define init_stack_size 8*1024  /* if you change this you should also modify BINIT */
-#define stub_stack_size 8*1024
-
-int init_stack[init_stack_size] __attribute__ ((section ("stack"))) = {0};
-int stub_stack[stub_stack_size] __attribute__ ((section ("stack"))) = {0};
-
-typedef struct
-  {
-    void (*func_cold) ();
-    int *stack_cold;
-    void (*func_warm) ();
-    int *stack_warm;
-    void (*(handler[256 - 4])) ();
-  }
-vec_type;
-
-
-void INIT ();
-void BINIT ();
-
-/* When you link take care that this is at address 0 -
-   or wherever your vbr points */
-
-#define CPU_BUS_ERROR_VEC  9
-#define DMA_BUS_ERROR_VEC 10
-#define NMI_VEC           11
-#define INVALID_INSN_VEC   4
-#define INVALID_SLOT_VEC   6
-#define TRAP_VEC          32
-#define IO_VEC            33
-#define USER_VEC         255
-
-
-#define BCR  (*(volatile short *)(0x05FFFFA0)) /* Bus control register */
-#define BAS  (0x800)				/* Byte access select */
-#define WCR1 (*(volatile short *)(0x05ffffA2)) /* Wait state control register */
-
-const vec_type vectable =
-{ 
-  &BINIT,			/* 0: Power-on reset PC */
-  init_stack + init_stack_size, /* 1: Power-on reset SP */
-  &BINIT,			/* 2: Manual reset PC */
-  init_stack + init_stack_size, /* 3: Manual reset SP */
-{
-  &catch_exception_4,		/* 4: General invalid instruction */
-  &catch_exception_random,	/* 5: Reserved for system */
-  &catch_exception_6,		/* 6: Invalid slot instruction */
-  &catch_exception_random,	/* 7: Reserved for system */
-  &catch_exception_random,	/* 8: Reserved for system */
-  &catch_exception_9,		/* 9: CPU bus error */
-  &catch_exception_10,		/* 10: DMA bus error */
-  &catch_exception_11,		/* 11: NMI */
-  &catch_exception_random,	/* 12: User break */
-  &catch_exception_random,	/* 13: Reserved for system */
-  &catch_exception_random,	/* 14: Reserved for system */
-  &catch_exception_random,	/* 15: Reserved for system */
-  &catch_exception_random,	/* 16: Reserved for system */
-  &catch_exception_random,	/* 17: Reserved for system */
-  &catch_exception_random,	/* 18: Reserved for system */
-  &catch_exception_random,	/* 19: Reserved for system */
-  &catch_exception_random,	/* 20: Reserved for system */
-  &catch_exception_random,	/* 21: Reserved for system */
-  &catch_exception_random,	/* 22: Reserved for system */
-  &catch_exception_random,	/* 23: Reserved for system */
-  &catch_exception_random,	/* 24: Reserved for system */
-  &catch_exception_random,	/* 25: Reserved for system */
-  &catch_exception_random,	/* 26: Reserved for system */
-  &catch_exception_random,	/* 27: Reserved for system */
-  &catch_exception_random,	/* 28: Reserved for system */
-  &catch_exception_random,	/* 29: Reserved for system */
-  &catch_exception_random,	/* 30: Reserved for system */
-  &catch_exception_random,	/* 31: Reserved for system */
-  &catch_exception_32,		/* 32: Trap instr (user vectors) */
-  &catch_exception_33,		/* 33: Trap instr (user vectors) */
-  &catch_exception_random,	/* 34: Trap instr (user vectors) */
-  &catch_exception_random,	/* 35: Trap instr (user vectors) */
-  &catch_exception_random,	/* 36: Trap instr (user vectors) */
-  &catch_exception_random,	/* 37: Trap instr (user vectors) */
-  &catch_exception_random,	/* 38: Trap instr (user vectors) */
-  &catch_exception_random,	/* 39: Trap instr (user vectors) */
-  &catch_exception_random,	/* 40: Trap instr (user vectors) */
-  &catch_exception_random,	/* 41: Trap instr (user vectors) */
-  &catch_exception_random,	/* 42: Trap instr (user vectors) */
-  &catch_exception_random,	/* 43: Trap instr (user vectors) */
-  &catch_exception_random,	/* 44: Trap instr (user vectors) */
-  &catch_exception_random,	/* 45: Trap instr (user vectors) */
-  &catch_exception_random,	/* 46: Trap instr (user vectors) */
-  &catch_exception_random,	/* 47: Trap instr (user vectors) */
-  &catch_exception_random,	/* 48: Trap instr (user vectors) */
-  &catch_exception_random,	/* 49: Trap instr (user vectors) */
-  &catch_exception_random,	/* 50: Trap instr (user vectors) */
-  &catch_exception_random,	/* 51: Trap instr (user vectors) */
