85 lines
2.2 KiB
Plaintext
85 lines
2.2 KiB
Plaintext
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KCPMTK : KYLE'S CP/M TOOLKIT
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This is a collection of programs and source libraries that are
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useful for working with CP/M.
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TOOLS
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- DUMP.COM, UNDUMP.COM
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DUMP outputs a hexadecimal-encoded version of a file along with
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an address counter. UNDUMP takes this output and can return an
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Intel hex version or produce a binary file.
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The original purpose of this repository was to write UNDUMP, which
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reverses the output of the DUMP.COM utility. After working with a
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CP/M which didn't have DUMP.COM, I wrote my own version.
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- DOWNLOAD.COM, UPLOAD.COM
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A pair of tools that mimics the utility shipped with the RC2014,
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which comes by way of Grant Searle's tools.
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LIBRARIES
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1. COMMON.PAS
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COMMON is a collection of routines that are, you guessed it, commonly
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useful.
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Types
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-----
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- FilePath is a string used for storing filenames on CP/M.
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2. BINARY.PAS
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BINARY is a collection of routines for handling binary data. It has
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functions for dealing with digits (e.g. Byte values in the range
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$0 .. $F), bytes, and words. When dealing with invalid values, the
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code returns 0 instead of a garbage value. This is an arbitrary
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choice.
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Types
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-----
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- BStr ('byte string') defines a string for containing an hex-
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encoded byte.
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- WStr ('word string') defines a string for containing a hex-
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encoded word.
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- BinFile is a file of bytes.
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Procedures
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----------
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- Procedure ExpandFile(var fil : BinFile; var pos : Integer; pad : Integer);
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ExpandFile will pad out the file with enough bytes. The `pos` parameter
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is used to track the file position after expansion.
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- function ValidHexDigit(bval: Byte): Boolean;
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Returns True if the byte is between the range of $0 .. $F.
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- function ReadDigit(bchr: Char): Byte;
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ReadDigit converts a single character representing an octal, decimal,
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or hexadecimal digit to a byte; the octal and decimal support are
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incidental.
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- function ReadByte(bstr : BStr): Byte;
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function ReadWord(bstr : WStr): Integer;
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Given a string that contains a hex-encoded byte or word, return the
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decoded value.
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- function WriteByte(bval : Byte): BStr;
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function WriteWord(bval : Integer): WStr;
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Given a byte or word value, return its hex-encoded string
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representation.
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