1016 lines
33 KiB
Plaintext
1016 lines
33 KiB
Plaintext
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'******************************************************************************
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' C Function Library in Spin
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' Author: Dave Hein
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' Copyright (c) 2010
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' See end of file for terms of use.
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'******************************************************************************
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'******************************************************************************
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' Revison History
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' v1.0 - 4/2/2010 First official release
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'******************************************************************************
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{{
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This object provides some standard C library functions written in Spin.
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There are three main types of functions provided -- string manipulation,
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formatted I/O and memory allocation. C functions that use a variable
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number of arguments are supported in two ways. The first way uses
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unique function names for each number of arguments that is used, such
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as printf3 for a printf with three arguments. The second way uses an
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argument list, such as vprintf. The argument list consists of an array
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of longs that holds the values of the arguments.
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The start function must be called before using any of the serial I/O or
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memory allocation functions. It will setup a a serial port that transmits on
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pin 30 and receives on pin 31 at 57600 baud. It will also establish a stack
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space of 200 longs for the top object. The malloc heap begins immediately
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after the stack space, and extends to the end of the RAM.
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Serial I/O and stack space parameters can be specified by calling start1
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instead of start. The first four parameters of start1 are the same as those
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used in a call to the FullDuplexSerial start function. The fifth parameter,
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stacksize, defines the size in longs of the stack space.
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Additional serial ports can be created by calling the openserial routine.
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In additional to rxpin, txpin, mode and baudrate the receive and transmit
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buffer sizes are also specified. A file stream pointer is returned, which
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is used when calling fputc, fgetc and all of the other "f" routines.
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The functions puts, putchar and getchar use the str1, tx1 and rx1 methods
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of a modified FullDuplexSerial object. This object, cserial, allows for multiple
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serial ports through the use of a structer pointer called a handle. See
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cserial.spin for more information.
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clib uses a file stream pointer to access I/O devices, such as the serial port.
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The I/O routines that start with the letter "f" require a file stream pointer,
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which is normally named stream. To save space, this object does not support
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file I/O. clibsd.spin should be used if file I/O is needed.
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}}
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OBJ
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mem : "cmalloc"
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ser : "cserial"
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fstr : "cfloatstr"
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CON
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NEW_LINE = 10
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SEEK_SET = 0
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SEEK_CUR = 1
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SEEK_END = 2
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stream_serial = 1
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stream_fileio = 2
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stream_size = 8
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stream_type = 0
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stream_handle = 1
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DAT
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stdout long 0
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stdin long 0
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stdio long 0
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echoflag long 1
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linefeed long 0
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'******************************************************************************
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' Initialization Routines
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'******************************************************************************
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PUB start
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{{
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This routine sets a top object stack size of 200 longs followed by the malloc
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heap space. It initializes the standard I/O serial port to receive on P31 and
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transmit on P30 at 57,600 baud. The serial port mode flag is set to use a
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lock for multi-cog operation. It returns the stdio pointer if successful, or
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NULL if not.
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}}
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return start1(31, 30, %110000, 115200, 200)
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PUB start1(rxpin, txpin, mode, baudrate, stacksize)
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{{
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This routine calls the malloc initialization routine. The number of longs in
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the top object stack is set by the value of "stacksize". It also calls the
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openserial function to initialize the standard I/O serial port. It returns the
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stdio pointer if successful, or NULL if not.
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}}
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mem.mallocinit(stacksize)
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stdio := openserial(rxpin, txpin, mode, baudrate, 64, 64)
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stdin := malloc(stream_size)
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stdout := malloc(stream_size)
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memcpy(stdin, stdio, stream_size)
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memcpy(stdout, stdio, stream_size)
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return stdio
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PUB openserial(rxpin, txpin, mode, baudrate, rxsize, txsize) | stream, handle
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{{
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This routine allocates memory for a file info and serial port data structure.
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It calls the start1 function in the cserial object to create a serial port in
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the next available cog. It returns a pointer to the file info structure if
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successful, or a NULL value if not successful.
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}}
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stream := malloc(stream_size + ser#header_size + rxsize + txsize)
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ifnot stream
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return 0
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handle := stream + stream_size
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long[stream][stream_type] := stream_serial
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long[stream][stream_handle] := handle
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ifnot ser.start1(handle, rxpin, txpin, mode, baudrate, rxsize, txsize)
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free(stream)
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return 0
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return stream
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'******************************************************************************
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' String Routines
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'******************************************************************************
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PUB strcmp(str1, str2)
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{{
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This routine compares two strings and returns a value of zero if they are
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equal. If "str1" is greater than "str2" it will return a positive value, and
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if "str1" is less than "str2" it will return a positive value.
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}}
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if (strcomp(str1, str2))
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return 0
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repeat while (byte[str1] and byte[str1] == byte[str2])
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str1++
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str2++
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return byte[str1] - byte[str2]
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PUB strncmp(str1, str2, n)
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{{
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This routine compares the first "n" characters of two strings. It returns a
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value of zero if they are equal. If "str1" is greater than "str2" it will
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return a positive value, and if "str1" is less than "str2" it will return a
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negative value.
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}}
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if (n =< 0)
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return 0
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repeat while (--n and byte[str1] and byte[str1] == byte[str2])
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str1++
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str2++
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return byte[str1] - byte[str2]
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PUB memcpy(dest, src, n) | bitflag
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{{
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This routine copies "n" bytes from the memory location pointed to by "src" to
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the memory location pointed to by "dest". The copy is performed as either longs,
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words or bytes depending on the least significant bits of the parameters. A
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bytemove is performed if "n" is less than 180 to avoid the extra computational
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overhead for small mem copies. The value of "dest" is returned.
