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+ Remarks from translator
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@ -539,7 +539,6 @@ following constants :
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\item \var{VolumeId = 08h}
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\item \var{Directory = 10h}
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\item \var{Archive = 20h}
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\item \var{AnyFile = 3fh}
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\end{itemize}
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Under \linux, supported attributes are:
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\begin{itemize}
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@ -630,7 +629,7 @@ Procedure Intr (IntNo: byte; var Regs: registers);
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returned, the processor registers are saved in \var{Regs}.
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\Errors
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Under \linux this call does nothing, because interrupts are managed by the
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kernel. The only allowed interrupt is 80h, the kernel entry interrupt.
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kernel. The only allowed interrupt is 80h, the Linux kernel entry interrupt.
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\SeeAlso
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\seep{MSDos}, see the \linux unit.
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\end{procedure}
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@ -213,6 +213,8 @@
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%
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\ifpdf
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\usepackage[pdftex,bookmarks=true]{hyperref}
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\usepackage{times}
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\usepackage[T1]{fontenc}
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\pdfcompresslevel=9
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\pdfpagewidth=210mm
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\pdfpageheight=297mm
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@ -21,6 +21,12 @@
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\chapter{The GETOPTS unit.}
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This document describes the GETOPTS unit for Free Pascal. It was written for
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\linux\ by Micha\"el Van Canneyt. It also works under DOS and Tp7.
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The getopts unit provides a mechanism to handle command-line options in
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a structured way, much like the GNU getopts mechanism. It allows you to
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define the valid options for you program, and the unit will then parse the
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command-line options for you, and inform you of any errors.
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The chapter is divided in 2 sections:
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\begin{itemize}
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\item The first section lists types, constants and variables from the
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@ -3,14 +3,14 @@ This chapter of the documentation describe the GO32 unit for the Free Pascal
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compiler under \dos. It was donated by Thomas Schatzl
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(tom\_at\_work@geocities.com), for which my thanks.
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This unit was first written for \dos by Florian Klaempfl.
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This chapter is divided in three sections. The first section is an
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introduction to the GO32 unit. The second section lists the pre-defined
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constants, types and variables. The third section describes the functions
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This chapter is divided in four sections. The first two sections are an
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introduction to the GO32 unit. The third section lists the pre-defined
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constants, types and variables. The last section describes the functions
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which appear in the interface part of the GO32 unit.
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\section{Introduction}
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These docs contain information about the GO32 unit. Only the GO32V2 DPMI
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mode is discussed by me here due to the fact that new applications shouldn't
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be created with the older GO32V1 model. The former is much more advanced and
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be created with the older GO32V1 model. The go32v2 version is much more advanced and
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better. Additionally a lot of functions only work in DPMI mode anyway.
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I hope the following explanations and introductions aren't too confusing at
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all. If you notice an error or bug send it to the FPC mailing list or
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@ -103,8 +103,8 @@ Interrupts are program interruption requests, which in one or another way
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get to the processor; there's a distinction between software and hardware
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interrupts. The former are explicitely called by an 'int' instruction and
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are a bit comparable to normal functions. Hardware interrupts come from
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external devices like the keyboard or mouse. These functions are called
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handlers.
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external devices like the keyboard or mouse. Functions that handle hardware
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interrupts are called handlers.
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\subsection{Handling interrupts with DPMI}
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The interrupt functions are real-mode procedures; they normally can't be
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called in protected mode without the risk of an protection fault. So the
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@ -210,7 +210,7 @@ interrupt, a \dos memory block or any other convenient mechanism.
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When the real mode program calls the callback (via a far call), the DPMI
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host saves the registers contents in the supplied register data structure,
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switches into protected mode, and enters the callback routine with the
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following conditions:
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following settings:
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\begin{itemize}
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\item interrupts disabled
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\item \var{\%CS:\%EIP} = 48 bit pointer specified in the original call to
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@ -403,9 +403,10 @@ Returned values: blockhandle - the memory handle to this memory block. Linear
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address of the requested memory.
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Notes: WARNING: According to my DPMI docs this function is not implemented
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correctly. Normally you should also get a blockhandle to this block after
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successful operation. This handle is used to free the memory block
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afterwards or use this handle for other purposes. So this block can't be
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deallocated and is henceforth unusuable !
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successful operation. This handle can then be used to free the memory block
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afterwards or use this handle for other purposes. Since the function isn't
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implemented correctly, and doesn't return a blockhandle, the block can't be
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deallocated and is hence unusuable !
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This function doesn't allocate any descriptors for this block, it's the
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applications resposibility to allocate and initialize for accessing this
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memory.
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@ -467,7 +468,7 @@ Creates a new descriptor that has the same base and limit as the specified
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descriptor.
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Parameters:
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\begin{description}
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\item[seg:\ ] selector.
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\item[seg:\ ] Descriptor.
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\end{description}
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Return values: The data selector (alias).
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Notes: In effect, the function returns a copy of the descriptor. The
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@ -954,7 +955,7 @@ Function get\_segment\_base\_address
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specified segment.
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Parameters:
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\begin{description}
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\item[d:\ ] selector of the descriptor you want the base address.
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\item[d:\ ] selector of the descriptor you want the base address of.
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\end{description}
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Return values: Linear base address of specified descriptor.
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@ -76,7 +76,7 @@
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When the \var{-vw} switch is used, then the compiler warns you if
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it finds nested comments. Nested comments are not allowed in Turbo Pascal
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and can be a possible source of errors.
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\item [Note: argF directive (FAR) ignored]
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\item [Note: directive (FAR) ignored]
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The \var{FAR} directive is a 16-bit construction which is recorgnised
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but ignored by the compiler, since it produces 32 bit code.
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\item [Note: Stack check is global under Linux]
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