-  &catch_exception_random,	/* 52: Trap instr (user vectors) */
-  &catch_exception_random,	/* 53: Trap instr (user vectors) */
-  &catch_exception_random,	/* 54: Trap instr (user vectors) */
-  &catch_exception_random,	/* 55: Trap instr (user vectors) */
-  &catch_exception_random,	/* 56: Trap instr (user vectors) */
-  &catch_exception_random,	/* 57: Trap instr (user vectors) */
-  &catch_exception_random,	/* 58: Trap instr (user vectors) */
-  &catch_exception_random,	/* 59: Trap instr (user vectors) */
-  &catch_exception_random,	/* 60: Trap instr (user vectors) */
-  &catch_exception_random,	/* 61: Trap instr (user vectors) */
-  &catch_exception_random,	/* 62: Trap instr (user vectors) */
-  &catch_exception_random,	/* 63: Trap instr (user vectors) */
-  &catch_exception_random,	/* 64: IRQ0 */
-  &catch_exception_random,	/* 65: IRQ1 */
-  &catch_exception_random,	/* 66: IRQ2 */
-  &catch_exception_random,	/* 67: IRQ3 */
-  &catch_exception_random,	/* 68: IRQ4 */
-  &catch_exception_random,	/* 69: IRQ5 */
-  &catch_exception_random,	/* 70: IRQ6 */
-  &catch_exception_random,	/* 71: IRQ7 */
-  &catch_exception_random,
-  &catch_exception_random,
-  &catch_exception_random,
-  &catch_exception_random,
-  &catch_exception_random,
-  &catch_exception_random,
-  &catch_exception_random,
-  &catch_exception_random,
-  &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_random,
-     &catch_exception_255}};
-
-
-char in_nmi;   /* Set when handling an NMI, so we don't reenter */
-int dofault;  /* Non zero, bus errors will raise exception */
-
-int *stub_sp;
-
-/* debug > 0 prints ill-formed commands in valid packets & checksum errors */
-int remote_debug;
-
-/* jump buffer used for setjmp/longjmp */
-jmp_buf remcomEnv;
-
-enum regnames
-  {
-    R0, R1, R2, R3, R4, R5, R6, R7,
-    R8, R9, R10, R11, R12, R13, R14,
-    R15, PC, PR, GBR, VBR, MACH, MACL, SR,
-    TICKS, STALLS, CYCLES, INSTS, PLR
-  };
-
-typedef struct
-  {
-    short *memAddr;
-    short oldInstr;
-  }
-stepData;
-
-int registers[NUMREGBYTES / 4];
-stepData instrBuffer;
-char stepped;
-static const char hexchars[] = "0123456789abcdef";
-char remcomInBuffer[BUFMAX];
-char remcomOutBuffer[BUFMAX];
-
-char highhex(int  x)
-{
-  return hexchars[(x >> 4) & 0xf];
-}
-
-char lowhex(int  x)
-{
-  return hexchars[x & 0xf];
-}
-
-/*
- * Assembly macros
- */
-
-#define BREAKPOINT()   asm("trapa	#0x20"::);
-
-
-/*
- * Routines to handle hex data
- */
-
-static int
-hex (char ch)
-{
-  if ((ch >= 'a') && (ch <= 'f'))
-    return (ch - 'a' + 10);
-  if ((ch >= '0') && (ch <= '9'))
-    return (ch - '0');
-  if ((ch >= 'A') && (ch <= 'F'))
-    return (ch - 'A' + 10);
-  return (-1);
-}
-
-/* convert the memory, pointed to by mem into hex, placing result in buf */
-/* return a pointer to the last char put in buf (null) */
-static char *
-mem2hex (char *mem, char *buf, int count)
-{
-  int i;
-  int ch;
-  for (i = 0; i < count; i++)
-    {
-      ch = *mem++;
-      *buf++ = highhex (ch);
-      *buf++ = lowhex (ch);
-    }
-  *buf = 0;
-  return (buf);
-}
-
-/* convert the hex array pointed to by buf into binary, to be placed in mem */
-/* return a pointer to the character after the last byte written */
-
-static char *
-hex2mem (char *buf, char *mem, int count)
-{
-  int i;
-  unsigned char ch;
-  for (i = 0; i < count; i++)
-    {
-      ch = hex (*buf++) << 4;
-      ch = ch + hex (*buf++);
-      *mem++ = ch;
-    }
-  return (mem);
-}
-
-/**********************************************/
-/* WHILE WE FIND NICE HEX CHARS, BUILD AN INT */
-/* RETURN NUMBER OF CHARS PROCESSED           */
-/**********************************************/
-static int
-hexToInt (char **ptr, int *intValue)
-{
-  int numChars = 0;
-  int hexValue;
-
-  *intValue = 0;
-
-  while (**ptr)
-    {
-      hexValue = hex (**ptr);
-      if (hexValue >= 0)
-	{
-	  *intValue = (*intValue << 4) | hexValue;
-	  numChars++;
-	}
-      else
-	break;
-
-      (*ptr)++;
-    }
-
-  return (numChars);
-}
-
-/*
- * Routines to get and put packets
- */
-
-/* scan for the sequence $<data>#<checksum>     */
-
-static
-void
-getpacket (char *buffer)