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}}
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if n < 180
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bytemove(dest, src, n)
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return dest
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bitflag := (dest | src | n) & 3
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ifnot bitflag
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longmove(dest, src, n >> 2)
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elseifnot bitflag & 1
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wordmove(dest, src, n >> 1)
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else
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bytemove(dest, src, n)
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return dest
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PUB memset(dest, val, n) | bitflag
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{{
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This routine sets the "n" bytes pointed to by "dest" to the value in the
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least significant byte of "val". It returns the value of "dest". memset
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uses either bytefill, wordfill or longfill depending on the least significant
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bits of the parameters. A bytefill is used when "n" is less than 220 to
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avoid the extra computational overhead for small buffers.
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}}
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if n < 220
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bytefill(dest, val, n)
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return dest
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val &= 255
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bitflag := (dest | n) & 3
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ifnot bitflag
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val |= (val << 24) | (val << 16) | (val << 8)
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longfill(dest, val, n >> 2)
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elseifnot bitflag & 1
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val |= (val << 8)
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wordfill(dest, val, n >> 1)
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else
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bytefill(dest, val, n)
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return dest
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PUB strcat(dst, src) | dlen, slen
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{{
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This routine concatenates the string pointed to by "src" to the string at
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"dst". It returns the value of "dst".
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}}
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dlen := strsize(dst)
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slen := strsize(src) + 1
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bytemove(dst + dlen, src, slen)
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return dst
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PUB strcpy(dst, src) | slen
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{{
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This routine copies the string pointed to by "src" to the location pointed
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to by "dst". It returns the value of "dst".
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}}
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slen := strsize(src) + 1
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bytemove(dst, src, slen)
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return dst
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PUB strncpy(dst, src, num) | slen
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{{
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This routine copies the first num bytes from the src string to the dst string.
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If src contains less than num bytes, then only the bytes contained in the src
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string are copied, and the remaining bytes are set to zero. Note that if num
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is less than or equal to the string length of src the dst string will not be
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terminated with a NULL. This routine returns the value of the dst pointer.
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}}
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if (num < 1)
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return dst
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slen := strsize(src)
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if (slen > num)
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slen := num
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bytemove(dst, src, slen)
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bytefill(dst + slen, 0, num - slen)
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return dst
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PUB isdigit(char)
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{{
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This routine return true if the value of "char" represents an ASCII decimal
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digit between 0 and 9. Otherwise, it returns false.
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}}
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return char => "0" and char =< "9"
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PUB itoa(number, str, base) | mask, shift, nbits, str0
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{{
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This routine converts the 32-bit value in "number" to an ASCII string at the
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location pointed to by "str". The numeric base is determined by the value
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of "base", and must be either 2, 4, 8, 10 or 16. Leading zeros are suppressed,
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and the number is treated as unsigned except when the base is 10. The length
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of the resulting string is returned.
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}}
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str0 := str
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case base
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10 : return itoa10(number, str)
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2 : nbits := 1
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4 : nbits := 2
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8 : nbits := 3
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16 : nbits := 4
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other:
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byte[str] := 0
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return 0
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mask := base - 1
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if (nbits == 3)
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shift := 30
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else
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shift := 32 - nbits
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repeat while shift > 0 and ((number >> shift) & mask) == 0
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shift -= nbits
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repeat while (shift => 0)
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byte[str++] := HexDigit[(number >> shift) & mask]
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shift -= nbits
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byte[str++] := 0
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return str - str0 - 1
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'******************************************************************************
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' Output Routines
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'******************************************************************************
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PUB set_linefeed(val)
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linefeed := val
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PUB putnewline(handle)
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ser.tx1(handle, 13)
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if linefeed
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ser.tx1(handle, 10)
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PUB puts(str)
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{{
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This routine sends the contents of the string pointed to by "str" to the
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standard output.
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}}
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fputs(str, stdout)
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putnewline(stdout)
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PUB putchar(char)
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{{
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This routine sends the character in "char" to the standard output.
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}}
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fputc(char, stdout)
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PUB fputc(char, stream) | type, handle
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{{
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This routine sends the character in "char" to the output device defined by
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"stream".
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}}
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type := long[stream][stream_type]
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handle := long[stream][stream_handle]
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if (type == stream_serial)
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if char == NEW_LINE
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putnewline(handle)
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else
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ser.tx1(handle, char)
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PUB fputs(str, stream) | type, handle, len, char
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{{
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This routine sens the string pointed to by "str" to the output device defined
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by "stream".
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}}
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type := long[stream][stream_type]
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handle := long[stream][stream_handle]
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if (type == stream_serial)
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'ser.str1(handle, str)
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repeat while (char := byte[str++])
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if char == NEW_LINE
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putnewline(handle)
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else
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ser.tx1(handle, char)
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PUB fwrite(buffer, elem_size, num, stream) | type, handle, char
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{{
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This routine writes a block of data to the output device defined by "stream".
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It returns the number of bytes written, or a -1 if there is an error.
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}}
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type := long[stream][stream_type]
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handle := long[stream][stream_handle]
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if (type == stream_serial)
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num *= elem_size
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repeat num
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char := byte[buffer++]
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if char == NEW_LINE
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putnewline(handle)
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else
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ser.tx1(handle, char)
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return num
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PUB printf0(fmtstr)
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{{
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This is a version of "printf" with a format string and no additional parameters.
