62 lines
1.9 KiB
Groff
62 lines
1.9 KiB
Groff
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.TH EM_PC ACK
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.ad
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.SH NAME
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em_pc \- Pascal compiler
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.SH SYNOPSIS
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.B em_pc
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.RI [ option ]
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.I source
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.I destination
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.SH DESCRIPTION
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.I Em_pc
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is a compiler that translates Pascal programs into EM code.
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The input is taken from
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.IR source ,
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while the EM code is written on
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.IR destination .
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.br
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.I Option
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is a, possibly empty, sequence of the following combinations:
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.IP \fB\-M\fP\fIn\fP
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set maximum identifier length to \fIn\fP.
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The minimum value for \fIn\fR is 9, because the keyword
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"PROCEDURE" is that long.
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.IP \fB\-n\fR
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do not generate EM register messages.
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The user-declared variables will not be stored into registers on the target
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machine.
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.IP \fB\-L\fR
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do not generate the EM \fBfil\fR and \fBlin\fR instructions that enable
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an interpreter to keep track of the current location in the source code.
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.IP \fB\-V\fIcm\fR.\fIn\fR,\ \fB\-V\fIcm\fR.\fIncm\fR.\fIn\fR\ ...
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.br
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set the size and alignment requirements.
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The letter \fIc\fR indicates the simple type, which is one of
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\fBw\fR(word size), \fBi\fR(INTEGER), \fBf\fR(REAL), or \fBp\fR(POINTER).
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It may also be the letter \fBS\fR, indicating that an initial
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record alignment follows.
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The \fIm\fR parameter can be used to specify the length of the type (in bytes)
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and the \fIn\fR parameter for the alignment of that type.
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Absence of \fIm\fR or \fIn\fR causes a default value to be retained.
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.IP \fB\-w\fR
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suppress warning messages.
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.IP \fB\-u\fR
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The character '_' is treated like a letter, so it is allowed to use the
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underscore in identifiers.
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.IP \fB\-i\fR\fInum\fR
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maximum number of bits in a set. When not used, a default value is
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retained.
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.IP \fB\-C\fR
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The lower case and upper case letters are treated different.
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.IP \fB\-r\fR
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The rangechecks are generated where necessary.
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.LP
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.SH FILES
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.IR ~em/lib/em_pc :
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binary of the Pascal compiler.
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.SH DIAGNOSTICS
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All warning and error messages are written on standard error output.
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.SH REMARKS
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Debugging and profiling facilities may be present during the development
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of \fIem_pc\fP.
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