-{
-  unsigned char checksum;
-  unsigned char xmitcsum;
-  int i;
-  int count;
-  char ch;
-  do
-    {
-      /* wait around for the start character, ignore all other characters */
-      while ((ch = getDebugChar ()) != '$');
-      checksum = 0;
-      xmitcsum = -1;
-
-      count = 0;
-
-      /* now, read until a # or end of buffer is found */
-      while (count < BUFMAX)
-	{
-	  ch = getDebugChar ();
-	  if (ch == '#')
-	    break;
-	  checksum = checksum + ch;
-	  buffer[count] = ch;
-	  count = count + 1;
-	}
-      buffer[count] = 0;
-
-      if (ch == '#')
-	{
-	  xmitcsum = hex (getDebugChar ()) << 4;
-	  xmitcsum += hex (getDebugChar ());
-	  if (checksum != xmitcsum)
-	    putDebugChar ('-');	/* failed checksum */
-	  else
-	    {
-	      putDebugChar ('+');	/* successful transfer */
-	      /* if a sequence char is present, reply the sequence ID */
-	      if (buffer[2] == ':')
-		{
-		  putDebugChar (buffer[0]);
-		  putDebugChar (buffer[1]);
-		  /* remove sequence chars from buffer */
-		  count = strlen (buffer);
-		  for (i = 3; i <= count; i++)
-		    buffer[i - 3] = buffer[i];
-		}
-	    }
-	}
-    }
-  while (checksum != xmitcsum);
-
-}
-
-
-/* send the packet in buffer.  The host get's one chance to read it.
-   This routine does not wait for a positive acknowledge.  */
-
-static void
-putpacket (register char *buffer)
-{
-  register  int checksum;
-  register  int count;
-
-  /*  $<packet info>#<checksum>. */
-  do
-    {
-      char *src = buffer;
-      putDebugChar ('$');
-      checksum = 0;
-
-      while (*src)
-	{
-	  int runlen;
-
-	  /* Do run length encoding */
-	  for (runlen = 0; runlen < 100; runlen ++) 
-	    {
-	      if (src[0] != src[runlen]) 
-		{
-		  if (runlen > 3) 
-		    {
-		      int encode;
-		      /* Got a useful amount */
-		      putDebugChar (*src);
-		      checksum += *src;
-		      putDebugChar ('*');
-		      checksum += '*';
-		      checksum += (encode = runlen + ' ' - 4);
-		      putDebugChar (encode);
-		      src += runlen;
-		    }
-		  else
-		    {
-		      putDebugChar (*src);
-		      checksum += *src;
-		      src++;
-		    }
-		  break;
-		}
-	    }
-	}
-
-
-      putDebugChar ('#');
-      putDebugChar (highhex(checksum));
-      putDebugChar (lowhex(checksum));
-    }
-  while  (getDebugChar() != '+');
-
-}
-
-
-/* a bus error has occurred, perform a longjmp
-   to return execution and allow handling of the error */
-
-void
-handle_buserror (void)
-{
-  longjmp (remcomEnv, 1);
-}
-
-/*
- * this function takes the SH-1 exception number and attempts to
- * translate this number into a unix compatible signal value
- */
-static int
-computeSignal (int exceptionVector)
-{
-  int sigval;
-  switch (exceptionVector)
-    {
-    case INVALID_INSN_VEC:
-      sigval = 4;
-      break;			
-    case INVALID_SLOT_VEC:
-      sigval = 4;
-      break;			
-    case CPU_BUS_ERROR_VEC:
-      sigval = 10;
-      break;			
-    case DMA_BUS_ERROR_VEC:
-      sigval = 10;
-      break;	
-    case NMI_VEC:
-      sigval = 2;
-      break;	
-
-    case TRAP_VEC:
-    case USER_VEC:
-      sigval = 5;
-      break;
-
-    default:
-      sigval = 7;		/* "software generated"*/
-      break;
-    }
-  return (sigval);
-}
-
-void
-doSStep (void)
-{
-  short *instrMem;
-  int displacement;
-  int reg;
-  unsigned short opcode;
-
-  instrMem = (short *) registers[PC];
-
-  opcode = *instrMem;
-  stepped = 1;
-
-  if ((opcode & COND_BR_MASK) == BT_INSTR)
-    {
-      if (registers[SR] & T_BIT_MASK)
-	{
-	  displacement = (opcode & COND_DISP) << 1;
-	  if (displacement & 0x80)
-	    displacement |= 0xffffff00;
-	  /*
-		   * Remember PC points to second instr.
-		   * after PC of branch ... so add 4
-		   */
-	  instrMem = (short *) (registers[PC] + displacement + 4);
-	}
-      else
-	instrMem += 1;
-    }
-  else if ((opcode & COND_BR_MASK) == BF_INSTR)
-    {
-      if (registers[SR] & T_BIT_MASK)
-	instrMem += 1;
-      else
-	{
-	  displacement = (opcode & COND_DISP) << 1;
-	  if (displacement & 0x80)
-	    displacement |= 0xffffff00;
-	  /*
-		   * Remember PC points to second instr.