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}}
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vfprintf(stdout, fmtstr, @fmtstr)
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PUB printf1(fmtstr, arg1)
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{{
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This is a version of "printf" with a format string and one additional parameter.
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}}
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vfprintf(stdout, fmtstr, @arg1)
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PUB printf2(fmtstr, arg1, arg2)
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{{
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This is a version of "printf" with a format string and two additional parameters.
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}}
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vfprintf(stdout, fmtstr, @arg1)
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PUB printf3(fmtstr, arg1, arg2, arg3)
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{{
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This is a version of "printf" with a format string and three additional parameters.
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}}
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vfprintf(stdout, fmtstr, @arg1)
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PUB printf4(fmtstr, arg1, arg2, arg3, arg4)
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{{
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This is a version of "printf" with a format string and four additional parameters.
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}}
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vfprintf(stdout, fmtstr, @arg1)
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PUB printf5(fmtstr, arg1, arg2, arg3, arg4, arg5)
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{{
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This is a version of "printf" with a format string and five additional parameters.
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}}
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vfprintf(stdout, fmtstr, @arg1)
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PUB printf6(fmtstr, arg1, arg2, arg3, arg4, arg5, arg6)
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{{
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This is a version of "printf" with a format string and six additional parameters.
|
||
|
|
}}
|
||
|
|
vfprintf(stdout, fmtstr, @arg1)
|
||
|
|
|
||
|
|
PUB printf7(fmtstr, arg1, arg2, arg3, arg4, arg5, arg6, arg7)
|
||
|
|
{{
|
||
|
|
This is a version of "printf" with a format string and six additional parameters.
|
||
|
|
}}
|
||
|
|
vfprintf(stdout, fmtstr, @arg1)
|
||
|
|
|
||
|
|
PUB vprintf(fmtstr, arglist)
|
||
|
|
{{
|
||
|
|
This routine uses the string pointed to by "format" to send a formatted string
|
||
|
|
to the standard output. The parameter "arglist" points to a long array of
|
||
|
|
values that are merged with the output string dependent on the contents of the
|
||
|
|
format string.
|
||
|
|
}}
|
||
|
|
vfprintf(stdout, fmtstr, arglist)
|
||
|
|
|
||
|
|
PUB sprintf0(str, fmtstr)
|
||
|
|
{{
|
||
|
|
This is a version of "sprintf" with a format string and no additional parameters.
|
||
|
|
}}
|
||
|
|
vsprintf(str, fmtstr, @fmtstr)
|
||
|
|
|
||
|
|
PUB sprintf1(str, fmtstr, arg1)
|
||
|
|
{{
|
||
|
|
This is a version of "sprintf" with a format string and one additional parameter.
|
||
|
|
}}
|
||
|
|
vsprintf(str, fmtstr, @arg1)
|
||
|
|
|
||
|
|
PUB sprintf2(str, fmtstr, arg1, arg2)
|
||
|
|
{{
|
||
|
|
This is a version of "sprintf" with a format string and two additional parameters.
|
||
|
|
}}
|
||
|
|
vsprintf(str, fmtstr, @arg1)
|
||
|
|
|
||
|
|
PUB sprintf3(str, fmtstr, arg1, arg2, arg3)
|
||
|
|
{{
|
||
|
|
This is a version of "sprintf" with a format string and three additional parameters.
|
||
|
|
}}
|
||
|
|
vsprintf(str, fmtstr, @arg1)
|
||
|
|
|
||
|
|
PUB sprintf4(str, fmtstr, arg1, arg2, arg3, arg4)
|
||
|
|
{{
|
||
|
|
This is a version of "sprintf" with a format string and four additional parameters.
|
||
|
|
}}
|
||
|
|
vsprintf(str, fmtstr, @arg1)
|
||
|
|
|
||
|
|
PUB sprintf5(str, fmtstr, arg1, arg2, arg3, arg4, arg5)
|
||
|
|
{{
|
||
|
|
This is a version of "sprintf" with a format string and five additional parameters.
|
||
|
|
}}
|
||
|
|
vsprintf(str, fmtstr, @arg1)
|
||
|
|
|
||
|
|
PUB sprintf6(str, fmtstr, arg1, arg2, arg3, arg4, arg5, arg6)
|
||
|
|
{{
|
||
|
|
This is a version of "sprintf" with a format string and six additional parameters.
|
||
|
|
}}
|
||
|
|
vsprintf(str, fmtstr, @arg1)
|
||
|
|
|
||
|
|
PUB fprintf0(stream, fmtstr)
|
||
|
|
vfprintf(stream, fmtstr, @fmtstr)
|
||
|
|
|
||
|
|
PUB fprintf1(stream, fmtstr, arg1)
|
||
|
|
vfprintf(stream, fmtstr, @arg1)
|
||
|
|
|
||
|
|
PUB fprintf2(stream, fmtstr, arg1, arg2)
|
||
|
|
vfprintf(stream, fmtstr, @arg1)
|
||
|
|
|
||
|
|
PUB fprintf3(stream, fmtstr, arg1, arg2, arg3)
|
||
|
|
vfprintf(stream, fmtstr, @arg1)
|
||
|
|
|
||
|
|
PUB fprintf4(stream, fmtstr, arg1, arg2, arg3, arg4)
|
||
|
|
vfprintf(stream, fmtstr, @arg1)
|
||
|
|
|
||
|
|
PUB fprintf5(stream, fmtstr, arg1, arg2, arg3, arg4, arg5)
|
||
|
|
vfprintf(stream, fmtstr, @arg1)
|
||
|
|
|
||
|
|
PUB fprintf6(stream, fmtstr, arg1, arg2, arg3, arg4, arg5, arg6)
|
||
|
|
vfprintf(stream, fmtstr, @arg1)
|
||
|
|
|
||
|
|
PUB vfprintf(stream, fmtstr, arglist)| str[25]
|
||
|
|
{{
|
||
|
|
This routine prints a formatted string to the output pointed to by "stream".
|
||
|
|
It calls vsprintf to generate the formatted string in the stack string array
|
||
|
|
"str", and then sends it to the output stream by calling fputs. The format is
|
||
|
|
pointed to by "format" and the parameters are contained on a long array pointed
|
||
|
|
to by "arglist". Note, care must be taken to ensure that the formatted output
|
||
|
|
string will fit within the 100-byte space provided by "str". Also, the stack
|
||
|
|
must be large enough to accomodate "str".
|
||
|
|
}}
|
||
|
|
vsprintf(@str, fmtstr, arglist)
|
||
|
|
fputs(@str, stream)
|
||
|
|
|
||
|
|
PUB vsprintf(str, fmtstr, arglist) | arg, width, digits, fmtstr0
|
||
|
|
{{
|
||
|
|
This routines generates a formatted output string based on the string pointed
|
||
|
|
to by "format". The parameter "arglist" is a pointer to a long array of values
|
||
|
|
that are merged into the output string. The characters in the format string
|
||
|
|
are copied to the output string, exept for special character sequences that
|
||
|
|
start is % or \. The % character is used to merge values from "arglist". The
|
||
|
|
characters following the % are as follows: %[0][width][.digits][l][type].
|
||
|
|
If a "0" immediately follows the % it indicates that leading zeros should be
|
||
|
|
displayed. The optional "width" paramter specifieds the minimum width of the
|
||
|
|
field. The optional ".digits" parameter specifies the number of fractional
|
||
|
|
digits for floating point, or it may also be used to specify leading zeros and
|
||
|
|
the minimum width for integer values. The "l" parameter indicates long values,
|
||
|
|
and it is ignored in this implementation. The "type" parameter is a single
|
||
|
|
character that indicates the type of output that should be generated. It can
|
||
|
|
be one of the following characters:
|
||
|
|
|
||
|
|
d - signed decimal number
|
||
|
|
i - same as d
|
||
|
|
u - unsigned decimal number
|
||
|
|
x - hexidecimal number
|
||
|
|
o - octal number
|
||
|
|
b - binary number
|
||
|
|
c - character
|
||
|
|
s - string
|
||
|
|
e - floating-point number using scientific notation
|
||
|
|
f - floating-point number in standard notation
|
||
|
|
% - prints the % character
|
||
|
|
|
||
|
|
The \ character is used to print the following special characters:
|
||
|
|
|
||
|
|
b - backspace
|
||
|
|
n - newline or linefeed
|
||
|
|
r - carriage return
|
||
|
|
t - tab, or ASCII 9
|
||
|
|
\ - prints the \ character
|
||
|
|
xxx - this inserts the value of a 3-digital octal number between 000 and 377
|
||
|
|
|
||
|
|
Note, care must be taken the the generated output string does not exceed the size
|
||
|
|
of the string. A string size of 100 bytes is normally sufficient.
|
||
|
|
}}
|
||
|
|
arg := long[arglist]
|
||
|
|
arglist += 4
|
||
|
|
repeat while (byte[fmtstr])
|
||
|
|
if (byte[fmtstr] == "%")
|
||
|
|
fmtstr0 := fmtstr++
|
||
|
|
if (byte[fmtstr] == "0")
|
||
|
|
width := -1
|
||
|
|
digits := getvalue(@fmtstr)
|
||
|
|
else
|
||
|
|
width := getvalue(@fmtstr)
|
||
|
|
if (byte[fmtstr] == ".")
|
||
|
|
fmtstr++
|
||
|
|
digits := getvalue(@fmtstr)
|
||
|
|
else
|
||
|
|
digits := -1
|
||
|
|
if (byte[fmtstr] == "l")
|
||
|
|
fmtstr++
|
||
|
|
case byte[fmtstr]
|
||
|
|
"d", "i": str := putdec(str, arg, width, digits)
|
||
|
|
"u" : str := putudec(str, arg, width, digits)
|
||
|
|
"o" : str := putoctal(str, arg, width, digits)
|
||
|
|
"b" : str := putbinary(str, arg, width, digits)
|
||
|
|
"x" : str := puthex(str, arg, width, digits)
|
||
|
|
"f" : str := fstr.putfloatf(str, arg, width, digits)
|
||
|
|
"e" : str := fstr.putfloate(str, arg, width, digits)
|
||
|
|
"c" : byte[str++] := arg
|
||
|
|
"%" : byte[str++] := "%"
|
||
|
|
"s" :
|
||
|
|
strcpy(str, arg)
|
||
|
|
str += strsize(arg)
|
||
|
|
other :
|
||
|
|
byte[str++] := "%"
|
||
|
|
fmtstr := fmtstr0
|
||
|
|
fmtstr++
|
||
|
|
arg := long[arglist]
|
||
|
|
arglist += 4
|
||
|
|
elseif (byte[fmtstr] == 92)
|
||
|
|
case byte[++fmtstr]
|
||
|
|
0 : quit
|
||
|
|
"b" : byte[str++] := 8
|
||
|
|
"t" : byte[str++] := 9
|
||
|
|
"r" : byte[str++] := 13
|
||
|
|
"n" : byte[str++] := 10
|
||
|
|
"0".."3": byte[str++] := getoctalbyte(@fmtstr)
|
||
|
|
other : byte[str++] := byte[fmtstr]
|
||
|
|
fmtstr++
|
||
|
|
else
|
||
|
|
byte[str++] := byte[fmtstr++]
|
||
|
|
byte[str++] := 0
|
||
|
|
|
||
|
|
PRI getoctalbyte(pstr) | str
|
||
|
|
{{
|
||
|
|
This private routine is used to read a 3-digit octal number contained
|
||
|
|
in the format string.