-		   * after PC of branch ... so add 4
-		   */
-	  instrMem = (short *) (registers[PC] + displacement + 4);
-	}
-    }
-  else if ((opcode & UCOND_DBR_MASK) == BRA_INSTR)
-    {
-      displacement = (opcode & UCOND_DISP) << 1;
-      if (displacement & 0x0800)
-	displacement |= 0xfffff000;
-
-      /*
-	   * Remember PC points to second instr.
-	   * after PC of branch ... so add 4
-	   */
-      instrMem = (short *) (registers[PC] + displacement + 4);
-    }
-  else if ((opcode & UCOND_RBR_MASK) == JSR_INSTR)
-    {
-      reg = (char) ((opcode & UCOND_REG) >> 8);
-
-      instrMem = (short *) registers[reg];
-    }
-  else if (opcode == RTS_INSTR)
-    instrMem = (short *) registers[PR];
-  else if (opcode == RTE_INSTR)
-    instrMem = (short *) registers[15];
-  else if ((opcode & TRAPA_MASK) == TRAPA_INSTR)
-    instrMem = (short *) ((opcode & ~TRAPA_MASK) << 2);
-  else
-    instrMem += 1;
-
-  instrBuffer.memAddr = instrMem;
-  instrBuffer.oldInstr = *instrMem;
-  *instrMem = SSTEP_INSTR;
-}
-
-void
-undoSStep (void)
-{
-  /*
-    If we single stepped,
- restore the old instruction!
-*/
-  if (stepped)
-    {  short *instrMem;
-      instrMem = instrBuffer.memAddr;
-      *instrMem = instrBuffer.oldInstr;
-    }
-  stepped = 0;
-}
-
-/*
-This function does all exception handling.  It only does two things -
-it figures out why it was called and tells gdb, and then it reacts
-to gdb's requests.
-
-When in the monitor mode we talk a human on the serial line rather than gdb.
-
-*/
-
-
-void
-gdb_handle_exception (int exceptionVector)
-{
-  int sigval;
-  int addr, length;
-  char *ptr;
-
-  /* reply to host that an exception has occurred */
-  sigval = computeSignal (exceptionVector);
-  remcomOutBuffer[0] = 'S';
-  remcomOutBuffer[1] = highhex(sigval);
-  remcomOutBuffer[2] = lowhex (sigval);
-  remcomOutBuffer[3] = 0;
-
-  putpacket (remcomOutBuffer);
-
-  /*
-   * exception 255 indicates a software trap
-   * inserted in place of code ... so back up
-   * PC by one instruction, since this instruction
-   * will later be replaced by its original one!
-   */
-  if (exceptionVector == 0xff
-      || exceptionVector == 0x20)
-    registers[PC] -= 2;
-
-  /*
-   * Do the thangs needed to undo
-   * any stepping we may have done!
-   */
-  undoSStep ();
-
-  while (1)
-    {
-      remcomOutBuffer[0] = 0;
-      getpacket (remcomInBuffer);
-
-      switch (remcomInBuffer[0])
-	{
-	case '?':
-	  remcomOutBuffer[0] = 'S';
-	  remcomOutBuffer[1] = highhex (sigval);
-	  remcomOutBuffer[2] = lowhex (sigval);
-	  remcomOutBuffer[3] = 0;
-	  break;
-	case 'd':
-	  remote_debug = !(remote_debug);	/* toggle debug flag */
-	  break;
-	case 'g':		/* return the value of the CPU registers */
-	  mem2hex ((char *) registers, remcomOutBuffer, NUMREGBYTES);
-	  break;
-	case 'G':		/* set the value of the CPU registers - return OK */
-	  hex2mem (&remcomInBuffer[1], (char *) registers, NUMREGBYTES);
-	  strcpy (remcomOutBuffer, "OK");
-	  break;
-
-	  /* mAA..AA,LLLL  Read LLLL bytes at address AA..AA */
-	case 'm':
-	  if (setjmp (remcomEnv) == 0)
-	    {
-	      dofault = 0;
-	      /* TRY, TO READ %x,%x.  IF SUCCEED, SET PTR = 0 */
-	      ptr = &remcomInBuffer[1];
-	      if (hexToInt (&ptr, &addr))
-		if (*(ptr++) == ',')
-		  if (hexToInt (&ptr, &length))
-		    {
-		      ptr = 0;
-		      mem2hex ((char *) addr, remcomOutBuffer, length);
-		    }
-	      if (ptr)
-		strcpy (remcomOutBuffer, "E01");
-	    }
-	  else
-	    strcpy (remcomOutBuffer, "E03");
-
-	  /* restore handler for bus error */
-	  dofault = 1;
-	  break;
-
-	  /* MAA..AA,LLLL: Write LLLL bytes at address AA.AA return OK */
-	case 'M':
-	  if (setjmp (remcomEnv) == 0)
-	    {
-	      dofault = 0;
-
-	      /* TRY, TO READ '%x,%x:'.  IF SUCCEED, SET PTR = 0 */
-	      ptr = &remcomInBuffer[1];
-	      if (hexToInt (&ptr, &addr))
-		if (*(ptr++) == ',')
-		  if (hexToInt (&ptr, &length))
-		    if (*(ptr++) == ':')
-		      {
-			hex2mem (ptr, (char *) addr, length);
-			ptr = 0;
-			strcpy (remcomOutBuffer, "OK");
-		      }
-	      if (ptr)
-		strcpy (remcomOutBuffer, "E02");
-	    }
-	  else
-	    strcpy (remcomOutBuffer, "E03");
-
-	  /* restore handler for bus error */
-	  dofault = 1;
-	  break;
-
-	  /* cAA..AA    Continue at address AA..AA(optional) */
-	  /* sAA..AA   Step one instruction from AA..AA(optional) */
-	case 'c':
-	case 's':
-	  {
-	    /* tRY, to read optional parameter, pc unchanged if no parm */
-	    ptr = &remcomInBuffer[1];
-	    if (hexToInt (&ptr, &addr))
-	      registers[PC] = addr;
-
-	    if (remcomInBuffer[0] == 's')
-	      doSStep ();
-	  }
-	  return;
-	  break;
-
-	  /* kill the program */
-	case 'k':		/* do nothing */
-	  break;
-	}			/* switch */
-
-      /* reply to the request */
-      putpacket (remcomOutBuffer);
-    }
-}
-
-
-#define GDBCOOKIE 0x5ac 
-static int ingdbmode;
-/* We've had an exception - choose to go into the monitor or
-   the gdb stub */
-void handle_exception(int exceptionVector)
-{
-#ifdef MONITOR
-    if (ingdbmode != GDBCOOKIE)
-      monitor_handle_exception (exceptionVector);
-    else 
-#endif
-      gdb_handle_exception (exceptionVector);
-
-}
-
-void
-gdb_mode()
-{
-  ingdbmode = GDBCOOKIE;
-  breakpoint();
-}
-/* This function will generate a breakpoint exception.  It is used at the
-   beginning of a program to sync up with a debugger and can be used
-   otherwise as a quick means to stop program execution and "break" into
-   the debugger. */
-
-void
-breakpoint (void)
-{
-      BREAKPOINT ();
-}
-
-asm ("_BINIT: mov.l  L1,r15");
-asm ("bra _INIT");
-asm ("nop");
-asm ("L1: .long _init_stack + 8*1024*4");
-void
-INIT (void)
-{
-  /* First turn on the ram */
-  WCR1  = 0;    /* Never sample wait */
-  BCR = BAS;    /* use lowbyte/high byte */
-
-  init_serial();
-
-#ifdef MONITOR
-  reset_hook ();
-#endif
-
-
-  in_nmi = 0;
-  dofault = 1;
-  stepped = 0;
-
-  stub_sp = stub_stack + stub_stack_size;
-  breakpoint ();
-
-  while (1)
-    ;
-}
-
-
-static void sr()
-{
-
-
-  /* Calling Reset does the same as pressing the button */
-  asm (".global _Reset
-        .global _WarmReset
-_Reset:
-_WarmReset:
-         mov.l L_sp,r15
-         bra   _INIT
-         nop
-         .align 2
-L_sp:    .long _init_stack + 8000");
-
-  asm("saveRegisters:
-	mov.l	@(L_reg, pc), r0
-	mov.l	@r15+, r1				! pop R0
-	mov.l	r2, @(0x08, r0)				! save R2
-	mov.l	r1, @r0					! save R0
-	mov.l	@r15+, r1				! pop R1
-	mov.l	r3, @(0x0c, r0)				! save R3
-	mov.l	r1, @(0x04, r0)				! save R1
-	mov.l	r4, @(0x10, r0)				! save R4
-	mov.l	r5, @(0x14, r0)				! save R5
-	mov.l	r6, @(0x18, r0)				! save R6
-	mov.l	r7, @(0x1c, r0)				! save R7