|
||
|
|
}}
|
||
|
|
str := long[pstr]
|
||
|
|
repeat 3
|
||
|
|
if (byte[str] & $f8) == "0"
|
||
|
|
result := (result << 3) + (byte[str++] & 7)
|
||
|
|
else
|
||
|
|
quit
|
||
|
|
long[pstr] := str - 1
|
||
|
|
|
||
|
|
PRI itoa10(number, str) | str0, divisor, temp
|
||
|
|
{{
|
||
|
|
This private routine is used to convert a signed integer contained in
|
||
|
|
"number" to a decimal character string. It is called by itoa when the
|
||
|
|
numeric base parameter has a value of 10.
|
||
|
|
}}
|
||
|
|
str0 := str
|
||
|
|
if (number < 0)
|
||
|
|
byte[str++] := "-"
|
||
|
|
if (number == $80000000)
|
||
|
|
byte[str++] := "2"
|
||
|
|
number += 2_000_000_000
|
||
|
|
number := -number
|
||
|
|
elseif (number == 0)
|
||
|
|
byte[str++] := "0"
|
||
|
|
byte[str] := 0
|
||
|
|
return 1
|
||
|
|
divisor := 1_000_000_000
|
||
|
|
repeat while (divisor > number)
|
||
|
|
divisor /= 10
|
||
|
|
repeat while (divisor > 0)
|
||
|
|
temp := number / divisor
|
||
|
|
byte[str++] := temp + "0"
|
||
|
|
number -= temp * divisor
|
||
|
|
divisor /= 10
|
||
|
|
byte[str++] := 0
|
||
|
|
return str - str0 - 1
|
||
|
|
|
||
|
|
PRI getvalue(pstr) | str
|
||
|
|
{{
|
||
|
|
Thie private routine is used to extract the width and digits
|
||
|
|
fields from a format string. It is called by vsprintf.
|
||
|
|
}}
|
||
|
|
str := long[pstr]
|
||
|
|
ifnot isdigit(byte[str])
|
||
|
|
return -1
|
||
|
|
result := 0
|
||
|
|
repeat while isdigit(byte[str])
|
||
|
|
result := (result * 10) + byte[str++] - "0"
|
||
|
|
long[pstr] := str
|
||
|
|
|
||
|
|
DAT
|
||
|
|
HexDigit byte "0123456789abcdef"
|
||
|
|
|
||
|
|
PRI printpadded(str, numstr, count, width, digits)
|
||
|
|
{{
|
||
|
|
This private routine is used to generate a formatted string
|
||
|
|
containg at least "width" characters. The value of count
|
||
|
|
must be identical to the length of the string in "str".
|
||
|
|
Leading spaces will be generated if width is larger than the
|
||
|
|
maximum of count and digits. Leading zeros will be generated
|
||
|
|
if digits is greater than count.
|
||
|
|
}}
|
||
|
|
if digits < count
|
||
|
|
digits := count
|
||
|
|
repeat while (width-- > digits)
|
||
|
|
byte[str++] := " "
|
||
|
|
if byte[numstr] == "-"
|
||
|
|
byte[str++] := byte[numstr++]
|
||
|
|
digits--
|
||
|
|
repeat while (digits-- > count)
|
||
|
|
byte[str++] := "0"
|
||
|
|
strcpy(str, numstr)
|
||
|
|
return str + strsize(numstr)
|
||
|
|
|
||
|
|
PRI putbinary(str, number, width, digits) | count, numstr[9]
|
||
|
|
{{
|
||
|
|
This private routine converts a number to a string of binary digits.
|
||
|
|
printpadded is called to insert leading blanks and zeros.
|
||
|
|
}}
|
||
|
|
count := itoa(number, @numstr, 2)
|
||
|
|
return printpadded(str, @numstr, count, width, digits)
|
||
|
|
|
||
|
|
PRI putoctal(str, number, width, digits) | count, numstr[3]
|
||
|
|
{{
|
||
|
|
This private routine converts a number to a string of octal digits.
|
||
|
|
printpadded is called to insert leading blanks and zeros.
|
||
|
|
}}
|
||
|
|
count := itoa(number, @numstr, 8)
|
||
|
|
return printpadded(str, @numstr, count, width, digits)
|
||
|
|
|
||
|
|
PRI puthex(str, number, width, digits) | count, numstr[3]
|
||
|
|
{{
|
||
|
|
This private routine converts a number to a string of hexadecimal digits.
|
||
|
|
printpadded is called to insert leading blanks and zeros.
|
||
|
|
}}
|
||
|
|
count := itoa(number, @numstr, 16)
|
||
|
|
return printpadded(str, @numstr, count, width, digits)
|
||
|
|
|
||
|
|
PRI putdec(str, number, width, digits)| count, numstr[3]
|
||
|
|
{{
|
||
|
|
This private routine converts a signed number to a string of decimal
|
||
|
|
digits. printpadded is called to insert leading blanks and zeros.