-	mov.l	r8, @(0x20, r0)				! save R8
-	mov.l	r9, @(0x24, r0)				! save R9
-	mov.l	r10, @(0x28, r0)			! save R10
-	mov.l	r11, @(0x2c, r0)			! save R11
-	mov.l	r12, @(0x30, r0)			! save R12
-	mov.l	r13, @(0x34, r0)			! save R13
-	mov.l	r14, @(0x38, r0)			! save R14
-	mov.l	@r15+, r4				! save arg to handleException
-	add	#8, r15					! hide PC/SR values on stack
-	mov.l	r15, @(0x3c, r0)			! save R15
-	add	#-8, r15				! save still needs old SP value
-	add	#92, r0					! readjust register pointer
-	mov	r15, r2
-	add	#4, r2
-	mov.l	@r2, r2					! R2 has SR
-	mov.l	@r15, r1				! R1 has PC
-	mov.l	r2, @-r0				! save SR
-	sts.l	macl, @-r0				! save MACL
-	sts.l	mach, @-r0				! save MACH
-	stc.l	vbr, @-r0				! save VBR
-	stc.l	gbr, @-r0				! save GBR
-	sts.l	pr, @-r0				! save PR
-	mov.l	@(L_stubstack, pc), r2
-	mov.l	@(L_hdl_except, pc), r3
-	mov.l	@r2, r15
-	jsr	@r3
-	mov.l	r1, @-r0				! save PC
-	mov.l	@(L_stubstack, pc), r0
-	mov.l	@(L_reg, pc), r1
-	bra	restoreRegisters
-	mov.l	r15, @r0				! save __stub_stack
-	
-	.align 2
-L_reg:
-	.long	_registers
-L_stubstack:
-	.long	_stub_sp
-L_hdl_except:
-	.long	_handle_exception");
-
-}
-
-static void rr()
-{
-asm("
-	.align 2	
-        .global _resume
-_resume:
-	mov	r4,r1
-restoreRegisters:
-	add	#8, r1						! skip to R2
-	mov.l	@r1+, r2					! restore R2
-	mov.l	@r1+, r3					! restore R3
-	mov.l	@r1+, r4					! restore R4
-	mov.l	@r1+, r5					! restore R5
-	mov.l	@r1+, r6					! restore R6
-	mov.l	@r1+, r7					! restore R7
-	mov.l	@r1+, r8					! restore R8
-	mov.l	@r1+, r9					! restore R9
-	mov.l	@r1+, r10					! restore R10
-	mov.l	@r1+, r11					! restore R11
-	mov.l	@r1+, r12					! restore R12
-	mov.l	@r1+, r13					! restore R13
-	mov.l	@r1+, r14					! restore R14
-	mov.l	@r1+, r15					! restore programs stack
-	mov.l	@r1+, r0
-	add	#-8, r15					! uncover PC/SR on stack 
-	mov.l	r0, @r15					! restore PC onto stack
-	lds.l	@r1+, pr					! restore PR
-	ldc.l	@r1+, gbr					! restore GBR		
-	ldc.l	@r1+, vbr					! restore VBR
-	lds.l	@r1+, mach					! restore MACH
-	lds.l	@r1+, macl					! restore MACL
-	mov.l	@r1, r0	
-	add	#-88, r1					! readjust reg pointer to R1
-	mov.l	r0, @(4, r15)					! restore SR onto stack+4
-	mov.l	r2, @-r15
-	mov.l	L_in_nmi, r0
-	mov		#0, r2
-	mov.b	r2, @r0
-	mov.l	@r15+, r2
-	mov.l	@r1+, r0					! restore R0
-	rte
-	mov.l	@r1, r1						! restore R1
-
-");
-}
-
-
-static __inline__ void code_for_catch_exception(int n) 
-{
-  asm("		.globl	_catch_exception_%O0" : : "i" (n) 				); 
-  asm("	_catch_exception_%O0:" :: "i" (n)      						);
-
-  asm("		add	#-4, r15 				! reserve spot on stack ");
-  asm("		mov.l	r1, @-r15				! push R1		");
-
-  if (n == NMI_VEC) 
-    {
-      /* Special case for NMI - make sure that they don't nest */
-      asm("	mov.l	r0, @-r15					! push R0");
-      asm("	mov.l	L_in_nmi, r0");
-      asm("	tas.b	@r0						! Fend off against addtnl NMIs");
-      asm("	bt		noNMI");
-      asm("	mov.l	@r15+, r0");
-      asm("	mov.l	@r15+, r1");
-      asm("	add		#4, r15");
-      asm("	rte");
-      asm("	nop");
-      asm(".align 2");
-      asm("L_in_nmi: .long	_in_nmi");
-      asm("noNMI:");
-    }
-  else
-    {
-
-      if (n == CPU_BUS_ERROR_VEC)
-	{
-	  /* Exception 9 (bus errors) are disasbleable - so that you
-	     can probe memory and get zero instead of a fault.
-	     Because the vector table may be in ROM we don't revector
-	     the interrupt like all the other stubs, we check in here
-	     */
-	  asm("mov.l	L_dofault,r1");
-	  asm("mov.l	@r1,r1");
-	  asm("tst	r1,r1");
-	  asm("bf	faultaway");
-	  asm("bsr	_handle_buserror");
-	  asm(".align	2");
-	  asm("L_dofault: .long _dofault");
-	  asm("faultaway:");
-	}
-      asm("		mov	#15<<4, r1							");
-      asm("		ldc	r1, sr					! disable interrupts	");
-      asm("		mov.l	r0, @-r15				! push R0		");
-    }
-
-  /* Prepare for saving context, we've already pushed r0 and r1, stick exception number
-     into the frame */
-  asm("		mov	r15, r0								");
-  asm("		add	#8, r0								");
-  asm("		mov	%0,r1" :: "i" (n)        					);
-  asm("		extu.b  r1,r1								");
-  asm("		bra	saveRegisters				! save register values	");
-  asm("		mov.l	r1, @r0					! save exception # 	");
-}
-
-
-static  void
-exceptions()
-{
-  code_for_catch_exception (CPU_BUS_ERROR_VEC);
-  code_for_catch_exception (DMA_BUS_ERROR_VEC);
-  code_for_catch_exception (INVALID_INSN_VEC);
-  code_for_catch_exception (INVALID_SLOT_VEC);
-  code_for_catch_exception (NMI_VEC);
-  code_for_catch_exception (TRAP_VEC);
-  code_for_catch_exception (USER_VEC);
-  code_for_catch_exception (IO_VEC);
-}
-
-
-
-
-
-
-/* Support for Serial I/O using on chip uart */
-
-#define SMR0 (*(volatile char *)(0x05FFFEC0)) /* Channel 0  serial mode register */
-#define BRR0 (*(volatile char *)(0x05FFFEC1)) /* Channel 0  bit rate register */
-#define SCR0 (*(volatile char *)(0x05FFFEC2)) /* Channel 0  serial control register */
-#define TDR0 (*(volatile char *)(0x05FFFEC3)) /* Channel 0  transmit data register */
-#define SSR0 (*(volatile char *)(0x05FFFEC4)) /* Channel 0  serial status register */
-#define RDR0 (*(volatile char *)(0x05FFFEC5)) /* Channel 0  receive data register */
-
-#define SMR1 (*(volatile char *)(0x05FFFEC8)) /* Channel 1  serial mode register */
-#define BRR1 (*(volatile char *)(0x05FFFEC9)) /* Channel 1  bit rate register */
-#define SCR1 (*(volatile char *)(0x05FFFECA)) /* Channel 1  serial control register */
-#define TDR1 (*(volatile char *)(0x05FFFECB)) /* Channel 1  transmit data register */
-#define SSR1 (*(volatile char *)(0x05FFFECC)) /* Channel 1  serial status register */
-#define RDR1 (*(volatile char *)(0x05FFFECD)) /* Channel 1  receive data register */
-
-/*
- * Serial mode register bits
- */
-
-#define SYNC_MODE 		0x80
-#define SEVEN_BIT_DATA 		0x40
-#define PARITY_ON		0x20
-#define ODD_PARITY		0x10
-#define STOP_BITS_2		0x08
-#define ENABLE_MULTIP		0x04
-#define PHI_64			0x03
-#define PHI_16			0x02
-#define PHI_4			0x01
-
-/*
- * Serial control register bits
- */
-#define SCI_TIE				0x80	/* Transmit interrupt enable */
-#define SCI_RIE				0x40	/* Receive interrupt enable */
-#define SCI_TE				0x20	/* Transmit enable */
-#define SCI_RE				0x10	/* Receive enable */
-#define SCI_MPIE			0x08	/* Multiprocessor interrupt enable */
-#define SCI_TEIE			0x04	/* Transmit end interrupt enable */
-#define SCI_CKE1			0x02	/* Clock enable 1 */
-#define SCI_CKE0			0x01	/* Clock enable 0 */
-
-/*
- * Serial status register bits
- */
-#define SCI_TDRE			0x80	/* Transmit data register empty */
-#define SCI_RDRF			0x40	/* Receive data register full */
-#define SCI_ORER			0x20	/* Overrun error */
-#define SCI_FER				0x10	/* Framing error */
-#define SCI_PER				0x08	/* Parity error */
-#define SCI_TEND			0x04	/* Transmit end */
-#define SCI_MPB				0x02	/* Multiprocessor bit */
-#define SCI_MPBT			0x01	/* Multiprocessor bit transfer */
-
-
-/*
- * Port B IO Register (PBIOR)
- */