|
||
|
|
}}
|
||
|
|
count := itoa10(number, @numstr)
|
||
|
|
return printpadded(str, @numstr, count, width, digits)
|
||
|
|
|
||
|
|
PRI putudec(str, number, width, digits) | count, numstr[3], adjust
|
||
|
|
{{
|
||
|
|
This private routine converts an unsigned number to a string of decimal
|
||
|
|
digits. printpadded is called to insert leading blanks and zeros.
|
||
|
|
}}
|
||
|
|
adjust := 0
|
||
|
|
repeat while (number < 0)
|
||
|
|
number -= 1_000_000_000
|
||
|
|
adjust++
|
||
|
|
count := itoa10(number, @numstr)
|
||
|
|
byte[@numstr] += adjust
|
||
|
|
return printpadded(str, @numstr, count, width, digits)
|
||
|
|
|
||
|
|
'******************************************************************************
|
||
|
|
' Input Routines
|
||
|
|
'******************************************************************************
|
||
|
|
PUB getchar
|
||
|
|
{{
|
||
|
|
This routine returns a single character from the standard input. It will not
|
||
|
|
return until a character has been received.
|
||
|
|
}}
|
||
|
|
return fgetc(stdin)
|
||
|
|
|
||
|
|
PUB gets(str) | last
|
||
|
|
{{
|
||
|
|
This routine returns a string from the standard input. It will not return until
|
||
|
|
is has received a carriage return. The carriage return is not included in the
|
||
|
|
returned string. Received characters are echoed back out ot the the serial port.
|
||
|
|
Backspaces will cause the previous character to be removed from the buffer, and
|
||
|
|
a character sequence of backspace, space and backspace will be transmitted to the
|
||
|
|
serial port to erase the previous character. Backspace characters are not inserted
|
||
|
|
into the string.
|
||
|
|
}}
|
||
|
|
result := fgets(str, 100000000, stdin)
|
||
|
|
if result > 0
|
||
|
|
last := strsize(str) - 1
|
||
|
|
if last => 0
|
||
|
|
str += last
|
||
|
|
if byte[str] == NEW_LINE
|
||
|
|
byte[str] := 0
|
||
|
|
|
||
|
|
PRI gets1(str, size, handle) | char, str0, editflag, echoflag1
|
||
|
|
editflag := (handle == long[stdio][stream_handle])
|
||
|
|
echoflag1 := editflag & echoflag
|
||
|
|
str0 := str
|
||
|
|
repeat while (size > 1)
|
||
|
|
char := ser.rx1(handle)
|
||
|
|
if (char == 8 AND editflag)
|
||
|
|
if (str > str0)
|
||
|
|
if echoflag1
|
||
|
|
ser.tx1(handle, 8)
|
||
|
|
ser.tx1(handle, " ")
|
||
|
|
ser.tx1(handle, 8)
|
||
|
|
str--
|
||
|
|
size++
|
||
|
|
next
|
||
|
|
if char == 4
|
||
|
|
if (str == str0)
|
||
|
|
str0 := 0
|
||
|
|
quit
|
||
|
|
if char == NEW_LINE OR char == 13
|
||
|
|
if echoflag1
|
||
|
|
putnewline(handle)
|
||
|
|
byte[str++] := NEW_LINE
|
||
|
|
quit
|
||
|
|
else
|
||
|
|
if echoflag1
|
||
|
|
ser.tx1(handle, char)
|
||
|
|
byte[str++] := char
|
||
|
|
size--
|
||
|
|
byte[str] := 0
|
||
|
|
return str0
|
||
|
|
|
||
|
|
PUB fgetc(stream) | char, type, handle
|
||
|
|
{{
|
||
|
|
This routine returns a single character from the input device defined by "stream".
|
||
|
|
It will not return until a character has been received.
|
||
|
|
}}
|
||
|
|
type := long[stream][stream_type]
|
||
|
|
handle := long[stream][stream_handle]
|
||
|
|
if (type == stream_serial)
|
||
|
|
result := ser.rx1(handle)
|
||
|
|
|
||
|
|
PUB fgets(str, size, stream) | type, handle
|
||
|
|
{{
|
||
|
|
This routine returns a string from the input device defined by "stream". It will
|
||
|
|
return until it has either received a carriage return or "size" number of characters.
|
||
|
|
}}
|
||
|
|
type := long[stream][stream_type]
|
||
|
|
handle := long[stream][stream_handle]
|
||
|
|
size--
|
||
|
|
if (type == stream_serial)
|
||
|
|
result := gets1(str, size, handle)
|
||
|
|
|
||
|
|
PUB fread(buffer, elem_size, num, stream) | type, handle
|
||
|
|
{{
|
||
|
|
This routine reads a block of data from the input device defined by "stream".
|
||
|
|
It returns the number of bytes read, or a -1 if the end of file is
|
||
|
|
encountered.
|
||
|
|
}}
|
||
|
|
type := long[stream][stream_type]
|
||
|
|
handle := long[stream][stream_handle]
|
||
|
|
if (type == stream_serial)
|
||
|
|
num *= elem_size
|
||
|
|
repeat num
|
||
|
|
byte[buffer++] := ser.rx1(handle)
|
||
|
|
return num
|
||
|
|
|
||
|
|
PUB scanf1(fmtstr, parg1)
|
||
|
|
{{
|
||
|
|
This routine is a version of "scanf" with a format string and one parameter.