-#define	PBIOR 		(*(volatile char *)(0x05FFFFC6))
-#define	PB15IOR 	0x8000
-#define	PB14IOR 	0x4000
-#define	PB13IOR 	0x2000
-#define	PB12IOR 	0x1000
-#define	PB11IOR 	0x0800
-#define	PB10IOR 	0x0400
-#define	PB9IOR 		0x0200
-#define	PB8IOR 		0x0100
-#define	PB7IOR 		0x0080
-#define	PB6IOR 		0x0040
-#define	PB5IOR 		0x0020
-#define	PB4IOR 		0x0010
-#define	PB3IOR 		0x0008
-#define	PB2IOR 		0x0004
-#define	PB1IOR 		0x0002
-#define	PB0IOR 		0x0001
-
-/*
- * Port B Control Register (PBCR1)
- */
-#define	PBCR1 		(*(volatile short *)(0x05FFFFCC))
-#define	PB15MD1 	0x8000
-#define	PB15MD0 	0x4000
-#define	PB14MD1 	0x2000
-#define	PB14MD0 	0x1000
-#define	PB13MD1 	0x0800
-#define	PB13MD0 	0x0400
-#define	PB12MD1 	0x0200
-#define	PB12MD0 	0x0100
-#define	PB11MD1 	0x0080
-#define	PB11MD0 	0x0040
-#define	PB10MD1 	0x0020
-#define	PB10MD0 	0x0010
-#define	PB9MD1 		0x0008
-#define	PB9MD0 		0x0004
-#define	PB8MD1 		0x0002
-#define	PB8MD0 		0x0001
-
-#define	PB15MD 		PB15MD1|PB14MD0
-#define	PB14MD 		PB14MD1|PB14MD0
-#define	PB13MD 		PB13MD1|PB13MD0
-#define	PB12MD 		PB12MD1|PB12MD0
-#define	PB11MD 		PB11MD1|PB11MD0
-#define	PB10MD 		PB10MD1|PB10MD0
-#define	PB9MD 		PB9MD1|PB9MD0
-#define	PB8MD 		PB8MD1|PB8MD0
-
-#define PB_TXD1 	PB11MD1
-#define PB_RXD1 	PB10MD1
-#define PB_TXD0 	PB9MD1
-#define PB_RXD0 	PB8MD1
-
-/*
- * Port B Control Register (PBCR2)
- */
-#define	PBCR2 	0x05FFFFCE
-#define	PB7MD1 	0x8000
-#define	PB7MD0 	0x4000
-#define	PB6MD1 	0x2000
-#define	PB6MD0 	0x1000
-#define	PB5MD1 	0x0800
-#define	PB5MD0 	0x0400
-#define	PB4MD1 	0x0200
-#define	PB4MD0 	0x0100
-#define	PB3MD1 	0x0080
-#define	PB3MD0 	0x0040
-#define	PB2MD1 	0x0020
-#define	PB2MD0 	0x0010
-#define	PB1MD1 	0x0008
-#define	PB1MD0 	0x0004
-#define	PB0MD1 	0x0002
-#define	PB0MD0 	0x0001
-	
-#define	PB7MD 	PB7MD1|PB7MD0
-#define	PB6MD 	PB6MD1|PB6MD0
-#define	PB5MD 	PB5MD1|PB5MD0
-#define	PB4MD 	PB4MD1|PB4MD0
-#define	PB3MD 	PB3MD1|PB3MD0
-#define	PB2MD 	PB2MD1|PB2MD0
-#define	PB1MD 	PB1MD1|PB1MD0
-#define	PB0MD 	PB0MD1|PB0MD0
-
-
-#ifdef MHZ
-#define BPS			32 * 9600 * MHZ / ( BAUD * 10)
-#else
-#define BPS			32	/* 9600 for 10 Mhz */
-#endif
-
-char getDebugChar (void);
-int putDebugChar (char);
-void handleError (char theSSR);
-
-void
-nop ()
-{
-
-}
-void 
-init_serial()
-{
-  int i;
-
-  /* Clear TE and RE in Channel 1's SCR   */
-  SCR1 &= ~(SCI_TE | SCI_RE);
-
-  /* Set communication to be async, 8-bit data, no parity, 1 stop bit and use internal clock */
-
-  SMR1 = 0;
-  BRR1 = BPS;
-
-  SCR1 &= ~(SCI_CKE1 | SCI_CKE0);
-
-  /* let the hardware settle */
-
-  for (i = 0; i < 1000; i++)
-    nop ();
-
-  /* Turn on in and out */
-  SCR1 |= SCI_RE | SCI_TE;
-
-  /* Set the PFC to make RXD1 (pin PB8) an input pin and TXD1 (pin PB9) an output pin */
-  PBCR1 &= ~(PB_TXD1 | PB_RXD1);
-  PBCR1 |= PB_TXD1 | PB_RXD1;
-}
-
-
-int
-getDebugCharReady (void)
-{
-  char mySSR;
-  mySSR = SSR1 & ( SCI_PER | SCI_FER | SCI_ORER );
-  if ( mySSR )
-    handleError ( mySSR );
-  return SSR1 & SCI_RDRF ;
-}
-
-char 
-getDebugChar (void)
-{
-  char ch;
-  char mySSR;
-
-  while ( ! getDebugCharReady())
-    ;
-
-  ch = RDR1;
-  SSR1 &= ~SCI_RDRF;
-
-  mySSR = SSR1 & (SCI_PER | SCI_FER | SCI_ORER);
-
-  if (mySSR)
-    handleError (mySSR);
-
-  return ch;
-}
-
-int 
-putDebugCharReady()
-{
-  return (SSR1 & SCI_TDRE);
-}
-
-int 
-putDebugChar (char ch)
-{
-  while (!putDebugCharReady())
-    ;
-
-  /*
-   * Write data into TDR and clear TDRE
-   */
-  TDR1 = ch;
-  SSR1 &= ~SCI_TDRE;
-  return 1;
-}
-
-void 
-handleError (char theSSR)
-{
-  SSR1 &= ~(SCI_ORER | SCI_PER | SCI_FER);
-}
-