|
||
|
|
}}
|
||
|
|
vscanf(fmtstr, @parg1)
|
||
|
|
|
||
|
|
PUB scanf2(fmtstr, parg1, parg2)
|
||
|
|
{{
|
||
|
|
This routine is a version of "scanf" with a format string and two parameters.
|
||
|
|
}}
|
||
|
|
vscanf(fmtstr, @parg1)
|
||
|
|
|
||
|
|
PUB scanf3(fmtstr, parg1, parg2, parg3)
|
||
|
|
{{
|
||
|
|
This routine is a version of "scanf" with a format string and three parameters.
|
||
|
|
}}
|
||
|
|
vscanf(fmtstr, @parg1)
|
||
|
|
|
||
|
|
PUB scanf4(fmtstr, parg1, parg2, parg3, parg4)
|
||
|
|
{{
|
||
|
|
This routine is a version of "scanf" with a format string and four parameters.
|
||
|
|
}}
|
||
|
|
vscanf(fmtstr, @parg1)
|
||
|
|
|
||
|
|
PUB vscanf(fmtstr, arglist) | str[25]
|
||
|
|
{{
|
||
|
|
This routine reads a string from the standard input using gets, and it converts
|
||
|
|
the data based on the format in the "format" string. The converted values are
|
||
|
|
stored at the locations determined by the list of long pointers in "arglist".
|
||
|
|
See vsscanf for the description of the format string.
|
||
|
|
}}
|
||
|
|
gets(@str)
|
||
|
|
vsscanf(@str, fmtstr, arglist)
|
||
|
|
|
||
|
|
PUB sscanf1(str, fmtstr, parg1)
|
||
|
|
{{
|
||
|
|
This is a version of sscanf with a format string and one parameter.
|
||
|
|
}}
|
||
|
|
vsscanf(str, fmtstr, @parg1)
|
||
|
|
|
||
|
|
PUB sscanf2(str, fmtstr, parg1, parg2)
|
||
|
|
{{
|
||
|
|
This is a version of sscanf with a format string and two parameters.
|
||
|
|
}}
|
||
|
|
vsscanf(str, fmtstr, @parg1)
|
||
|
|
|
||
|
|
PUB sscanf3(str, fmtstr, parg1, parg2, parg3)
|
||
|
|
{{
|
||
|
|
This is a version of sscanf with a format string and three parameters.
|
||
|
|
}}
|
||
|
|
vsscanf(str, fmtstr, @parg1)
|
||
|
|
|
||
|
|
PUB sscanf4(str, fmtstr, parg1, parg2, parg3, parg4)
|
||
|
|
{{
|
||
|
|
This is a version of sscanf with a format string and four parameters.
|
||
|
|
}}
|
||
|
|
vsscanf(str, fmtstr, @parg1)
|
||
|
|
|
||
|
|
PUB vsscanf(str, fmtstr, arglist) | parg
|
||
|
|
{{
|
||
|
|
This routine converts the contents of the string pointed to by "str" into
|
||
|
|
numerical values that are stored at the locations derermined by the list of
|
||
|
|
long pointers in "arglist". The format string contains conversion flags,
|
||
|
|
which are prefixed with the % character. The list of conversion flags is
|
||
|
|
as follows:
|
||
|
|
|
||
|
|
b - Convert a binary number
|
||
|
|
o - Convert an octal number
|
||
|
|
d - Convert a signed decimal number
|
||
|
|
x - Convert a hexadecimal number
|
||
|
|
f - Convert a floating point number
|
||
|
|
e - Same as f
|
||
|
|
|
||
|
|
Any other characters will be ignored, and will cause a character to be skipped
|
||
|
|
on the input string. Leading spaces are also ignored when converting a
|
||
|
|
number.
|
||
|
|
}}
|
||
|
|
parg := long[arglist]
|
||
|
|
arglist += 4
|
||
|
|
repeat while byte[fmtstr]
|
||
|
|
if byte[fmtstr++] == "%"
|
||
|
|
case byte[fmtstr]
|
||
|
|
"b" : long[parg] := getbin(@str)
|
||
|
|
"o" : long[parg] := getoct(@str)
|
||
|
|
"d" : long[parg] := getdec(@str)
|
||
|
|
"x" : long[parg] := gethex(@str)
|
||
|
|
"f", "e" : long[parg] := fstr.strtofloat(@str)
|
||
|
|
other: str++
|
||
|
|
fmtstr++
|
||
|
|
parg := long[arglist]
|
||
|
|
arglist += 4
|
||
|
|
else
|
||
|
|
str++
|
||
|
|
|
||
|
|
PRI getbin(pstr) | str
|
||
|
|
{{
|
||
|
|
This private routine is used by vsscanf to convert a string of binary digits to
|
||
|
|
a numerical value.
|
||
|
|
}}
|
||
|
|
str := long[pstr]
|
||
|
|
repeat while byte[str] == " "
|
||
|
|
str++
|
||
|
|
repeat while (byte[str] & $fe) == "0"
|
||
|
|
result := (result << 1) + (byte[str++] & 1)
|
||
|
|
long[pstr] := str
|
||
|
|
|
||
|
|
PRI getoct(pstr) | str
|
||
|
|
{{
|
||
|
|
This private routine is used by vsscanf to convert a string of octal digits to
|
||
|
|
a numerical value.
|
||
|
|
}}
|
||
|
|
str := long[pstr]
|
||
|
|
repeat while byte[str] == " "
|
||
|
|
str++
|
||
|
|
repeat while (byte[str] & $f8) == "0"
|
||
|
|
result := (result << 3) + (byte[str++] & 7)
|
||
|
|
long[pstr] := str
|
||
|
|
|
||
|
|
PRI gethex(pstr) | str, char
|
||
|
|
{{
|
||
|
|
This private routine is used by vsscanf to convert a string of hexadecimal digits to
|
||
|
|
a numerical value.
|
||
|
|
}}
|
||
|
|
str := long[pstr]
|
||
|
|
repeat while byte[str] == " "
|
||
|
|
str++
|
||
|
|
repeat
|
||
|
|
char := byte[str++]
|
||
|
|
case char
|
||
|
|
"0".."9": result := (result << 4) + char - "0"
|
||
|
|
"a".."f": result := (result << 4) + char - "a" + 10
|
||
|
|
"A".."F": result := (result << 4) + char - "A" + 10
|
||
|
|
other : quit
|
||
|
|
long[pstr] := str - 1
|
||
|
|
|
||
|
|
PRI getdec(pstr) | str, signflag
|
||
|
|
{{
|
||
|
|
This private routine is used by vsscanf to convert a string of decimal digits to
|
||
|
|
a numerical value.
|
||
|
|
}}
|
||
|
|
signflag := 0
|
||
|
|
str := long[pstr]
|
||
|
|
repeat while byte[str] == " "
|
||
|
|
str++
|
||
|
|
if isdigit(byte[str])
|
||
|
|
result:= byte[str] - "0"
|
||
|
|
elseif byte[str] == "-"
|
||
|
|
signflag := 1
|
||
|
|
elseif byte[str] <> "+"
|
||
|
|
long[pstr] := str
|
||
|
|
return
|
||
|
|
str++
|
||
|
|
repeat while isdigit(byte[str])
|
||
|
|
result := (result * 10) + byte[str++] - "0"
|
||
|
|
if signflag
|
||
|
|
result := -result
|
||
|
|
long[pstr] := str
|
||
|
|
|
||
|
|
'******************************************************************************
|
||
|
|
' Malloc Routines
|
||
|
|
'******************************************************************************
|
||
|
|
PUB malloc(size)
|
||
|
|
{{
|
||
|
|
This routine provides an interface to the malloc routine in cmalloc.spin
|
||
|
|
}}
|
||
|
|
return mem.malloc(size)
|
||
|
|
|
||
|
|
PUB free(ptr)
|
||
|
|
{{
|
||
|
|
This routine provides an interface to the free routine in cmalloc.spin
|
||
|
|
}}
|
||
|
|
return mem.free(ptr)
|
||
|
|
|
||
|
|
PUB calloc(size)
|
||
|
|
{{
|
||
|
|
This routine provides an interface to the calloc routine in cmalloc.spin
|
||
|
|
}}
|
||
|
|
return mem.calloc(size)
|
||
|
|
|
||
|
|
'******************************************************************************
|
||
|
|
' Standard I/O redirection routines
|
||
|
|
'******************************************************************************
|
||
|
|
PUB setstdin(stream)
|
||
|
|
memcpy(stdin, stream, stream_size)
|
||
|
|
|
||
|
|
PUB setstdout(stream)
|
||
|
|
echoflag := 0
|
||
|
|
memcpy(stdout, stream, stream_size)
|
||
|
|
|
||
|
|
PUB resetstdin
|
||
|
|
memcpy(stdin, stdio, stream_size)
|
||
|
|
|
||
|
|
PUB resetstdout
|
||
|
|
echoflag := 1
|
||
|
|
memcpy(stdout, stdio, stream_size)
|
||
|
|
|
||
|
|
PUB getstdin
|
||
|
|
return stdin
|
||
|
|
|
||
|
|
PUB getstdout
|
||
|
|
return stdout
|
||
|
|
|
||
|
|
PUB CheckStackSpace
|
||
|
|
printf1(string("The last %d longs have not been used on the stack\n"), mem.CheckStackSpace)
|
||
|
|
|
||
|
|
PUB CheckMallocSpace | ptr, numalloc, numfree
|
||
|
|
numalloc := 0
|
||
|
|
numfree := 0
|
||
|
|
ptr := mem.GetMallocList
|
||
|
|
printf0(string("MallocList\n"))
|
||
|
|
repeat while(ptr)
|
||
|
|
printf2(string("addr = %04x size = %d\n"), ptr, word[ptr][1])
|
||
|
|
numalloc += word[ptr][1]
|
||
|
|
ptr := word[ptr]
|
||
|
|
ptr := mem.GetFreeList
|
||
|
|
printf0(string("FreeList\n"))
|
||
|
|
repeat while(ptr)
|
||
|
|
printf2(string("addr = %04x size = %d\n"), ptr, word[ptr][1])
|
||
|
|
numfree += word[ptr][1]
|
||
|
|
ptr := word[ptr]
|
||
|
|
printf2(string("%d bytes allocated, %d bytes free\n"), numalloc, numfree)
|
||
|
|
|
||
|
|
{{
|
||
|
|
┌──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
|
||
|
|
│ TERMS OF USE: MIT License │
|
||
|
|
├──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
|
||
|
|
│Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation │
|
||
|
|
│files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, │
|
||
|
|
│modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software│
|
||
|
|
│is furnished to do so, subject to the following conditions: │
|
||
|
|
│ │
|
||
|
|
│The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.│
|
||
|
|
│ │
|
||
|
|
│THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE │
|
||
|
|
│WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR │
|
||
|
|
│COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, │
|
||
|
|
│ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. │
|
||
|
|
└──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
|
||
|
|
}}
|